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| Specifications | ||||
| Switching Capacity | TDM: 60 Gbit/s (higher-order), 20Gbit/s (lower order) | |||
| Packet: 8 Gbit/s | ||||
| Service Slots | 12 slots for processing boards and 4 slots for interface boards | |||
| Supported Interfaces | MSTP interfaces | STM-1/4/16, E1/E3/E4/T1/T3, FE/GE, DDN, IMA/ATM,FEC/EFEC interface, E1 optical interface, SAN, Video | ||
| PCM interfaces | FXS/FXO, 2/4 wire/E&M, V.35/X.21/V.11/V.24/V.28, RS232/422, G.703 64Kbit/s codi-rectional interface | |||
| Packet transport interfaces | E1, FE/GE | |||
| WDM interfaces | 40-channel DWDM interfaces, compliant with ITU-T G.694.1. 8-channel CWDM interfaces, compliant with ITU-T G.694.2 | |||
| Power Supply | DC: -48V DC or -60V DC, AC: 220V/110V AC | |||
| Maximum Number of Services Supported by a Single Subrack | Service Interface | Max | Service Interface | Max |
| STM-16 | 5 | STM-4 | 22 | |
| STM-1 | 54 | STM-1(electrical) | 18 | |
| E4 | 8 | E3/T3 | 27 | |
| E1/T1 | 190 | E1 Optical | 24 | |
| FE | 56 | GE | 12 | |
| DDN(N×64K) | 16 | Framed E1 | 16 | |
| FXS/FXO | 36 | 2/4 wire/E&M | 18 | |
| STM-1 ATM | 12 | STM-4 ATM | 3 | |
| ESCON | 12 | FICON/FC100 | 6 | |
| FC200 | 3 | DVB-ASI | 12 | |
| Clock Synchronization | Line clock source | |||
| Tributary clock source | ||||
| Two external clock inputs/outputs (2 MHz or 2 Mbit/s) | ||||
| Auxiliary Interface | Orderwire interface | |||
| Management serial, serial, 10M/100M NM, commissioning interface | ||||
| Alarm interface, Cabinet alarm indicator interface | ||||
| Mechanical specification | ||||
| Dimensions (mm) | 221 (H) x 444 (W) x 263 (D) | |||
| Boards applicable on OSN 1500B | |
| List of cross-connect board | |
| Q2CXL1 | 1xSTM-1 SCC unit, cross-connect unit, timing unit, and line unit integrated board |
| Q2CXL4 | 1xSTM-4 SCC unit, cross-connect unit, timing unit, and line unit integrated board |
| Q2CXL16 | 1xSTM-16 SCC unit, cross-connect unit, timing unit, and line unit integrated board |
| Q5CXLLN | 1xSTM-16/STM-4/STM-1 SCC unit, cross-connect unit, timing unit, and line unit integrated board |
| R1CXLLN | 1xSTM-16/STM-4/STM-1 SCC unit, cross-connect unit, timing unit, and line unit integrated board |
| R1PCXLN | SCC unit, cross-connect unit, optical interface unit integrated board |
| List of packet processing boards | |||
| Q1PEGS2 | 2xGE processing board | R1PEF4F | 4xFE optical processing board |
| R1PEGS1 | 1xGE processing board | R1ML1 | Multi-protocol 16xE1 electrical processing board |
| R1PEFS8 | 8xFE processing board | ||
| List of SDH boards | |||
| N3SL16, N3SL16A | 1xSTM-16 optical interface board | N1SF16E | 1xSTM-16 optical interface board (with the outband EFEC function) |
| N1SL16,N1SL16A, N2SL16,N2SL16A | 1xSTM-16 optical interface board | N3SLQ41 | 4xSTM-4/STM-1 optical interface board |
| N1SF16 | 1xSTM-16 optical interface board (with the outband FEC function) | N1SLQ4, N2SLQ4 | 4xSTM-4 optical interface board |
| N1SLQ4A | 4xSTM-4 optical interface board | N1SLD4, N2SLD4, N1SLD4A | 2xSTM-4 optical interface board |
| R1SLD4 | 2xSTM-4 optical interface board (divided slot) | R1SL4 | 1xSTM-4 optical interface board (divided slot) |
| N1SL4, N2SL4, N1SL4A | 2xSTM-4 optical interface board | N1SLT1 | 12xSTM-1 optical interface board |
