S-DBS Installation Instructions
v1.0
Section 300
Issue 1 August 1990
.f-=.
!
POWER FAILURE UNIT
(continued)
2. Connecting the Power Failure Unit (PFU)
(See Figure 15 on page 27)
1) Use the modular plugs to connect each trunk
line from the CO/PBX to the ‘FROM COL (COLA to D)”
jacks on the PFU. Up to four trunk lines can
be Connected to the PFU. B
2) Connect the trunk lines
from the TO
COL (KSU)”
jacks on the PFU to the “COL” port on the main
unit by uslng
- __-_- --.--- __-
-----.
th e modular plugs.
-
3) Connect the EXT lines from the main unit to the
‘FROM SLT-LC (KSU)” jacks.
8
4) Connect each SLT line to the 7YO SLT” jacks on
the PFU.
5) Connect two wires from the.power supply terminals
on the PFU parallel to any EXT port.
6) Gather the wires back into the PFU and bring out
through the underside of the PFU and attach the wires
by clamp plate. (See (e) on Figure 15)
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