Introduction
8Emerson
®
MPH2
™
User Manual
1.3.2 LED Indicators
The MPH2 Rack PDU also has LEDs that indicate receptacle and branch status and system information.
The 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.
1.3.3 On-board LCD Controls and Indicators
Emerson’s MPH2 has an integrated, on-board LCD that can be used to view information about the rack
PDU. The information available depends on the type of MPH2. For additional information about the
on-board LCD, refer to 3.0 - Operation.
1.3.4 Power Components
The component location and type depend on the model of the MPH2 Rack PDU. For example, units
with a “B” as the fourth character in the model name do not have LEDs at their receptacles; see Figures 1-
4, 1-5 and 1-6.
Figure 1-4 Branch and receptacle identification—Units with no monitoring (Type B models)
NOTE
Units with a “B” as the fourth character in the model name (MPHBxxxx) 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 (MPHMxxxx) cannot
be turned off. Refer to the description of branch and receptacle LED behavior in 5.0 -
Troubleshooting.
Number Description
1 Branch identification
2 Receptacle identification
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