12xSTM-1 Optical Interface Board(S-1.1,LC)
Apply to Huawei OSN 1500B, OSN 2500, OSN 3500, OSN 7500 to transmit/receive 12*STM-1 optical signals range at 2-15km.
Supports the detection and query of the information about the optical module.
Provides the ALS function. The optical interface supports the setting of the on/off state of a laser.
Supports the usage and detection of the SFP optical module.
Supports the VC-12 services, VC-3 services, and VC-4 services.
Supports the transparent transmission and termination of the path overheads.
Supports the setting and query of the J0, J1, J2, and C2 bytes.
Supports one to twelve channels of ECC communication.
Supports the time synchronization feature and transmission of the time information by using the section overhead bytes.
Supports the two-fiber ring MSP, four-fiber ring MSP, linear MSP, SNCP, SNCTP, and SNCMP.
Supports inloops and outloops at optical interfaces.
Supports inloops and outloops on VC-4 paths.
Supports warm resets and cold resets. The warm reset does not affect services.
Supports the query of the manufacturing information of the board.
Supports the in-service loading of the FPGA.
Supports the upgrade of the board software without affecting services.
Supports the Cause by Cross function.
Supports the press-to-collect function in fault data collection.
Supported Options
| Accessory | Model |
| Optical Fiber Patch Cables | OM3 LC-LC |
| SFP Modules | Huawei SFP-155M |
| Optical Distribution Frame (ODF) | ODF-Huawei-12U |
Compare to Similar Items
| Model | Differences |
| Huawei SSN2SLT1(L-1.1,LC) | Supports only 8xSTM-1 interfaces |
| Huawei SSN3SLT1(L-1.3,LC) | Higher power consumption |
| Huawei SSN4SLT1(L-1.4,SC) | Uses SC connectors instead of LC |
Quick Spec
| Brand | Huawei |
| Model | SSN1SLT1(L-1.2,LC) |
| Interfaces | 12xSTM-1 |
| Connector Type | LC |
| Transmission Rate | 155 Mbps per channel |





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