LG Electronics GDK-20W, LKD-8DS installation manual System Components, Lcobesp

GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM

2.4 SYSTEM COMPONENTS

Item	Slot	Circuit	Description	Remark
	Position	Number
GDK-20W KSU(MBU)			4DKT + 2SLT + 1 WTI
DVIB	1	2	Digital Voice Interface
DVIBE	1	2	Digital Voice Interface +
			DTMF Receiver 2EA
LCOB4	2,3	4	Loop Start CO Interface	PRU4, PRCPTU
LCOBA	2,3	2	Loop Start CO Interface	PRU4, PRCPTU
PRU4	LCOB4/	4	Polarity Detect 4 ports
	LCOBA
PRCPTU4	LCOB4/	4	Polarity Detect 4 ports +
	LCOBA		Call Progress Tone Detect 4 ports
LCOB	2,3	2	Loop Start CO Interface
LCOBE(SP)	2,3	2	Loop Start CO Interface
			(Call Progress Tone Detect 2 ports)
LCOBE(w/PRU)	2,3	2	Loop Start CO Interface
			(Polarity Detect 2 ports)
LCOB2	2,3	4	Loop Start CO Interface
STIB	2,3	1(2B)	ISDN 1So/To Interface
STIB2	2,3	2(4B)	ISDN 1So/To + 1To Interface
PMU	4		Program Module Unit
WTIB	5	2	Wireless Terminal Interface(2 WTI)
MFB	6		Battery Changing, RS-232C, Auto FAX
DVEU	DVIB/		Voice Memory Expansion Unit
	DVIBE

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