| N1EU08 | 8xSTM-1 electrical interface board | N1OU08((LC) N2OU08(SC) | 8xSTM-1 optical/electrical interface board |
| N2SLO1, N3SLO1 | 8xSTM-1 optical interface board | N1SLQ1, N2SLQ1 | 4xSTM-1 optical interface board |
| N1SLQ1A | 4xSTM-1 optical interface board | R1SLQ1 | 4xSTM-1 optical interface board (divided slot) |
| N1EU04 | 4xSTM-1 electrical interface board | N1SEP1 | 2xSTM-1 when interfaces are available on front panel.8xSTM-1 when interfaces are available on the corresponding interface board |
| N1SL1, N2SL1, N1SL1A | 1xSTM-1 optical interface board | R1SL1 | 1xSTM-1 optical interface board (divided slot) |
| List of List of PDH board | |||
| N1SPQ4 | 4xE4/STM-1 electrical processing board | N2SPQ4 | 4xE4/STM-1 electrical processing board |
| N1MU04 | 4xE4/STM-1 electrical interface board | N2PQ3 | 12xE3/T3 service processing board |
| N1D34S | 6xE3/T3 electrical switching interface board | N1C34S | 3xE3/T3 electrical switching interface board |
| N1PD3, N2PD3 | 6xE3/T3 service processing board | N1PL3, N2PL3 | 3xE3/T3 service processing board |
| N1PL3A, N2PL3A | 3xE3/T3 service processing board (Interfaces are available on the front panel.) | N1PQ1 | 63xE1 service processing board |
| N2PQ1 | 63xE1 service processing | N1PQM | 63xE1/T1 service processing board |
| N1D12B | 32xE1/T1 electrical switching interface board | N1D12S | 32xE1/T1 electrical switching interface board (120 ohms) |
| N1D75S | 32xE1 electrical switching interface board (75 ohms) | R1PD1, R2PD1 | 32xE1 service processing board |
| R1PL1 | 16xE1 service processing board | N1PFL1 | 8xE1 optical processing board |
| N1TSB8 | 8-port electrical switching interface board | N1TSB4 | 4-port electrical switching interface board |
| N1DX1 | DDN service accessing and converging board | N3DX1 | DDN service accessing and converging board |
| N1DXA | DDN service converging and processing board | N1DM12 | DDN service interface board |
| List of EoS boards | |||
| N1EFT8,N2EFT8 | 8xFE/16xFE transparent transmission board | N1EFT8A, N2EFT8A | 8xFE transparent transmission board |
| N1EFS0A | 16xFE switching and processing board | N1EFS0,N2EFS0, N4EFS0, N5EFS0 | 8xFE switching and processing board |
| N1EFS4, N2EFS4, N3EFS4 | 4xFE switching and processing board | R1EFT4, R2EFT4 | 4xFE transparent transmission board (divided slot) |
| N1EMS4 | 4xGE and 16xFE switching and processing board | N1EMS2 | 2xGE and 16xFE switching and processing board |
| N1EGS4, N3EGS4 | 4xGE switching and processing board | N1EGT2, N2EGT2 | 2xGE transparent transmission board |
| N2EGS2, N3EGS2 | 2xGE switching and processing board | N1EFF8, N1EFF8A | 8x100M Ethernet optical interface board |
| N1ETF8,N1ETF8A | 8x100M Ethernet twisted-pair interface board | N1ETS8 | 8×10/100M Ethernet twisted-pair interface switching board |
| List of ATM boards | |||
| N1ADL4, N1IDL4 | 1xSTM-4 ATM service processing board | N1ADQ1, N1IDQ1 | 4xSTM-1 ATM service processing board |
| List of RPR boards | |||
| N2EGR2 | 2xGE ring processing board | N2EMR0 | 12xFE and 1xGE ring processing board |
| List of RPR boards | |||
| N1VST4 | 4-port video service transparent transmission board | N1MST4 | 4-port multi-service transparent transmission board |
| List of RPR boards PCM boards | |||
