Alcatel-Lucent 1643 AMS Applications And Planning Manual page 261

SHDSL Overview
Individual Sa bit provisioning case of ISDN modes
Three types of 2 Mbit/s services can be provided over SHDSL links, which can be
selected from the user interface per NTU. These features work only for NEs which
support QD2.
• Transparent E1:
In this case there is a leased-line connection between two end-user sites providing
2048 kbit/s throughput. This signal remains unmonitored and does not have G.704
framing. From a TS0 processing and monitoring point of view this is a trivial case:
TS0 is not monitored and transparently passed through.
• ISDN-PRI:
In this case there is a "traditional" ISDN-PRI connection between the end-user on
one end and a 64 kbit/s PSTN switch with ISDN features on the other. The
effective throughput is 1920 kbit/s (30 B-channels). TS0 is used for monitoring and
maintenance purposes by the operator. TS16 is used for signaling between the
switch and the end-user client equipment. From a transport perspective TS16 is
transparently transported. Compared with the ISDN-LL mode, the ISDN
terminating equipment on both ends of the ISDN link have a different role (ET or
TE); it is asymmetric.
• ISDN-LL: In this case there is a leased-line connection between two end-user sites
providing 1984 kbit/s throughput. TS0 is used for monitoring and maintenance
purposes by the operator. Compared with the ISDN-PRI mode, the ISDN
terminating equipment on both ends of the ISDN link have the same role (TE); it is
symmetric. The role of the LTU is to translate request and response messages
between the management system and the NTUs regarding the provisioning of the
TS0 functions.
AIS options in NTUs
It is possible for the user to provide certain AIS options via the GUI. This feature
works only for NEs which support EOC-ext..
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365-312-801R7.2
Issue 3, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
SHDSL features
12-15