Rs232 Interface; Usb Port; Communication Socket - Riello DVT 50 User Manual

RS232
INTERFACE
With the RS232 serial interface the UPS can be connected to a PC (COM interface) by means of a pin-to-pin
serial cable (if a different cable is used, this must be of the pin-to-pin type with a maximum length of 3 metres).
The interface (with factory settings) has the following characteristics:
a) SD: With the UPS in battery mode, if +5~15Vdc is applied for at least 20 seconds (between PIN 3 and PIN 5),
the UPS will shut down completely
b) B.W. = contact closed in battery mode (values max:25mA +35Vdc Vce sat max: 1.5V @ 25mA)
c) B.L. = contact closed when battery is flat (values max:25mA +35Vdc Vce sat max: 1.5V @ 25mA)
d) UPS Failure/Alarm = contact closed in the event of failure or signalling of alarms by the UPS (maximum
values: 25mA +35Vdc Vce sat max: 1.5V @ 25mA)
e) Input programmable via RS232: +(5 - 15) Vdc.
USB
PORT
The USB port is used to establish communication between the UPS and a PC. When the communication cable is
installed, the management software (Powershield
provide detailed information on the UPS operating status. In the event of a mains power supply failure, the
software can save the data and shut down the computer.
Note: The USB port and the RS232 serial interface, located on the rear of the UPS, cannot be used at the same
time, as the use of one excludes the other.
C
OMMUNICATION SOCKET
All UPS are provided with an expansion slot for optional communication cards so that the unit is compatible with
the main communication standards.
Some examples:
• 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 options available, please visit the manufacturer's website.
60
RS232 CONNECTOR
6 7
1 2
PIN SIGNAL (factory settings)
1 Contact closed: UPS Failure/Alarm
2
3 RXD / SD (remote shutdown)
4 Programmable input
5
6 +12Vdc (80mA)
7
8 Contact closed: battery low pre-alarm
9 Contact closed: battery mode
3
) can exchange information with the UPS. The software can
C
OMMUNICATION PORT
8 9
3 4 5
(d)
TXD
(a)
(e)
GND
PNP signal
(b)
(c)