The SLQ1A 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.
Table 1 provides the functions and features of the SLQ1A.
Table 1 Functions and features of the SLQ1A
| Function and Feature | SLQ1A |
|---|
| Basic functions | Transmits and receives 4xSTM-1 optical signals. |
| Specifications of the optical interface | - Supports different types of standard optical interfaces, namely,
the I-1, S-1.1, L-1.1, L-1.2, Ie-1, and Ve-1.2.
- The characteristics of the optical interfaces of the I-1, S-1.1,
L-1.1, and L-1.2 types comply with ITU-T G.957.
- The characteristics of the optical interfaces of the Ie-1 and
Ve-1.2 types comply with the standards defined by .
|
| Specifications of the optical module | - 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, which
facilitates the maintenance and upgrading of the optical module.
|
| Service processing | Supports the VC-12 services, VC-3 services, and VC-4 services. |
| Overhead processing | - Processes the section overheads of the STM-1 signals.
- Supports the transparent transmission and termination of the path
overheads.
- Supports the setting and query of the J0, J1, and C2 bytes.
- Supports one to four channels of ECC communication.
|
| Alarms and performance events | Reports various alarms and performance events, which facilitates
the management and maintenance of the equipment. |
| Protection schemes | Supports Two-fiber ring MSP, Four-fiber ring MSP, Linear MSP, SNCP,
SNCTP, and SNCMP. |
| Maintenance features | - 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 press-to-collect function in fault data collection.
|
Relationship between the feature code of the SLQ1A and the type of
optical interface
The technical specifications of the SLQ1A include the parameters
specified for optical interfaces, laser safety class, mechanical
specifications, and power consumption.
Parameters Specified for Interfaces
Table 1 lists the parameters specified for the optical interfaces
of the SLQ1A.
Table 1 Specifications of the ports
| Port type | Description |
|---|
| I-1 | 2 km STM-1 two-fiber bidirectional optical interfaces |
| 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 |
| Ve-1.2 | 100 km STM-1 two-fiber bidirectional optical interfaces |
| Ie-1 | 2 km STM-1 two-fiber bidirectional optical interfaces |
Laser Safety Class
The safety class of the laser on the board is Class 1. The maximum
launched optical power of the optical interfaces is less than 10
dBm (10 mW).
Mechanical Specifications
The mechanical specifications of the SLQ1A are as follows:
- Dimensions (mm): 25.4 (W) x 235.2 (D) x 261.4 (H)
- Weight (kg): 1.0
Power Consumption
The maximum power consumption of the SLQ1A at room temperature
(25°C) is 15 W.
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