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Section 1 | Important Safety Instructions
THESE INSTRUCTIONS ARE INTENDED FOR USE BY A TECHNICIAN FAMILIAR WITH ELECTRONIC
PRODUCTS.
WARNING:
There are no user serviceable parts inside. Service must be referred to a qualified factory
technician or factory trained technician. DO NOT operate the unit in a hot, enclosed environment or
compartment. Be sure adequate ventilation for cooling is provided since heat buildup will shorten
component life.
NOTE
: The individual user should take care to determine prior to use or installation whether this
device is suitable, adequate, and safe for the use intended. Since individual applications are subject
to numerous variations, DuraComm makes no representation or warranty as to the merchantability,
suitability, or fitness of these units for any specific application.
Section 2 | Product Overview
The HE1U-XX12-BBLVD-MU is an internet-ready high-efficiency AC to DC power supply with a low
voltage disconnect in a 1U chassis. The unit comes with power factor correction, and four layers of
protection against overload, over voltage, over temperature, and short circuit. This model also
comes with a manual battery disconnect switch, internal power supply ON/OFF remote control, and
DC-OK signal.
The internal Remote Monitoring and Control Unit (RMCU) provides the ability to remotely monitor
the AC voltage, power supply voltage, battery voltage, power supply current, battery current, and
internal temperature, as well as the ability to remotely control the power supply ON/OFF state and
battery connection all via the internet using any standard web browser. A mobile-friendly version of
the status page is also included.
Users that have access to the network can view the status of the power supply, control outputs, and
the alarm conditions, as well as download a CSV file of logged states. Administrative users can
access the setup screens and change the control settings by logging into the RMCU via the browser.
Alarm conditions are configurable and can include over and under thresholds. Alarm notifications
can be configured by an administrator to send email and SNMP traps. Setups are saved in non-
volatile RAM, and a battery backed up real-time clock is provided to timestamp information logged
to the internal SD card. Logging rate can be set by the user.
Section 3 | Installation and Operation
The outputs are NOT referenced to the chassis. However, the Alarm IN and the Alarm OUT are
referenced to the negative output, so ‘G’ on the alarm connections will be negative 12 volts if the
unit is installed in a positive ground system. As an option, the Alarm IN and the Alarm OUT can be
configured to be fully opto-isolated.
DO NOT block any of the cooling vents and/or cooling fan on the side. Always allow adequate
ventilation by not installing the unit inside tightly closed spaces.
