Alcatel-Lucent 1660SM,3AL78864AA,P3E3T3

3AL78864AA,P3E3T3,Alcatel-Lucent 1660SM部件编码：3AL78864AA 参考价格：$588.00

The P3E3T3 port card is a bidirectional interface from/to three PDH streams at 34 Mbit/s or at 45 Mbit/s
switchable and the STM-4-BPF (BPF=backpanel format).
Due to the back panel format, the 3 plesiochronous 34 or 45 Mbit/s signals that can be housed in an STM-
1 frame, are dropped/inserted in the AU4#4 of the STM-4 frame.
It realizes the functions required by the ITU-T G.783 rec. i.e.:
• maps the payload into a C-3
• add/extracts the VC3 POH
• processes the TU3 pointer
• adapts the VC3 to the VC4
• assembles/disassembles the STM-1 format