Avaya DEFINITY Server R Manual page 505

Installing an Integrated Channel Service Unit (ICSU)
Module
Installing the 120A3A CSU
See Figure 7-17.
19 18 17 16 15 14 13
Figure Notes
1. Rear of carrier containing DS1 circuit pack
2. 120A3A CSU
3. 4-pair cord to network interface (H700-383)
Figure 7-17. 120A3A Channel Service Unit Module
!
CAUTION:
Do not plug the 120A3A into any circuit pack other than a TN464F or
TN767E (or later release/vintage) or TN2464 or Tn2313. Do not connect the
120A3A to any interface other than a 700A DS1 loopback jack.
Be sure the DS1 circuit pack is set for 24-channel operation (1.544 Mbps).
The 120A3A does not operate with the 32-channel interface. A switch on the
circuit pack or administration sets this option.
!
CAUTION:
Always wear an anti-static wrist strap when installing a 120A3A module. Do
not touch the external alarm cable when it is connected to the 120A3A.
Static discharge can damage connector terminals and relays.
555-233-115
12 11 10 09 08 07 06 05 04 03 02 01
4. DW8A-DE 4-pair cord to alarm contacts (optional)
5. To 25-pair connector on rear of carrier containing DS1
AUX
icsupic RBP 032896
circuit pack
Issue 7 November 2003
7-95