Allied Telesis AT-MCR1 - Manual (Page 40)

Chapter 2: Installation
40
5. Connect the negative feed wire to the terminal block marked
(-).
Warning
Check to see if there are any exposed copper strands coming
from the installed wires. When this installation is done
correctly there should be no exposed copper wire strands
extending from the terminal block. Any exposed wiring can
conduct harmful levels of electricity to persons touching the
wires.
E12
6. 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. Locate the first
one within six inches of the terminal block.
This system will work with a positive grounded or negative
grounded DC system.
E13
7. Ensure that the circuit breaker is in the OFF position.
8. Connect the DC wires to the circuit breaker.
9. Power on the circuit breaker.
10. Verify that PWR LED in the front of the chassis green.
If the PWR LED is OFF, refer to Chapter 3, ”Troubleshooting”
on page 43 for instructions.
The chassis runs a series of self-diagnostic tests, which take
a few seconds to perform. Once the self tests are complete,
the chassis is ready for normal network operations.