Allied Telesis AT-8012M Installation Manual page 70

Installation
70
7. Secure the tray supply cable near the rack framework using
multiple cable ties to minimize the chance of the connections
being disturbed by casual contact with the wiring. Use at least four
cable ties separated four inches apart with the first one located
within six inches of the terminal block.
Note
This system will work with a positive grounded or negative
grounded DC system.
8. Ensure that the circuit breaker is in the Off position.
9. Connect the DC wires to the circuit breaker. (Refer to "Technical
Specifications" on page 79 for power requirements.)
10. Power on the circuit breaker.
11. Verify that the PWR LED on the front of the unit is green. If the PWR
LED is OFF or the FAULT LED is solid yellow, refer to
"Troubleshooting" on page 75.
The switch runs a series of self-diagnostic tests, which take a few
seconds to perform. Once the self tests are complete, the switch is
ready for normal network operations.
Warning
This unit might have more than one power cord. To reduce the risk
of electric shock, disconnect all power cords before servicing the
unit.
20