Riello UPS Sentinel Dual (High Power) (3.3 - 10 kVA) - Manual (Page 57)

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OMMUNICATION PORTS
The following communication ports are found on the rear of the UPS (see UPS Views):
 RS232 connector
 USB connector
 Expansion slots for additional COMMUNICATION SLOT interface cards
RS232 and USB connectors
RS232 CONNECTOR USB CONNECTOR
1 2
3 4
PIN # SIGNAL PIN # SIGNAL
1 Contact closed: UPS stopped * 1 VBUS
2 TXD 2 D-
3 RXD 3 D+
4 4 GND
5 GND
6
7 +12Vdc interface power supply input
8 Contact closed: end of discharge early warning *
9 Contact closed: battery-powered operation *
* O ptoisolated contact max. +30Vdc / 10mA
Communication Slot
The UPS is provided with an expansion slot for optional
communication cards (see the figure to the side) that enable the
machine to carry out dialog using the main communication standards.
Some examples:
Second RS232 port
Serial port duplexer
Ethernet network agent with TCP/IP, HTTP and SNMP protocol
RS232 + RS485 port with JBUS / MODBUS protocol
For more information on the accessories available, consult the
manufacturer’s web site.
UPS