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HUAWEI OptiX OSN 7500 II Equipment slots and boards

An OptiX OSN 7500 II subrack consists of an upper layer and a lower layer, wherein 40 slots are available. There are 20 slots at the upper layer and 18 slots at the lower layer. In addition, there are two slots for fan boards.

 Figure 1 shows the slot layout of an OptiX OSN 7500 II subrack when the TNN1PSXCS board is used.

The slots in an OptiX OSN 7500 II subrack are allocated as follows:
  • Slots for service interface boards: slots 26-33 and 34-41
  • Slots for service processing boards: slots 1-8 and 11-18
  • Slots for cross-connect and timing boards: slots 9-10
  • Slots for power interface boards: slots 22-23
  • Slots for system control and communication boards: slots 24-25

Table 1 Mapping between slots for interface boards and slots for processing boards
Slot for Processing BoardSlot for Interface Board
Slot 1Slots 26-27
Slot 2Slots 28-29
Slot 3Slots 30-31
Slot 4Slots 32-33
Slots 5-8-
Slots 11-14-
Slot 15Slots 34-35
Slot 16Slots 36-37
Slot 17Slots 38-39
Slot 18Slots 40-41



If overhead bytes pass through the backplane bus between two slots, the two slots are called paired slots. Paired slots achieve automatic transparent transmission of overhead bytes such as K bytes, D bytes, and E1 overhead bytes. This improves multiplex section protection (MSP) switching performance and DCC communication with other NEs even after the system control board on the local NE cannot be detected. Table 2 and Table 3 list paired slots.

 Table 2 Paired slots for boards each of which occupies one slot
SlotPaired Slot
Slot 1Slot 2
Slot 3Slot 4
Slot 5Slot 6
Slot 7Slot 8
Slot 11Slot 12
Slot 13Slot 14
Slot 15Slot 16
Slot 17Slot 18


Table 3 Paired slots for boards each of which occupies two slots
SlotPaired Slot
Slot (2, 3)Slot (4, 5)
Slot (4, 5)Slot (6, 7)
Slot (12, 13)Slot (14, 15)
Slot (14, 15)Slot (16, 17)

The OptiX OSN 7500 II  equipment supports various types of boards.

Table 1 List of cross-connect boards and system control boards
BoardVersionDescription
SCATNN1System control and auxiliary processing board
PSXCSTNN1Super dual-plane cross-connect and synchronous timing board
IXCSTNN1Super cross-connect and synchronous timing board

NOTE:
Only the TNN1PSXCS board support MPLS-TP OAM and centralized MPLS OAM.

Table 2 List of packet processing boards
BoardVersionDescription
EX2TNN12x10GE Ethernet processing board
EG8TNN18xGE Ethernet processing board
EG16TNN116xGE Ethernet processing board

Table 3 List of packet interface boards
BoardVersionDescription
CO1TNN18-port channelized STM-1 CES optical interface board
D75ETNN132xE1 interface board (75 ohms)
D12ETNN132xE1 interface board (120 ohms)
ETMCTNN18xFE and 4xFE/GE electrical interface board
AFO1TNN18-port ATM STM-1 service interface board
EFF8TNN18xFE optical interface board

Table 4 List of EoD boards
BoardVersionDescription
EDQ41N14x622/155M SDH optical interface Ethernet dual-mode
multi-function processing board

Table 5 List of smart line boards
BoardVersionDescription
HUNS3TNN14x10G smart line board
HUNQ2TNN14x10G smart line board
HSNQ2TNN1Smart 4x10G line service processing board

Table 6 List of OTN tributary boards
BoardVersionDescription
TOATNN18xany-rate service processing board
TQXTNN14x10G tributary service processing board

Table 7 List of SDH boards
BoardVersionDescription
SLD64N42xSTM-64 optical interface board
SL64N41xSTM-64 optical interface board
SLO16N48xSTM-16 optical interface board
SLQ16N44xSTM-16 optical interface board
SL16N31xSTM-16 optical interface board
SL16AN31xSTM-16 optical interface board
SLQ4AN14xSTM-4 optical interface board
SLH41N316xSTM-4/STM-1 optical interface board
SLQ41N34xSTM-4/STM-1 optical interface board
SLH1N116xSTM-1 signal processing board
SLQ1AN14xSTM-1 optical interface board
EU08N18xSTM-1 electrical interface board
OU08N18xSTM-1 optical/electrical interface board (LC)

Table 8 List of PDH boards
BoardVersionDescription
SPQ4N24xE4/STM-1 electrical processing board
MU04N14xE4/STM-1 electrical interface board
PQ3N212xE3/T3 service processing board
D34SN16xE3/T3 electrical switching interface board
PQ1N263xE1 service processing board
PQMN163xE1/T1 service processing board
D12BN132xE1/T1 electrical switching interface board
D12SN132xE1/T1 electrical switching interface board (120 ohms)
D75SN132xE1 electrical switching interface board (75 ohms)
TSB8N18-port electrical switching interface board
DX1N3DDN service accessing and converging board
DM12N1DDN service interface board

Table 9 List of EoS boards
BoardVersionDescription
EAS2N32x10GE Ethernet processing board
EGS4N44xGE Ethernet processing board
EFS0AN116xFE Ethernet processing board
EFF8N18x100M Ethernet optical interface board
ETF8N18x100M Ethernet twisted-pair interface board
ETS8N18x10/100M Ethernet twisted pair interface switching board
EGSHN116xGE switching and processing board

Table 10 List of SAN/video boards
BoardVersionDescription
VST4N14-port video service transparent transmission board

Table 11 List of WDM boards
BoardVersionDescription
MR2TN112-channel optical add/drop multiplexing board
MR4TN114-channel optical add/drop multiplexing board
CMD2N12-channel bidirectional optical multiplexer and demultiplexer board
XMD2TNN12-channel bidirectional optical multiplexer and demultiplexer board

Table 12 List of auxiliary boards
BoardVersionDescription
FANTN81Fan board

Table 13 List of optical amplifier boards
BoardVersionDescription
BPAN2One-channel power amplifier and one-channel pre-amplifier board
COAN1, 61, 62Case-shaped optical amplifier
OBU1TN12Optical booster amplifier board
RPC01N1Forward Raman driving board (external)
RPC02N1Backward Raman driving board (external)

Table 14 List of dispersion compensation boards
BoardVersionDescription
DCUN2Dispersion compensation board

Table 15 List of power boards
BoardVersionDescription
PIUTN81Power interface board
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