Communications Interface Port - Liebert UPSTATION GXT3X1-6000 User Manual

Chapter 5 - Communications
5.5

Communications Interface Port

The UPStation GXT 3x1 UPS contains a standard DB-9 socket located on the rear of the UPS unit. Several signals are
provided on this port and are assigned as follows:
PIN ASSIGNMENT DESCRIPTION
1 Low Battery (open collector)
2 UPS TxD (typical RS-232 levels)
3 UPS RxD (typical RS-232 levels)
4 Remote Shutdown (5-12V); battery operation
5 Common
6 Remote Shutdown (short to pin 5) any mode
7 Low Battery (open emitter)
8 Mains Fail (open emitter)
9 Mains Fail (open collector)
CAUTION: TO MAINTAIN SAFETY (SELV) BARRIERS AND FOR ELECTROMAGNETIC COMPATABILITY,
SIGNAL CABLES SHOULD BE SEGREGATED AND RUN SEPARATE FROM ALL OTHER POWER CABLES, BY
25mm WHERE APPLICABLE.
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PIN ASSIGNMENT
*Maximum voltage and current on pins 1,7,8,9 is 80V DC; 10.0 mA.
COLLECTOR TO EMITTER*
(06/02)
UPStation GXT 3x1