Huawei OptiX OSN 3500. Technical Manual - part 2
Introduction
1.2.2 Highly Integration
The size of the OptiX OSN 3500 subrack is 730mm (H) × 496mm (W) × 295mm (D),
and it can be installed in 300mm-deep ETSI cabinet. A 2.2m-high and 300mm-deep
ETSI cabinet can house two OptiX OSN 3500 subracks
The OptiX OSN 3500 subrack has fifteen slots for processing board: Slot 1 ~ Slot 8
and Slot 11 ~ Slot 16. Slot 17 can also hold processing board. Besides, the OptiX
OSN 3500 has sixteen slots for interface board, one slot for auxiliary interface board,
and three fan modules. In practice, a variety of board configurations offer incremental
bandwidth increases as needed and support E1, T1, E3, DS3, E4, STM-1 (E/O),
STM-4, STM-16 and STM-64 service, transparent transmission of AU3 service, and
the 10/100/1000M Ethernet service as well.
1.2.3 Ethernet Service
The OptiX OSN 3500 integrates Ethernet access into the same SDH platform that
transports voice traffic. Ethernet over SDH lets service providers augment TDM
services with Ethernet, and allows delivery of data traffic over existing facilities. The
OptiX OSN 3500 can
Support 10M/100M/1000M Ethernet traffic.
Support encapsulate protocols such as High-level Data Link Control (HDLC),
Link Access Procedure-SDH (LAPS) and Generic Framing Procedure (GFP).
Support Layer 2 switching and the ability to classify Ethernet traffic as defined
in IEEE 802.1Q-tag standard.
Support transparent transmission and convergence of Ethernet traffic.
Support Link Capacity Adjustment Scheme (LCAS), achieving capacity
adjustment dynamic of transmission bandwidth and protection of concatenated
group..
Support Layer 2 VPN function and implements the EPL(Ethernet Private Line) ,
EVPL(Ethernet Virtual Private Line), EPLn/EPLAN(Ethernet Private LAN) and
EVPLn/EVPLAN(Ethernet Virtual Private LAN) services.
1.2.4 Interface
Abundant SDH interfaces, PDH interfaces, Ethernet interfaces, clock interfaces,
alarm interfaces and administration interfaces are provided by the OptiX OSN 3500,
as shown in Table 1-1.
1-5
Introduction
Table 1-1 Service and auxiliary interfaces provided by the OptiX OSN 3500
SDH
STM-1 electrical interface.
interface
STM-1 optical interface: I-1, S-1.1, L-1.1, L-1.2 and Ve-1.2
STM-4 optical interface: I-4, S-4.1, L-4.1, L-4.2 and Ve-4.2
STM-16 optical interface: I-16, S-16.1, L-16.1, L-16.2, L-16.2Je,
V-16.2Je, U-16.2Je and G.692-compliant color wavelength optical
interface.
STM-64 optical interface: I-64.2, S-64.2b, L-64.2b, Le-64.2, Ls-64.2,
V-64.2b and G.692-compliant color wavelength optical interface.
PDH
E1, T1, E3, DS3 and E4 electrical interface.
interface
Ethernet
10Base-T, 100Base-TX, 1000Base-SX, 1000Base-LX
interface
Clock
2048kbit/s(75Ω and 120Ω), 2048kHz(75Ω and 120Ω)
interface
Alarm
Sixteen Boolean value input interfaces.
interface
Four Boolean value output interfaces.
Concatenated cabinet alarm indicator input interface.
Four cabinet alarm indicator output interfaces.
Administr
One RS232 DCE remote maintenance interface (OAM), which can be
ation
accessed by Modem;
interface
Four serial data interfaces (Series 1 ~ 4) for transparent transmission;
One 64kbit/s codirectional data path interface (F1);
One Ethernet Network Management (NM) interface.
One administration serial interface (F&f).
Orderwire
One orderwire phone interface
interface
Two SDH Network Node Interface (NNI) voice interfaces
1-6
Introduction
1.2.5 Cross-Connect Capability
The OptiX OSN 3500 offers versions of three cross-connect boards: the General
Cross-connect & clock Board GXCS and the Enhanced Cross-connect & clock Board
EXCSA/B. Table 1-2 shows the cross-connect capacity of the OptiX OSN 3500.
