31

common ground is connected to pin 5. Furthermore, an input signal can be used to shut down the UPS (5 VDC – 12 VDC.)

Fig.21:  Connector DB9 (X31) & (X32)

 

Pin-out No.

Description

N.C.-N.O. Position

1

Shutdown signal +

-

 

 

 

2

Shutdown signal –

-

3

Configurable

Not connect

4

Discharge - Mains failure

N.C.1

5

Common

-

6

Equipment in Bypass

N.O.2

 

 

 

7

Low battery

N.O.

 

 

 

8

General alarm

N.O.

 

 

 

9

Discharge - Mains failure

N.O.

 

 

 

1N.C.: Normally closed contact. On the alarm having activated the contact is opened.

2N.O.: Normally open contact. On the alarm having activated the contact is closed.

Table 2:  Alarms interface to relays connector DB9 (X32)

4.3.6. COM-interface RS232 and RS485, connector (X31)

The serial communications interface operates over low voltage. To ensure safe and trouble-free communication, install at a safe distance from the power supply lines to the UPS.

The X31 DB9-connector is used for communication to RS232 or RS485 standard connectors. Both standards cannot be used simultaneously.

Both channels are in use for connecting the UPS with any machine or devices that has this standard bus. The RS232 consists of the transmission of serial data, so it is possible to send a large amount of information through a communication cable of just 3 wires.

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AEG 2.33 2 user manual COM-interface RS232 and RS485, connector, Connector DB9 X31

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