Power Supply User Manual

6.2 Dry Contact Interface (optional card)

Pin # Description I/O Type

DB9 Male Connector Outline

(facing connector)

1 UPS fail, relay contact, normally open, active close. output

2 Summary alarm, relay contact, normally open, active close.

One of the following signals activate this signal:

1) Output fault

2) Bus fault

3) Over temperature

4) Overload

5) Over Charging

6) Battery test fail

7) Charger failure

output

3 GND for secondary

4 Remote shutdown input

5 Common

6 Bypass active, normally open, active close output

7 Battery low, normally open, active close output

8 Battery mode shutdown input

9 Utility fail, normally open, active close output

Table 2 : DryContact Pin Out Signal Chart

6.3 USB Port

Connecting the UPS to a computer using the USB port of the computer requires USB

compliant hardware, PC operating system support, and a UPS driver. The RS232 serial