Access ATB420 Series Service Manual page 14

Access keyboards ATB 420/421 Multi-Function Keyboard Product Specification and Service Guide
For keyboard PS/2 or Serial outputs
Keying any of the numbers or alpha characters (1 to 8) will toggle the parameter for that
parameter, e.g. keying 6 will change from SITA to ARINC protocol and vice versa, keying 4 will
disable or enable the data-parsing feature.
Keying any of THE alpha characters (A to E) will toggle the parameter for that parameter, e.g.
keying 'C' will change the OCR output from keyboard to serial and vice versa. Key 'E' sets the inter
character delay from 1 (fastest) to 8 (slowest)
After making the required changes, key 'S' to save the new settings in the keyboard and terminate
the set-up process. Alternatively key 'Q' will exit without saving changes made. IT IS IMPORTANT
TO KEY EITHER 'S' OR 'Q' BEFORE TERMINATING THE PROGRAM. Please note that changes
made will not take effect until the keyboard is power cycled.
Notes.
1. ARINC protocol does not allow 7 bit data on the host port.
2. 7 bit host interface is incompatible with expanded JIS.
3. The keyboard firmware version and build reference i.e. 'X' is displayed with the menu.
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