7
RADIO
RCA type connector. Connect this jack to your transceiver's amplifier keying, TX, or relay (RLY)
output even if you are not using an amplifier. This is a normally open connection that must be
pulled to ground. It accepts any open voltage up to 20 volts positive and sources 15 mA when
pulled to ground. It nominally supplies 12 Vdc positive open circuit. Anything below +2 Vdc is a
valid logic low, anything above +3 volts is a valid logic high.
While the "RADIO" input is grounded (transmit mode), if you press any of the pushbutton switches
the corresponding LED(s) will flash and the unit will not switch positions until you stop
transmitting. This avoids 'hot switching'.
Connector
Five wire connector block labeled
G A B C G
. Use
DXE-CW9
CAT 5 UV resistant cable (or
equivalent) is recommended and it also has a PE (polyethylene) jacket for long lasting direct burial
to make the connection from the Transmit Four Square Control Console to the DX Engineering
Transmit Four Square System Phasing Unit. Wire
A to A, B to B, C to C, and either G to either G
(both Gs are Ground).
For other systems that usually require a 3 conductor cable, we suggest the use of
COM-CW4 Four
Conductor Control Cable f
our conductor control cable (recommended to allow for future upgrade
to DXE-TFS4 system)
Output current is 700 mA maximum on any or all ports. The output is relay protected for maximum
lightning and RF protection. This device is internally protected against short circuits.
The
DXE-CW9 CAT5
cable has #24 AWG wire. Based on current and voltage drops, CAT 5
cable is capable of running 400 feet from the Four Square Control Console to the Four
Square Phasing Unit.
For control cable runs from 400 feet up to 750 feet, doubling up the wire pairs of the
DXE-
CW9 CAT5
cable (two wires per connection) will effectively make the wire gage go from 24
AWG to 20 AWG, thus allowing longer runs between the Four Square Control Console and
the Four Square Phasing Unit.
This controller is compatible with other 12-15 volt dc four square systems. The output voltage
always equals the supply input voltage. It counts BCD from zero through 4, giving 5 total positions.
Output A
Output B
Output C
Position 1
0
0
0
Position 2
+12 to 15 Vdc
0
0
Position 3
0
+12 to 15 Vdc
0
Position 4
+12 to 15 Vdc
+12 to 15 Vdc
0
Omni
0
0
+12 to 15 Vdc
Table 1 - Control Logic
