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)