S3K Series Instruction Manual • 12
Visit our Web site at www.solahd.com
7.4.1 remote Port Pin configurations
Pin
Description
i/o
2
Power fail. Generates a high to low signal when the line fails.
Notes:
Normally open status; closed when active. Open collector output must
be pulled up to a common referenced supply no greater than +40 V dc. The
transistors are capable of a maximum non-inductive dc load of 25 mA. Use
only pin 4 as the common.
Output
4
Reference ground for PINs 2 & 5
N/A
5
Battery low. Generates a high to low signal when the internal battery of the
UPS has less than 5 minutes of backup time remaining.
Notes:
Normally open status; closed when active. Open collector output must
be pulled up to a common referenced supply no greater than +40 V dc. The
transistors are capable of a maximum non-inductive dc load of 25 mA. Use
only pin 4 as the common.
Output
6
Remote shutdown of the UPS
Notes:
PIN 6 has a multi-purpose functionality: (1) Will shut down the UPS
when a high RS-232 level is sustained on PIN 6 for 0.36 seconds; (2) Is the
RS-232 data input (R x D). Keep this pin at high voltage (+5 V to +12 V) for
500 ms to shutdown the UPS. Activates when in the battery mode only.
Input
7
Reference ground for PIN 6
N/A
9
RS-232 data output
Output
Note:
PINS 2 and 5 rating: +40 V dc, 25 mA non-inductive
8.0 Maintenance & Storage
8.1 Maintenance
• Keep the unit clean (wipe with a soft, damp cloth) and vacuum the ventilation
intake periodically.
• Check for loose and bad connections monthly.
8.2 Storage conditions
• Before storing, charge the UPS’s batteries for at least 4 hours.
• Store the UPS covered and upright in a cool, dry location, with the batteries fully
charged.
• To avoid unnecessary draining of the batteries, remove any accessories in the
accessory slot and disconnect any cables connected to the REMOTE PORT.
• During extended storage in environments where the ambient temperature is
-15°C to +30°C (+5°F to +86°F), charge the UPS’s batteries every 6 months;
+30°C to +45°C (+86°F to +113°F), charge the UPS’s batteries every 3 months.