NEC UNIVERGE SV8500 - TSW Card Replacement Procedure

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CHAPTER 5 Operation Procedure for System with PIR
2.3.1 TSW Card Replacement Procedure
TSW circuit card is located in the slot numbers, ranging from 06 to 13 within the TSWR. Equipped with
the Time Division Switch (TSW) and Speech Path Controlling Interface (INT), the card’s main function
is to provide a maximum of 8192 u 2048 Time Slot (TS) switching for a designated single IMG. Because
a single TSW card only enables the TS switching associated with a single, individual IMG alone, note
that the fully expanded 4-IMG system requires a total of four TSW cards when it adopts a single
configuration, or as many as eight in the case of dual configuration. If your system adopts the latter’s
dual configuration, the card’s replacement procedures are as follows:
Figure 5-4 provides the system block diagram centering on the TSW cards. If the ACT/STBY of TSW
is changed over, that of DLKC and MUX in the same switching block are also totally changed over.
Figure 5-4 System Block Diagram (TSW and Other Speech Path)
EMA
EXB0
EXB1
CPU0
CPU1
IMG 0
TSW I/O BUS
TSW I/O BUS
TSW 00
GT 0
GT 1
TSW 10
TSW 01
TSW 11
TSW 02
TSW 12
TSW 03
TSW 13
DLKC 1
DLKC 0
PLO 1
PLO 0
PCM HW PM BUS PCM HW PM BUS PCM HW PM BUS PCM HW PM BUS
MUX MUX MUX MUX
Line/Trunk PM
IMG 1
PCM HW PM BUS PCM HW PM BUS PCM HW PM BUS PCM HW PM BUS
MUX MUX MUX MUX
Line/Trunk PM
IMG 2
PCM HW PM BUS PCM HW PM BUS PCM HW PM BUS PCM HW PM BUS
MUX MUX MUX MUX
Line/Trunk PM
IMG 3
PCM HW PM BUS PCM HW PM BUS PCM HW PM BUS PCM HW PM BUS
MUX MUX MUX MUX
Line/Trunk PM
[PIR]
[SV8500 Server]
[TSWR]