Table 1-2 Cross-connect capacity of the OptiX OSN 3500
Cross-connect
Higher-order
Lower-order
Extension
and timing board
cross-connect
cross-connect
subrack capacity
capacity
capacity
GXCSA
35G
5G
0G
EXCSA
60G
5G, can expands
0G
to 20G
EXCSB
58.75G
5G, can expands
1.25G
to 20G
1.2.6 Service Access Capability
By configuring boards of different types and quantities, the OptiX OSN 3500 can
access services of different capacities. Table 1-3 lists the maximum access capacity
of the OptiX OSN 3500 for various services.
Table 1-3 Maximum access capacity of the OptiX OSN 3500 for various services
Maximum access ports of a single
Service type
subrack
STM-64 standard or concatenated
4
service
STM-16 standard or concatenated
8
service
STM-4 standard or concatenated service
46
STM-1 optical service
92
STM-1 electrical service
78
E4 service
32
E3/DS3 service
48
E1/T1 service
504
FE service
92
GE service
30
1-7
Introduction
1.2.7 Equipment Level Protection
Table 1-4 shows the equipment level protection provided by the OptiX OSN 3500.
Table 1-4 Equipment level protection provided by the OptiX OSN 3500
Items protected
Protection scheme
E1/T1 processing board
1:N (N ≤8) TPS
E3/DS3 processing board
1:N (N ≤3) TPS
E4/STM-1 processing board
1:N (N ≤3) TPS
Cross-connect and timing unit
1+1 hot backup protection
SCC unit
1+1 hot backup protection
-48V power interface board
1+1 hot backup protection
3.3V board power supply
1:N centralized hot backup protection
* The OptiX OSN 3500 supports three TPS groups of different types at the same time.
1.2.8 Networking and Protection
Being an MADM system, the OptiX OSN 3500 can provide processing capacity for up
to 40 Embedded Control Channels (ECCs), fully meeting the requirements for
complicate networking. It is applicable to various networks at
STM-1/STM-4/STM-16/STM-64 level, such as chain, ring, hub, ring with chain,
tangent rings and intersection rings. For protection at network level, the OptiX OSN
3500 supports 4-fiber/2-fiber Multiplex Section Protection (MSP) ring, linear MSP,
shared optical path virtual trail protection and Subnetwork Connection Protection
(SNCP). Table 1-5 shows the maximum number of the MSP ring supported by the
OptiX OSN 3500.
Table 1-5 Maximum number of the MSP ring supported by the OptiX OSN 3500
Protection scheme
Max. number of MSP ring supported
STM-64 4-fiber MSP ring
1
STM-64 2-fiber MSP ring
2
STM-16 4-fiber MSP ring
2
STM-16 2-fiber MSP ring
4
1.2.9 Squelching Function in Multiplex Section
Each protection time slot in multiplex section protection ring is shared by traffic from
different segments or occupied by extra traffic. With no extra traffic in the ring, and
1-8
Introduction
under the situation that a certain node is isolated because of multiple points’ failure,
traffic from different segments of the same time slot may contend for the same
protection channel time slot. This brings misconnection of traffic. With extra traffic in
the ring, and even under the situation of a single node’s failure, traffic from working
channel may contend for the time slot of protection channel carrying extra traffic. This
also brings misconnection.
To prevent misconnection, every node of the OptiX OSN 3500 has a detailed
connection table. Every node knows the source point and endpoint of each AU-4,
which can tell the potentialities of misconnection in advance with combination of APS
command. Traffic with the potentiality of misconnection is discarded through inserting
AU-AIS.
The OptiX OSN 3500 supports the function of squelching misconnected VC-4 traffic.
1-9
2 Board
2.1 Type
With the cross-connect matrix unit as core, the OptiX OSN 3500 consists of interface
unit, SDH cross-connect matrix unit, synchronous timing unit, SCC unit, overhead
processing unit and auxiliary interface unit. The system architecture of the OptiX OSN
3500 is shown in Figure 2-1, and its functions and subordinate boards of respective
units are shown in Table 2-1.
SDH interface
SDH interface
unit (STM-1/4/
unit (STM-1/4/
λ
λ
16/64)
16/64)
West
East
SDH cross-connect matrix and
synchronous timing unit (higher-order/
lower-order: 35G/5G and 60G/5G)
PDH
Ethernet
Auxiliary
SCC unit
and
interface
interface
interface
overhead
unit (E1/
unti (10/
unit
processing
T1/E3/
100/
unit
T3/E4)
1000M)
Figure 2-1 System architecture of OptiX OSN 3500
2-1
Board
To meet requirements for different service capacities, the OptiX OSN 3500 supports
two types of cross-connect board: GXCS (higher-order cross-connect capacity: 35G
and lower-order cross-connect capacity:5G) and EXCS (higher-order cross-connect
capacity: 60G and lower-order cross-connect capacity:5G).
