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3-4
Cisco ONS 15327 Troubleshooting Guide, R3.4
April 2003
Chapter 3 Replace Hardware
Inspect, Clean, and Replace the Reusable Air Filter
Step 1 Move any cables that are routed in front of the fan-tray assembly and air filter so you can easily slide the
filter out, as shown in Figure 3-3 on page 3-4.
Step 2 Grasp the metal tab at the edge of the filter and slide the filter out of the bracket while being careful not
to dislodge any dust that may have collected on the filter.
Figure 3-3 Removing the Reusable Fan-Tray Air Filter
Step 3 Visually inspect the filter material for dirt and dust.
Step 4 If the reusable air filter contains a concentration of dirt and dust, 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 5 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 Cleaning should take place outside the operating environment to avoid releasing dirt and dust
near the equipment.
Warning
Do not put a damp filter back in the ONS 15327.
Step 6 Slide the clean air filter back into the shelf. (See Figure 3-4 on page 3-5.)
1
2
3
4
E10/100-T
F
A
IL
A
C
T
S
F
1
2
3
4
E10/100-T
F
A
I
L
A
C
T
S
F
OC12/STM-4
IR 1310
F
A
IL
A
C
T
S
F
OC48/STM-16
IR 1310
F
A
IL
A
C
T
S
F
ACO
LAN
CRAFT
XTC-28-3
LAMP
TEST
FAI L
ACT/STBY
SYNC
ACO
DS3 SF
DS1 SF
PWR A
PWR B
CRIT
MAJ
MIN
REM
ACO
LAN
CRAFT
XTC-28-3
LAMP
TEST
FAI L
ACT/STBY
SYNC
ACO
DS3 SF
DS1 SF
PWR A
PWR B
CRIT
MAJ
MIN
REM
BITS
MIC B
ALARM
DS1 (15-28)
-48VRET
PWR B
Rx 1
Rx 2
Rx 3
BITS
MIC A
ALARM
DS1 (15-28)
-48V
RET
PWR B
Tx 1
Tx 2
Tx 3
78962