Intermec MicroBar NX Reference Manual page 144

RS-232—Output to host system
NAK negative acknowledge character
Scanning NAK activates the ACK/NAK protocol.
The MicroBar NX will emit 6 error beeps if it receives a negative acknowledge (NAK) 3
times after sending a message or if the timeout is reached and no ACK has been received.
Not Used (*)
To use a different character for NAK:
1. Scan Compose Other NAK Character.
2. Scan the desired character code (
Compose Other NAK Character
134
NAK (HEX 15)
ASCII character codes ).
MB/NX/RM/00/E/970131