Alcatel-Lucent 1643 AMS - Port types

Port types
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Introduction
A Port is an interface point for signals. A distinction can be made between physical
and logical ports. At the logical port the overhead bytes are terminated: in the transmit
direction overhead bytes are added, in the receive direction overhead bytes are
extracted. Therefore logical ports are also called Termination Points.
The following figure shows the physical and logical ports
Physical ports
The 1643 AM or 1643 AMS network element contains two STM-1/4 line ports and 1
or 2 tributary port units. The first tributary unit has sixteen two Mbit/s ports, The
second tributary unit is an optional extension unit.
The following table shows the different types of extension units with its port types and
number of ports
Extension Unit number of ports
1.5 Mbit/s 16 x 1.5 Mbit/s (DS1)
2 Mbit/s 16 x 2 Mbit/s (E1)
34 Mbit/s 2 x 34 Mbit/s (E3)
45 Mbit/s 2 x 45 Mbit/s (DS3)
X.21 4 x 2 Mbit/s
TransLAN
®
Plus 4 x 10/100 BaseT Ethernet
STM-1 electrical 2 x 155 Mbit/s
STM-1 1330 nm SH 2 x 155 Mbit/s
Traffic maintenance
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Alcatel-Lucent - Proprietary
See notice on first page
365-312-807R7.2
Issue 4, May 2007