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HUAWEI OptiX OSN 8800 T64/T32 Intelligent Optical Transport Platform. Product Description - part 4

4.1 System Architecture

The OptiX OSN 8800 system uses the L0 + L1 + L2 architecture. Ethernet switching is

implemented on Layer 2, ODUk/VC switching on Layer 1, and wavelength switching on Layer

0.

Figure 4-1 and Figure 4-2 show the system architecture of the OptiX OSN 8800 used as an

OTN and an OCS system, respectively.

Figure 4-1 System architecture of the OptiX OSN 8800 (OTN)

To line fiber

L0

Optical-layer board

WDM-side optical module

Client-side optical module

Cross-

Cross-

connect

connect

board

board

Signal processing module

(active)

(standy)

Signal processing module

L1

ODUk

ODUk

L1

Line board

Tributary board

WDM-side optical module

Clock board (active)

Clock board (standby)

Signal processing module

Power (active)

L2

L2 switching module

-48 V/-60 V DC

Power (standby)

Client-side optical module

Fans

NMS

OTU board

External alarm

Auxiliary

interface

External clock/

System control and communication

board

external time

DCN

board (active)

System control and communication

board (standby)

Backplane

Control and communication bus & Clock bus

Electrical signal

Electrical cross-connect bus(ODUk)

Optical-layer service

27

Figure 4-2 System architecture of the OptiX OSN 8800 (OCS)

To line fiber

L0

Optical-layer board

Inteface processing module

Inteface processing module

Signal processing module

Signal processing module

L1

VCx

VCx

L1

Line board

Line board

Cross-

Cross-

connect

connect

board

board

Inteface processing module

Clock board (active)

(active)

(standy)

Clock board (standby)

L2

L2 switching module

、

Signal processing module

-48 V/-60 V DC

Power (active)

VCx

EoS board

Power (standby)

Fans

NMS

External alarm

Auxiliary

interface

External clock/

board

external time

System control and communication

DCN

board (active)

System control and communication

board (standby)

Backplane

Control and communication bus & Clock bus

Optical-layer service

Electrical cross-connect bus

Electrical signal

Functions of modules are as follows:

l Optical-layer boards are classified into optical multiplexer and demultiplexer boards,

optical add/drop multiplexing (OADM) boards, optical amplifier (OA) boards, optical

supervisory channel (OSC) boards, optical spectrum analysis boards, optical variable

attenuator boards, and optical power and dispersion equalization boards. These boards are

intended to process optical-layer services, for example, to cross-connect wavelengths at

the optical layer.

l Electrical-layer boards such as OTU, tributary, and line boards are used to process

electrical-layer signals, and perform conversion between optical and electrical signals. The

OptiX OSN 8800 uses a tributary-line-separate architecture, and a centralized cross-

connect unit to flexibly groom electrical-layer signals at different granularities.

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Figure 4-3 N63B cabinet appearance

4.2.1.2 Configuration of the Integrated N63B Cabinet

Typical configuration of the N63B cabinet involves settings of the following items: the subrack

type, the number of subracks, DCM and CRPC frames, and the PDU model.

Table 4-1 lists the typical configurations of the N63B cabinet.

NOTE

There are two types of ETSI 300 mm rear-column cabinets: T63B and N63B. These two types of cabinets

differ in color and door. You can perform an expansion installation on the T63B cabinet based on the typical

configurations of the N63B cabinet.

