HF680 Series User Guide 27
Scanner-Bioptic ACK/NAK Mode
Bioptic ACK/Nak On must be scanned so the scanner will wait for an ACK or NAK 
from a bioptic scanner after each packet is sent. The Scanner-Bioptic ACK/NAK 
Timeout (below) controls how long the scanner will wait for a response. Default = 
Bioptic ACK/NAK Off.
Scanner-Bioptic ACK/NAK Timeout
This allows you to set the length (in milliseconds) for a timeout for a bioptic 
scanner’s ACK/NAK response. Scan the barcode below, then set the timeout (from 
1-30,000 milliseconds) by scanning digits from the Programming Chart, then 
scanning Save. Default = 5100.