Field Service Procedure – Replacement PCU Kit, ST88, ST94 & ST144
Page
20
of
22
Document No
137738 Rev A
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Tel, Inc. This document may not be reproduced or distributed in any form without prior written
consent of Sea Tel, Inc.
15.
With
the
coax
switch
installed
install
the
replacement
PCU
to
the
equipment
frame
using
the
hardware
removed
in
step
12.
Ensure
the
screws
are
installed
with
both
the
washer
and
split
washer
and
that
Loctite
242
is
applied
to
the
threads.
Ensure
the
ground
point
is
connected
to
the
lower
left
hand
mounting
point.
16.
Reconnect
the
red
and
green
RG
‐
179
coax
cables
to
the
lower
mounting
bracket
17.
Reconnect
the
white
and
blue
RG
‐
179
coax
cables
to
the
coax
switches
as
per
the
labels
on
the
mounting
plate.
18.
Reconnect
the
D
‐
sub
connectors
using
a
2mm
flat
blade
screwdriver.
19.
Connect
the
GPS
antennas
RJ
‐
45
connector
to
the
replacement
PCU.
20.
Connect
the
blue
RG
‐
179
coax
cable
from
the
coax
switch
to
the
“L
‐
band”
port
on
the
400MHz
modem
connection.
21.
Connect
the
blue
RG
‐
179
coax
cable
from
the
rotary
joint
to
the
“rotary
joint”
port
on
the
400MHz
modem
connection.
Summary of Contents for ST144
Page 1: ......