30

Table 4-1 Typical configurations of the N63B cabinet

Typ

Number of

PDU Model

Circuit

Maximum

Power

ical

Subracks and

Breaker a

Power

Consumpti

Con

Frames

Consumpti

on for the

figu

on of

Typical

rati

Integrated

Configurati

on

Equipment

on

b

1

2 x OptiX OSN

TN16

Eight 63 A

5400 W

< 4000 W

8800 T32 + 1 x

circuit

DCM frame

breakers

2

1 x OptiX OSN

TN16

Four 63 A and

5400 W

< 4000 W

8800 T32 + 2 x

four 32 A

OptiX OSN 6800

circuit

+ 2 x DCM frame

breakers

3

1 x OptiX OSN

TN16

Eight 63 A

5000 W

< 4000 W

8800 T32 + 2 x

circuit

OptiX OSN 8800

breakers

T16 + 1 x DCM

frame

4

4 x OptiX OSN

TN16

Eight 63 A

5000 W

< 4000 W

8800 T16 + 1 x

circuit

DCM frame

breakers

5

3 x OptiX OSN

TN16

Six 63 A and

5000 W

< 4000 W

8800 T16 +1 x

two 32 A

OptiX OSN 6800

circuit

+ 2 x DCM frame

breakers

6

2 x OptiX OSN

TN16

Four 63 A and

5000 W

< 4000 W

8800 T16 + 2 x

four 32 A

OptiX OSN 6800

circuit

+ 2 x DCM frame

breakers

7

1 x OptiX OSN

TN16

Two 63 A and

5000 W

< 4000 W

8800 T16 + 3 x

six 32 A

OptiX OSN 6800

circuit

+ 2 x DCM frame

breakers

8

4 x OptiX OSN

TN11

Four 63 A

4800 W

< 4000 W

6800 + 1 x DCM

circuit

frame

breakers

9

3 x OptiX OSN

TN11

Four 63 A

4800 W

< 4000 W

6800 + 2 x CRPC

circuit

frame + 3 x DCM

breakers

frame

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Typ

Number of

PDU Model

Circuit

Maximum

Power

ical

Subracks and

Breaker a

Power

Consumpti

Con

Frames

Consumpti

on for the

figu

on of

Typical

rati

Integrated

Configurati

on

Equipment

on

b

a: This column lists the number of circuit breakers required on the PDF.

b: The maximum power consumption of the integrated equipment refers to the maximum

power consumption of the cabinet or the maximum heat dissipation capacity of the integrated

equipment. The power consumption of the integrated equipment can not exceed the maximum

power consumption.

NOTE

In the case of transmission equipment, power consumption is generally transformed into heat consumption.

Hence, heat consumption (BTU/h) and power consumption (W) can be converted to each other in the

formula: Heat consumption (BTU/h) = Power consumption (W) / 0.2931 (Wh).

Power consumption for the typical configuration refers to the average power consumption of the device in

normal scenarios. The maximum power consumption refers to the maximum power consumption of the

device under extreme conditions.

4.2.1.3 N66B Cabinet Structure

The N66B is an ETSI middle-column cabinet with 600 mm depth, complying with the ETS

300-119 standard.

The following subracks can be installed on the N66B cabinet: OptiX OSN 8800 T64, OptiX

OSN 8800 T32, OptiX OSN , and OptiX OSN 6800.

The N66B cabinet consists of the rack (main frame), open-close type front and rear doors, and

side panels at the left and right sides.

Cabinet doors and side panels can be disassembled. The front door and side panels have

grounding points. Keys to the front and rear doors of all N63B cabinets are the same.

Figure 4-4 shows the appearance of the N66B cabinet.

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Figure 4-4 N66B cabinet appearance

4.2.1.4 Configuration of the Integrated N66B Cabinet

Typical configuration of the N63B cabinet involves settings of the following items: the subrack

type, the number of subracks, DCM and CRPC frames, and the PDU model.

Table 4-2 lists the typical configurations of the N66B cabinet.

33

Table 4-2 Typical configurations of the N66B cabinet

Typic

Number of

PDU

Circuit

Maximum

Power

al

Subracks and

Mode

Breaker a

Power

Consumptio

Confi

Frames

Consumptio

n for the

gurat

n of

Typical

ion

Integrated

Configuratio

Equipment b

n

1

1 x OptiX OSN

TN16

Sixteen 63

10800 W

< 6000 W

8800 T64 + 2 x

A circuit

OptiX OSN 8800

breakers

T32 + 2 x DCM

frame

2

1 x OptiX OSN

TN16

Eight 63 A

10800 W

< 6000 W

8800 T64 + 4 x

and eight 32

OptiX OSN 6800

A circuit

+ 4 x DCM frame

breakers

3

1 x OptiX OSN

TN16

Sixteen 63

10000 W

< 6000 W

8800 T64 + 4 x

A circuit

OptiX OSN 8800

breakers

T16 + 2 x DCM

frame

a: This column lists the number of circuit breakers required on the PDF.

b: The maximum power consumption of the integrated equipment refers to the maximum

power consumption of the cabinet or the maximum heat dissipation capacity of the integrated

equipment. The power consumption of the integrated equipment do not exceed the maximum

power consumption.

