The Huawei OSN3500 SSN1SL64 optical interface board belongs to the line veneer and realizes the reception and transmission of STM-64 optical signals, and the N1SL64 does not support the TCM function or the AU-3 service. When configuring multiplexing segment protection and SNCP, if the working board is N2SL64 with TCM function enabled or AU-3 service configured, the protection board is not allowed to be N1SL64 that does not support TCM function or AU-3 service, or else the inversion will lead to the service interruption.N1SL64/N2SL64 support DWDM color optical interface, and the optical interface adopts LC connector.DWDM The optical interface supports 40km transmission distance.N1SL64, N4SL64 and N2SL64 support VC-4-4c, VC-4-16c, and VC-4-64c cascading services.N1SL64/N4SL64 support inner loopback and outer loopback at VC-4 level.N2SL64 supports TCM function. When the crossover capacity is 200Gbit/s, the N1SL64 board can be inserted in slots 7~slot 8 and slots 11~slot 12 of the subrack.The N4SL64 board can be inserted in slots 5~slot 8 and slots 11~slot 14 of the subrack.

Relationship between Huawei OSN3500 N1SL64 optical interface board feature codes and optical interface types

Single board	Characteristic code	Optical interface type
SSN1SL6400	00	Fixed-wavelength optical interface
SSN4SL6401M01	01M01	Fixed-wavelength optical interface
SSN1SL6401	01	I-64.2
SSN1SL6402, SSN4SL6402	02	S-64.2b
SSN1SL6403	03	Le-64.2
SSN1SL6404
04	Ls-64.2
SSN1SL6405	05	L-64.2b
SSN1SL6406	06	V-64.2b
SSN2SL6400	00	Fixed wavelength optical interface
SSN2SL6411	11	I-64.2
SSN2SL6412	12	S-64.2b
SSN2SL6413	13	Le-64.2
SSN2SL6402	02	S-64.2b
SSN2SL6403	03	Le-64.2
SSN2SL6404	04	Ls-64.2
SSN2SL6405	05	L-64.2b
SSN2SL6406	06	V-64.2b
SSN2SL6415	15	L-64.2b
SSN2SL6416	16	V-

64.2b

Huawei N1SL64Optical Interface BoardMetrics N1SL64/N2SL64 Interface Metrics Type Description I-64.12km STM-64 Dual-Fiber Bi-directional Optical Interface I-64.225km STM-64 Dual-Fiber Bi-directional Optical Interface S-64.2b40km STM-64 Dual-Fiber Bi-directional Optical Interface L-64.2b (BA) 80km STM-64 Dual-fiber bi-directional optical interface Le-64.260km STM-64 Dual-fiber bi-directional optical interface Ls-64.280km STM-64 Dual-fiber bi-directional optical interface V-64.2b (BA+PA+DCU) 120km STM-64 Dual-fiber bi-directional optical interface 40km DWDM40km DWDM STM-64 Optical Interface

This chapter of related technical information and SDH equipment troubleshooting process by the Shenzhen Optical Transmission Network Technology Co. Our company specializes in Huawei SDH optical transmission equipment, SDH transmission equipment sales.