30
IC-4BRV Hardware Description
•
Install an internal Line Power Module PM-48V-int (or PM-38V-int). This is described in
Chapter 9.3, “Mounting the Internal 48V (or 38V) Line Power Module”, on page 40 of this
document.
•
Configure the IC-4BRV card’s jumper settings. This procedure is described in the following
paragraphs.
5.9
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 interface card underside. See the series of illustrations, which follow.
Warning:
When the Line Power Module is installed and operating, Ports 0 and 1 are always supplied
with 40V power. Power output on Ports 2 and 3 is configurable. You must not supply power to a
port configured in ’USR’ mode, i.e. connected to an ISDN NT. Supply power only to those ports
configured in ’NET’ mode where you want to connect line-powered terminals.
Note:
the jumpers are not accessible when the IC-4BRV card is installed: you must set the jumpers
before installing the card in the SN2x00.
5.9.1 Possible Jumper Settings for IC-4BRV and PM-48V-int (or PM-38V-int)
fitted in SmartNode SN2x00
•
No jumpers are set: this setting is used with Ports 2 & 3 configured in ’USR’ mode &
connected to NTs as shown in Figure 5-6.
Figure 5-6: No Jumpers Set
•
Upper four jumper pins bridged: this setting is used with Port 2 configured as Fallback and
connected to a NT as shown in Figure 5-7.
Hardware Installation Guide, Revision 3.11
