http://www.lugor.org/ups/genpower.txt. That should do the job for you.
Yes -- good info. Thanks. Although at first glance, the shown serial port side does not seem to exactly match any of the genericups types supplied with the SuSE 7.3 system. But, I think I can fix that. Diagram for TrippLite BC PRO to Linux PC: (Fixed-width font helps in viewing the following diagram.) UPS SIDE (9 Pin) SERIAL PORT SIDE PIN 3 o-------------+------------------------o DCD [POWER FAIL] | +---+ | | resistor | | 10 kilo-Ohm | | +---+ | +------------------------o RTS | +---+ | | resistor | | 10 kilo-Ohm | | +---+ | PIN 6 o-------------+------------------------o CTS [LOW BATTERY] Pin 1 o--------------------------------------o GND [COMMON NEGATIVE/GND] +----------+ Resistor PIN 2 o---------------+ 100k Ohm +-----------o DTR [INVERTER SHUTDOWN POS] +----------+ PIN 4 o--------------------------------------o RI [INVERTER SHUTDOWN NEG]