E-Mon E-PS-S-HV-RTU - Manual (Page 30)

Chapter 2 Operating the
PowerSmart Socket PQM Auxiliary AC/DC Backup Power Supply
30 PowerSmart Socket Power Quality Meter
USB Communications
An embedded full speed 12-Mbit USB 1.1 port provides a
local communications with the support Power Software
software.
USB communications does not require any settings. Just
connect your PC to the PowerSmart Socket PQM USB port
using the supplied USB cable and install the USB driver
provided on the CD with your meter (see
Installing the USB
Driver in Chapter 4).
Auxiliary AC/DC Backup Power Supply
An auxiliary AC/DC backup power supply module can be
provided for powering the meter from an external AC/DC
power source in the event of power outages for maintaining
continuous uninterrupted operation of the meter.
See the PowerSmart Socket PQM Installation Manual for the
power supply ratings and connection diagram.
The module is provided with a yellow indication LED that
lights when the external AC/DC voltage is applied to the input
terminals.