Nortel North American DMS-100 Instruction Manual page 445

-8 Trouble locating and clearing procedures
Testing the operation of ANI and COIN voltages
6
297-8021-544 Standard 16.01 May 2003
Note 1: Due to daisy chaining of ring generator outputs, problems with
lower LCM of LCE or CLCE may be caused by problems on upper LCM
backplane (pins 47A, 47B, 48A, & 48B) of unit 0 or unit 1.
Note 2: Asterisks for all test results (****) indicates the COVREX test
failed as incomplete. Essentially, the test started, but never made it to the
point where it collected voltage readings. Incomplete tests can occur for a
number of reasons such as the test equipment (LTU or MTU) was already
being used by another process or incorrect data fill, etc. In the event this
occurs, simply re-run the test.
Key
F = Fail
LD = Line Drawer
LC = Line Card
BP = Backplane
RG = Ring Generator
TAC = Test Access
BIC = Bus Interface Card (NT6X54AA)
BP pins are all associated with 6X53 BP pins.
U0 = Unit 0 Backplane Pins
U1 = Unit 1 Backplane Pins
Ring Gen
Signal RLCM/OPM/OPAC
========== =============
-52VDC
+52VDC
-130VDC
+130VDC
You have completed this procedure.
(end)
PINS
LCE
===
53A 29
55A 32
56B 34
58B 36