Dubai Building Code (2021)

Dubai Building Code

Part G: Incoming utilities

G 113

The work required to connect a projects infrastructure to any SP infrastructure

shall be minimized. Connection points at the plot boundary shall be designed after

consulting with utilities records to establish existing SP infrastructure in the site area.
All ducts designed and installed by the Developer shall:
a)

be made from black PVC-U or HDPE;

b) be of smooth bore construction;
c)

be buried to a depth of 600 mm below the finished ground level;

d)  be sloping away from the building;
e)  be protected by concrete when running under permanent paved surfaces;
f)  be sealed at each end to prevent the ingress of water, sub-soil, gas, or pests;
g)  have an entry/pull box installed for any right-angled or sharp bends in the lead-in

duct (main and redundant) routes; and

h) include a draw rope in each duct made of twisted, mildew-resistant polypropylene

(minimum outside diameter of 6 mm; minimum tensile strength of 1,000 kg).

OSP shall meet the requirements that are summarized in Table G.35. OSP

requirements for mosques and other places of worship shall be in accordance with

Part K

G.11.3

Outside plant (OSP) common infrastructure specifications

G.11.3.1 Lead-in ducts

G.11.3.1.1 General

A series of lead-in ducts shall be provided from the BEP (and MMRs where present)

to MMCs within 2 m of the plot boundary. The lead-in ducts shall be reserved for the

use of the SPs.
All developments shall have a minimum of two lead-in routes. These routes shall be

geographically separated to support different SP routes. They shall provide physical

diversity, if required by the development type.
The MMC at each position shall enable separate duct connections from three

independent SPs. The SP connection to the chamber shall be a minimum of two

110 mm ducts. Alignment of each chamber shall allow the SP access face parallel to

the plot boundary. Sealed stubs shall be pre-installed from the chamber to the actual

boundary location.
Campus ducts from the MMC shall be installed to the BEP, installing additional

turning chambers and handholes as required on each specific route. If required, at

the entry to the BEP, a wide-angle long radius bend (factory-made) may be provided;

alternatively, entry boxes (for main and redundant routes) may be provided.

NOTE: The BEP may be located within the MTR.

Where the masterplan includes MMRs, the duct route to the BEP shall be via the

MMR plot(s). Six 110 mm ducts shall be installed to this route.
A maximum of two shallow bends up to 90° each may be included on any duct

section between chambers. The distance between maintenance holes/handholes

shall be not more than 200 m. Handholes shall not be used for turns, junctions or

accommodating any FTTx equipment.

Dubai Building Code

Part G: Incoming utilities

G 114

No. Item

Complex of villas

Building with
less than 50 tenants
or
up to G+5
or
building area up to

3,000 m

Building with
51 to 100 tenants
or
up to G+10
or
building area up to

7,000 m

Building with
101 to 300 tenants
or
building area more

than 7,000 m

Building
with more than 300

tenants

Shopping mall

Bulk service

buildings

Group of

warehouses, worker

accommodation and

factories

Entry box

JRC 12 for every 10

villas
JRC 12 for plot entry

per villa

JRC 12 for main

route
JRC 12 for

redundant route

JRC 12 for main

route
JRC 12 for

redundant route

JRC 12 for main

route
JRC 12 for

redundant route

JRC 12 for main

route
JRC 12 for

redundant route

JRC 12 for main

route
JRC 12 for

redundant route

JRC 12 for main

route
JRC 12 for

redundant route

JRC 12 for every 10

warehouses
JRC 12 for plot entry

per warehouse

Entry duct

2 × D56 (50 mm)

per villa

2 × D54 (100 mm)

for plot entry

2 × 100 mm primary

route

2 × 100 mm

secondary route

2 × 100 mm primary

route

2 × 100 mm

secondary route

2 × 100 mm primary

route

2 × 100 mm

secondary route

2 × D54 (100 mm)

primary route

2 × D54 (100 mm)

secondary route

2 × D54 (100 mm)

primary route

2 × D54 (100 mm)

secondary route

2 × D54 (100 mm)

primary route

2 × D54 (100 mm)

secondary route

2 × 100 mm per

warehouse

2 × 100 mm primary

plot entry

2 × 100 mm

secondary plot entry

MTR

(w × l × h)

Not applicable

2 m × 2 m × 3 m

3 m × 3 m × 3 m

2 m × 2 m × 3 m

RTMR

(w × l × h)

Not applicable

3 m × 3 m × 3 m

(considering G+10

floors or less)

3 m × 3 m × 3 m

(considering G+10

floors or less)

3 m × 3 m × 3 m

(considering G+10

floors or more)

3 m × 3 m × 3 m

(considering G+10

floors or more)

To be determined

during design

To be determined

during design

Not applicable

MSR

(w × l × h)

Not applicable

3 m × 3 m × 3 m

every ten floors

starting from the

lowest basement/

ground floor (G+10

floors or more)

3 m × 3 m × 3 m

every ten floors

starting from the

lowest basement/

ground floor (G+10

floors or more)

To be determined

during design

To be determined

during design

Not applicable

FTR

(w × l × h)

Not applicable

1 m × 0.6 m × 3 m

1 m × 1 m × 3 m

1.5 m × 1.5 m × 3 m 2 m × 2 m × 3 m

To be determined

during design

To be determined

during design

1 m × 1 m × 3 m

Riser cable

containment main

risers

Two of 50 mm

conduit

1 × 450 mm × 50

mm cable tray for

fixed services
1 × 300 mm × 50

mm cable tray for

IBS

1 × 450 mm × 50

mm cable tray for

fixed services
1 × 300 mm × 50

mm cable tray for

IBS

1 × 450 mm × 50

mm cable tray for

fixed services
1 × 300 mm × 50

mm cable tray for

IBS

1 × 450 mm × 50

mm cable tray for

fixed services
1 × 300 mm × 50

mm cable tray for

IBS

1 × 450 mm × 50

mm cable tray for

fixed services

IBS tray to be

determined during

design

To be determined

during design

Two of 50 mm

conduit

Table G.35 Summary of OSP requirements

Dubai Building Code

Part G: Incoming utilities

G 116

Key

01: Building with dual entry points

02: BEP

03: Development MMC A

04: Development MMC B

Figure G.61 Lead-in duct connections prepared for new SP infrastructure

G.11.3.1.3 Scenario 2 – SP duct network is still to be built

The Developer is responsible for extending MMC stub ducts to 1 m outside the plot

boundary (see Figure G.61). The building developer is responsible for locating and

clearly identifying lead-in ducts.

G.11.3.1.4 Entry boxes

Entry boxes and MMC shall be provided for SPs to install their cables through the

main and redundant lead-in ducts inside the plot. The type and size of entry/pull

boxes shall be selected to suit the characteristics of the building development.
All lead-in ducts shall be designed in coordination with the design of other buried

services.

G.11.3.1.5 BEP

The BEP may be the FCP interface between the feeder cabling and the in-building

network if not completed within the MMC.
The transition from outdoor to indoor cable shall be performed in the BEP within 2 m

of the cable exiting the duct where either:
a) sheath material of OSP cables is not suitable for installation within buildings; or

b) metallic armouring forms part of the cable construction.
Where main and redundant lead-in ducts cannot be routed directly into the MTR,

steel cable trays shall be provided from the BEP. The trays shall be located in common

areas, and shall be easily accessible to allow cables to be added in future. The trays

shall be covered if they are in an area accessible to the public and are less than 4.8 m

above the floor.
A cable tray of minimum dimensions 300 mm × 100 mm (w × h) with heavy duty

return flange (HDRF) shall be provided for each plot BEP (main and redundant).

05: Development boundary

06: Developer ducts capped 1 m outside

plot boundary for future SP connection

Dubai Building Code

Part G: Incoming utilities

G 117

G.11.3.2

Meet-me-room (MMR)

Where a need for one or more MMRs has been determined by the masterplan, the MMRs shall be positioned in accordance with the agreed site layout (see Figure G.62 and

Figure G.63).

