To connect a remote emergency power-off switch, complete the following steps:
1. Turn off the UPS, disconnect all external cables, and make sure that the UPS is
disconnected from utility power.
2. Remove the remote emergency power-off connector from the accessory kit.
Note:
Make sure that no jumper is installed in the remote emergency power-off
connector. If a jumper is installed, remove it before you connect to the remote
emergency power-off connector.
3. Install the remote emergency power-off connector in the remote emergency
power-off port on the rear of the UPS.
Note:
The orientation of the remote emergency power-off port on your UPS
model might be different from what is shown in the following illustration. You
might have to rotate the remote emergency power-off connector to install it.
Remote emergency
power-off connector
Openings
4. Connect the switch or circuit to the remote emergency power-off connector on
the rear of the UPS, using insulated size 18 - 20 AWG (0.75 mm
2
- 0.5 mm
2
)
wire.
Note:
A separate contact must simultaneously cause UPS input ac power to be
removed.
5. Make sure that the externally connected remote emergency power-off switch is
not activated. An activated remote emergency power-off switch disables power
to the UPS receptacles.
Chapter 2. Installing the uninterruptible power supply
15
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