17
The
DXE-EC4
uses an internal terminal plug labeled “G 1 2 3”.
DXE-EC-4
DXE-RFS-2
G
to
G
1
to
A
2
to
B
3
to
C
Direct Wire connections between the DXE-EC-4 and DXE-RFS-2
For systems that have 1/2-wavelength or greater spacing between the receive four square array and
any transmitting antenna, The
TVSU-1B
may not be needed. The wiring diagram above shows
wiring between the
DXE-EC-4
and the
DXE-RFS-2
. If you are using the
DXE-TVSU-1B
, the
wiring connections are shown in
Diagram 1 - Default Configuration
.
Control lines (usually BCD ) can normally use good quality CAT5e cable (4 twisted pairs of 24
AWG wire) for runs up to 1000 feet. Typical DX Engineering BCD control lines requirements are
+12 VDC at 25 milliamps.
Depending on the number of control lines needed (usually 3 or 4) you can double up the twisted
pairs of CAT5e cable, or use control wire that is at least 22 AWG, allowing runs up to 1500 feet. If
you use a cable with more conductors, it is a good idea to tie the unused conductors to ground.
For longer runs of control cable, use a line loss calculator to ensure you supply the proper control
levels needed.