Figure G.62

Incorporation of single MMR in a commercial multi-building development

Figure G.63

Incorporation of single MMR in a mixed use multi-building environment

Key

Main route cables

Redundant route cables

01: du feeder cables

02: Etisalat feeder cables

03: Distribution cables for buildings

04: Distribution cables for buildings by lead operator

05: MMR

06: du POP-A

07: du POP-B

08: Etisalat POP-B

09: Etisalat POP-A

10: Distribution cables for villas

Dubai Building Code

Part G: Incoming utilities

G 118

G.11.4 Inside plant common infrastructure

specifications (ISP)

G.11.4.1 Telecom rooms

G.11.4.1.1 General

The following types of telecom rooms shall be provided

based on the needs of the project.
a) main telecom room (MTR);
b)

floor telecom room (FTR);

c) mobile service room (MSR); and
d) rooftop mobile room (RTMR).
In multi-storey buildings, telecom rooms shall be

vertically aligned and linked by a shared cable pathway.

This cable pathway shall not reduce the minimum

required room space.
All telecom rooms shall be for the sole use of SPs. The

rooms shall be accessible to SP personnel 24 hours a

day and be secured from unauthorized entry.

NOTE: It is common for a key to be kept with the

facilities manager.

All telecom rooms shall conform to the fire safety

requirements of UAE FLSC

[Ref. G.1]

. If the

building Developer has any concerns about access

or the required fire safety provisions, these shall be

highlighted at the design stage.

G.11.4.1.2 Location

Telecom rooms shall be located away from any sources

of:
a)  heat;
b)  moisture;
c)  corrosive atmospheric or environmental conditions;
d)  high voltages;
e)

radio frequency interference (RFI); and

f) electromagnetic interference (EMI).
Telecom rooms shall not be located directly beneath

or next to wet areas such as showers, washrooms,

swimming pools and waste areas.

G.11.4.1.3 Maintenance

Telecom rooms shall be designed to be free of the

following items unless otherwise indicated in this

section:
a)  equipment not associated with the room;
b)  utility pipes;
c)  cables;
d)  sprinkler systems;
e)  windows.
Signage shall be added to the room to state “no

storage permitted”.

Rodents often gnaw cables, resulting in damage and

service disruption. Best practice pest control methods

shall be used to prevent pests from entering telecom

spaces and cable pathways.
Additional measures to protect against pests may

involve the installation of covers to cable trays. If used,

covers shall be removable to allow for the installation

of additional cables.

G.11.4.2

Main telecom rooms (MTRs)

The layout and service provision for MTRs shall be in

accordance with Table G.36.

A typical MTR layout is shown in Figure G.64.

MTR frame layouts shall be as detailed in Figure G.65

and Figure G.66.

Dubai Building Code

Part G: Incoming utilities

G 119

Parameter

Details and requirements
MTR (residential

buildings)

MTR (commercial

and mixed use

buildings)

FTR

Purpose

Termination of telecom cables and housing

telecom equipment.

The routing, splicing or

termination of telecom cables.

Location

Ground or basement floor level.

NOTE: Where single-tenant buildings have

tenant IT server rooms, the MTR should be

located adjacent to this position.

One per floor of multi-tenant

buildings (e.g. commercial or

residential buildings).

Minimum size

and layout

requirements

See Table G.35.
This shall be reviewed based on the building

use and number of tenants and the size

increased accordingly.
Room design shall enable safe and free

access within the MTR. All equipment

cabinets shall be provided with 1 m free

space to the front and rear of every cabinet

position.
Wall-mounted equipment shall be

positioned to provide safe and adequate

working areas for the installation and

maintenance of equipment.

See Table G.35.

Floor loading

10 kN/m

(distributed load).

10 kN/m

(distributed load).

Doors

Doors shall swing in the direction of egress

with an automatic door closer system fitted

on the hinged edge.

Minimum opening of 1 m × 2.1 m (w × h).

All doors shall be solid wood core or steel

construction with a minimum fire resistance

rating of 90 min.

Two doors shall swing in the

direction of egress with an

automatic door closer fitted on

the hinged edges. At least one

door shall be 810 mm wide in

accordance with Ch. 3 of UAE

FLSC

[Ref. G.1]

. Total minimum

opening of 1.5 m × 2.1 m (w × h).

All doors shall be solid wood

core or steel construction with a

minimum fire resistance rating of

90 min.

Table G.36

Layout and service requirements for MTRs and FTRs

Parameter

Details and requirements
MTR (residential

buildings)

MTR (commercial

and mixed use

buildings)

FTR

Labelling

Doors with du and Etisalat telecom room

labels.

Doors with du and Etisalat

telecom room labels.

Penetrations

All penetrations and openings to telecom

rooms shall be protected or fire-stopped in

accordance with Section 2 and Section 3, Ch.

1 of UAE FLSC

[Ref. G.1]

All ducts directly entering a telecom room

shall be water-sealed and gas-sealed.

All penetrations and openings to

telecom rooms shall be protected

or fire-stopped in accordance

with Section 2 and Section 3, Ch.

1 of UAE FLSC

[Ref. G.1]

All ducts directly entering a

telecom room shall be water-

sealed and gas-sealed.

Access

requirement

In order to move equipment into and out of

telecom rooms, access routes and doorways

from outside the building to these rooms

shall be greater than 1 m × 2.1 m (w × h).

Not applicable.

Wall and floor

finish

Rooms shall be free of contaminants and

pollutants.

All walls, floors and ceilings shall be finished

in such a way as to minimize dust and static

electricity.
Surfaces shall be painted with primer and a

light-coloured finish coat.

Rooms shall be free of

contaminants and pollutants.

All walls, floors and ceilings

shall be finished in such a way

as to minimize dust and static

electricity.
Surfaces shall be painted with

primer and a light-coloured finish

coat.

Compartmentation

and egress

Rooms shall conform to the fire and life

safety requirements of Table 1.9, Ch. 1 and

the applicable sections of Ch. 3 to Ch. 10 of

UAE FLSC

[Ref. G.1]

Rooms shall conform to the fire

and life safety requirements

of Table 1.9, Ch. 1 and the

applicable sections of Ch. 3 to Ch.

10 of UAE FLSC

[Ref. G.1]

Fire suppression

Water sprinklers shall not be used.

Rooms ≥ 10 m

in gross area shall be

protected with clean agent as required by

Table 9.30, Ch. 9 of UAE FLSC

[Ref. G.1]

Water sprinklers shall not be used.
Clean agent suppression systems

are not required in typical FTRs

(see Ch. 9 of UAE FLSC

[Ref. G.1]

)

Dubai Building Code

Part G: Incoming utilities

G 120

Parameter

Details and requirements
MTR (residential

buildings)

MTR (commercial

and mixed use

buildings)

FTR

Fire extinguishers

One handheld CO

cylinder extinguisher

and one handheld multi-purpose powder

extinguisher to be provided inside the room.

One handheld CO

cylinder

extinguisher and one handheld

multi-purpose powder

extinguisher to be provided inside

the room.

Task lighting

Task lighting shall be provided to the front

and rear face of equipment cabinets, with a

minimum of 500 lux maintained at

1,000 mm above finished floor level (FFL).

Task lighting shall be provided

to the front and rear face of

equipment cabinets with a

minimum of 500 lux maintained

at 1,000 mm above FFL.

Emergency lighting To be provided in accordance with Ch. 6 of

UAE FLSC

[Ref. G.1]

To be provided in accordance with

Ch. 8 of UAE FLSC

[Ref. G.1].

Smoke detectors

To be provided in accordance with Ch. 6 of

UAE FLSC

[Ref. G.1]

To be provided in accordance with

Ch. 8 of UAE FLSC

[Ref. G.1]

General power

Four 13 A twin sockets fed from the

essential power supply with a dedicated

20 A circuit breaker.

One 13 A twin socket.

Telecoms power

Two ×32 A TP

isolator fed with

dedicated feeder

from essential power

supply (EDB).

Two × 40 A TP

isolator fed with

dedicated feeder

from essential power

supply (EDB).

Not applicable.

Earthing

arrangements

One room earth bar. Two room earth

bars connected to

dedicated earth pits

with resistance less

than 1 Ω.

One room earth bar.

Parameter

Details and requirements
MTR (residential

buildings)

MTR (commercial

and mixed use

buildings)

FTR

Cooling design

All cooling shall be designed such that

cold air is delivered to the front working

face of the telecom equipment cabinets.

This may be directly from the air handling

unit (AHU) or by ducted supply. Return air

shall be allowed to circulate to the AHUs

naturally. AHUs shall be positioned such

as to maintain efficiency of the system by

avoiding mixing of the return air and cold

air paths.

