User Manual
RM169-1
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc. MI004760-E
Rev. 0
Pag. 10
9.
INSTALLATION
9.1.
Mechanical
The device must be installed in a location that is sufficiently ventilated so that there is no risk of internal heating.
Place the device against a flat, firm and stable surface. It is not recommendable to install the radio modem on a
strongly vibrating surface. Suitable dampening and/or isolation materials should be used in cases where the
installation surface will be subjected to vibration.
9.2.
Electrical (wiring)
To prevent damage both the radio modem and any terminal devices must always be switched OFF before
connecting or disconnecting the serial connection cable. It should be ascertained that different devices used
have the same ground potential. Before connecting any power cables the output voltage of the power supply
should be checked.
The product has no disconnecting device. An external disconnecting device must be installed. This must be
close to the equipment. Provide an adequate termination resistance on the RS485 serial line.
To by supplied by class II (LPS) certified AC/DC adaptor.
JP4 Connector
PIN
Label
Description
1
A RS485
RS-485 (line A)
2
RXD (OUT)
Data output
3
TXD (IN)
Data input
4
DTR
Data Terminal Ready
5
GROUND
Ground (GND)
6
N.C.
Not connected
7
RTS
Request To Send
8
CTS
Clear To Send
9
A RS485
RS-485 (line B)
JP1 Connector
PIN
Label
Description
1
Optoisolated digital input
2
3
Digital output normally open (NO)
4
5
Ground (GND)
6
9-32V 0,6A
Power supply (9 - 32 VDC, 0.6A)
