Speaker / Microphone Connections
A suitable Speaker / Microphone connection is provided on units with an internal
radio for monitoring and testing the radio channel.
1
6
RJ12 Speaker Mic Pins
Communication Indicators
The COMMS indicators show communication between Topcat and the Telemetry
Master.
Indicator Indication Meaning
VAD/COMMS
Green short blink A valid message for a different RTU was received
Green long blink A valid message for this RTU was received
Red Comms fail (no comms with the Master)
CHAN BUSY Yellow The radio transceiver is receiving RF on it’s channel
RX DATA Yellow Shows the data being received by Topcat
PTT Yellow Topcat is transmitting on the radio channel
TX DATA Yellow Shows the data being transmitted by Topcat
A short blink is about 0.1 seconds. A long blink is about 0.5 seconds.
Ready LED and Reset
Ready LED indication swampfox operating state
Green Normal
Topcat is operating normally
Red Defect Hardware or firmware fault
The RESET button is behind a small unmarked hole in the front panel near the
DISPLAY button. To reset and restart Topcat, press RESET briefly.
Other Front Panel Items
The COMMS LED illuminates red when Topcat cannot communicate with a master.
The DISPLAY button turns the front panel indicators on and off. The ready LED is
always enabled.
The ADDRESS SWITCHES set Topcat’s three digit RTU address.
Pin
Name
1 N/C
2 Speaker
3 PTT
4 Microphone
5 GND
6 GND
Topcat only examines the address
switches when it starts up or is reset
Installation Guide 5 IG-671-2.2-2015-Mar