All cooling shall be designed such

that cold air is delivered to the

front working face of the telecom

equipment cabinets. This may

be directly from the AHU or by

ducted supply. Return air shall

be allowed to circulate to the

AHUs naturally. AHUs shall be

positioned such as to maintain

efficiency of the system by

avoiding mixing of the return air

and cold air paths.

Cooling

Air conditioning

unit to maintain

the temperature at

24 °C.

Dedicated air

conditioning system

to maintain the

temperature at

21 °C ± 1 °C and the

relative humidity at

50% ± 10%.

A/C system (ducted

split FCU), duty and

standby units with

interlocking.
A/C power from

essential power

supply (EDB).

Heat dissipation

300 W m

/3 kW per

rack.

Not applicable.

Table G.36 Layout and service requirements for MTRs and FTRs (continued)

Dubai Building Code

Part G: Incoming utilities

G 124

G.11.4.4 Mobile network services

G.11.4.4.1 General

NOTE 1: The technologies associated with mobile/cellular network services are

evolving and new requirements will arise over time. In Dubai, the FTTx SPs, du and

Etisalat, are also the mobile network operators (MNOs).

The Developer shall consult the MNOs at an early stage of design development

to determine their specific requirements and any impacts on the design of the

building(s). Guidance is provided in Table G.37.

Number of floors

MSR
Size (w x l x h)

RTMR
Size (w x l x h)

Up to G+10

Not applicable.

3 m × 3 m × 3 m

G+11 to G+100

3 m × 3 m × 3 m (every 10

floors starting from the

basement level/ground floor).

3 m × 3 m × 3 m

Shopping mall/bulk service

buildings

To be determined in consultation with MNOs.

Cluster of buildings with each

having more than G+5 floors

To be determined in consultation with MNOs.

Table G.37 Sizes of MSR and RTMR rooms

The Developer shall follow the requirements of the MNOs associated with mobile

network services within buildings and surrounding outdoor areas.

NOTE 2: This includes, but is not limited to, provision of rooms and associated MEP

services (e.g. cable pathways, electrical and mechanical) required by the MNOs to

deploy any in-building and external infrastructure.

G.11.4.4.2 Rooftop mobile rooms (RTMRs)

An RTMR shall be provided by Developers on all multi-tenant buildings.
Space shall be reserved on the rooftop for the installation of mobile service antennas.

NOTE 1: Antenna arrangements vary between buildings. They are typically positioned

at the corners of buildings or on any raised structure on the rooftop.

The need for RTMR, coordination of position on the rooftop and detailed antenna

arrangement shall be determined by the Developer during consultation with the

MNOs at the early design stage.
On sites with multiple buildings, the MNO consultation shall determine which

buildings require an RMTR.
The layout and service provision for RTMRs shall be in accordance with Table G.38.

A typical RTMR layout is shown in Figure G.69.

Dubai Building Code

Part G: Incoming utilities

G 125

Parameter

Details and requirements

RTMRs

MSRs

Purpose

Supports the deployment of

installations for area mobile

coverage.

Supports the deployment of

installations for area mobile

coverage.

Location

Rooftop

In all multi-tenant buildings which

are above G+10 floors, provided on

every 10th floor starting from the

basement/ground floors. Where

possible, located adjacent to the FTR

position

Minimum size and

layout requirements

(w × l × h)

3 m × 3 m × 3 m

Floor loading

10 kN/m

(distributed load).

10 kN/m

(distributed load).

Doors

Door shall swing in the direction of

egress with an automatic door closer

system fitted on the hinged edge.

Minimum opening of 1 m × 2.1 m

(w × h).

All doors shall be solid wood core or

steel construction with a minimum

fire resistance rating of 90 min.

Door shall swing in the direction of

egress with an automatic door closer

system fitted on the hinged edge.

Minimum opening of 1 m × 2.1 m

(w × h).

All doors shall be solid wood core or

steel construction with a minimum

fire resistance rating of 90 min.

Labelling

Doors labelled as “Mobile Service

Room”.

Doors labelled as “Mobile Service

Room”.

Penetrations

All penetrations and openings to

telecom rooms shall be protected

or fire-stopped in accordance with

Section 2 and Section 3, Ch. 1 of

UAE FLSC

[Ref. G.1]

All ducts directly entering a telecom

room shall be water-sealed and gas-

sealed.

All penetrations and openings to

telecom rooms shall be protected

or fire-stopped in accordance with

Section 2 and Section 3, Ch. 1 of

UAE FLSC

[Ref. G.1]

All ducts directly entering a telecom

room shall be water-sealed and gas-

sealed.

Table G.38

Layout and service requirements for RTMRs and MSRs

Parameter

Details and requirements

RTMRs

MSRs

Cable pathways

External antenna cable routes.

Openings shall be 600 mm × 400

mm (w × h), 500 mm below the room

ceiling in walls facing the building’s

rooftop area.
Connected to building riser through

300 mm × 50 mm vertical cable tray.

Connected to building riser through

300 mm × 50 mm vertical cable tray.

Wall and floor finish

Rooms shall be free of contaminants

and pollutants.

All walls, floors and ceilings shall be

finished in such a way as to minimize

dust and static electricity.
Surfaces shall be painted with primer

and a light-coloured finish coat.

Rooms shall be free of contaminants

and pollutants.

All walls, floors and ceilings shall be

finished in such a way as to minimize

dust and static electricity.
Surfaces shall be painted with primer

and a light-coloured finish coat.

Compartmentation

and egress

Rooms shall conform to the fire and

life safety requirements of Table 1.9,

Ch. 1 and the applicable sections of

Ch. 3 to Ch. 10 of

UAE FLSC

[Ref. G.1]

Rooms shall conform to the fire and

life safety requirements of Table 1.9,

Ch. 1 and the applicable sections of

Ch. 3 to Ch. 10 of

UAE FLSC

[Ref. G.1]

Fire suppression

Water sprinklers shall not be used.

Rooms ≥ 10 m

in gross area shall

be protected with clean agent as

required by Table 9.30, Ch. 9 of

UAE FLSC

[Ref. G.1]

Water sprinklers shall not be used.

Rooms ≥ 10 m

in gross area shall

be protected with clean agent as

required by Table 9.30, Ch. 9 of

UAE FLSC

[Ref. G.1]

Fire extinguishers

One handheld CO

cylinder

extinguisher and one handheld multi-

purpose powder extinguisher to be

provided inside the room.

One handheld CO

cylinder

extinguisher and one handheld multi-

purpose powder extinguisher to be

provided inside the room.

Dubai Building Code

Part G: Incoming utilities

G 126

Parameter

Details and requirements

RTMRs

MSRs

Task lighting

Task lighting shall be provided to

the front and rear face of equipment

cabinets with a minimum of 500 lux

maintained at 1,000 mm above FFL.

Task lighting shall be provided to

the front and rear face of equipment

cabinets with a minimum of 500 lux

maintained at 1,000 mm above FFL.

Emergency lighting

To be provided in accordance with

Ch. 6 of UAE FLSC

[Ref. G.1]

To be provided in accordance with

Ch. 6 of UAE FLSC

[Ref. G.1]

Smoke detectors

To be provided in accordance with

Ch. 8 of UAE FLSC

[Ref. G.1]

To be provided in accordance with

Ch. 8 of UAE FLSC

[Ref. G.1]

General power

Four 13 A twin sockets fed from

the essential power supply with a

dedicated 20 A circuit breaker.

Four 13 A twin sockets fed from

the essential power supply with

dedicated 20 A circuit breaker.

Telecoms power

Two 63 A TP isolators fed with

dedicated feeder from essential

power supply.

Two 63 A TP isolators fed with

dedicated feeder from essential

power supply.

Earthing

arrangements

Two room earth bars connected to

dedicated earth pits with resistance

less than 1 Ω.

Two room earth bars connected to

dedicated earth pits with resistance

less than 1 Ω.

Cooling design

All cooling shall be designed such

that cold air is delivered to the

front working face of the telecom

equipment cabinets. This may be

directly from the air handling unit

(AHU) or by ducted supply. Return

air shall be allowed to circulate to

the AHUs naturally. AHUs shall

be positioned such as to maintain

efficiency of the system by avoiding

mixing of the return air and cold air

paths.

All cooling shall be designed such

that cold air is delivered to the

front working face of the telecom

equipment cabinets. This may be

directly from the AHU or by ducted

supply. Return air shall be allowed

to circulate to the AHUs naturally.

