Technical data

6. Description of Communication Interfaces.

6.1 Standard COM Interface

Cool POWER offers a standard interface which makes it possible to transfer data on an RS232 seri-

al communication protocol. The same interface provides for basic signaling communication using dry

contacts.

Both types of interface are combined in a 15-pin Sub-D connector with the serial communication sig-

nals, 2 output signals and 1 input signal, all with voltage levels according to the V24 standard.

The equipment comes with a communication cable with a 9-pin Sub-D connection on one end and a

15-pine Sub-D connector on the other.

Both communication systems can be used for:

· Direct communications between the UPS and the computer (PC)

· Installing the UPS is a centrally controlled network

Transferring basic operating statuses in external signaling systems

The connector pins are described below:

- The logic of the low battery and network failure signals can be con-

figured in the software.

- The “remote shutdown” input signal can be enabled or disabled

from the software and is active at logical level “1” (takes 5 seconds

to act).

REV: 16/03/01

Operating Manual

945012.066

1 - Low battery : Signal that the battery’s autonomy is coming to an end

2 - TDO : Serial communication output

3 - RDI : Serial communication input

4 - Remote shutdown : Remote UPS shutdown input signal

5 - GND : ground

9 - +5V @ 10mA : 5V signal

11 – Network failure: Network failure output signal