Lgcm4 Installation - LG-Nortel ipecs Installation Manual

IPECS Release 5
Hardware Description & Installation
4.5.4

LGCM4 Installation

The LGCM4 may be installed anywhere except for slot 10 of the cabinet, or may be installed
anywhere in the Desk Mount Holder. The LGCM4 provides a gateway between standard PSTN
Loop Start Lines and other iPECS appliances. The LGCM4 can support four (4) PSTN Lines.
LEDs
In addition to the Power and LAN LEDs, the LGCM4 has four (4) green status LEDs and one (1)
red status LED. The four (4) green LEDs indicate that the individual PSTN Lines are busy (LED
On), idle (LED Off) or ringing (LED flashing). One (1) red LED indicates whether the CMU4 option
module is installed. If installed, the LED is On.
CMU (Call Metering Unit)
The LGCM4 supports call metering with installation of an optional CMU4 module. Three types of
module, based on protocol, are available CMU4-12PR, CMU4-16 and CMU4-50PR; see section
2.1.3.1. Each of the CU4 modules is for different regions as shown in the chart of section 2.1.3.1.
Before installing the CMU4 module, make sure that power is turned Off. Figure 4.5.4-1 shows the
procedure for installing a CMU4 module on the LGCM4. Check the connector numbers of the
CMU4 module prior to installation. Note that the connector numbers for the CMU4-12PR and 16
are the same while for the CMU4-50PR, the connector numbers are reversed.
CMU4-12PR & CMU4-16
LGCM4 Connector
CN8
CN9
CMU4-12PR or 16 Connector
CN1
CN2
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Issue 5.0