AHUs shall be positioned such as to

maintain efficiency of the system by

avoiding mixing of the return air and

cold air paths.

Table G.38 Layout and service requirements for RTMRs and MSRs (continued)

Parameter

Details and requirements

RTMRs

MSRs

Cooling

Dedicated air conditioning system to

maintain the temperature at 21 °C

± 1 °C and the relative humidity at

50% ± 10%.
A/C system (ducted split FCU), duty

and standby units with interlocking.
A/C power from essential power

supply.

Heat dissipation 36 kW.

Dedicated air conditioning system to

maintain the temperature at 21 °C

± 1 °C and the relative humidity at

50% ± 10%.
A/C system (ducted split FCU), duty

and standby units with interlocking.
A/C power from essential power

supply.

Heat dissipation 12 kW.

Key

01: Cross connect cabinet

02: AC clean earth bar

03: DC clean earth bar

04: 32 A twin socket fed from

utility power with dedicated

circuit breaker

05: Smoke detector connected

to BMS

06: 300 mm width cable ladder

at high level

07: 2 × 63 A three-phase isolator

fed from essential building power

08: 2 × handheld extinguishers

09: Opening for containments

Figure G.69

Typical layout for RTMR and MSRs

Dubai Building Code

Part G: Incoming utilities

G 127

G.11.4.4.3 Mobile service rooms (MSRs)

The layout and service provision for MSRs shall be in

accordance with Table G.38.

NOTE: A typical MSR layout is shown in Figure G.69.

For major developments including malls, airports,

stadiums and other large buildings all mobile service

room provisions are subject to specific requirements

to be agreed by the Developer with the MNOs

with consideration of the specific mobile capacity

requirements of the development.

G.11.4.5

Apartment/office/retail consolidation

cabinets

Each tenant space shall be provided with a

consolidation cabinet (see Figure G.70 or Figure G.71)

Each cabinet shall be capable of accommodating two

telecom operators’ requirements at the same time (see

Figure G.72).
Optical fibre cabling from the FTR to each

consolidation cabinet shall comprise one 4-core fibre

cable.
Consolidation cabinets shall be provided in accordance

with Table G.39.

Figure G.70 Consolidation cabinet 450 mm × 150 mm – to serve premises up to 8-port

Figure G.71 Consolidation cabinet 600 mm × 300 mm – to serve premises more than 8-port

Key

01: RJ45 patch panel – 1U

02: Cable management panel – 1U

03: 4 port fibre termination box (2-ports SC/APC

and 2 ports LC/APC)

04: Perforated door

05: 13 A twin socket (from dedicated circuit breaker)

06: Bottom area left with free space for operator’s

use

Key

01: 13 A twin socket (from dedicated circuit breaker)

02: Metallic shelf for Etisalat – 1U

03: 4 port fibre termination box (2-ports SC/APC

and 2 ports LC/APC)

04: Perforated door

05: RJ45 patch panel – 1U

06: Cable management panel – 1U

07: Metallic shelf for du – 1U

Dubai Building Code

Part G: Incoming utilities

G 128

Figure G.72 Fibre termination box fitted within consolidation cabinet

Key

01: 4 core SM indoor drop fibre cable – flat cross-section

02: SC/APC to SC/APC simplex patch cord

03: LC/APC to SC/APC simplex patch cord

04: Fibre termination box with 2-port SC/APC and 2-port LC/APC

05: Optical network terminal

Parameter

Details and requirements

Apartment/office/retail up to eight

loaded copper port

Apartment/office/retail eight to

twenty four loaded copper ports

Minimum internal

dimension (h × w × d)

12U, 450 mm × 150 mm

12U, 600 mm × 300 mm or 150 mm

Mounting location

Concealed in the wall with the front of the cabinet flush with the wall.

Mounting restrictions

Located in an accessible area inside the tenant premises, close to the

entrance and not inside the kitchen, pantry, washroom, laundry room or

bedroom.
Not close to sources of water or heat.
Not close to any electrical distribution or busbars.

Mounting height

Installed with the bottom of the cabinet at a height of 600 mm to 1,200 mm

above FFL, according to site conditions.

Equipment clearance

1 m free space to the front of the cabinet.

Area lighting

Minimum of 500 lux maintained at 1,000 mm above FFL.

Ventilation

Minimum of one air change per hour.

Copper cabling patch

panel

24-port 450 mm copper patch panel. 24-port 600 mm copper patch panel.

Twisted pair copper

cabling

24 copper cables or less per tenant.

More than 24 copper cables per

tenant.

Cable management

Cable entries to accommodate incoming fibre optic and copper cables.
Horizontal cable management for copper patch cables.

Optical fibre

termination

Fibre terminal box with adapters and pigtails for two LC/APC ports and two

SC/APC ports for a 4-core SM fibre drop cable termination.

Security

Lockable front door.

Power

13 A dual socket outlet inside the consolidation cabinet, with dedicated

circuit breaker on the domestic supply and not looped with other general

power socket outlets.

Labelling

Floor/flat number.

Table G.39

Minimum specifications for consolidation cabinet

Dubai Building Code

Part G: Incoming utilities

G 129

G.11.4.6 Labour accommodation consolidation cabinet

G.11.4.6.1 General

The SP general internet service to labour accommodation buildings shall be provided

as a dedicated service in each accommodation unit. Designs may allow for the future

deployment of WiFi-based access.

A single MTR/MMR can serve multiple accommodation buildings on the same site.

Where cable is run between buildings, the cable shall be internal/external grade.

Cables shall be installed within a flexible sub-duct for all external routes, owing to

their small diameter.
Consolidation cabinets shall be provided in accordance with Table G.40.
Each cabinet shall be capable of accommodating two-SP ONTs at the same time.

Copper cabling to final TO positions shall be a minimum specification of category 6.

Developers may future-proof the installation through use of category 6 A cabling,

especially if future use of a WiFi overlay is anticipated.

Parameter

Details and requirements

Accommodation building

consolidation cabinet

Accommodation unit consolidation

cabinet

Minimum internal

dimension (h × w × d)

12U, 600 mm × 300 mm

12U, 450 mm × 150 mm

Mounting location

Concealed in the wall with the front of the cabinet flush with the wall.

Mounting restrictions

Located in an accessible area inside the tenant premises close to the entrance

and not inside the kitchen, pantry, washroom, laundry room or bedroom.
Not close to sources of water or heat.
Not close to any electrical distribution or busbars.

Mounting height

Installed with the bottom of the cabinet at a height of 600 mm to 1,200 mm

above FFL, according to site conditions.

Equipment clearance

An adequate safe working space around the location.

Area lighting

Minimum of 500 lux maintained at 1,000 mm above FFL.

Ventilation

Adequate ventilation shall be provided; minimum of one air change per hour.

Copper cabling patch

panel

One or more 24-port 600 mm

copper patch panel as required.

24-port 450 mm copper patch panel.

Twisted pair copper

cabling (maximum

90m cable length)

Cables as required per block area.

Up to 24 cables per unit.

Cable management

Cable entries to accommodate the incoming fibre optic and copper cables.
Horizontal cable management for twisted pair patch cables.

Optical fibre

termination

Fibre terminal box with adapters and pigtails for two LC/APC ports and two

SC/APC ports for a 4-core SM fibre drop cable termination.

Security

Lockable front door.

Power

13 A dual socket inside the consolidation cabinet with dedicated circuit

breaker on the domestic supply and not looped with other general power

sockets.

Labelling

Accommodation building number.

Accommodation unit number.

Table G.40

Minimum specifications for consolidation cabinet

Dubai Building Code

Part G: Incoming utilities

G 130

Key

01: Manhole (600 × 600 × 900) mm with grade

(A) cover positioned close to the building wall

02: Mini ODF Splice cabinet

03: Consolidation cabinet
04: Category 6 cable from each TO (RJ45) to

consolidation cabinet

G.11.4.6.2 Scenario 1: Low-density occupation/single occupier tenant

organizations

In this scenario, the design shall allow individual buildings to be wired with copper

cabling to the fixed TO positions for each accommodation unit’s communal area

televisions and telephones (see Figure G.73).

Designers shall provide the minimum number of cabinets required. Cabinets shall be

located in a central position. Cabling can serve multiple building levels, maximizing

the area covered by each unit, provided that cable lengths are within the 90 m

permanent link limitation. One or two cabinets might be able to serve single or

double storey accommodation blocks of up to 150 m building length.

