Installation Of The Co Line Board; Lcob (Cid Loop Start Co Line Interface Board) - LG-Nortel IPLDK 20 Installation Manual

IP LDK-20 Installation Manual

3.3 Installation of the CO Line Board

BOARD PORT
2 ports
LCOB
(4 LCO)
2 ports
STIB
(2 BRI)
2 ports
CBIB
( 1 BRI+2 LCO)

3.3.1 LCOB (CID Loop Start CO line Interface Board)

Description
The LCOB can be installed on the LCOB/STIB/CBIB connector, and provides 4 CO/PBX Loop Start CO Line
interfaces that support Pulse/DTMF signaling. Each Interface contains ring and loop current detection circuits, A/D
and D/A conversions, and pulse signaling circuitry.
LCOB can be optionally equipped with add-on boards: CPCU4 (FSK CID, Polarity Reversal & Call Progress Tone
detection Unit 4) to detect FSK signal for the incoming Caller-ID, polarity reversal and call progress tone; PRCPTU4
(Polarity Reversal & Call Progress Tone detection Unit 4) to monitor polarity reversal and call progress tone; or PRU4
(Polarity Reversal detection Unit 4) to monitor polarity reversal.
※ NOTE
The PRU4, PRCPTU4 and CPCU4 can not be mounted on the LCOB at the same time. Select the
appropriate board for your application to install and use.
CONNECTOR
TYPE
RJ45 Loop Start CO Line Interface
RJ45 ISDN Basic Rate Interface (2B+D)
ISDN Basic Rate Interface (2B+D)
RJ45
+ Loop Start CO Line Interface
PRU4
PRCPTU4
CPCU4
Figure 3.3.1 LCOB
29
DESCRIPTION
Board Installation
CABLE REMARK
2 wire
Switched
4 wire
T or S
4 wire (Port 1) T mode
2 wire (Port 2) only.