Table 1 Functions and characteristics of SLQ1 single board

Functions and features

Description

Basic Functions

Receive and transmit 4-channel STM-1 optical signals.

Optical Interface Specifications

Supports I-1, S-1.1, L-1.1, L-1.2, and Ve-1.2 standard optical interfaces, of which the characteristics of I-1, S-1.1, L-1.1, and L-1.2 optical interfaces are in accordance with ITU-T G.957. Ve-1.2 optical interface is a Huawei customized standard.

Optical Module Specifications

Supports optical module information detection and query.

The optical interface provides laser on and off settings and laser automatic shutdown.

Supports the use and monitoring of SFP pluggable optical modules, which facilitates the maintenance of optical modules.

Business Processing

Support VC-12/VC-3/VC-4 services.

Overhead processing

Supports processing of segment overhead for STM-1 signals.

Supports processing of channel overhead (transparent transmission and termination).

Supports setting and querying of J0/J1/C2 bytes.

Supports 1 to 4-way ECC communication.

Alarm and Performance

Provides rich alarm and performance events for easy device management and maintenance.

Protection Mode

Supports two-fiber unidirectional multiplexing segment ring protection, four-fiber multiplexing segment ring protection, linear multiplexing segment protection, SNCP (Sub-Network Connection Protection) protection, SNCTP (Sub-Network Connection Tunnel Protection) and SNCMP (Sub-Network Connection Multi-protection) protection. Network Connection Multi-protection) protection methods.

Maintenance Features

Supports inner loopback and outer loopback functions at the optical port level.

Supports soft reset and hard reset, soft reset does not affect the service.

Support query function of single board manufacturing information.

Support the online loading function of FPGA.

Support smooth upgrade of veneer software.