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ISDN Basic Rate Interface Installation and Commissioning
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
and RX leads
on page 59.
Figure 17: Jumper plug settings for normal power on the TX and RX leads
Figure 17: Jumper plug settings for normal power on the TX
Installation procedures
March 2011
59
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