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13
Communications
(continued)
AS-400 INTERFACE
This female DB9 port connects your UPS to an IBM AS-400
computer via the included AS-400 cable. The port uses AS-400
communications to report UPS status. It can be used to allow an
AS-400 to automatically save open files and shut down its operat-
ing system during a blackout. AS-400 protocol includes: operation
on inverter, operation on AC power supply, operation on battery
and low battery alarm.
Pin assignment:
Pin 5: Common
Pin 6: Operation on AC power supply
Pin 7: Low battery alarm
Pin 8: Operation on inverter
Pin 9: Operation on battery
AS-400 INTERFACE TABLE
Pin 6,5 Pin 7,5 Pin 8,5 Pin 9,5
Battery OFF * ON ON
Low Battery OFF ON ON ON
Direct Mains Supply ON OFF OFF OFF
Inverter OFF * ON *
* Inactive: may be in either state.
DRY CONTACT INTERFACE
This female DB9 contact-closure port allows your UPS to
send contact-closure signals to indicate that it is on battery
back-up mode and if its batteries are running low. The port
can also receive a remote shutdown signal.
DRY CONTACT INTERFACE TABLE
UPS Operating Pin 8,3 Pin 1,3
Mode
Normal OPEN OPEN
Back Up CLOSE *
Low Battery CLOSE CLOSE
* Inactive: may be in either state.
3 V
+
-
Pin assignment: