ETA Systems 350VA Manual Del Usuario página 11

ETA SYSTEMS - UNINTERRUPTIBLE POWER MANAGER
Communication Manager Port
Communication Manager provides a connection port on the rear panel of the UPM. Connecting to this port
and installing Communication Manager's software package (optional), will allow you control over important
UPM functions and access to operating information from the UPM. Using Communications Manager's
software, you can view such parameters as AC input and output voltage, powerline frequency, and battery
voltage. The following table illustrates the available parameters.
Input Voltage
Output Voltage
AC Frequency
Battery Voltage
Change Battery
Percent Load
Temperature
Communications Manager also can support simple software programs that rely on basic "contact closure"
signaling from the UPM. An example would be the built in UPS Service provided in Windows® NT. The
functions of basic software control usually include the following:
Broadcast warnings of power failures/timed shutdowns
Automatic closure of files prior to battery exhaustion
Power down of the UPM and connected equipment
To support these functions without the Communications Manager software suite, you will need to either buy
or build your own special cable. The following table describes the pin assignment of the DB9 connector on
the rear of the UPM. Contact your computer supplier to determine the connection
configuration and connector style necessary to attach the cable to the computer.
Pin #
1 UPM simulates a relay opening between Pins 1 and 4 when
input power fails
2 UPM simulates a relay closing between Pins 2 and 4 when
input power fails
3 UPM sends a RS232 high (12V) 1 second after input power
fails (normally low)
4 Common Ground
5 UPM simulates a relay closing when battery has less than 2
Indicates the actual input voltage to the UPM
when AC power is present
Indicates the actual output voltage of the UPM
Indicates the actual output frequency of the UPM
Indicates the actual DC voltage of the internal
battery buss
Indicates the battery is incapable of holding a
charge and requires replacement
Indicates the percentage of VA capacity being
used by connected load
Indicates the actual internal temperature of the
UPM
Description
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