Table 2-1 Functions and subordinate boards of respective system units
Unit
Subordinate board
Function
SDH processing
SL64, SL16, SLQ4, SLD4,
Access and process
board
SL4, SLQ1, SL1, SEP1
STM-1/STM-4/STM-16/STM-
64 optical signals and
Optical Booster
BA2, BPA
STM-4c/STM-16c/STM-64c
SDH
Amplifier Board
concatenated signals,
interface unit
Access and process STM-1
Dispersion
DCU
electrical signals, and
compensation board
provides the STM-1 electrical
signals with TPS.
SDH interface board
EU08, OU08, EU04
PDH processing
SPQ4, PD3, PL3, PQ1, PQM
board
Access and process E1,
MU04, D34S, C34S, D75S,
PDH
PDH interface board
E1/T1, E3/DS3 and E4 PDH
D12S, D12B
interface unit
electrical signals and
provides them with TPS.
Interface
PDH Interface
TSB8, TSB4
unit
Switching & Bridging
Board
2-Port Gigabit
Access and process
Ethernet Optical
1000Base-SX/LX GE optical
EGS2
Interface Board with
signals.
Lanswitch
Fast Ethernet
EFS0
Ethernet
interface board with
Interface
Lanswitch
Unit
Access and process
4-Port fast Ethernet
EFS4
10Base-T, 100Base-TX
interface board with
Ethernet electrical signals.
Lanswitch
FE twisted pair
ETF8
interface unit
SDH cross-connect
Implement cross connection
matrix unit
between the SDH and PDH
GXCS, EXCS
signals and provide the
Synchronous timing unit
equipment with system clock
SCC unit
Provide interface for
connecting the equipment
SCC
Overhead processing
with the NM system and
unit
process the SDH signal.
2-2
Board
Unit
Subordinate board
Function
Access power supply and
Power input unit
PIU
protect the equipment
against abnormal power.
The System provides various
System auxiliary
maintenance interfaces, such
AUX
interface board
as RS-232 and orderwire
phone interface.
Facilitate the system in heat
Fan unit
FAN
dissipation.
2-3
Board
2.2 Slots
Figure 2-2 shows slot assignment of the OptiX OSN 3500. The processing boards
and interface boards and their corresponding slots are shown in Table 2-2 and Table
2-3 respectively.
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
1
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
P
P
A
I
I
U
U
U
X
FAN
FAN
FAN
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
1
1
1
0
1
2
3
4
5
6
7
8
X
X
S
S
C
C
C
C
S
S
C
C
Fiber Routing
Figure 2-2 Slot assignment of the OptiX OSN 3500
Table 2-2 Processing boards and their corresponding slots
Slots
Slots
available(80G
available(40G
Outlet
Conne
Board
Full name
Interface type
cross-connect
cross-connect
mode
ctor
capacity)
capacity)
SL64
STM-64
SLOT7/8/11/12
SLOT8/11
From the
Support fixed
LC
optical
front panel
wavelength
interface
output and I-64.2,
board
S-64.2b, L-64.2b,
Le-64.2, Ls-64.2,
V-64.2b
2-4
Board
Slots
Slots
available(80G
available(40G
Outlet
Conne
Board
Full name
Interface type
cross-connect
cross-connect
mode
ctor
capacity)
capacity)
SL16
STM-16
SLOT5/6/7/8/11/12/
SLOT6/7/8/11/12/1
From the
Support fixed
LC
optical
13/14
3
front panel
wavelength
interface
output and I-16,
board
S-16.1, L-16.1,
L-16.2, L-16.2Je,
V-16.2Je and
U-16.2Je
SLQ4
