Figure 14-1 Removing The Reusable Fan-Tray Air Filter - Cisco ONS 15327 Procedure Manual

Chapter 14 Maintain the Node
Verify that you are replacing a reusable air filter. The reusable filter is made of a gray, open-cell,
Step 1
polyurethane foam that is specially coated to provide fire and fungi resistance. NEBS 3E and later
versions of the ONS 15327 use a reusable air filter.
Move any cables that are routed in front of the fan-tray assembly and air filter so you can easily slide the
Step 2
filter out
Grasp the metal tab at the edge of the filter and slide the filter out of the bracket while being careful not
Step 3
to dislodge any dust that might have collected on the filter.

Figure 14-1 Removing the Reusable Fan-Tray Air Filter

Step 4 Visually inspect the filter material for dirt and dust.
Step 5 If the reusable air filter contains a concentration of dirt and dust, either vacuum or wash the air filter.
Prior to washing the air filter, replace the dirty air filter with a spare clean air filter (spare filters should
be kept in stock).
Step 6 Wash the dirty air filter under a faucet with a light detergent. After washing the air filter, allow it to
completely air dry for at least eight hours before reusing.
Note
Warning Do not put a damp filter back in the ONS 15327.
Slide the clean air filter back into the shelf
Step 7
March 2003
(Figure 14-1).
FAI L
ACT
SF
FAI L
ACT
SF
1
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FAI L
Rx 1
ACT
Rx 2
Rx 3
SF
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Tx 3
Cleaning should take place outside the operating environment to avoid releasing dirt and dust
near the equipment.
LA N
CR AF T
AC O
FA IL
DS 3 SF
LA MP
AC T/S TB
CR IT
Y
TE ST DS 1 SF
SY NC
MA J
PW R A
AC O
MIN
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RE M
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CR AF T
AC O
FA IL
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LA MP
AC T/S TB
CR IT
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TE ST DS 1 SF
SY NC MA J
PW R A
AC O MIN
PW R B
RE M
BIT S -48 V RE T
AL AR M
DS 1 (15 -28
)
PW R B
-48 V RE T
BIT S
AL AR M
DS 1 (15 -28
)
PW R B
(Figure 14-2).
Cisco ONS 15327 Procedure Guide, R4.0
NTP-B107 Inspect and Maintain the Air Filter
14-3