Key

01: Manhole (600 × 600 × 900) mm with grade (A) cover positioned close to the building wall

02: Category 6 cable from each TO (RJ45) to consolidation cabinet
03: Consolidation cabinet
04: Bathrooms

05: Kitchen/communal area

06: Bedroom

G.11.4.6.3 Scenario 2: High density occupation/multiple occupier tenant

organizations

Where a more flexible service provision is required, the design shall feature optical

fibre drop cabling directly from an FTR, MTR or MMR to a consolidation cabinet

in each accommodation unit (see Figure G.74). Local copper cabling shall provide

connections for services from the consolidation cabinet.
Each unit connection shall comprise one 4-core SM drop cable per cabinet.
The designer may future-proof the accommodation by providing copper cabling to

allow future deployment of a WiFi overlay service.

Figure G.73 Ground floor plan of copper cabling to each accommodation unit

Figure G.74 Ground floor plan of fibre drop cable to each accommodation unit

05: 4 core drop fibre from mini ODF splice

cabinet to consolidation cabinet in each room
06: Bathrooms

07: Kitchen/communal area

08: Bedroom

Dubai Building Code

Part G: Incoming utilities

G 131

G.11.4.7 Business consolidation cabinet –

Commercial shell and core

The Developer shall provide one mini ODF in each FTR

(see Table G.41 and Figure G.75).
Each FTR ODF shall have SM fibre cable connection

to the MTR. This shall comprise multicore fibre

cables with a minimum core count, to allow through-

connection of four cores of fibre per 200 m

of leasable

space to support a two-SP design.

Multicore fibre cables shall be spliced on the dedicated

splice trays in the ODF.

4-core SM drop cables shall be pulled for every 200 m

of leasable floor space or to each tenant consolidation

cabinet.

Drop cables shall be routed to the FTR mini ODF on

the same building level.
Drop cables shall be spliced on the dedicated splice

trays in the ODF. All fibre cores shall be clearly labelled.

Tenant area distribution cables shall be coordinated

directly between the building Owner and the tenant.

Parameter

Details and requirements

Minimum internal

dimension

600 mm × 600 mm × 300 mm (h × w × d)

Mounting location

Side wall of FTR.

Mounting height

1,500 mm above FFL.

Fittings

Fully loaded with pre-terminated SC/APC

pigtail and SC/APC adaptors for SPs.

Dedicated splice tray for multicore fibre

cables.
Dedicated splice trays for drop cables.

Fibre connectivity Multicore SM fibre cable capacity from MTR

to each FTR ODF. Minimum cable core count

calculated for each floor, based on four fibre

cores for every 200 m

of leasable space

+25% to support a two-SP design.

Multicore cables spliced on dedicated

multicore splice trays in the FTR ODF.
4-core SM drop cable from the FTR ODF

for every tenant consolidation cabinet per

200 m

of leasable floor space on the

same level.
Drop cables spliced on dedicated drop cable

splice trays in the FTR ODF.

Security

Lockable panels all round.
Lockable front door.

Cable entries

To accommodate the multicore SM fibre

cables and drop fibre cables.
To accommodate the incoming fibre optic

cables.

Labelling

Floor number.

Table G.41

Minimum specifications for consolidation cabinet

Figure G.75 Business consolidation cabinet, mini ODF provided

in each FTR

Key

01: Cable entry for multicore fibre

cables from MTR

02: Opening for drop fibre cables from

tenants

03: Door

04: Cable entry for multicore fibre

cables from MTR

05: AC/APC pigtails

06: Opening for drop fibre cables from

tenants

Splice tray for splicing

drop fibre cables

Splice tray for splicing

multicore fibre cables

Adapter holder

Dubai Building Code

Part G: Incoming utilities

G 132

G.11.4.8 Cable pathways

G.11.4.8.1 General

Cable pathway specifications shall conform to Table

G.42.
The following requirements shall be met for risers and

all cable trays, conduits, ducts and microduct pathway

systems.
a) Pathways shall be designed such that installed

cables do not exceed the minimum specified bend

radius during or after installation.

Day one installation shall not exceed 50% of the

cable tray capacity.

c) All cable trays shall be made from hot dip

galvanized slotted steel and shall be of HDRF

construction.

d) All metal parts shall be free from sharp edges and

shall be earth bonded in accordance with ISO/IEC

30129.

e) Riser openings, slab penetrations and wall

penetrations for pathways passing through fire-

rated construction shall be sealed with approved

fire-stopping material in accordance with Section

3, Ch.1 of UAE FLSC

[Ref. G.1]

. Fire-stopping shall

be reinstated whenever cables are installed after

completion of initial fire-stopping works.

f) Vertical pathways shall be continuous between

all levels. There shall be no reduction of capacity

through penetrations.

g) Pathways shall not run through areas exposed to:

1) excessive heat (i.e. areas in direct sun or rooms

with heat generating equipment);

2) moisture;
3) corrosive atmospheric or environmental

conditions;

4) high voltages;
5)

radio frequency interference (RFI); or

6) electromagnetic interference (EMI).

h) The separation of telecom and electrical pathways

shall conform to ISO 14763-2.

i) Cable trays shall be easily accessible in common

areas to facilitate any future provision of additional

cables.

j) Cable trays in publicly accessible areas and

less than 4.8 m above the floor level shall have

removable protective covers.

k) All conduit junctions/pull boxes shall have minimum

internal dimensions of 300 mm × 300 mm × 150

mm (w × h × d).

l) The Developer shall select telecom riser locations

to provide a continuous route through the

building, and taking into account the location

and distribution of other services. On some

developments, multiple risers might be required to

provide service resilience.

m) Risers and cable pathways allocated for SP use

shall not be shared with landlord or tenant cabling

systems. In specific developments where space

optimization might be advantageous, the Developer

shall agree riser sharing principles for FTTx cabling

and bespoke landlord/tenant cabling.

n) Minimum in-building service (IBS) pathways

shall be adapted to accommodate specific design

requirements of MNOs per development.

Dubai Building Code

Part G: Incoming utilities

G 133

Parameter

Multi-tenant building

Warehouse and labour

accommodation

Groups of towers

Risers

Two dedicated telecom

risers.
Riser one shall be in or

adjacent to the FTR.

One dedicated telecom

riser.

Two dedicated telecom

risers.
Riser one shall be in or

adjacent to the FTR.

Slab opening

To allow vertical

routing of IBS and

telecom trays.

To allow vertical

routing of telecom

conduits.

To allow vertical

routing of IBS and

telecom trays.

Vertical pathway – riser One 450 mm × 50 mm

cable tray (telecom)

One 300 mm × 50 mm

cable tray (IBS)

Two 50 mm conduits

(copper), junction/

pull box per floor per

conduit.

One 450 mm × 50 mm

cable tray (telecom)

One 300 mm × 50 mm

cable tray (IBS)

Horizontal pathway –

riser 2 to FTR

One 100 mm × 50 mm

cable tray (telecom)

One 100 mm × 50 mm

cable tray (IBS)

Not applicable.

One 100 mm × 50 mm

cable tray (telecom).

One 100 mm × 50 mm

cable tray (IBS)

Horizontal pathway –

FTR to:

a) common corridors
b) elevator lobbies
c) podium levels
d) basement levels

150 mm × 50 mm cable

tray (IBS)

Not applicable.

150 mm × 50 mm cable

tray (IBS)

Horizontal pathway

–FTR to consolidation

cabinet

200 mm × 50 mm corridor cable tray from FTR, small tray or conduit from

corridor tray to consolidation cabinet.

Horizontal pathway –

FTR to consolidation

cabinet (low-density

buildings or permanent

consolidation cabinet

position)

200 mm × 50 mm corridor cable tray from FTR, small tray or conduit from

corridor tray to consolidation cabinet.
or
Dedicated 50 mm conduit, one per route.

Table G.42

Cable pathway specifications

Parameter

Multi-tenant building

Warehouse and labour

accommodation

Groups of towers

Horizontal pathway

–consolidation cabinet

to telecom outlets

Not applicable.

One 25 mm conduit

per dual copper outlet

from cabinet.
Increase conduit size

if multiple dual outlets

fed on the same route.
Junction/pull boxes at

sharp/90° bends or

routes over 30 m.

