NDA-24296 CHAPTER 2
Page 93
Revision 1.0
PH-PC36
Multiplexer
PH-PC36
Multiplexer
1. General Function
The PH-PC36 (MUX) circuit card is an interface card for mounting line circuits and/or trunks. In between
the CPR and the Port Microprocessor (PM) of the line/trunk circuit, this circuit card provides an interface
for PM control and management by the CPU. Likewise in between the TSW and the line circuit/trunks, this
circuit card provides an interface for multiplexing/de-multiplexing of voice Pulse Code Modulation (PCM)
information and digital data information.
Figure 2-37 Location of PH-PC36 (MUX) Card in the 1 IMG System
MUX
MUX
MUX
CPR
GT
LC/TRK
PM
LC/TRK
PM
LC/TRK
PM
LC/TRK
PM
MUX
TSW/INT/PLO
PCM HW
PM BUS
PM BUS
PM BUS
PM BUS
PCM HW
PCM HW
PCM HW