NDA-24296 CHAPTER 2
Page 127
Revision 1.0
PH-SW12
Time Division Switch

PH-SW12

Time Divisio n 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 T i me Slot ( TS) s witching for an I nterf ace M odule Group ( IMG). F our car ds

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