Tasks
Maintenance
Routine
Units
Cooling
and
Power
Processor
Verify
cabinet.
processor
the
in
LEDs
function
switch
power
the
Test
3.
CABINET
PROCESSOR
IN
LEDs
FUNCTION
SWITCH
POWER
TEST
PROCEDURE:
the
operate
20-2,
Table
in
listed
packs
circuit
the
of
each
At
3.1.
ACO-T
switch.
Location
Switch
Associated
and
Units
Power
20-2.
Table
Point
Test
Switch
Power
Power
Notes
Location
Cabinet
Pack)
(Circuit
Unit
28-060
TN1821
0
CU
53-060
TN1821
1
CU
28-178
UN373/UN580
0
DFC
53-178
UN373/UN580
1
DFC
19-080
TN1820
0
IOP
45-080
TN1820
1
IOP
11-026
TN1820
2
IOP
62-026
TN1820
3
IOP
28-162
UN375
0
MHD
53-162
UN375
1
MHD
19-170
UN375
2
MHD
45-170
UN375
3
MHD
MHD
a*
†
UN375
19-186
UN376
0
DAT
1
DAT
UN376
†
Where
*
a
3.
above
number(s)
member
=
application.
by
specified
Position
†
pack?
circuit
the
on
lighted
LEDs
all
Are
3.2.
If yes
Step
to
go
,
3.4.
If no
Step
to
continue
,
3.3.
254-303-102,
to
refer
details,
For
pack.
circuit
faulty
the
Replace
3.3.
3B21D
Tasks
Clearing
Trouble
Computer
Step
repeat
then
and
,
3.1
this
in
procedure.
1999
April
3
Issue
254-303-101
20-5
Summary of Contents for Lucent Technologies 3B21D
Page 1: ...Computer 3B21D Tasks Maintenance Routine 254 303 101 3 Issue 1999 April ...
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