Nortel Networks Option 11C Mini Manuale Utente
Page 185 of 332
Option 11C Mini
Planning and Installation Guide
190
Chapter 14 — Installing Power Failure
Transfer Units
Transfer Units
This chapter describes how to install a QUA6 Power Failure Transfer Unit
(PFTU). This chapter contains the following procedure:
(PFTU). This chapter contains the following procedure:
•
You can connect PFTUs to the Main Chassis.
Note: The QUA6 PFTU operates with loop start and ground start CO
trunks. With ground start trunks, the associated telephone set must have
a ground start button.
trunks. With ground start trunks, the associated telephone set must have
a ground start button.
If you require power failure backup as a fail safe for this system, use analog
trunks. A PFTU does not support digital trunks.
trunks. A PFTU does not support digital trunks.
Installing the PFTU
Refer to the equipment layout plan to determine where to locate the PFTU.
See “Chapter 4 — Creating an equipment layout plan and a card slot
assignment plan” on page 69.
See “Chapter 4 — Creating an equipment layout plan and a card slot
assignment plan” on page 69.
Procedure 23
Installing the PFTU
Installing the PFTU
1
Install the PFTU on the wall near the system cross-connect
terminal. Fasten the PFTU in position
terminal. Fasten the PFTU in position
with four screws.
2
Install an NE-A25B-type 25-pair cable from connector J1 on the
faceplate of the PFTU to its assigned location at the
cross-connect terminal.
faceplate of the PFTU to its assigned location at the
cross-connect terminal.
3
Label the pairs of the J1 cable on the cross-connect terminal
block as shown in Figure 56 on page 186.
block as shown in Figure 56 on page 186.