LG Electronics IP LDK-20 Installation of the CO Line Board, Lcob, PRU4 PRCPTU4 CPCU4

IP LDK-20 Installation Manual Board Installation

3.3 Installation of the CO Line Board

BOARD

PORT

CONNECTOR

TYPE

DESCRIPTION

CABLE

REMARK

LCOB	2 ports	RJ45	Loop Start CO Line Interface	2 wire
	(4 LCO)
STIB	2 ports	RJ45	ISDN Basic Rate Interface (2B+D)	4 wire	Switched
	(2 BRI)				T or S
CBIB	2 ports	RJ45	ISDN Basic Rate Interface (2B+D)	4 wire (Port 1)	T mode
	( 1 BRI+2 LCO)		+ Loop Start CO Line Interface	2 wire (Port 2)	only.

3.3.1LCOB (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.

PRU4

PRCPTU4

CPCU4

Figure 3.3.1 LCOB

※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.

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