| N1FXSO12 | 12-port FXS/FXO processing board | N1FXS12 | 12-port FXS processing board |
| N1FXO12 | 12-port FXO processing board | N1AT6 | 6-port 2/4 wire and E&M processing board |
| List of DWDM board | |||
| TN11CMR4 | 4-channel optical add/drop multiplexing board | N1MR2C, N1MR2B | 2-channel optical add/drop multiplexing board |
| TN11CMR2, TN11MR2 N1MR2A | 2-channel optical add/drop multiplexing board | TN11MR2 | 2-port optical add/drop multiplexing board |
| TN11MR4 | 4-port optical add/drop multiplexing board | N1CMD2 | 2-channel bidirectional optical multiplexer and demultiplexer board |
| N1LWX | Arbitrary bit rate wavelength conversion board | N1FIB | Filter isolating board |
| List of auxiliary boards | |||
| R1EOW | Orderwire processing board | R1AUX, R2AUX | System auxiliary interface board |
| R1AMU | Orderwire processing or alarm cascading board | R1FAN | Fan board |
| List of optical amplifier boards | |||
| N1BPA | One-channel power amplifier and one-channel pre-amplifier board | N2BPA | One-channel power amplifier and one-channel pre-amplifier board |
| N1BA2 | Two-channel power amplifier board | N1COA, 61COA, 62COA | Case-shaped optical amplifier |
| N1RPC01 | Forward Raman driving board (external) | N1RPC02 | Backward Raman driving board (external) |
| List of power boards | |||
| UPM | Uninterruptible power module | R1PIU, R1PIUB | Power interface board |
| Board substitution | |||
| Substitute Board | To-Be-Substituted Board | Substitute Board | To-Be-Substituted Board |
| N1SL1A | N1SL1 | N1SL4A | N1SL4 |
| N1SLD4A | N1SLD4 | N1SLQ1A | N1SLQ1 |
| N1SLQ4A | N1SLQ4 | N3SL16 | N1SL16 |
| N3SL16A | N1SL16A | N3SLQ41 | N1SLQ1 N1SLQ4 N2SLQ1 N2SLQ4 |
| N2PD3 | N1PD3 | N2PL3 | N1PL3 |
| N2PL3A | N1PL3A | N2PQ1 | N1PQ1 |
| N2SPQ4 | N1SPQ4 | N2EFS0 | N1EFS0 |
| N2EFS4 | N1EFS4 | N2ETF8 | N1ETF8 |
| N2EFT8A | N1EFT8A | R2EFT4 | R1EFT4 |
| N2EGT2 | N1EGT2 | N3EFS4 | N1EFS4 N2EFS4 |
| N3EGS2 | N1EGS2 N2EGS2 | N4EGS4 | N3EGS4 |
| N5EFS0 | N1EFS0 N2EFS0 N4EFS0 | ||
| Restrictions for board substitution | ||
| Boards that support board version replacement functions | Boards that cannot Be substituted | Condition |
| N1SL16A | N2SL16A | The TCM function is enabled for the N2SL16A/N3SL16A. |
| N3SL16A | ||
| N3SL16 | N2SL16 | The TCM function is enabled or AU-3 services are configured for the N2SL16 |
| N3SL16A | N2SL16A | AU-3 services are configured for the N2SL16A. |
| N3SLO1 | N2SLO1 | AU-3 services are configured for the N2SLO1. |
| N2EFS0, N4EFS0 | N1EFS0 | N1EFS0 is configured with QoS functions. If an N4EFS0/N2EFS0 is configured as N1EFS0 and the simulation package loading method is used, the board software of N1EFS0 is loaded. As a result, a cold reset is performed on the board and board version replacement function becomes ineffective. Therefore, an N4EFS0/N2EFS0 must not be configured as an N1EFS0. |
| N4EFS0 | N2EFS4 | If an N4EFS0 is configured as an N2EFS0 and the simulation package loading method is used, the board software of the N2EFS0 is loaded. As a result, a cold reset is performed on the board and the board version replacement function becomes ineffective. Therefore, an N4EFS0 must not be configured as an N2EFS0. |
| N2EGS2 | N1EGS2 | The N1EGS2 is configured with QoS functions. |
