Line Power Module Installation
41
9.4
Completing the Installation
Once you have installed the 48V (or 38V) Line Power Module and set the jumper pins you can
conclude the final steps as described in Table 9-2.
Step
Description
Step 1
Install the IC-4BRV and/or IC-4FXS card in its expansion slot: see Chapter 8, “Interface
Card Installation”, of this document.
Step 2
Close the case and insert the mains power supply lead.
Step 3
Insert the network cables and observe the LED indications: see Chapter 11, “Led
Indications”. Test the correct functioning of the connections.
Table 9-2: Final Steps to Mount an Internal Line Power Module
The maximum total power consumption of all ISDN devices connected to internally powered S0
ports is limited to 30W. If your connected devices need more power switch off the internal power
connection for some ports by removing the corresponding jumpers, and use the external Phantom
Power Supply (PM-BRI-ext) unit on these ports The external Phantom Power Supply and its
connection is described below. Jumper settings are described in Chapter 5.9, “Line Power Jumper
Settings”.
9.5
External S-Bus Power Supply
Many ISDN telephone handsets require that 40VDC power be supplied via the S-Bus connection. In
other words, they have no separate or built-in power supply. In general point-to-multipoint ISDN
BRI NTs supply line power to the S-Bus. Point-to-point NTs connected to a PBX in general do not
supply line power.
The SmartNode 1000 series does not supply S-Bus line power on the BRI ports. There are two options
to provide S-Bus line power. If one of the BRI ports is connected to an ISDN NT, the power supplied
by the NT is fed trough to the other BRI port.
If line power s not available from the NT, but required for connected terminals, the PM-BRI-ext S-Bus
phantom power supply can be used.
9.5.1 PM-BRI-ext S-Bus 40V Power Supply
Item:
Phantom Power Supply; PM-BRI-ext
Part Number:
50-0003
Voltage Specifications:
Input 230VAC, Output 40VDC
Caution:
The PM-BRI-ext power supply unit is equipped with a transformer that is specially
designed for S-Bus line power. The use of a general purpose DC power transformer may cause
equipment damage.
Warning:
if you use a phantom power supply other than that supplied by Inalp Networks AG, you
must ensure that it conforms to ITU I.430 Section 9.7.3.2.2. which specifies that the maximum current
delivered shall not exceed 200mA.
9.5.2 Installation
Options
Hardware Installation Guide, Revision 3.11