NOTE

In the case of transmission equipment, power consumption is generally transformed into heat consumption.

Hence, heat consumption (BTU/h) and power consumption (W) can be converted to each other in the

formula: Heat consumption (BTU/h) = Power consumption (W) / 0.2931 (Wh).

Power consumption for the typical configuration refers to the average power consumption of the device in

normal scenarios. The maximum power consumption refers to the maximum power consumption of the

device under extreme conditions.

4.2.1.5 Cabinet Installation Mode

The ETSI 300 mm cabinet supports three installation modes: back-to-back installation, face-to-

face installation, and side-by-side installation. They can be located on cement floors or anti-

static floors. There are two ways of cabling for the cabinets: upward cabling and downward

cabling.

The ETSI 600 mm cabinet supports two installation modes: face-to-face installation, and side-

by-side installation. They can be located on cement floors or anti-static floors. There are two

ways of cabling for the cabinets: upward cabling and downward cabling.

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4.2.1.6 TN16PDU

The TN16PDU is installed in the upper part of a cabinet to supply power to subracks inside the

cabinet.

NOTE

The TN51PDU and TN16PDU have the same functions but differ in height. The TN51PDU is 133.4 mm

high. When two OptiX OSN 8800 T32 subracks are installed on a cabinet, one more DCM frame can be

configured if the TN16PDU is used, compared with the TN51PDU.

TN51PDU can be substituted by the TN16PDU.This topic describes the TN16PDU.

The TN16PDU consists of two parts: A and B, which backs up each other. Both A and B receive

four -48V/-60V power supplies and output four power supplies for subracks in the cabinet.

Whether short-circuiting copper bars are required is determined by the current of power supplied

by the power supply equipment in the telecommunications room:

l When eight 63 A power supplies are provided, no short-circuiting copper bar is required.

l When four 125 A power supplies are provided, short-circuiting copper bars are required

for dividing one 125 A power supply into two 63 A power supplies.

For more information about short-circuiting copper bars, see Short-Circuiting Copper

Bar.

Figure 4-5 shows the front panel of the TN16PDU.

Figure 4-5 Front panel of the TN16PDU

Power supply

Power supply

Power supply

Power supply

Power supply

output area

switch area

input area

switch area

output area

-

-

-

-

-+

-+

-+

-+

+1

+2

+3

+4

1

2

3

4

A

B

1

2

3

1. Output cable terminal block

2. Input cable terminal block

3. Power switch

l Panel dimensions: 535 mm (W) x 100 mm (H)

l Output cable terminal block: Both A and B of the DC PDU have four output cable terminal

blocks for connecting power cables of subracks to supply power for subracks.

l Input cable terminal block: Both A and B of the DC PDU have four input cable terminal

blocks and receive four -48V/-60V DC power supplies, eight -48V/-60V DC power supplies

in total.

l Power switch: Both A and B of the DC PDU have four output power switches to control

power supplies for subracks inside the cabinet and provide overcurrent protection for each

other.

Figure 4-6 shows the internal pin assignments of the TN16PDU.

35

Figure 4-6 TN16PDU internal pin assignments

OUTPUT A

OUTPUT B

-

-

-

-

-

-

-

-

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

+

+

+

+

+

+

+

+

ON

ON

ON

ON

ON

ON

ON

ON

INPUT A

INPUT B

OUTPUT A

OUTPUT B

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

+

+

+

+

+

+

+

+

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

-

-

-

-

-

-

-

-

INPUT A

INPUT B

Short-Circuit Copper Bar

If a power supply is 125 A, both A and B need to receive two power supplies, four power supplies

in total. In this case, short-circuit copper bars are required for both A and B. Figure 4-7 shows

the appearance of the short-circuiting copper bar.

Figure 4-7 Appearance

Copper Plate

4.2.2 OptiX OSN 8800 T64 Subrack

4.2.2.1 Structure

Subracks are the basic working units of the OptiX OSN 8800 T64. Each subrack has independent

power supply.

Figure 4-8 shows the structure of the OptiX OSN 8800 T64 subrack.

Table 4-3 describes the mechanical specifications of the 8800 T64 subrack.

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