NDA-24296 CHAPTER 2
Page 127
Revision 1.0
PH-SW12
Time Division Switch
PH-SW12
Time Division Switch
1. General Function
This circuit card provides the Time Division Switch (TSW) and INT function for the system. Each TSW
card is capable of 8192 × 2048 Time Slot (TS) switching for an Interface Module Group (IMG). Four cards
allow 8192 × 8192 TS switching for the 4 IMG configuration.
The INT is an intermediate circuit of the CPR which controls and administers the Port Microprocessor
(PM) for line/trunk circuit cards.
Figure 2-58 TSW Configuration
TSW
(8Kx2K)
TSW
(8Kx2K)
TSW
(8Kx2K)
TSW
(8Kx2K)
IMG0
IMG0
IMG1
IMG1
IMG2
IMG2
IMG3
IMG3
[TSW configuration]
[INT configuration]
CPU1(LP) ISAGT1 GT1
CPU0(LP) ISAGT0 GT0
TSW1
(INT)
TSW0
(INT)
MUX01
MUX30
MUX31
MUX00
LC/TRK(PM)
LC/TRK(PM)
ISA BUS I/O BUS
ISA BUS I/O BUS
System #1
System #0
ACT
STBY
STBY
STBY
STBY
ACT ACT
ACT
PM BUS
PM BUS