Array Solutions Four Square Controller
2
www.arraysolutions.com
Array Solutions
Ofc: 972 203 2008
350 Gloria Rd.
Fax: 972 203 8811
Sunnyvale, TX 75182
Wiring the system:
Take the cover off the switch box and unwrap the circuit board. Wire the control cable before
mounting the board to the box.
You will need a cable with 5 wires. Small gauge wires are fine and will fit inside the boxes better
than large rotor cable. For runs of less than 500 feet #18 or larger gauge stranded wires will be
adequate. The relays draw only 120 ma at 12V DC.
You will also need a regulated DC power supply. A 13.8VDC 1 amp power supply is sufficient.
Please use a reliable power source, since wall wart transformers have a habit of falling out of
plugs and failing in the middle of a contest.
The silk-screen on the PCB indicates where to wire the +12 V DC (+13.8V DC) supply and its
RETURN or GND wire to the Power Supply.
Wire the control switch PCB to the relay box per the following Table 1.
Control Switch PCB Terminal Strip
Relay Box Terminal strip
1 - no wire Default position direction A
No connection and no terminal 1 in this box
2 - Direction B
2
3 - Direction C
3
4 - Direction D
4
5 - no wire Default position direction A
5 no connection
6 - OMNI directional
6
+12V - wire to your 13.8 V DC supply
GND - Ground return to your DC supply
GND return wire back to control switch
Table 1
Lightning Protection:
Array Solutions recommends the use of proper lightning and surge protection at the
station end for both the control and RF cables. MOV protection is included in the Four-
Square relay box. Devices such as the I.C.E. model 348 Transient Suppressor and 303U
Coaxial Impulse Suppressor / Arrestor products that Array Solutions can provide are very
effective. For additional safety, we recommend the use of a multi-terminal connector on a
short length of control cable so you may disconnect the control unit from the control
cable.
Preparation now can save valuable radios later.
Place the control switch PCB inside the control switch and secure the PCB in place with the
rotary switch hardware. The LEDs should just protrude through the holes provided for them.
Use the tie wraps supplied as a strain relief when the control cable is fed through the grommet
hole. Snug the tie wrap next to the hole in the back of the box to prevent the wire from being
pulled and stressing the PCB.
Do the same with the 12V-power wires you will supply through the other grommet hole.
Relay Box:
Route the control cable through the rubber grommet hole in the relay box tray. Use a Ty-wrap™
as a strain relief. The relay box terminal strip is marked to indicate the connection to terminals.
See
Table 1
above for the proper connections. There is no terminal 1 since it is the default
position. The relays are bypassed with MOVs, capacitors, and diodes for RF and lightning
suppression. See
Fig. 2
below which is a photograph of the inside of the phasing box.
