User's Manual

DR-915 OEM DATA RADIO MODULE
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Revision I INTEGRATOR’S GUIDE
22
If and acknowledgement is not received within the Ack-Back™ Timeout
time, the radio will resend the packet up to the Ack-Back™ Retries
setting. If an acknowledgment is received during one of the retries, the
SNDING signal will return low, indicating a successful transmission. If
there is no acknowledgement after all retry attempts, the SNDING line
will return low and the FAIL line will go high to indicate a transmission
failure
Failed Ack-Back Transmission
After 3 Retries