LG ipLDK-60 - Page 12

ipLDK-60 SERVICE MANUAL
DIGITAL KEY TELEPHONE SYSTEM
8
EXPANSION KSU
ITEM OPTION BOARD DESCRIPTION
KSU Key Service Unit
PSU Power Supply Unit
EMBU Expansion Main Board Unit (3 CO and 8 Hybrid)
CO and Extension
Boards
CO Line and DKT/SLT interface Boards
(CHB308, CSB316, SLIB8)
Main Board
Other Boards CMU12PR, CMU50PR can be installed
3 CO Lines and 8 Hybrid Interface Board
CMU50PR Call Metering (50Hz) and Polarity Reversal Detection Unit
(3 channels)
CHB308
CMU12PR Call Metering (12KHz or 16KHz) and Polarity Reversal
Detection Unit (3 channels)
3 CO Lines and 16 SLT Interface Board
CMU50PR Call Metering (50 Hz) and Polarity Reversal Detection Unit
(3 channels)
CMU12PR Call Metering (12KHz or 16KHz) and Polarity Reversal
Detection Unit (3 channels)
CSB316
SLU8 8 SLT Interface Unit. Installed on CSB316 as a default.
CO Line and
Extension
Boards
SLIB8 8 SLT Interface Board
CMU50PR Call Metering (50Hz) and Polarity Reversal Detection Unit
(3 channels)
Other Boards
CMU12PR Call Metering (12KHz or 16KHz) and Polarity Reversal
Detection Unit (3 channels)