NEC UNIVERGE SV8500 - Line Control

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CHAPTER 5 Operation Procedure for System with PIR
3.1.2 Line Control
Each line in a specific Line Circuit (LC/ELC) card is controlled by the PM in that line circuit card. The line
circuit cards are controlled from Telephony Server via the MUX. The following figure shows the control
route of line circuit cards.
Controlling LC/ELC Circuit Cards and Speech Path
LC
MUX
TDSW/INT
TSW
MDF
LT Cable
LT Cable
Control Signal
Speech Path
Control Signal
LC/ELC
Ordinary Telephone/
Ordinary Telephone/
Symbols:
: Circuit Card : Speech Path
: Control Signal
LC
PM
MUX
LC
LT Cable
LT Cable
Control Signal
Speech Path
LC/ELC
LC
PM
Dterm
Dterm
SV8500 Server