Nortel Networks NN43001-318 - Manual (Page 75)

Installation procedures 75
Connecting the ISDN BRI terminals ISDN BRI terminals are connected
to DSLs using modular cables not longer than 10 m (33 ft) with RJ-45 type
plugs on each end. One end of the cable is plugged into the terminal, and
the other end is plugged into the telephone outlet.
All terminals must be compatible with the system and comply with one of
the following protocols for ISDN BRI terminals:
• ETSI NET-3
• INS NET-64
• NUMERIS
• ANSI standards
Contact your Nortel Networks representative for the latest list of compatible
terminals.
To connect 1TR6 terminals, an ETSI NET-3 to 1TR6 protocol converter
is required. A terminal adapter (the So-Adapter) has been specifically
designed to interface with the ISDN BRI DSL and the 1TR6 terminals. Its
main function is to convert 1TR6 protocol, sent from the 1TR6 terminal into
the ETSI NET-3 protocol required for ISDN BRI.
S/T interface specification
The S/T interface uses an 8-conductor modular cable terminated with an
8-pin RJ-45 type plug. An 8-pin RJ-45 type jack located on the terminal
connects the terminal to the DSL using this modular cable.
Table 17 "S/T interface connector specification" (page 75) shows the
connector pin assignment for the jack and the plug. It also shows the signal
names for each interface pin at the SILC and at the terminal.
Table 17
S/T interface connector specification
Pin number
RJ45 jack
pin signal name SILC
signal name
1 Power Source 3 No connection
2 Power Source 3 No connection
3 TX + RX +
4 RX + TX +
5 RX - TX -
6 TX - RX -
7 Power Sink 2 (-) No connection
8 Power Sink 2 (+) No connection
Nortel Communication Server 1000
ISDN Basic Rate Interface Installation and Commissioning
NN43001-318 01.02 Standard
Release 5.0 20 June 2007
Copyright © 2003-2007, Nortel Networks
.