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Description
SSN1SLT125 overview
Feature Code
The number code that follows the board name in the bar code is the feature code of the board. The feature code of the SLT1 indicates the type of optical interface.
| Board | Feature Code | Type of Optical interface |
|---|---|---|
| SSN1SLT123 | 23 | S-1.1 |
| SSN1SLT124 | 24 | L-1.1 |
| SSN1SLT125 | 25 | L-1.2 |
| SSN1SLT110 | 10 | S-1.1 |
| SSN1SLT120 | 20 | S-1.1 |
| SSN1SLT121 | 21 | L-1.1 |
| SSN1SLT122 | 22 | L-1.2 |
| Port type | Description |
|---|---|
| S-1.1 | 15 km STM-1 two-fiber bidirectional optical interfaces |
| L-1.1 | 40 km STM-1 two-fiber bidirectional optical interfaces |
| L-1.2 | 80 km STM-1 two-fiber bidirectional optical interfaces |
| S-1.1 | 15 km STM-1 single-fiber bidirectional optical interfaces |
| L-1.1 | 40 km STM-1 single-fiber bidirectional optical interfaces |
The SLT1 is available in one functional version, namely, N1.
| Board | Start Version |
|---|---|
| N1SLT1 | V100R003C01 |
SSN1SLT125 Application
The SLT1 is a line board. The SLT1 can be used on the OptiX OSN equipment series to transmit and receive STM-1 optical signals. The SLT1 converts the received optical signals into electrical signals and sends the electrical signals to the cross-connect side. In addition, the SLT1 converts the electrical signals sent from the cross-connect side into optical signals and transmits the optical signals.
SSN1SLT125 Functions and Features
The SLT1 transmits and receives STM-1 optical signals, performs O/E conversion for the STM-1 optical signals, extracts and inserts overhead bytes, and generates alarm signals on the line.
| Function and Feature | SLT1 |
|---|---|
| Basic functions | Transmits and receives 12xSTM-1 optical signals. |
| Specifications of the optical interface | Supports S-1.1, L-1.1 and L-1.2 standard optical interfaces whose characteristics comply with ITU-T G.957. |
| Specifications of the optical module |
|
| Service processing | Supports the VC-12 services, VC-3 services, and VC-4 services. |
| Overhead processing |
|
| Alarms and performance events | Reports various alarms and performance events, which facilitates the management and maintenance of the equipment. |
| Protection schemes | Supports the Two-fiber ring MSP, Four-fiber ring MSP, Linear MSP, SNCP, SNCTP, and SNCMP. |
| Maintenance features |
|
SSN1SLT125 Valid Slots
The slots valid for the SLT1 vary with the cross-connect capacity of the subrack.
The slots valid for a board are determined by the following factors:
- Slot bandwidth
- Cross-connect capacity
- Board version
- When the cross-connect capacity is 20 Gbit/s:
- The N1SLT1 can be installed in slots 12 and 13 in the OptiX OSN 1500A subrack.
- The N1SLT1 can be installed in slots 11-13 in the OptiX OSN 1500B subrack.
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