Elpro Technologies 945U-E Installation Manual

Install Guide 945U-E/E1
945U-E/E1 wireless Ethernet modem
installation guide
This equipment is suitable for use in Class I Division 2 groups A, B, C and D
hazardous locations, or nonhazardous locations only.
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. .
NOTE
WARNING
Effective December 2022
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/E1 to earth/
ground.
2. Install the antenna.
3. Connect the 945U-E/E1 to a DC power supply and power on.
4. Connect the 945U-E/E1 to your computer via Ethernet and configure the
945U-E/E1. 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/
E1.
Figure 1. Antenna Installation
Wavelength: 13" (33 cm)
Surge Arrestor
(recommended)
Coaxial Cable
GND
945U-E/E1
M4 x 5 mm
GND
at least 11 AWG (4 mm
Module Provide good ground
Connection connection to mast,
module, and surge
arrestor.
If ground conditions
are poor, use more
than one stake.
Antenna* 1 Wavelength
(minimum)
Stress
Relief
Loop
Weatherproof
Connections
(recommended:
3M 23 self-
™
bonding tape)
Mast
Earth Conductor
at least 5 AWG
(16 mm )
2
* For maximum
range, install
above local
obstructions.
)
2
Earth Stake