Not applicable.

Horizontal pathway

– MTR links

(development with

podium link level)

Not applicable.

300 mm × 100 mm

tray linking MTRs of

each tower

Horizontal pathway

– MTR links

(development without

podium link level)

Not applicable.

OSP duct system,

2 × D54 (100 mm)

ring of ducts between

buildings, two entry

points per building to

OSP.

Dubai Building Code

Part G: Incoming utilities

G 134

G.11.4.8.2 Microduct

Horizontal microduct shall only be used when:

a) the consolidation cabinet locations are permanent;
b) the cable density is low;
c)

the flexibility to modify routing is not required; and

d) the ducts in Table G.43 can be installed from the

FTR to each tenant.

Parameter

Multi-tenant building

Warehouse

MTR to each

FTR

One-way 12/8 mm

microduct per required

multicore cable

+ 30% spare empty

microduct tubes

Not applicable.

MTR to each

MSR

One-way 12/8 mm

microduct per required

multicore cable

+ 30% spare empty

microduct tubes

Not applicable.

MTR to

RTMR

One-way 12/8 mm

microduct per required

multicore cable

+ 30% spare empty

microduct tubes

Not applicable.

FTR ODF to

consolidation

cabinet

Two-way 8/5 mm

microduct (one tube

for drop cable, one

tube spare)

Two-way 8/5 mm

microduct (one tube

for drop cable, one

tube spare)

Table G.43

Microduct specifications

G.11.4.9 Fibre termination components and

GPON splitters

G.11.4.9.1

Approved optical fibre components

All optical fibre components shall be selected from the

approved product list held by SPs.

G.11.4.9.2 GPON splitter calculation per building

The number of GPON splitters required for each SP

per building shall be calculated using Eq. G.1.

G.11.4.9.3 GPON optical splitter requirements

Optical splitters shall:
a) be planar light wave circuit type;
b)

have RoHS-compliant metal plating and plastic;

c) have the operating wavelength range 1,260 nm to

1,635 nm;

have the operating temperature range –24 °C to

+85 °C; and

e) have dust covers on the uplink and downlink

connectors.

In addition, optical splitters shall meet the following

requirements.
1)

(2 in × 32 out) optical splitters shall have the

maximum insertion loss + connector loss

(at operating wavelength from 1,260 nm to

1,635 nm) to ≤18 dB (for residential tenants).

(2 in × 8 out) optical splitters shall have the

maximum insertion loss + connector loss

(at operating wavelength from 1,260 nm to

1,635 nm) to ≤11 dB (for business tenants).

Eq. G.1
GPON splitters required for each SP per building

= number of tenants ÷ 30

where:

30 is the downlink ports of (2 in × 32 out) splitters.
Two downlink ports of (2 in × 32 out) splitters shall be

provided as spare ports for operational maintenance.
The number of GPON business splitters required for

each SP per building shall be calculated using Eq. G.2.

Eq. G.2
GPON business splitters required for each SP

per building =

(Number of business tenants x 1.1) ÷ 8

Dubai Building Code

Part G: Incoming utilities

G 135

G.11.4.9.4 High density connectorized modular

splitter specification

High density (2 in × 32 out and 2 in × 8 out)

connectorized modular splitters shall be used for

buildings of more than 100 units. They shall meet the

following requirements.
a)

The modular splitters shall be fitted inside the

splitter chassis (sub-rack).

b) Each splitter chassis (sub-rack) shall be 483 mm

(19 in) with in-built cable management facility to

route the uplink and downlink fibre patch cords.

c) Each splitter chassis (sub-rack) shall have eight

(2 in × 32 out) modular splitters with LC/APC

connector type.

d) Each splitter chassis (sub-rack) shall have four (2 in

× 32 out) modular splitters with SC/APC connector

type.

e) Each splitter chassis (sub-rack) shall have 12 (2 in

× 8 out) modular splitters with operator specific

connector type.

f) Each splitter chassis (sub-rack) shall be 3U to 4U

in height.

g) Each modular splitter shall have visible label holder

for unique identification.

h) The modular splitters shall have an easy snap-in

design which requires no tools.

For du, uplink and downlink ports of (2 in × 32 out

and 2 in × 8 out) modular splitters shall have LC/

APC connectors.

For Etisalat:

for buildings up to 256 units, (2 in × 32 out)

and (2 in × 8 out) patch-free splitters with

splicing trays shall be provided;

2) for buildings of 256 or more units, uplink and

downlink ports of (2 in × 32 out and 2 in ×

8 out) modular splitters shall have SC/APC

connectors.

G.11.4.9.5 Low-density connectorized splitter

specification

Low-density (2 in × 32 out and 2 in × 8 out)

connectorized splitters shall be used for a building

with less than 100 units. They shall meet the following

requirements.
a)

Low-density splitters shall be 483 mm (19 in), 1U,

rack mountable.

Low-density splitters shall have an in-built cable

management facility to route the uplink and

downlink fibre patch cords.

Uplink and downlink ports of (2 in × 32 out) and

(2 in × 8 out) splitters shall have LC/APC

connectors for du.

For buildings with less than 256 units,

(2 in × 32 out) and (2 in × 8 out) optical patch-free

splitters with splicing trays shall be provided for

Etisalat.

e) Each splitter shall have two uplink ports (two

inputs). The uplink ports of splitters with uplink

patch panels shall be connected in the following

order:
1)

the first uplink port of the splitter shall be

connected to the main uplink patch panel;

2) the second uplink port of the splitter shall be

connected to the redundant uplink patch panel.

G.11.4.9.6

Multicore fibre cable termination

Fibre termination components shall be provided

to splice multicore SM fibre cables with 4-core SM

drop cables. Termination components shall meet the

following requirements.
a)

4-port fibre terminal box (with LC/APC and SC/

APC pigtails and adaptors) inside the 12U cabinet

of tenant premises (office/retail/warehouse).

fully loaded high- or low-density fibre patch panels

with adaptors and pigtails inside the MTR for SPs.

FTR mini ODFs with splice trays to splice multicore

fibre cables with respective 4-core drop cables.

Dubai Building Code

Part G: Incoming utilities

G 136

G.11.4.10 Fibre and copper cables

G.11.4.10.1 General

All cables (and connecting accessories) shall be

selected from the approved product list held by SPs.

All fixed and permanently installed telecom cables

within a building shall be halogen-free, achieve a

minimum rating of Euroclass C

-s1b,d2,a2 when tested

in accordance with BS EN 13501-6 and be CE marked.

NOTE: CE marking represents a manufacturer's

declaration that products conform to the applicable

manufacturing and testing standard.

All other cables, microduct and conduit including patch

cords shall meet the minimum requirements of IEC/EN

60332-1-2.

Unless for a specific development type, fibre optic

cables shall be supplied, spliced, labelled and tested

inside the MTR, FTR, and consolidation cabinets by the

Developer. This shall include the supply and installation

of fibre optic cables and their related accessories.
The fibre optic design shall be based on building type,

number of tenant units and structure.

All fibre cables shall be continuous lengths free from

joints and splices.

A minimum of 25% spare fibre cores shall be included

in the design while calculating multicore fibre core

capacity, to allow for maintenance and additional

service demands.

All optical fibre testing shall be completed in

accordance with ISO/IEC-14763-3.

The optical fibre cable required shall have the following

common general specifications of:

a)  SM;
b)  indoor grade;
c)  cable jacket and microducts to be halogen-free and

flame-retardant material (LSZH type);

d) air blown micro-cable in accordance with ITU-T

G.657 A1/A2;

fibre optic colour coding in accordance with ISO

11801-1;

f) microducts for air blown micro-cables installation;

and

g) bend-insensitive.

Drop fibre cable shall be:

flexible drop fibre; and

4-core cable, flat cross-section.

Multicore fibre cable shall:

be flexi-tube (gel free) micro-cable/micro-bundle

cable of 24 fibre cores and above; and

ii)

have a tight buffer structure up to 12 fibre cores.

G.11.4.10.2 Villa complexes and warehouses

For villa complexes and warehouse developments, the

SP shall provide the fibre optic cables.

The Developer shall supply the consolidation cabinet

and a 4-core fibre termination box installed inside the

consolidation cabinet.

G.11.4.10.3 MTR to consolidation cabinet (direct

fibre)

Direct fibre installation may be applied in mixed use

developments of low-rise buildings, accommodation

blocks and/or villa complexes having a common MTR.

