Huawei SD4 SS63SD4 (L-4.2 SC) Metro 3000 Optix 2500+ board ​ Product Description: Varieties of Huawei original boards for Optix 2500+ (Metro 3000) listed as below: SS-RACK-2.0(T) T66 assembled cabinet (2000x600x600) SS-RACK-2.2(T) T66 assembled cabinet (2200x600x600) SS-RACK-2.6(T) T66 assembled cabinet (2600x600x600) SS-SUBRACK SS6K8SUBRACK-2500+sub-rack (VIII) SS-SCC master control board SS-XCS XC Cross Connect and Clock processing board SS-S16(S-16.1 SC) STM-16 optical interface board (S-16.1, SC) SS-S16(S-16.2 SC) STM-16 optical interface board(S-16.2,SC) SS-S16(L-16.1 SC) STM-16 optical interface board (L-16.1,SC) SS-S16(L-16.2 SC) STM-16 optical interface board (L-16.2, SC) SS-S16(Le-16.2 SC) STM-16 optical interface board (Le-16.2,SC) SS-S16(V-16.2 SC) STM-16 optical interface board (V-16,SC) SS-S16(U-16.2 SC) STM-16 optical interface board (U-16,SC) SS-SL4(Ie-4 SC) STM-4 optical interface board (Ie-4,SC) SS-SL4(S-4.1 SC) STM-4 optical interface board (S-4.1,SC) SS-SL4(L-4.1/SC) 1xSTM-4 optical interface board (L-4.1,SC) SS-SD4(Ie-4 SC) 2xSTM-4 optical interface board (Ie-4,SC) SS-SD4(S-4.1 SC) 2xSTM-4 optical interface board(S-4.1,SC) SS-SD4(L-4.1 SC) 2xSTM-4 optical interface board (L-4.1,SC) SS-SD4(L-4.2 SC) 2xSTM-4 optical interface board (L-4.2,SC) SS-SL1(S-1.1 SC) STM-1 optical interface board (S-1.1,SC) SS-SL1(L-1.1 SC) STM-1 optical interface board (L-1.1,SC) SS-SL1(L-1.2 SC) STM-1 optical interface board (L-1.2,SC) SS-SD1(S-1.1 SC) 2xSTM-1 optical interface board (S-1.1,SC) SS-SD1(L-1.1 SC) 2xSTM-1 optical interface board (L-1.1,SC) SS-SD1(L-1.2 SC) 2xSTM-1 optical interface board (L-1.2,SC) SS-SQ1(S-1.1 SC) 4xSTM-1 optical interface board (S-1.1,SC) SS-PQ1(75 ) 63xE1 interface board (75 ohm) SS-PQ1(120 ) 63xE1 interface board (120 ohm) SS-E75(75/120) 63xE1/T1 access board (75/120ohm) SS-E75S(75) 63xE1 changeover access board(75ohm) SS-EFT Fast Ethernet VC-12/VC-3 transparent transmission board SS-ET1 Fast Ethernet VC-12 transparent transmission board SS-EMT8(RJ45) 8-port Ethernet access board(RJ45) SS-EMS1 Fast/Gigabit Ethernet switching processing board SS-EFS0 Fast Ethernet VC12/VC3 switching processing board SS-EGT2 Gigabit Ethernet VC-4/VC-3 transparent transmission board SS-BA2-D(14 SC) 2*Optical booster amplifier board (14dBm,SC) SS-BPA(14/-37 SC) Optical booster & pre-amplifier board (14/-37dBm,SC) SS-BA2-S(14 SC) single Optical booster amplifier board (14dBm,SC) SS-BA2-S(17 SC) single Optical booster amplifier board (17dBm,SC) SS-BA2-D(17 SC) dual Optical booster amplifier board (17dBm,SC) SS-BA2-D(14/17 SC) dual Optical booster amplifier board (14/17dBm,SC) SS-BPA(17/-37 SC) Optical booster & pre-amplifier board (17/-37dBm,SC) Product Detail: If you are interested, please let us know the specific model. We will provide the best service and the best price! Pr