Interface cards descriptions
37
SmartNode 1000 and 2000 Series Getting Started Guide
1 • General Information
Operating modes
All four ports can be used in NET or USR modes.
•
A NET port is connected to an ISDN terminal, i.e. a telephone or a PBX.
•
A USR port performs user side signaling and the pin out corresponds to an ISDN terminal.
S-Bus line power
Some ISDN terminals are powered through the S-Bus. This is usually the case for ISDN phones but not for
PBXs. If you want to connect such a terminal directly to a port of the IC-4BRV-8V, you must install a PM-
48V-INT (or PM-40V-INT) power supply module. Two steps are required to provide S-Bus line power:
•
Install an internal Line Power Module PM-48V-INT (or PM-40V-INT). This is described in section
“Internal PM-48V-INT or PM-40V-INT line power module installation”
on page 116.
•
Configure the IC-4BRV-8V card’s jumper settings. This procedure is described in the following paragraphs.
Line power jumper settings
A set of jumper pins determines how power is supplied to the BRI ports. The jumper pin block is located on
the IC-4BRV-8V interface card underside (see
figure 17
on page 38).
Power output on all ports is configurable. BRI ports of the IC-
4BRV-8V configured in USR mode
must
not
supply line-power.
Set the jumpers so that line-power is only supplied on those ports
configured in NET mode, i.e. where you want to connect line-
powered ISDN terminals.
The jumpers are not accessible when the IC-4BRV-8V card is
installed, you must set the jumpers before installing the card in
the SmartNode 2000 Series device.
CAUTION
IMPORTANT
