User manual

Installation

Emerson

RPC2

™

2.5 Create a Rack PDU Array

™

Up to four MPH2 or Liebert MPX rack PDU’s may be integrated into a Rack PDU Array, which

permits central control and monitoring of each rack PDU through a single Web interface. Each rack

PDU must have an RPC2 communications module installed.

The level of monitoring and control depends on the type of MPH2. MPH2 rack PDU’s with

management function permit monitoring and control of either groups of receptacles or individual

receptacles.

To set up a Rack PDU Array:

1. Log in with the privileges required to change these settings.

2. Insert an Ethernet cable connected to a computer or network switch into the Network port of

the RPC2 communications module that will serve as the master unit.

3. Insert an Ethernet cable into the Link port of the RPC2 communications module that will

serve as the master unit.

4. Insert the other end of the Ethernet cable into the Network Port of an RPC2 communications

module on a second MPH2; this RPC2 will be a sibling unit, accessible through the master RPC2.

Any of the RPC2 communications modules in the array may be designated as the master unit (see

Figure 3 for an example).

5. Reboot the RPC2 communications module in the sibling MPH2 rack PDU.

a. Insert a paper clip end or stiff wire of similar size into the hole between the Display Port

symbol and the Sensor Port symbol (see Figure 1 for the location).

b. Press the reset button and hold it firmly for at least 2 seconds.

6. The second RPC2 communications module will automatically detect the connections and reboot as

a sibling unit.

7. Connect additional RPC2 communications modules as shown in Figure 3; the Ethernet cable will

attach from the Link Port of an RPC2 that has been added to the array to the next module’s

Network Port.

8. Reboot each RPC2 after connection.

NOTE

Creating a Rack PDU Array does not require powering down either the MPH2 rack PDUs or

the connected load.

NOTE

Rebooting the RPC2 communications module causes no interruption of output power from the

MPH2 rack PDU.