Huawei OSN3500 SLQ1A single board has the functional version of N1, which receives and transmits 4-channel STM-1 optical signals.N1SLQ1A can replace N1SLQ1.It supports the standard optical interfaces of I-1, S-1.1, L-1.1, L-1.2, Ie-1, and Ve-1.2. Among them, I-1, S-1.1, L-1.1 and L-1.2 optical interface characteristics. The optical interface provides laser on and off settings and laser auto shutdown function. Supports the use and monitoring of SFP pluggable optical modules, facilitating the maintenance and upgrade of optical modules. Supports segment overhead processing of STM-1 signals. Supports setting and querying of J0/J1/C2 bytes.

Relationship between Huawei SLQ1A single-board feature codes and optical interface types

Single-board	Characteristic Code	Optical interface type
SSN1SLQ1A10	10	S-1.1
SSN1SLQ1A11	11	L-1.1
SSN1SLQ1A12	12	L-1.2
SSN1SLQ1A13	13	Ve-1.2
SSN1SLQ1A14	14	I-1
SSN1SLQ1A15	15	Ie-1
SSN1SLQ1A16	16	S-1.1
SSN1SLQ1A17	17	L-1.1
SSN1SLQ1A18	18	L-1.2
SSN1SLQ1A19	19	Ve-1.2
SSN1SLQ1A20	20	I-1
SSN1SLQ1A21	21	Ie-1
SSN1SLQ1A22	22	S-1.1
SSN1SLQ1A23	23	L-1.1
SSN1SLQ1A24	24	L-1.2
SSN1SLQ1A25	25	Ie-1

Huawei SSN1SLQ1A Optical Interface Board Specifications

Type	Description
Ie-1	2km STM-1 dual-fiber bidirectional optical interface
S-1.1	15km STM-1 Dual Fiber Bidirectional Optical Interface
L-1.1	40km STM-1 dual-fiber bidirectional optical interface
L-1.2	80km STM-1 Dual Fiber Bidirectional Optical Interface
Ve-1.2	100km STM-1 Dual Fiber Bidirectional Optical Interface
Ie-1	2km STM-1 dual-fiber bidirectional optical interface

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