ServerNet Cluster 6770 Hardware Installation and Support Guide

Powering On and Powering Off a ServerNet Cluster

Switch

ServerNet Cluster 6770 Hardware Installation and Support Guide—522544-002

7-3

Connecting to the Remote EPO Port, if Required

To connect to the remote emergency power-off (EPO) port on the UPS, have an

electrician perform the following steps:

1. From the back of the enclosure or rack, remove the pluggable terminal block from

the remote EPO port as shown in Figure 7-1.

2. Connect the remote EPO port to dry, isolated normally-open contacts rated at

60Vdc maximum, 30Vac RMS maximum, and 20 mA maximum. Use a single set of

contacts per each UPS.

Connecting an AC Transfer Switch to AC Power

The AC transfer switch powers on as soon as the AC power cords are connected to

the power sources.

1. Make sure that you have the two power cords (T24242-A00).

2. Connect one end of the two power cords to the IEC-320 inlets on the AC transfer

switch.

3. Connect the other end of the two power cords to two independent AC power

sources.

Figure 7-1. Removing the Pluggable Terminal Block

Caution. Failure to conform to these guidelines may create dangerous conditions for the

operator by disabling the safety insulation of the equipment.

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