Uninterruptible Power Supplies Online UPS 1K User Manual download pdf (Page 33)

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16. Communication Port

16.1 RS232 Interface

The following is the pin assignment and description of DB-9 connector.

Pin # Description

I/O

2 TXD Output

3 RXD Input

5 GND Input

16.2 AS400 Interface(Option)

Except for the communication protocol as mentioned above, this series UPS has AS400 card

(an optional accessory) for AS400 communication protocol . Please contact your local

distributor for details. The following is the pin assignment and description of DB-9 connector in

AS400 card.

Pin #

Description

I/O

1 UPS Fail Output

Summary

Alarm

Output

3 GND Input

Remote

Shutdown

Input

5 Common Input

6 Bypass Output

7 Battery Low

Output

8 UPS ON Output

9 Line Loss Output

Figure 16.2: DB-9 Interface of AS400

communication protocol

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Uninterruptible Power Supplies Online UPS 1K User Manual Page 33