Force10 Networks Force10 TeraScale E-Series E1200i - Manual (Page 48)

48 Installing DC Power Supplies
• Your power cables connect to an appropriate DC supply in a manner that complies with your local
electrical codes. For DC systems, a Main Disconnect must be provided.
• On the DC PEM(s), use a voltage meter to verify power on the cables. Also verify that the Voltage
LED is green.
• A power supply blank is installed in any empty slot.
• Six fan trays are installed.
To test the power supplies and fan trays:
Step Task
1. With the fan trays and DC PEMs installed, power on the system.
• Flip the over-current protector (located on the PEM front panel) to the ON position.
2. PEM Status LEDs should be green.
If an LED is not lit or is amber, check that the unit is properly installed. Verify the power
source. If the LED remains unlit, power off all modules and replace the unit.
3. All six fan tray LEDs should be green (online). Verify that air is flowing through the chassis.
If a fan tray is not operating properly or air is not flowing through the chassis, power off the
chassis at the remote power source. Ensure that all fan trays are properly installed. Verify
the remote power source. If a fan tray LED remains unlit, replace the fan tray.
4. After you have verified the power and fan operability, power off the chassis to continue the
installation process.
5. De-energize the Main Disconnect and flip the over-current protector to the OFF position.
6. Verify that the LEDs are not lit.