Paradyne Compshere 3000 Series Installation Manual page 25

Fan Module
Power
Connector
Power
Transformer
Unit
NOTE
The power transformer unit
output wires are terminated with
plastic connectors. The power
transformer unit must be installed
with the output wires protruding
through the backplane carrier.
3. At the rear of the carrier, use the larger
screwdriver to tighten the two captive screws that
fasten the power transformer unit to the carrier.
P20 P19
P26 P25 P24
J2 P22 J1
3000-A2-GA31-D0
Transformer
Output
Wires and
Connectors
495-14803
P23
P21
Captive
Screws
496-14894
Installing the Carrier and Assembly Components
4. Plug the power transformer output connectors into
the P19 and P20 connectors on the backplane and
latch them.
The power cord contains a
3-wire grounding-type plug
which has a grounding pin.
This is a safety feature.
Grounding of the carrier is
vital to ensure safe operation.
Do not defeat the purpose of
the grounding plug by
modifying it or by using an
adapter.
Prior to installation, use an
outlet tester or voltmeter to
check the ac receptacle for
earth ground. If the power
source does not provide a
ground connection, consult an
electrician to determine
another method of grounding
the carrier before proceeding
with the installation.
AC
Receptacle
P26
J2
5. Plug the appropriate end of the power cord into
the ac receptacle on the carrier.
6. Attach the ferrite choke on the ac power
transformer cord as close as possible to the
connector.
July 1999
CAUTION
P20 P19
P20 P19
P25 P24 P23
P22 J1 P21
496-14804-01
3-9