To set the amount of time the device communication enabler waits before sending a control character, start of header, or start of a data block.


0 ms

for any CCM to CCM direct wire connections


10 ms

for situations causing slow response times


500 ms

for radio transmissions


500 ms

with time outs disabled for testing.

Default Value

0 ms



Pin 11 on the J1 port provides a keying signal for radio transmission.  The keying signal allows the radio transmitter to warm up for the length of the turnaround delay before data begins flowing.  

When the 500 ms turnaround delay with timeouts disabled is selected, timeout error conditions are ignored.

Note: The configuration in software must match the configuration on the CCM card for this to work correctly.

More information

About CCM2 Communications.