INFOSEC M4T, User Manual

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INFOSEC UPS SYSTEM - 4, rue de la Rigotière - 44700 Orvault - FRANCE - www.infosec-ups.com
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4.3.6 COM port to relay. Connector (X32).

The communications line (COM) represents a very low safety voltage circuit. To maintain the quality, it
must be installed away from other lines that have dangerous voltages (power distribution line).
 The communication port to relays provides digital signals in the form of potential free contacts with a
maximum applicable voltage and current of 6 A 30 V DC or 6 A 100 V AC. Both channels are used to
connect the UPS to any machine or device that has this standard bus (connector DB9 (X32)).
 In standard units, there are 5 output signalling relays (one of which can be configured), whose common
point is connected to pin 5. Also an input signal can be externally supplied to perform Shutdown (5V~12V).
 The most common use of these kinds of port is to supply the necessary information to the file closing
software.
Fig.16. DB9 Connector (X31) & (X32).
Pin-out No. Description N.C.-N.O. Position
1 Shutdown signal + -
2 Shutdown signal – -
3 Configurable Not connected
4 Discharge - Mains failure N.C.
5 Common -
6 Equipment in Bypass N.O.
7 Low battery N.O.
8 General alarm N.O.
9 Discharge - Mains failure N.O.
N.C.: Normally closed contact.
N.O.: Normally open contact.
Table 2. Alarm interface to relay connector DB9 (X32).
4.3.7 Port COM RS-232 & RS-485. Connector (X32).

The communications line (COM) represents a very low safety voltage circuit. To maintain the quality, it
must be installed away from other lines that have dangerous voltages (power distribution line).
 Both of the equipment’s communication ports, RS-232 and RS-485, are in the same connector DB9. It is not
possible to use them simultaneously.
 Both channels are in use to connect the UPS with any machine or device that has this standard bus. The
RS-232 transmits serial data, so it is possible to send a large amount of information through a
communication cable with just 3 wires.
 Physical structure of the RS-232.
Pin-out
- Pin 2. RXD. Serial data reception.
- Pin 3. TXD. Serial data transmission.
- Pin 5. GND. Signal mass.