Flash Technology VANGUARD FTS 370d, Reference Manual

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16 Revision 10 – 1/09/2015 FTS 370d/w/r

Ensure that the installation is
watertight.
Note: See Cellular Antenna and GPS
Antenna for additional information
regarding the Antenna Mounting Bracket
Kit.
Cellular Antenna
A Cellular antenna (Verizon magnetic
mount or AT&T body mount) is required
with either of the optional cellular modems
shown in Figure 6-1. The supplied antenna
mounting bracket’s top plate accommodates
either the magnetic mount or body mount
style antenna as shown in Figure 2-2.
Figure 2-1 shows the body mount style
antenna installed with the photodiode and
GPS antennas.
The antenna connects
directly to the modem as shown in Figure 2-
24. Follow the method below to install the
antenna.
The system is shipped with the antenna
preinstalled and the antenna cable’s SMA
connector torqued to specification onto the
modem’s antenna connector for optimal
performance; do not remove or disconnect
unless replacing the modem or antenna.
Important! For best communication
performance and to minimize potential for
surge
damage to the modem radio
module, it is very important that the
supplied antenna mounting bracket be
used for mounting the antenna and that
the bracket be grounded with a minimum
14 AWG Ground wire connected to the
site Grounding System.
Also, if any
excess antenna cable is coiled up, the coil
diameter must not be less than 18 inches.
Maximum torque for the antenna’s SMA
connector must not exceed 8 inch-pounds
(90 N-cm) using a 5/16’” torque wrench.
Damage to the modem may occur if the
connection is over tightened.
Choose a location for mounting the cellular
antenna that will provide optimal reception.
The
included mounting bracket can
simultaneously accommodate a Vanguard
Photodiode, Cellular Antenna, and GPS
Antenna as shown in Figure 2-1.
Note: The antenna must be mounted
outdoors to ensure optimal reception.
See “Photodiode Mounting” and “GPS
Antenna”
for additional considerations
when selecting a mounting location for the
Antenna Mounting Bracket.
1. Mount the Antenna Mounting Bracket
using one of the following methods:

Wall Mount: Use screws (not
included) to mount to the outside
wall of a shelter.

Horizontal Unistrut Mount: Use
spring-nuts (not included) to mount
to unistrut.

Vertical Pole or H-frame post
Mount: Use 3” U-bolt (included) to
mount to pole or H-frame post. The
bracket permits use of larger U-bolts,
up to 5”.
Important! Regardless of the mounting
method selected, the antenna bracket
must be grounded with a minimum AWG
14 Ground wire connected to the site
Grounding
System. Observe proper
Grounding procedures.
2. The cellular antenna
must be mounted at
the center of the bracket
as shown in
Figures 2-1 and 2-2. Follow the location
recommendations noted in “Photodiode
Mounting” and “GPS Antenna” if it is
installed along with the photodiode
and/or GPS antenna.
3. To install the bulkhead mount style
antenna, loosen the antenna mounting
nut and washer and slide the antenna
mount through the bracket’s center
slot. Tighten the hardware.
4. Secure the antenna cable to the mounting
structure using cable ties.
5. Coil up any unused antenna cable inside
the SC 370 enclosure. The diameter of
the coil should be as large as possible.