Emerson MPHR2204, User Manual

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Operation
24 Emerson
®
MPH2
™
User Manual
3.0 Operation
Emerson’s MPH2 Rack PDU may be monitored and managed by the factory-installed RPC2
communications module. This manual presents information about the MPH2’s functions and features.
Refer to the RPC2 user manual, SL-20841, for details on using the RPC2 communications module to
monitor and manage the MPH2. The document shipped with the MPH2 Rack PDU and is available at
Emerson’s Web site,
http://www.emersonnetworkpower.com
The MPH2’s on-board LCD and the Web-based interface display system operating measurements, as well
as readings from optional Liebert SN temperature or temperature/humidity sensors. The RPC2
communications module and on-board LCD also display basic information about the MPH2 Rack PDU,
such as firmware version, unit rating, model number and serial number.
LEDs on the MPH2 and an audible alarm also assist in monitoring performance with alerts about events
and alarm conditions. The keys under the on-board LCD are used to navigate to various information and to
silence alarms.
3.1 Controls and Indicators
The MPH2 Rack PDU also has LEDs that indicate receptacle and branch status and system information.
LEDs flash, pulse or change colors to indicate an event or alarm condition (for details on how LEDs
respond to events and alarms, refer to
5.0 - Troubleshooting .
Figure 3-1 On-board LCD and control keys
NOTE
Units with a “B” as the fourth character in the model name (MPH B xxxx) do not have LEDs at their
receptacles. The branch and receptacle LED behavior in 5.0 - Troubleshooting and elsewhere in
this document does not apply to these units.
Receptacles on units with an “M” as the fourth character in the model name (MPH M xxxx) cannot
be turned Off. LEDs at receptacles on these models are always either on continuously or flashing
when input power is present.
Number Description
1 On-board LCD
2 Line-input-status LEDs
3 Right-arrow key
4 Select key
5 Left-arrow key