2-2
Controller Interface
Connect the WX-200 to the controller and repeater as shown in Figure 2-1B. PTT and transmit audio
from the controller are connected to the repeater's transmitter through the normally closed contacts
of the double pole double throw relay located in the WX-200. Set the power switch to on, the WX-
200 will announce the firmware version. When a weather alert is received, the relay will switch the
weather alert audio to the TX audio input and provide a PTT signal to key the transmitter.
CAT-200B
CAT-250
CAT-300DXL
CAT-700B
JX-6
JX-4
JX-25
JX-10
JX-11
JX-13
COR #1
CTCSS #1
PTT #1
TX AUDIO #1
RX AUDIO #1
GROUND
REPEATER
GND
TX
PTT
CTCSS
GND
RX
COR
JX-17
GROUND
JX-15
JX-14
USER OUT #2
USER OUT #1
WX-200
PTT OUTPUT
PTT INPUT
J4-3
J4-2
J4-11
J4-10
TX AUDIO OUT
TX AUDIO IN
J4-4
WX DISABLE
WX ENABLE
J4-9
J4-1
PTT GROUND
J4-8
GROUND
CAT-200B
JX=J3
CAT-250
JX=J2
CAT-300DXL JX=J3
CAT-700B
JX=J4
Figure 2-1B
The WX-200 receiver can be activated anytime, by turning on user function switch output #1 which
grounds the WX ENABLE pin (J4-14) on the WX-200 receiver.
It may be desirable to stop additional alerts when a sky-warn net is activated. Turn on user function
switch output #2. This grounds the WX DISABLE pin (J4-4) on the WX-200.
When a weather alert is received, the WX ALERT START OUTPUT (J4-7) will provide a one second
positive DC voltage [TTL] level to be used to activate other equipment at the repeater site.
Included in the alert packet is the length of the alert. When the alert time has expired, the WX
ALERT STOP OUTPUT (J4-6) will provide a one second positive DC voltage [TTL] level to be used to
activate other equipment at the repeater site.
