Installing the Power Input Retention Bracket

For units with a total maximum output <30A, it may be necessary to install the power input retention bracket prior to mounting the unit within the rack.

To install the power input retention bracket:

1. Remove the two screws attaching the IEC 60320 C19 inlet to the enclosure.

2. Assemble and attach the retention bracket to the enclosure as shown.

Figure 2.1 Retention Bracket assembly

Mounting

1.Select the appropriate bracket mounting points for

proper mounting depth within the rack.

2. Attach the brackets to these mounting points with two screws for each bracket.

3. Install the enclosure into your rack, using the slots in each bracket. The slots allow about ¼ inch of horizontal adaptability to align with the mounting holes of your rack.

NOTE: A mounting bracket kit for 23” wide racks or cabinets is available. Contact your Server Technology Sales Representative for more information.

Figure 2. Mounting

Optimizing the Transfer Thresholds

The Voltage Selector switch is used to optimize the transfer threshold by configuring the Transfer Switch for the nominal operational voltage of the installation. The Transfer Switch uses this setting to calculate the brownout and over-voltage threshold (± 13% ).

To optimize the transfer threshold:

Select the voltage setting that most closely matches the nominal operating voltage of the power sources.

Connecting to the Power Source

To attach a power cord to the unit:

1.Plug the female end of the power cord firmly into its connector at the base.

2.Use a screwdriver to tighten the two screws on the retention bracket.

To connect to the power source:

Plug the male end of the power cord into the AC power source.

Connecting Devices

1.Keep the device’s on/off switch in the off position until after it is plugged into the outlet.

2.Connect devices to the CDU outlets.

NOTE: Server Technology recommends even distribution of attached devices across all available outlets to avoid exceeding the outlet, branch or phase limitations. See Power Ratings on page 9 for more information.

Always disconnect ALL power supply cords before opening to avoid electrical shock.

Afin d’éviter les chocs électriques, débranchez TOUTES les cables électrique avant d’ouvrir.

Immer ALLE Netzleitungen auskuppeln vor den Aufmachen um elektrischen Schlag zu vermeiden.

Rack-Mount Fail-safe Transfer Switch

Installation • 7

Installation and Operations Manual