Dc power supply and fan operability test, Figure 20, Reinstalling the pem safety cover – Force10 Networks Force10 TeraScale E-Series E1200i User Manual
Page 47
Installing and Maintaining the E1200i System
47
DC Power Supply and Fan Operability Test
After you have completed the fan tray and PEM installation, verify their operability by supplying power to
the chassis and verifying the status LEDs.
Before you begin this power test, inspect your equipment rack and chassis. Verify that:
•
Each PEM is properly installed and grounded.
•
The safety covers are installed on each PEM.
8.
Replace the safety cover and tighten the captive screw with a #2 Phillips screwdriver (
Figure 20 Reinstalling the PEM Safety Cover
9.
Check that the over-current protector (located on the PEM front panel) is in the OFF position.
Energize the remote power source. The Voltage LED should be green. If it is amber, the -48 VDC and
Return cables are connected incorrectly or are reversed.
10.
Go to
DC Power Supply and Fan Operability Test
, next, to complete the installation.
Note: If there is a DC PEM failure, the entire PEM must be replaced. There are no field-serviceable
parts inside the DC PEM unit.
Danger: Prevent exposure and contact with hazardous voltages. Do not attempt to operate this
system without the safety cover provided with each DC PEM.
Step
Task (continued)
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