Alcatel-Lucent 1643 AMS Applications And Planning Manual page 249

SHDSL Overview
SHDSL configurations
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Applications
There are two application possibilities for the SHDSL feature:
• End-user access for E1 via a E1 NTU (NT2M modem)
• End-user access for Ethernet using a 10Base-T or a 100-Base-TX interface via an
Ethernet NTU (NT10ETH modem). There can be one to four parallel SHDSL links
to each NTU providing 2.2 Mbit/s to 8.7 Mbit/s throughput. Each NT10ETH
modem has 1 or 2 Ethernet ports towards the end-user
The 1643 Access Multiplexer AM / 1643 Access Multiplexer Small AMS has to be
equipped with an X12SHDSL option card and is then operating as LTU (Line
Termination unit). All ports of the X12SHDSL option card operate either in the
E1/SHDSL mode or in the TU12/SHDSL mode.
An E1 modem provides one E1 user interface and one single SHDSL link. This means
a one-to-one correspondence between an LTU SHDSL port, the NT2M and the E1
end-user interface.
An NT10ETH modem has two 10/100BASE-T(X) interfaces and can have one to four
parallel SHDSL links, that are all connected to the same X12SHDSL option card.
Each SHDSL link can have up to two SHDSL Regenerator Units (SRUs) depending on
the span connected to the LTU port. Each SRU supports one SHDSL link.
The following figure shows a network example with a 1643 Access Multiplexer AM /
1643 Access Multiplexer Small AMS configured as LTU with 12 SHDSL links
connected.
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365-312-801R7.2
Issue 3, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
12-3