The OSN3500 SSN1SLQ4A board implements the reception and transmission of STM-4 optical signals, completes the photoelectric conversion of STM-4 signals, the extraction and insertion processing of overhead bytes, and reports alarms generated on the line.
The specific functions and characteristics of the SLQ4 single board are shown in Table 1.
Table 1 Functions and features of SLQ4 single board
Functions and features Description
Basic functions Receive and transmit 4-channel STM-4 optical signals.
Optical interface specifications Supports I-4, S-4.1, L-4.1, L-4.2, and Ve-4.2 optical interfaces, of which the characteristics of the I-4, S-4.1, L-4.1, and L-4.2 optical interfaces comply with the ITU-T G.957 recommendations.The optical interface of Ve-4.2 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.
Service processing Supports VC-12/VC-3/VC-4 services and VC-4-4c cascade services.
Overhead processing Supports the processing of segment overhead of STM-4 signals.
Supports processing of channel overhead (transparent transmission and termination).
Supports setting and querying of J0/J1/C2 bytes.
Supports 1 to 4-channel ECC communication.
Alarms and Performance Provides rich alarms and performance events for easy equipment management and maintenance.
Protection Mode Supports two-fiber and four-fiber ring multiplexing segment 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. Connection Multi-protection) protection.
Supports MSP and SNCP shared optical path protection.
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.
Supports the query function of single-board manufacturing information.
Supports online loading of FPGA.
Support smooth upgrade of single board software.


Shenzhen Optical Transmission Network Technology Co., Ltd Main products: Huawei sales and installation of various series of products. Including SDH Optical Terminal: OSN1500, OSN1500B, OSN2500, Huawei OSN3500, Huawei SDH Optical TerminalOSN7500; Huawei Metro1000, Metro2050, OptiX2500+, Huawei Metro3000, Metro5000 and PCM integrated access equipment: FA16, FA02, BX10, etc.
Welcome new and old customers to inquire Manager Wang Tel: 134-3098-8088

Huawei OSN3500 OSN2500 SSN1SLQ4A(L-4.1,LC) 4xSTM-4 Optical Interface Board(L-4.1,LC)
Huawei OSN3500 OSN2500 SSN1SLQ4A(L-4.2,LC) 4xSTM-4 Optical Interface Board(L-4.2,LC)
Huawei OSN3500 OSN2500 SSN1SLQ4A(Ve-4.2,LC) 4xSTM-4 Optical Interface Board(Ve-4.2,LC)

Main products: Huawei's various series of products sales and installation. Including SDH Optical Terminal: OSN1500, OSN2500, OSN3500, OSN7500, Metro2500+, Metro5000, MA5680T, S330, S385, C300, 9300, NE40E-X8, NE40E-X3, ME60-X8, ME60-X3 High-end router boards and kits, switch boards and kits, switch boards and kits. and kits, switch boards and kits, Huawei OSN transmission equipment boards, Huawei SDH optic fiber optic veneer boards, transmission equipment, PON port boards.

This chapter of technical information and related SDH equipment troubleshooting procedures provided by Shenzhen Optical Transmission Network Technology Co. Huawei SDH optical transmission equipment, SDH transmission equipment sales phone: 13430988088 Welcome to telephone consultation!