Support two-fiber unidirectional and bidirectional MSPs, four-fiber MSP, unidirectional and bidirectional SNCPs, PPs. Support the 1:1, 1+1 and 1:N (1<, N? 14) MSP mode. Supports SNCP and SNCP, SNCP and PP, SNCP and MSP, MSP and MSP, and PP and MSP protection scheme. Supports intersection and DNI protection for the following: SNCP and SNCP, SNCP and MSP, and MSP and MSP. Support node failure protection. adopts the 1+1 hot backup. Support phase-lock 2 external timing signals and 12 timing signals of the interface units, provide 2 timing signals, and generate system clock signals. XCS is a Cross-Connect board for Huawei Metro 3000, provide 128?128 VC-4s High order, 32?32 VC-4 Low order Cross-Connect capacity and 96VC-4s Access capacity. XCS have 65 version, part number is 03030GJA.
