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Operating Instructions 7
RF Communication Problems
If the RF link device and the printer are not communicating, try each of
these suggestions to correct the problem.
♦ Change or recharge the terminal’s battery.
♦ Have your System Administrator ensure that the following
communication parameters are set on both the terminal and the
printer:
−
8 data bits
−
No parity
−
9600 baud
−
1 stop bit
−
DTR flow control (on the printer)
RTS/CTS flow control (on the terminal).
NOTE: The application on the terminal should be written with the
parameters built in.
♦ Re-link the printer and RF link device.
♦ Move the modules closer than three meters apart.
♦ Move the RF link device and printer around to find the best relative
position between the two.
♦
Swap in new devices (printer or RF link device) to narrow the problem
down to a particular device.
♦
Make sure no other RF devices are within the 20-foot zone because
they may obscure the intended linking.