The fibre optic cables shall be provided from the MTR

to each consolidation cabinet. The fibres shall pass

through the FTR and shall be continuous lengths, free

from joints, branches or patching.

G.11.4.10.4

MTR to FTR mini ODF (multicore fibre)

Multicore fibre installation may be installed in high-

rise buildings, malls or other large buildings, based on

building type, quantity of tenant units and structure.

The number of fibre cores required per floor FTR is

calculated as shown in Table G.44. The multicore fibre

cable shall be provided from the MTR to the mini ODF

inside the FTR.

Dubai Building Code

Part G: Incoming utilities

G 137

Number of tenants per

building

Number of fibre cores

per building (two core

fibre each for two SPs)

MTR optical patch

panels

Rack/ODF size

0 to 150

(Total number of

tenants × 4-core)
+25%

Total fibre cores per

building/24 = No. of

24-port patch panels

Free standing rack
42U 800 mm × 800

mm (w × d)

151 to 300

Total fibre cores per

building/144 = No. of

144-port patch panels

Floor-mounted ODF
47U 900 mm × 450

mm (w × d)

301 to 600

Floor-mounted ODF
47U 900 mm × 450

mm (w × d)

Table G.44

Fibre provision relative to tenant numbers

Locations of mini ODFs in a high-rise buildings shall start from the first floor and

then cover a maximum of three floors. For example, a mini ODF installed at the first

floor shall cover the first, second and third floors, the next mini ODF location shall be

on the fourth floor serving the fourth, fifth and sixth floors, the next mini ODF shall

be on the seventh floor, etc.
Multicore fibre cables shall be directly spliced to 4-core fibre cables using the mini

ODF cabinet inside the FTRs.
Multicore fibres shall be terminated directly into optical patch panels in the MTR.

These patch panels shall be used to patch to each SP’s splitter.

All fibre optic cables shall be supplied, spliced, labelled and tested inside the MTR and

FTRs. Detailed fibre cores shall be allocated in accordance with Table G.45.
For buildings with less than 256 units, patch-free splitters shall be used for Etisalat.
Feeder cables shall be directly spliced with the splitter inputs and fixed in the splicing

trays.

Splitter outputs shall be spliced with the fibre pigtail cords and terminated in the

optical distribution patch panels.

Dubai Building Code

Part G: Incoming utilities

G 138

Table G.45

Building fibre termination core assignments by using 483 mm (19 in) 1U – 24-port SC/APC optical patch panel

Apartment/office/retail

Horizontal distribution

Vertical distribution

Building MTR

Tenant No.

4-port fibre terminal box

with 2 LC/APC and 2 SC/

APC

4-core indoor SM Drop

fibre cables

Wall mount splice

cabinet with 24

fibre splice tray

capacity

24-core indoor SM multicore

fibre cable - micro module/

flexi- tube

24port SC/APC

optical patch

panel

Etisalat – 2 × 32 SC/APC

GPON splitter

du – 2 × 32 LC/APC GPON

splitter

Tenant 1

Port-1 - SC/APC - Etisalat

Blue - core - 1

Splice tray - 1

Blue - core - 1

SC/APC-Port-1

ETC, splitter downlink port-1

Port-2 - SC/APC - Etisalat

Orange - core - 2

Splice tray - 1

Orange - core - 2

SC/APC-Port-2

Port-3 - LC/APC - du

Green - core - 3

Splice tray - 1

Green - core - 3

SC/APC-Port-3

du, splitter downlink port-1

Port-4 - LC/APC - du

Brown - core - 4

Splice tray - 1

Brown - core - 4

SC/APC-Port-4

Tenant 2

Port-1 - SC/APC - Etisalat

Blue - core - 1

Splice tray - 1

Slate - core - 5

SC/APC-Port-5

ETC, splitter downlink port-2

Port-2 - SC/APC - Etisalat

Orange - core - 2

Splice tray - 1

White - core - 6

SC/APC-Port-6

Port-3 - LC/APC - du

Green - core - 3

Splice tray - 1

Red - core - 7

SC/APC-Port-7

du, splitter downlink port-2

Port-4 - LC/APC - du

Brown - core - 4

Splice tray - 1

Black - core - 8

SC/APC-Port-8

Tenant 3

Port-1 - SC/APC - Etisalat

Blue - core - 1

Splice tray - 1

Yellow - core - 9

SC/APC-Port-9

ETC, splitter downlink port-3

Port-2 - SC/APC - Etisalat

Orange - core - 2

Splice tray - 1

Purple - core - 10

SC/APC-Port-10

Port-3 - LC/APC - du

Green - core - 3

Splice tray - 1

Pink - core - 11

SC/APC-Port-11

du, splitter downlink port-3

Port-4 - LC/APC - du

Brown - core - 4

Splice tray - 1

Aqua - core - 12

SC/APC-Port-12

Tenant 4

Port-1 - SC/APC - Etisalat

Blue - core - 1

Splice tray - 1

Blue/black stripe - core - 13

SC/APC-Port-13 ETC, splitter downlink port-4

Port-2 - SC/APC - Etisalat

Orange - core - 2

Splice tray - 1

Orange/black stripe - core - 14 SC/APC-Port-14

Port-3 - LC/APC - du

Green - core - 3

Splice tray - 1

Green/black stripe - core - 15

SC/APC-Port-15

du, splitter downlink port-4

Port-4 - LC/APC - du

Brown - core - 4

Splice tray - 1

Brown/black stripe - core - 16

SC/APC-Port-16

Tenant 5

Port-1 - SC/APC - Etisalat

Blue - core - 1

Splice tray - 1

Slate/black stripe - core - 17

SC/APC-Port-17 ETC, splitter downlink port-5

Port-2 - SC/APC - Etisalat

Orange - core - 2

Splice tray - 1

White/black stripe - core - 18

SC/APC-Port-18

Port-3 - LC/APC - du

Green - core - 3

Splice tray - 1

Red/black stripe - core - 19

SC/APC-Port-19

du, splitter downlink port-5

Port-4 - LC/APC - du

Brown - core - 4

Splice tray - 1

Black - core 20

SC/APC-Port-20

Tenant 6

Port-1 - SC/APC - Etisalat

Blue - core - 1

Splice tray - 1

Yellow/black stripe - core - 21

SC/APC-Port-21 ETC, splitter downlink port-6

Port-2 - SC/APC - Etisalat

Orange - core - 2

Splice tray - 1

Purple/black stripe - core - 22

SC/APC-Port-22

Port-3 - LC/APC - du

Green - core - 3

Splice tray - 1

Pink/black stripe - core - 23

SC/APC-Port-23

du, splitter downlink port-6

Port-4 - LC/APC - du

Brown - core - 4

Splice tray - 1

Aqua/black stripe - core - 24

SC/APC-Port-24

Dubai Building Code

Part G: Incoming utilities

G 139

G.11.4.10.5 FTR mini ODF to consolidation cabinet

4-core fibre cables shall be provided from each

consolidation cabinet to its respective mini ODF inside

the FTR (see Table G.46).
Each fibre cable shall be directly spliced to multicore

fibre cables within the FTR mini ODF.

Fibre core

Port number

Assign to

1 - Blue

1-SC/APC

SP1 GPON

2 – Orange

2-SC/APC

SP1 spare

3 - Green

3-LC/APC

SP2 GPON

4 - Brown

4-LC/APC

SP2 spare

Table G.46

4-core fibre cables core assignments, two connected SPs

G.11.4.10.6 MTR to each MSR and the RTMR

To enable IBS connectivity within each building, the

Developer shall provide a pre-terminated cross-

connect cabinet installed at each MSR and in the

rooftop room. The cross connect cabinet position,

mounting arrangement and cabinet elevation shall

conform to Figure G.76 and Figure G.77. The cabinet

shall:
a)

have a minimum size of 600 mm (w) × 150 mm (d);

and

b) accommodate 24 SC/APC pigtails and adaptors.

In addition, the following requirements shall be met.
1)

24-core fibre cables shall be installed from the MTR to each MSR and to the RTMR.

24-core fibre cables shall be terminated inside the MTR rack using 483 mm (19 in), 24-port SC/APC fibre

patch panel.

