Connecting The System To A Ups - NEC Express5800/320Ma Installation Manual

Connecting the System to Electrical Power

Connecting the System to a UPS

1. Locate two black power cords and two labels, A and B.
2. Attach an A label to one power cord. Connect the power cord according to the
system you have:
•
Rack-mounted system: Connect one end of the cable to the receptacle on the
top CPU- I ⁄ O enclosure. Connect the other, country-specific, end to the UPS.
•
Pedestal system: Connect end of the cable to the receptacle on the right
CPU- I ⁄ O enclosure. Connect the other, country-specific, end to the UPS.
!
3. Attach a B label to the second power cord. Connect the power cord according to
the system you have:
•
Rack-mounted system: Connect one end of the cable to the receptacle on the
top CPU- I ⁄ O enclosure. Connect the other end to a second, separate, power
source.
•
Pedestal system: Connect end of the cable to the receptacle on the left
CPU- I ⁄ O enclosure. Connect the other end to a second, separate, power
source.
4. From the front of the system, make sure that the CPU- I ⁄ O enclosures are fully
inserted in the shelf unit by tightening, if necessary, the thumbscrews. Then, at the
rear of the system, turn the power interlock mechanisms into the locked position.
To configure the system to communicate with a UPS in the case of a power outage,
see the Express5800/320Ma: Software Installation and Configuration Guide.
4-10 Express5800/320Ma: System Installation Guide
C A U T I O N
Make sure the power interlock mechanism is unlocked
when you insert the power cord. On rack-mounted
systems, the unlocked position is vertical and on pedestal
systems the unlocked position is horizontal. In
and in Figure 4-2, the interlock mechanism, located
beneath the power connector, is shown in the unlocked
position. In Figure 4-3
mechanism is shown in the locked position.
and in Figure 4-4, the interlock
Figure 4-1