Eaton 945U-E Installation Manual
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