Eaton 945U-E Installation guide

Eaton
Brand
Eaton
Model
945U-E
Category
Flat panel accessories
Type
Installation guide
Installation steps
This guide provides installation drawings and instructions
appropriate for most applications. For more information, refer to
the user manual.
1. Connect the GND terminal on the back of the 945U-E to
earth/ground.
2. Install the antenna.
3. Connect the 945U-E to a DC power supply and power on.
4. Connect the
945U-E
to your computer via Ethernet and
configure the
945U-E
. Refer to the user manual for
configuration details.
Antenna installation
When selecting an antenna, consider radio proximity. For short
distance paths, check the receive signal level. If it exceeds
–40dBm, a 20 dBm you must fit an attenuator in-line with the
coaxial cable. Do not use demonstration antennas for the final
installation.
Use Figure 1 as a guide for installing an antenna and attaching it
to the 945U-E.
Figure 1. Antenna Installation
Earth Stake
Module
Connection
For maximum
range, install
above local
obstructions.
*
Wavelength: 13" (33 cm)
GND
at least 11 AWG (4 mm
2
)
Earth Conductor
at least 5 AWG
(16 mm
2
)
M4 x 5 mm
Weatherproof
Connections
(recommended:
3M
™
23 self-
bonding tape)
Mast
Coaxial Cable
GND
Surge Arrestor
(recommended)
Provide good ground
connection to mast,
module, and surge
arrestor.
If ground conditions
are poor, use more
than one stake.
Stress
Relief
Loop
Antenna* 1 Wavelength
(minimum)
945U-E
945U-E wireless Ethernet modem
installation guide
NOTE
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. Substitution of any
component may impair suitability for
Class I Division 2.
Statutory requirements
FCC: Unlicensed operation limits
the radio power. High gain aerials
may only be used to compensate
for cable losses. .
Instruction Leaflet IL032045EN
Effective Febuary 2016 Version 2.0
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
Eaton’s wireless business
www.eaton.com/wireless
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
945U-E wireless Ethernet modem installation guide
EATON_945U-E Install Guide
Instruction Leaflet IL032045EN
Effective Febuary 2016
Version 2.0
© 2015 Eaton
All Rights Reserved
Printed in USA
Publication No. IL032045EN
Febuary 2016
RS-485 connections
Use shielded twisted pair cable to
interconnect modules to reduce
potential RFI.
Maintain the polarity of the two
RS-485 wires.
Terminate each end of the
network with a 120-ohm resistor.
An on-board terminating resistor is
provided in the modem and can be
engaged by setting the DIP switch
on the end plate to ON.
RS-232 connections
RS-232
(DCE)
RS-485
SUPPLY
ETHERNET
(HUB)
SETUP
RUN
100M
LINK
B A
-
945U to DCE (Modem)
RD
TD
SG
RTS
CTS
DSR
DTR
DCD
RD
TD
SG
RTS
CTS
DSR
DTR
DCD
2
3
5
7
8
6
4
1
2
3
5
7
8
6
4
1
DB-9 MALE
(945U is Female)
DB-9 FEMALE
(DTE is Male)
945U to DTE (Host)
RD
TD
SG
RTS
CTS
DSR
DTR
DCD
RD
TD
SG
RTS
CTS
DSR
DTR
DCD
2
3
5
7
8
6
4
1
2
3
5
7
8
6
4
1
DB-9 MALE
(945U is Female)
DB-9 MALE
(DCE is Female)
Digital input and output wiring
The digital input/output (DIO) channel can be wired as either input or
output.
RS-485
SUPPLY
B A
+
-
DIO
COM
Max.
30 Vdc
0.5A
DC Load
(relay)
COM DIO
B A
Digital InputDigital Output
RS-232
(DCE)
B A
RS-485
SUPPLY
B A
+
-
DIO
COM
Voltage-Free Contact
or Transistor Device
COM DIO
Connect to Ground as close
to the module as possible
NOTE
All connections must be SELV <50 Vac and <120 Vdc.
If the wireless Ethernet modem is installed as Category 3
equipment, it must be installed in an enclosure that maintains
an ingress protection rating of IP54 and meets the enclosure
requirements of EN50014 or EN60079-0.
If the wireless Ethernet modem is installed in a hazardous
environment, coaxial cable must be installed in a metallic conduit,
per NEC requirements.
Digital Output will activate for approximately 5 seconds during the
device power up sequence.
WARNING
The wireless Ethernet modem enclosure contains aluminum and is
considered to constitute a potential risk of ignition by impact or friction.
This must be taken into account during installation.
The non-metallic cover of the wireless Ethernet modem constitutes an
electrostatic discharge hazard. Clean only with a damp cloth.
The following illustration shows the ports and switches on the
945U-E. The Ethernet port is wired for a hub or switch.
RS-232
(DCE)
B A
RS-485 SUPPLY
ETHERNET
(HUB)
SETUP
RUN
100M LINK
B A
+-
DIOCOM
Factory
Default
Switch
RS-232 Port
RJ-45 Ethernet Port
(connects to hub)
RS-485 Resistor
Termination Switch
B A
Power supply wiring
The device power supply –Ve terminal is not isolated from earth/
ground.
* Connect the negative
( – ) supply terminal
and the GND screw
(located on the rear of
the module) to earth/
ground as close to the
device as possible.
Do not connect the
positive ( + ) supply
terminal to earth/
ground.
B A
RS-485
SUPPLY
B A
+
-
DIO
COM
9-30 Vdc
Supply
2A Fuse or
Circuit Breaker
COM
+-
B A
CAUTION! Avoid ground loops.
B A
RS-485
SUPPLY
B A
+
-
DIO
COM
B A
115S-xx 115S-xx
RS-485
B A
B A B A
–
+
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Eaton 945U-E Installation guide

Eaton
Brand
Eaton
Model
945U-E
Category
Flat panel accessories
Type
Installation guide
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