ADC Telecommunications Inc. DVLRCSSMR Benutzerhandbuch
ADCP-75-134 • Issue A • April 2002 • Section 5: Maintenance
Page 5-20
©
©
2002, ADC Telecommunications, Inc.
Figure 5-7. LPA Fan Removal and Replacement
6. Carefully
withdraw the fan assembly from the LPA until the wiring harness is exposed and
the
RJ-45 wiring harness connector is accessible.
7. Disconnect
the fan wiring harness connector from the LPA and lift the fan assembly away
from
the LPA.
8. Place
a small amount of anti-corrosion gel on the connector of the replacement fan
assembly.
9. Orient
the fan assembly so the air-flow arrow points into the LPA.
10. Connect
the fan assembly wiring harness connector to the LPA internal connector.
11. Secure
the fan assembly to the LPA using the four retainers removed in step 5.
12. Replace
the rear fan assembly using the same procedure covered in steps 5 through 11
except
orient the rear fan so the air-flow arrow is pointing away from the LPA.
13. When
both fan assemblies have been replaced, re-install the LPA in the cabinet.
14. Place
the STM On/Off switch in the ON position (press I) and verify that both fans operate
properly.
The front fan should draw air into the LPA and the rear fan should blow air out of
the
LPA.
15. Notify
the NOC or alarm monitoring system operator that the system is going back online.
16994-A
PULL ON RETAINERS
TO REMOVE FAN