ETA Systems 350VA Guide De L'utilisateur page 12

ETA SYSTEMS - UNINTERRUPTIBLE POWER MANAGER
minutes runtime left*
6 User sends a RS232 high (5-15V) for 3 seconds. This signal
turns off the UPM until normal input voltage returns. This
signal operates only if the UPM is in battery mode. Pin 6
also functions as the RS232 receive data.
7 Common Ground
8 Reserved
9 RS232 transmit data
* Load Dependent
Notes:
1. Pins 1, 2, and 5 are open collector outputs, which must be pulled up to a common referenced supply.
Switch rating: +40V, 0.15A non-inductive.
2. Pins 4 and 7 should only be connected to ground.
Important Note: You may, of course, connect your computer to the UPM without using
Communications Manager. When power is lost, the UPM will beep and you will have to
manually shut down the computer and UPM.
Configuration Manager
Configuration Manager provides control over important operation parameters of the UPM. Configuration
Manager controls these parameters through the settings on the DIP (dual inline pin) switch pack on the rear
panel and also through certain selections accessed by Communications Manager software.
Operating Voltage: The DIP switches can be used to configure the UPM operating voltage. For North
American models, the UPM can be configured to operate at 100, 110, 115, or 120 volts. International
models can be configured for 220, 230, or 240 volts. The following table illustrates the required switch
settings for each selection.
Voltage Required
120V/240V
115V/230V
110V/220V
100V
SW#1 SW #2 SW #3 SW #4
Off Off Off Unused
On Off Off Unused
Off On Off Unused
Off Off On Unused
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