Alcatel-Lucent 1660SM,P4E4N,3AL79263AA

P4E4N,3AL79263AA,Alcatel-Lucent 1660SM 参考价格：$230.00

The 4 X 140/STM-1 switchable O/E port card is a bidirectional unit which interfaces up to four
plesiochronous 140 Mbit/s (E4) or Synchronous 155 Mbit/s (STM-1) with STM-4-BPF (BPF=backpanel
format).
The choice among the two possible different interfaces is flexible and mixed configuration are allowed.
For each P4E4N port card there are four electrical (75 Ohm) or optical module (Short and Long Haul);
two of the four module are hosted directly on the port card, the other two are hosted in the relevant access
card (A2S1).
The description that follows explains the two operating mode of each interface (140 Mbit/s PDH or 155
Mbit/s SDH) on the port card