ARIA SOHO IP Hardware Description and Installation Manual
Issue 1
SYSTEM OVERVIEW
December, 2008
7
2.2 System Components
BASIC KSU
ITEM
OPTION BOARD
DESCRIPTION
KSU
Key
Service
Unit
PSU
Power Supply Unit
MBU
Main Board Unit (3CO, 1DKT and 7 Hybrid)
CO and
Extension Boards
CO Line and DKT/SLT interface boards
(CHB308, CSB316, SLIB8, PRHB8 and VOIB)
Main Board
Other Boards
VMIU, AAFU, MODU, CMU50PR, CMU12PR can be installed
3CO 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 (50Hz) 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
SLIB8
8 SLT Interface Board
Voice over IP Board (4ch)
VOIB
VOIU
Voice over IP unit (4ch)
PRI and 8 Hybrid Interface Board
CO Line and
Extension
Boards
PRHB8
SLU8
8 SLT Interface Unit Installed on PRHB8 as a default
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)
Other Boards
CMU12PR
Call Metering (12KHz or 16KHz) and Polarity Reversal
Detection Unit (3 channels)