Wavetronix Click 421 (bluetooth to serial converter) (CLK-421) - Quick-reference Guide - Manual (Page 2)

3
Attach the antenna
The Click 421 has a reversed polarity SMA antenna connector. A whip antenna can be used inside the
cabinet, though if it is inside a metal cabinet, the range will be diminished. An external antenna can also be
mounted on the exterior of the traffic cabinet or up on a pole for maximum range. In that case, it is recom-
mended you use a Click 250 wireless surge protector:
1 Connect the reversed polarity SMA connector of a coax cable to the Click 421 (antenna must be re-
moved), and connect the N connector to the nonbulkhead end of the Click 250.
2 Connect the N connector of another coax cable to the bulkhead end of the Click 250, and connect the
other end of the cable to the external antenna.
3 Attach a 12 AWG stranded copper grounding wire to the Click 250, then connect the grounding wire to
earth ground.
4
Use on-device configuration features
Use the device’s
configuration
features to make
sure the Click 421
is wired and work-
ing properly. The
Click 421 has four
LEDs that moni-
tor device activity
and help you select operating modes, as well as a push-button, labeled Mode Switch, also used for operating
modes.
1 Check LEDs to make sure the device has power.
2 Autobaud device to make sure it can talk to the sensor or other attached serial device (see table).
Hold the push-button to cycle through modes, then release when the desired mode is reached.
Selection Operating mode Running Completed
Autobaud – Release push-button when green LED is solid to
autobaud to sensor.
failure
success
Link Test (server) – Release push-button when blue LED is
blinking to perform a link test. The link test is covered in Part
10.
connection established
(LEDs on indefinitely)
connection not established
Reset – Release push-button when red LED is blinking to
reset to factory defaults.
LED activity indicating functions:
Red – Device has power
Blue – Shows when a link is successfully made over Bluetooth to an external device
Yellow – Device is transmitting data
Green – Device is receiving data