8
June
2004
8800-A2-GZ41-20
Providing Non-Redundant Power to Two BACs
Procedure
To connect two power modules to two BACs (see
Figure 3
):
1. If none exist, install split bolt connectors or a grounding block near the rack
where the power supply and BACs reside.
NOTE:
Split bolt connectors are not supplied.
2. Connect:
— The grounding lugs of the BACs to an earth ground.
— The PWR A –48V terminal of the first BAC to the –48VA terminal of the
power supply.
— The PWR A RTN terminal of the first BAC to a split bolt connector.
— The 0VRA terminal of the power supply to the split bolt connector.
— The PWR A –48V terminal of the second BAC to the –48VB terminal of
the power supply.
— The PWR A RTN terminal of the second BAC to a split bolt connector.
— The 0VRB terminal of the power supply to the split bolt connector.
— The split bolt connectors to an earth ground.
3. Verify that the power switches of the PEMs and the power modules are in the
off (0) position.
4. Insert the AC power cords into the Input A and Input B sockets at the rear of
the power supply. Plug the other ends into an AC power source.
5. Turn to the On (1) position the power switches of PEM A of each BAC and both
power modules. Verify that the POWER LEDs at the front of the power
modules and the POWER A LEDs at the top of the BACs are on.
