12
System Operational Overview
The
DXE-RFS-SYS-4P
system is comprised of the
DXE-EC-4
BCD Control Console and the
DXE-RFS-2
Control Unit. These units interconnect and work together using factory default
settings.
The
DXE-EC-4
BCD Control Console supplies the n12 Vdc operational voltage as well as
the +12 Vdc BCD control voltage. The operational voltage powers the
DXE-RFS-2
Control Unit
which subsequently powers the active receive elements. The BCD switching voltages cause the
DXE-RFS-2
to change the receiving direction of the array.
The
DXE-EC-4
Control Console is configured by default to output the BCD control voltages
needed by the
DXE-RFS-2
. The default direction for the array (toward Element 1) is selected when
LED 1 on the
DXE-EC-4
is illuminated. When positions 2 to 4 are selected on the
EC-4
, the array
switches directions.
Refer to
Diagram
1
for default connection details.
The
DXE-RFS-2
distributes the operating power to the active elements through the individual
element feedlines. The active elements do not work without power. Cutting power to the
DXE-RFS-2
also cuts power to the active elements which causes the
DXE-AVA-2
to ground the
vertical element. Operating with the
DXE-TVSU-1BA
Sequencer (inserted into the
EC-4
"C" to the
RFS-2
"C" terminal) makes this power switching function automatically.
An alternate configuration (refer to
Appendix A
) which uses the feedline coaxial cable for either
the operational power or the directional control voltages, can be used. This configuration requires
internal jumper changes in the
DXE-RFS-2
, along with additional hardware to couple the proper
voltage to the feedline. For directional control through the feedline, the
DXE-RFS-2
re12
Vdc, ─12 Vdc and 12 Vac. The
DXE-FVC-1
Voltage Coupler can be used to supply these voltages.
In any alternate configuration, do not use coaxial cable or other conductor for more than one
simultaneous use. Refer to
Diagram 2
for connection details of one of several alternate
configurations.
The only reason for using an alternate configuration is to make use of existing 2 or 3 conductor
control cable. Otherwise inexpensive four conductor control cable (
COM-CW-4
) and the default
configuration is recommended.
Installation
The
DXE-RFS-2
Control Unit can be mounted to a galvanized pipe driven into the ground. The
DXE-RFS-2
unit has been pre-drilled to accommodate up to a 2 inch OD pipe using an appropriate
clamp. If pipe mounting is desired, the optional
DXE-CAVS-1P
V-Bolt Saddle clamp for pipe from
3/4" to 1-3/4" inches OD is recommended, or
DXE-SSVC-2P
Stainless Steel V-Bolt Saddle Clamp
for 1" to 2" OD pipe. The controller can also be mounted on a sturdy wooden post, but provision for
grounding the
DXE-RFS-2
unit must be made.
Note:
UMI-81343
Never-Seez or
DXE-NSBT8
