iPECS iPECS-MG - CO Line Boards; LCOB4;LCOB8;LCOB12 (Loop Start CO Line Interface Board); Pin Assignment; CMU4 (Call Metering Detection Unit)

iPECS-MG Quick Start Guide
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3.3 CO Line Boards
3.3.1 LCOB4/LCOB8/LCOB12 (Loop Start CO Line Interface Board)
The LCOB (Loop Start CO Interface Board) is a board for PSTN interface on iPECS-MG system. LCOB supports
Caller Identification (CID) detection, Polarity Reversal (PR) detection, Call Progress Tone (CPT) detection. But the
optional CMU4 board is needed in case of call metering service (50Hz, 12kHz, and 16kHz). And, the LCOB has one
Power Failure Transfer (PFT) circuit for 1st port.
The LCOB4/LCOB8/LCOB12 board can be installed on any universal slot.
Figure 3.3.1 LCOB12
3.3.1.1 Pin Assignment
LCOB 1st Port (supports PFT function)
CONNECTOR
PIN NUMBER
NO.
SIGNAL NAME
RJ45
1,2
PFT-T, PFT-R
3
Reserved
4,5
CO-T, CO-R
6,7,8
Reserved
NOTE: If User wants to use the PFT function, Pin# 1, 2 should be connected to a SLIB interface port.
LCOB Ports (except 1st port)
CONNECTOR
PIN NUMBER
NO.
SIGNAL NAME
RJ45
1,2,3 Reserved
4,5 CO-T, CO-R
6,7,8 Reserved
3.3.1.2 CMU4 (Call Metering detection Unit)
The CMU4 can be optionally mounted on LCOB4/LCOB8/LCOB12, and provides 50Hz, 12kHz and 16kHz Call
Metering detection function for 4 channels. So, Three CMU4s can be installed on LCOB12.