Campbell TX321, Product Manual, Page: 29 / 86

TX321 Transmitter
17
The
Status
LED only lights after the
Fault
button has been pressed. Press and
hold the Fault button for about 2 seconds. The Status LED flashes once to
indicate the fail-safe has not been tripped. If the LED flashes twice, the fail-
safe has tripped. To clear the fail-safe, press and hold the Fault button for
about 10 seconds
Holding the Status button for 1 second before releasing causes the TX321 to
run a diagnostics routine. The results of the diagnostics routine are indicated by
the LEDs in the following order:
1. All of the LEDs will light green, then red, then yellow to show that all
LEDs and states are functional.
2. The LEDs indicate the power supply voltage, as seen by the internal radio
module. The LEDs collectively represent a level indicator by counting the
number of LEDs that are on.
LED 12+ Volts 11.3 to 12 Volts 10.8 to 11.3 Volts < 10.8 Volts
GPS Green OFF OFF OFF
Data Yellow Yellow OFF OFF
Transmitting Yellow Yellow Yellow OFF
Status Red Red Red Red
3. The GPS LED turns on to indicate GPS and real-time-clock (RTC)
synchronization state, that is “Has the TX321 received a GPS fix yet?”
Colo
u
r State
Green RTC is synched to GPS
GPS location coordinates are acquired
Yellow RTC is not synched to GPS
Red GPS fix and time synch is not complete
4. The Data LED turns on when data is waiting to be transmitted in the timed
and/or random transmission buffer(s). If data is present in both the timed
and random transmission buffers, the Data LED lights up green then
yellow.
Colo u r State
Green There is data in timed transmission buffer
Yellow There is data in the random transmission buffer
Red Neither buffer contains data
5. The Transmitting LED turns on to indicate if the transmitter is enabled or
disabled due to a configuration issue or fault.
Colo u r State
Green Enabled for transmission
Red Disabled – will not transmit