24-core fibre cables shall be terminated inside the cross-connect cabinets in the MSR and rooftop rooms:

i) cores 1 to 12 shall be allocated to connect Etisalat IBS equipment;
ii) cores 13 to 24 shall be allocated to connect du IBS equipment.

Figure G.76

Cross-connect cabinet mounting detail (inside RTMR)

Key

01: Top cable entry for fibre cables

02: Top entry for fibre patch cords

03: PVC trunking to route fibre patch cords

04: Cable tray

05: Bottom cable entry for fibre cables

06: Bottom entry for fibre patch cords

07: Finish floor level (FFL)

08: Cross connect cabinet

Dubai Building Code

Part G: Incoming utilities

G 140

Figure G.77 Cross-connect cabinet – elevation layout

Key

01: Cable entry for 24-core fibre cables

from MTR

02: Opening for fibre patch cords

03: Velcro

04: Tube holder

05: Door

06: Cable holder

07: SC/APC pigtails and adapters

12 slot splice tray –for Etisalat

(cores 1 to 12 of MTR cable)

12 slot splice tray –for du (cores

13 to 24 of MTR cable)

Adaptors and pigtails

Ring to manage fibre patch

cords, fibre pigtails and buffer

tubes

G.11.4.10.7 Category 6 copper cabling

To deliver services from the consolidation cabinets

to building outlets, twisted pair copper cables shall

be provided. The full design is the responsibility

of the Developer; however, the following minimum

requirements shall be met for the efficient and

effective provision of services.
a) The cables shall conform as a minimum to the

requirements for category 6 cabling as specified in

ISO 11801-1.

b) The wiring shall be a star topology from the

consolidation cabinet.

c) Dual RJ45 TOs with spring loaded sliding shutters

shall be provided wherever service is required.

d) Design shall include additional spare TOs to provide

service flexibility for tenants.

e) Each socket in the dual RJ45 outlet shall be wired

back to the consolidation cabinet with an individual

cable.

f)  TOs shall not be cascaded or looped.
g)  Cable pairs shall not be split between outlets.
h)  The permanent link cable length from consolidation

cabinet to TO shall not exceed 90 m.

i) Cable lengths shall be de-rated where required

due to local temperature conditions and cable

specifications to enable end-to-end error-free

channel performance up to 1 Gbps for category 6

and 10 Gbps for category 6 A.

Dubai Building Code

Part G: Incoming utilities

G 141

j) At the consolidation cabinet, copper cables shall

be terminated on an RJ45 patch panel and labelled

with the socket and outlet served. Terminations

shall be to the TIA 568B pair scheme.

k) In each TO, each cable shall be terminated such

as to maintain the twists in each pair up to the

termination. The termination shall be in accordance

with the selected manufacturer’s installation

instructions.

l) Strain relief shall be provided at the terminated

ends of each cable.

m) The components of the system shall all be of the

same category (6 or 6 A) and type (UTP or STP),

and from a single manufacturer, to ensure optimum

performance and compatibility.

n) The results from copper cable tests shall be

recorded and retained for future reference.

G.11.4.11 Bulk service

The Developer is responsible for designing and

implementing bulk service infrastructure to support

landlord building facility management and security

applications, and in specific circumstances tenant

business requirements.

NOTE: This kind of service solution is usually applied to

projects/buildings having their own IT network (single-

tenant) such as hotels, hospitals, schools, universities,

banks, airports and other similar establishments.

The client shall have an IT server room and a minimum

of one dedicated MTR (Figure G.78) for SP telecom/

network equipment installation.
The tenant/client shall provide written requirements

during the design stage, confirming the bulk service

and explaining the service required to be provided up

to the client IT room.
The exact requirements related to telecom cabling

and EM requirements shall be determined during the

design stage based on the client’s service requirements.

For bulk services setup the tenant/client shall:

a) install 483 mm (19 in) 42U free standing rack

within the MTR;

install and test 12 core fibre cable between MTR

and client IT server room, terminating the fibre

cables at both ends using 12-port fibre patch

panels:

1) cores one to six shall be allocated to connect

Etisalat equipment;

2) cores seven to 12 shall be allocated to connect

du equipment;

c) install and test 24 category 6 A copper cables

between the MTR and client IT server room:
1) ports one to 12 shall be allocated to connect

Etisalat equipment;

2) ports 13 to 24 shall be allocated to connect du

equipment;

d) install main and spare optical splitter(s) and patch

panels;

install two 12-port SC/APC pre-terminated fibre

patch panels to each SP uplink fibre;

provide SC/APC adaptors and pigtail for fibre

interfaces;

extend 300 mm × 50 mm HDRF cable tray from

MTR to client IT server room.

The distance between the MTR and client IT server

room shall be within 70 m (to remain within the 90 m

permanent link distance limitation, while provisioning

fixed services over copper cables).

Dubai Building Code

Part G: Incoming utilities

G 142

Figure G.78

Bulk service MTR arrangement

Figure G.79 Example EID and GAID identification plate with labelling details

Key

01: 300 mm × 50 mm cable tray

02: 10 U space reserved for OSP link (MMR to building

MTR) and ISP link (building MTR to client server room)

03: 16 U space reserved for active equipment – du

04: Clients server rack

05: 16 U space reserved for active equipment – ETC

06: Raised floor tiles (optional)

07: MTR room

08: Client server room

G.11.4.12 Labelling scheme

G.11.4.12.1 General

The installed system shall be administered in accordance with ISO/IEC 14763-1.

All sections of the installation shall be provided with suitable identification labels to

clearly indicate the location and purpose of each item or cable.

Instructions and “Optical Fibre Caution” notices shall also be provided. All labels shall

be in both English and Arabic. The letter sizes shall be selected to suit individual

applications.

G.11.4.12.2

SP GAID and EID identification plate for each unit/tenant

The SP identification plate (see Figure G.79) shall be installed at the door entrance of

the residential/commercial units. The identification plate shall be made of plastic or

light metal with the alphanumeric characters (GAID or EID) engraved on it.
The GAID and EID reference number details shall be made available to the Developer

during the inspection stage.

Dubai Building Code

Part G: Incoming utilities

G 143

G.11.4.12.3 Component and location labelling

When labelling telecom cabling and equipment,

common suffixes and designations shall be used in

label text as detailed in Table G.47 to Table G.49.

Location

Labelling designation

Apartment

ACP

BMS Room

BMS

Equipment rack

RCK

Floor

Floor telecom room

FTR

Main telecom room

MTR

Offices

OCP

Reception

REP

Retail shop

RCP

Label type

Format

Example

Labelling of cabinet

inside apartment,

office, reception or

retail shop

Floor number/

name – Location +

Number

FL01-ACP12

Labelling of

fibre cable after

terminating inside

fibre ODF or patch

panel

Floor number/

name – Location

+ Number – ODF

core number

FL01-ACP12-ODF

C1, C2, C3, C4

Labelling for 4-core

fibre terminal box

(always terminate

pigtail one to core

one of the SM fibre

cable)

Rack number-ODF

number-ODF row/

slot number-core

numbers

RK2-ODF1-S1-C1,

C2, C3, C4

MTR/FTR side
Floor (Fxx) – Location +

number – core number (Cxx)

Tenant side
MTR/FTR number – core

number

Example for floor 01

apartment 04

FL01-ACP04-C01

FL01-ACP04-C02

FL01-ACP04-C03

FL01-ACP04-C04

MTR01-C01
MTR01-C02
MTR01-C03
MTR01-C04

FTR01-C01
FTR01-C02
FTR01-C03
FTR01-C04

Example for floor 01 office 10
FL01-OCP10-C01

FL01-OCP10-C02

FL01-OCP10-C03

FL01-OCP10-C04
Example for ground floor

reception

FL00-REP-C01

FL00-REP-C02

FL00-REP-C03

FL00-REP-C04
Example for ground floor retail

unit 25

FL00-RCP25-C01

FL00-RCP25-C02

FL00-RCP25-C03

FL00-RCP25-C04

Table G.47

Labelling designations

Table G.48

Labelling scheme for SM fibre cables MTR/FTR to tenant

unit

Table G.49

Labelling scheme for equipment

The labelling scheme for 2-core adapters inside the

fibre terminal box shall follow Figure G.80 depending

upon the orientation of the adaptor.

Figure G.80 Labelling scheme for 2-core adapter inside the fibre

terminal box

(a) Vertical orientation

(b) Horizontal orientation

Dubai Building Code (2021) - page 19