ipLDK-60 Hardware Description and Installation Manual
Issue 2
SYSTEM OVERVIEW
July, 2010
4
2.2 System Components
BASIC KSU
ITEM
OPTION
BOARD
DESCRIPTION
KSU
Key
Service
Unit
PSU
Power Supply Unit
Main Board
MBU
Main Board Unit (3CO, 1DKT and 7 Hybrid)
CO and Extension
Boards
CO Line and DKT/SLT interface boards (CHB308,
CSB316, SLIB8, E1HB8
，
PRHB8, T1/PRIHB and
VOIB)
Function Boards
VMIU, AAFU, MODU, CMU50PR, CMU12PR can
be installed
CO Line and
Extension
Boards
CHB308
3CO Lines and 8 Hybrid Interface Board
CMU50PR
Call Metering (50Hz) and Polarity Reversal
Detection Unit (3 channels)
CMU12PR
Call Metering (12KHz or 16KHz) and Polarity
Reversal Detection Unit (3 channels)
CSB316
3 CO Lines and 16 SLT Interface Board
CMU50PR
Call Metering (50Hz) and Polarity Reversal
Detection Unit (3 channels)
CMU12PR
Call Metering (12KHz or 16KHz) and Polarity
Reversal Detection Unit (3 channels)
SLU8
8 SLT Interface Unit Installed on CSB316 as a
default
SLIB8
8 SLT Interface Board
VOIB
Voice over IP Board (4ch)
VOIU
Voice over IP unit (4ch)
E1HB8
E1R2 and 8 Hybrid Interface Board
SLU8
8 SLT Interface Unit Installed on E1HB8 as a
default
PRHB8
PRI and 8 Hybrid Interface Board
SLU8
8 SLT Interface Unit Installed on PRHB8 as a
default
T1/PRIHB
T1/PRI for N.A. and 8 Hybrid Interface Board
Function
Boards
WDIB4
4 Base Wireless Terminal Interface Board
VMIU
Voice Mail Interface Unit, 4 channels
AAFU
Auto Attendant Function Unit, 4 channels
MODU
MODEM
unit
(33Kbps)
CMU50PR
Call Meeting (50Hz) and Polarity Reversal
Detection Unit (3 channels)
CMU12PR
Call Metering (12KHz or 16KHz) and Polarity
Reversal Detection Unit (3 channels)
