Line Control - NEC Univerge SV8500 Operation And Maintenance Manual

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.
MUX
MUX
TDSW/INT
TSW
Control Signal
SV8500 Server
Controlling LC/ELC Circuit Cards and Speech Path
LC/ELC
Control Signal
LC
PM
Speech Path
LC
LC/ELC
Control Signal
LC
PM
Speech Path
LC
CHAPTER 5 Operation Procedure for System with PIR
LT Cable
LT Cable
LT Cable
LT Cable
Symbols:
: Circuit Card
: Control Signal
– 598 –
MDF
Ordinary Telephone/
Dterm
Ordinary Telephone/
Dterm
: Speech Path