Nortel 1000 Installation And Commissioning Manual page 62

62 Configuring ISDN BRI hardware
Copyright © 2003-2007, Nortel Networks
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Figure 16
SILC line power options
Store unused jumper plugs on position J1 of the SILC for future use.
The following are descriptions of the three options and their jumper
settings.
• Normal power on the TX and RX leads. This option is set at
the factory and provides normal power (-48V or -40V) on the
TX lead and battery return (BRTN) on the RX lead to power the
terminal. To implement it, install one jumper plug across the RX
and BRTN pins, and one across the PWR and TX pins, as shown
in Figure 17 "Jumper plug settings for normal power on the TX
and RX leads" (page
Nortel Communication Server 1000
ISDN Basic Rate Interface Installation and Commissioning
NN43001-318 01.02 Standard
Release 5.0 20 June 2007
63).