4 × STM-4
SLOT5/6/7/8/11/12/
SLOT6/7/8/11/12/1
From the
I-4, S-4.1, L-4.1,
LC
optical
13/14
3
front panel
L-4.2 and Le-4.2
interface
board
SLD4
2 × STM-4
SLOT1/2/3/4/5/6/7/
SLOT6/7/8/11/12/1
From the
I-4, S-4.1, L-4.1,
LC
Optical
8/11/12/13/14/15/1
3
front panel
L-4.2 and Le-4.2
Interface
6/17
Board
SL4
STM-4
SLOT1/2/3/4/5/6/7/
SLOT1/2/3/4/5/6/7/
From the
I-4, S-4.1, L-4.1,
LC
optical
8/11/12/13/14/15/1
8/11/12/13/14/15/1
front panel
L-4.2 and Le-4.2
interface
6/17
6
board
SLQ1
4 × STM-1
SLOT1/2/3/4/5/6/7/
SLOT1/2/3/4/5/6/7/
From the
I-1, S-1.1, L-1.1,
LC
optical
8/11/12/13/14/15/1
8/11/12/13/14/15/1
front panel
L-1.2 and V-1.2
interface
6/17
6
board
SL1
STM-1
SLOT1/2/3/4/5/6/7/
SLOT1/2/3/4/5/6/7/
From the
I-1, S-1.1, L-1.1,
LC
optical
8/11/12/13/14/15/1
8/11/12/13/14/15/1
front panel
L-1.2 and V-1.2
interface
6/17
6
board
SEP1
STM-1 line
SLOT1/2/3/4/5/6/13
SLOT1/2/3/4/5/6/13
From the
75Ω STM-1
SMB
processing
/14/15/16/17
/14/15/16
front panel or
electrical
board
the interface
interface
board
BA2/
Optical
SLOT1/2/3/4/5/6/7/
SLOT1/2/3/4/5/6/7/
From the
—
LC
Booster
8/11/12/13/14/15/1
8/11/12/13/14/15/1
front panel
BPA
amplifier
6/17
6/17
board/Optic
al Booster &
pre-amplifie
r
DCU
Dispersion
SLOT1/2/3/4/5/6/7/
SLOT1/2/3/4/5/6/7/
From the
—
LC
compensati
8/11/12/13/14/15/1
8/11/12/13/14/15/1
front panel
on board
6/17/18
6/17/18
2-5
Board
Slots
Slots
available(80G
available(40G
Outlet
Conne
Board
Full name
Interface type
cross-connect
cross-connect
mode
ctor
capacity)
capacity)
SPQ4
4 ×
SLOT2/3/4/5/13/14/
SLOT2/3/4/5/13/14/
From the
75Ω E4/STM-1
SMB
E4/STM-1
15/16
15/16
front panel
electrical
processing
interface
board
PD3
6 × E3/DS3
SLOT2/3/4/5/13/14/
SLOT2/3/4/5/13/14/
From the
75Ω E3/DS3
SMB
processing
15/16
15/16
interface
electrical
board
board
interface
PL3
3 × E3/DS3
SLOT2/3/4/5/13/14/
SLOT2/3/4/5/13/14/
From the
75Ω E3/DS3
SMB
processing
15/16
15/16
interface
electrical
board
board
interface
PQ1
63 × E1
SLOT1/2/3/4/5/13/1
SLOT1/2/3/4/5/13/1
From the
120Ω and 75Ω E1
DB44
processing
4/15/16
4/15/16
interface
interface
board
board
PQM
63 × T1/E1
SLOT1/2/3/4/5/13/1
SLOT1/2/3/4/5/13/1
From the
120Ω E1
DB44
processing
4/15/16
4/15/16
interface
interface and
board
board
100Ω T1 interface
EGS2
2-Port
SLOT5/6/7/8/11/12/
SLOT6/7/8/11/12/1
From the
1000Base-SX/LX
LC
Gigabit
13/14
3
front panel
Ethernet
optical
interface
board with
Lanswitch
EFS0
Fast
SLOT2/3/4/5/13/14/
SLOT2/3/4/5/13/14/
From the
10Base-T and
RJ45
Ethernet
15/16
15/16
interface
100Base-TX
Interface
board
Board with
Lanswitch
EFS4
4-Port Fast
SLOT1/2/3/4/5/6/7/
SLOT1/2/3/4/5/6/7/
From the
10Base-T and
RJ45
Ethernet
8/11/12/13/14/15/1
8/11/12/13/14/15/1
front panel
100Base-TX
Interface
6/17
6
Board with
Lanswitch
Table 2-3 Interface boards and their corresponding slots
Slots
Slots
Interface
available(80G
available(40G
type
Cooperating
Board
Full name
cross-connect
cross-connect
board
capacity)
capacity)
EU08
8 × STM-1 electrical
SLOT19/21/23/25/
Not support.
SMB
SEP1
interface board
29/31/33/35
2-6