Uninterruptible Power Supplies Online UPS 1.5K User Manual download pdf (Page 13)

9. Communication Port

9.1 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

9.2 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

2 Summary Alarm Output

3 GND Input

4 Remote

Shutdown

Input

5 Common Input

6 Bypass Output

7 Battery Low Output

UPS ON Output

9 Line Loss Output

Figure 16.2: DB-9 Interface of AS400 communication

protocol

1 2 ... 8 9 10 11 12 13 14

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Uninterruptible Power Supplies Online UPS 1.5K User Manual Page 13