Table 7. Replacement Item Part Numbers; Figure 14. Surge Arrestor Board; Maintenance - ADTRAN T200 H2TU-R Installation And Maintenance Manual
High capacity cabinet
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6. Disconnect the door switch JP2 connector on the
fan board by carefully pulling the connector off
the header. DO NOT PULL ON WIRES.
7. Take an insulated ball-clip or alligator-clip and
short across the two exposed door switch JP2
connector pins at the fan board.
8. If the Door LED goes Off, the door switch is
defective.
9. Follow the door switch replacement Instructions
to replace the defective door switch.
NOTE
Refer to the Fan Powering Unit I&M Practice:
61150091L1-5, for additional details on the
FPU.
4. MAINTENANCE
Maintenance consists of replacement of surge arrester
gas tubes, door gaskets, or other replaceable items.
Fan board repairs should not be attempted in the field.
Repair services are obtained by returning the defective
unit to ADTRAN Customer Service.
Refer to Table 7 for a list of replacement item part
numbers.
Table 7. Replacement Item Part Numbers
D
e
s
c
i r
p
i t
o
n
D
s e
c i
c
a
n
, t
8
O
. z
B
a
g
G
s a
T
u
b
s e
G
s a
T
u
b
e
n I
s
r e
/ t
E
t x
a r
t c
P
i r
m
a
y r
F
a
n
B
o
a
d r
S
e
c
o
n
d
a
y r
F
a
n
B
o
a
d r
P
a
d
M
o
u
t n
K
t i
P
o
e l
M
o
u
t n
K
t i
C
a
b
e l
S
u t
b
M
o
u
t n
K
t i
0 (
D
o
r o
G
s a
k
t e
R
e
p
a
r i
K
t i
D
o
r o
S
w
i
c t
h
R
e
p
a
r i
K
t i
Desiccant Renewal
Each cabinet is shipped with two moisture absorbing
desiccant bags inside the cabinet. To ensure continued
moisture absorption the desiccant must be renewed
periodically, depending on the environment.
1 8
P
a
t r
N
u
m
b
3
1
6
8
0
0
1
3
1
8
6
0
0
1
T
o
l o
3
2
6
9
0
4
2
2
1
5
0
0
9
0
5 -
2
1
5
0
0
9
0
6 -
2
1
5
0
0
9
0
8 -
2
1
5
0
0
9
0
9 -
8 .
6
1 -
2 .
6
) "
2
1
5
0
0
9
0
1 -
5
2
1
5
0
0
9
0
1 -
6
2
1
5
0
0
9
0
1 -
7
Section 61150090L1-5A, Issue 1
Surge Arrester Replacement
Each slot in the T200/T400 shelf has four associated
surge arrestor gas tubes (Figure 14) for surge
protection. Surge protection is provided by
replaceable gas surge arrestor tubes. Perform the
following procedure to replace gas tubes:
Prevent electrical shock during maintenance
by removing the appropriate slot powering
modules and tagging out to prevent
inadvertent insertion.
1. At the CO, remove the appropriate power
module to deenergize the associated slot at the
cabinet.
2. Grasp one gas tube and remove it using the gas
tube pliers supplied with the cabinet, see
Figure 15.
3. Insert a replacement gas tube in the same
position.
Slot 12,
Connection
to Cable
P12
P11
P9
P10
e
r
Slot 12,
Gas Tubes
Figure 14. Surge Arrestor Board
Figure 15. Surge Arrestor Gas Tube
WARNING
Slot 1,
Connection
to Cable
P8
P7
P6
P5
P4
P3
Typical removal
or replacement
shown.
Replacement
61150090L1-5A
P2
P1
Slot 1,
Gas Tubes
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