System Components - LG IP LDK-20 Installation Manual

IP LDK-20 Installation Manual

1.3 System Components

ITEM
KSU
PSU
MBUB
Main
Board
LCOB
CO Line
CBIB
Boards
STIB
DTIB4
DTIB8
Extension
Boards SLIB4
SLIB8
VMIB
AAFB
Other
VMIBE
Boards
AAFBE
LANU
MODU
VOIM
Expansion
Modules
SLIM
DTIM
OPTION BOARD
Key Service Unit
Power Supply Unit, 90W
Main Board Unit (2BRI, 4DKT, 2DKT/SLT, and 2SLT)
CO boards Central Office Line interface boards (LCOB, STIB, CBIB)
EXT boards Extension boards (DTIB, SLIB)
Loop Start CO Interface, 4 lines
PRU4 Polarity Reversal detection Unit
PRCPTU4 Polarity Reversal & Call Progress Tone detection Unit
Caller-ID(FSK), Polarity Reversal & Call Progress Tone
CPCU4
detection Unit
Loop Start CO Interface, 2 lines
Basic Rate Interface Board (T mode only), 1 line (2 channels)
PRU2 Polarity Reversal detection Unit
PRCPTU2 Polarity Reversal & Call Progress Tone detection Unit
Caller-ID(FSK), Polarity Reversal & Call Progress Tone
CPCU2
detection Unit
ISDN Basic Rate (S/T) Interface Board, 2 lines (4 channels)
Digital Terminal Interface Board, 4 ports
Digital Terminal Interface Board, 8 ports
SLT Interface Board, 4ports
SLT Interface Board, 8ports
Voice Mail Interface Board, 3 channels
Auto Attendant Function Board, 2 channels
Voice Mail Interface Board Enhanced, 4 channels
Auto Attendant Function Board Enhanced, 3 channels
LAN interface Unit (10Mbase-T only)
MODEM unit (33Kbps)
Voice over Internet protocol interface module (4 channels)
VOIU Voice over Internet protocol interface unit (4 channels)
SLT Interface module, 8 ports
Digital Terminal Interface module, 8 ports
5
DESCRIPTION
Introduction