X12Shdsl Option Card - Alcatel-Lucent 1643 AMS Applications And Planning Manual

Product description

X12SHDSL option card

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The X12SHDSL option card provides additional interfaces for the 1643 AM (DC
version) and 1643 AMS in order to integrate sites with 2 Mbit/s access into an existing
network in cases where no fiber is available.
The X12SHDSL option card could, for example, be used for the following
applications:
• Connection of UMTS/GSM base stations to the SDH network via copper lines
• Delivery of ISDN traffic to customers via copper lines
• Connection of industrial parks or major customers.
Applications
The following figures show two typical network examples for the connection of UMTS
base stations via copper lines:
In this example a 1643 AM / 1643 AMS provides the interfaces to several third party
NTUs to which a base station is connected. The connection to the SDH network is
realized via a 1643 AM / 1643 AMS which serves as LTU (Line Termination Unit) in
this case. The two units are connected via twisted copper pairs.
For the data transmission the SHDSL protocol is used. In this case the copper pairs can
have a maximum length of 3.5 km. It is also possible to connect base station directly
via 2 Mbit/s (E1) lines as shown in the example. In such an application a maximum
length of 400 m can be bridged.
UMTS
base station
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365-312-801R7.2
Issue 3, May 2007
E1
NTU
SDSL
(max. 3500m)
Alcatel-Lucent - Proprietary
10/100 Base-T
Ethernet
NTU
AM/
AMS
AM/
AMS
STM-1 or STM- 4
AM/
AMS
E1 (max. 400m)
UMTS
base station
See notice on first page
STM-16
4-33