Weidmuller WI-MOD-945-E: 900Mhz Wireless Ethernet & Device Server v1.9 - Manual

FCC Statutory Requirements
Unlicensed operation limits the radio power. High gain aerials may only be
used to compensate for cable losses.
RJ-45 Ethernet
Connection
Factory
Default Switch
RS485 Resistor
Termination
Switch
1 2
8 9 7 6
4 5 3
Connect M4 screw terminal on
rear of module to GROUND for
surge protection
*
Installation Guide
REV 1.9 December 2011
WI-MOD-945-E Wireless Ethernet
* Connect to Ground as
close as possible to the
module.
NOTES
ALL connections must be SELV (Safety Extra Low Voltage <50V AC & <120V DC)
Ethernet Port wiring is that of a hub or switch.
‘-' Supply terminal and 'M4 GND screw on rear of module' must be connected to EARTH /
GROUND as close as practical to the unit.
Module Power Supply -Ve terminal is not Isolated from Earth/GND
DIO channel can be wired as either input or output.
Care must be taken with antenna selection and proximity to the radio.
For short distance paths, RX signal level should be checked and if it exceeds -40dBm a 20dB
attenuator must be fitted in line with coax cable.
Demo Antennas must not be used for final installation.
The non-metallic cover of the Wireless Ethernet Modem is considered to constitute an
electrostatic discharge hazard. Clean only with a damp cloth
The Wireless Ethernet Modem enclosure contains aluminum and is considered to constitute a
potential risk of ignition by impact or friction and must be taken into account during installation.
If the Wireless Ethernet Modem is installed as Category 3 equipment, then it shall be installed
in an Enclosure which maintains an ingress protection rating of IP54 and meets the enclosure
requirements of EN 50014 or EN60079-0.
If installed in a hazardous environment coaxial cable shall be installed in a metallic conduit as
per NEC requirements
9-30V
DC Supply
*
2A Fuse or
Circuit Breaker
BEWARE OF
GROUND LOOPS
THIS EQUIPMENT IS SUITABLE FOR USE IN CLASS I DIVISION 2 GROUPS A,B,C AND D HAZARDOUS LOCATIONS, OR NONHAZARDOUS LOCATIONS ONLY.
WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT WHILE THE CIRCUIT IS LIVE OR UNLESS THE AREA IS KNOWN TO BE FREE OF IGNITABLE CONCENTRATIONS.
WARNING - EXPLOSION HAZARD - SUBSTITUTION OF ANY COMPONENT MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2.
RS232 Connections
DCE HOST
DB9
MALE
MODEM
DB9
MALE
RD
TD
SG
RTS
CTS
DSR
DTR
DCD
RD
TD
SG
RTS
CTS
DSR
DTR
DCD
2
5
7
8
6
4
1
3
2
5
7
8
6
4
1
3
DCE HOST MODEM
DB9
MALE
DB9
FEMALE
RD
TD
SG
RTS
CTS
DSR
DTR
DCD
RD
TD
SG
RTS
CTS
DSR
DTR
DCD
2
5
7
8
6
4
1
3
2
5
7
8
6
4
1
3
PC’s
PC’s, Dataloggers
RS485 Connections
HOST HOST
-
+
Antenna Installation
COLINEAR
ANTENNA
MAST
MODULE
SURGE
ARRESTOR
(RECOMENDED)
COAXIAL CABLE
WEATHERPROOF
CONNECTORS WITH
“3M 23” TAPE
PROVIDE GOOD GROUND
CONNECTION TO MAST, MODULE
AND SURGE ARRESTOR
CONNECTION ON
REAR OF MODULE
1 Wavelength
minimum
IF GROUND CONDITIONS ARE
POOR, INSTALL MORE THAN
ONE STAKE
STRESS RELIEF
LOOP
M4 x 5mm
INSTALL ANTENNA ABOVE
LOCAL OBSTRUCTIONS FOR
MAXIMUM RADIO DISTANCE
Wavelengths
900 MHz = 33 cm
Digital Output Wiring
Max
30VDC
0.5A - +
DC Load,
eg Relay
MODULE
COM DIO
*
*