TM 9-2350-261-34
NOTE
Use same method to check J139 as on
p a g e 2 . 1 - 1 9 . U s e W i r i n g D i a g r am
(see page 2.1-21).
1. Remove cable W126, plug P108 (1) from PATCH
PANEL BOX A10, jack J139 (2).
2. Measure resistance between 12 pairs of posts marked
ROADSIDE DATA PANEL (3) and sockets on jack
J139 (2) as follows:
Post 1 (Bot) to socket A
Post 1 (Top) to socket B
Post 2 (Bot) to socket C
Post 2 (Top) to socket D
Post 3 (Bot) to socket E
Post 3 (Top) to socket F
Post 4 (Bot) to socket G
Post 4 (Top) to socket H
Post 5 (Bot) to socket J
Post 5 (Top) to socket K
Post 6 (Bot) to socket L
Post 6 (Top) to socket M
Post 7 (Bot) to socket N
Post 7 (Top) to socket P
Post 8 (Bot) to socket R
Post 8 (Top) to socket S
Post 9 (Bot) to socket T
Post 9 (Top) to socket U
Post 10 (Bot) to socket V
Post 10 (Top) to socket W
Post 11 (Bot) to socket X
Post 11 (Top) to socket Y
Post 12 (Bot) to socket Z
Post 12 (Top) to socket a
3. Does multimeter read 0 ohms for each measurement?
GO TO NEXT PAGE
1. Repair Patch Panel Box A10
(page 6-121).
2 . V e r i f y n o f a u l t s f o u n d .
Change 3
2.1-27
