# Physical Layout of the Reader

WARNING: LASER LIGHT, DO NOT STARE INTO BEAM
DataMan 8600 Reader
1 | UltraLight
2 | Laser aimer
3 | Trigger (press and hold to read)
4 | Communication module insertion point
5 | Indicator light
6 | Lanyard hook
7 | Extended Read Attempts button

By default, the Extended Read Attempts button of the DataMan 8600 is used for Tuning Optimization. Tuning Optimization automatically picks the best Read Setup for the current decode and sets it as Read Setup 4 in the DataMan Setup Tool, locking in Symbology, Exposure, Lighting Settings, Focus, etc. This provides snappier reading when the same type of code is read repeatedly. To execute Tuning Optimization, press and hold the Extended Read Attempts button until a yellow/green light flashes, then let go of the button. The lights continue to flash until a code is read. When pressing the trigger to read a code, the lights cycle, performing a burst trigger through the enabled Read Setups, then the flashing stops. A beep and solid green light signifies that tuning is over and the reader is optimized. You can undo tuning by holding the Extended Read Attempts button again until the indicator turns red.

Alternative reading options that are utilized by the Extended Read Attempts button can be selected under System Settings/TUNE Button:

- Set Match String: After arming the device (by holding the Extended Read Attempts button) with the optical button, the next trigger sets the read code as a Match String (feature key required for Match Strings to be available).
- Enable verifier: After arming the device (by holding the Extended Read Attempts button), triggering enables verification on on the read code (feature key required for verification to be available).

To disable the Extended Read Attempts button, use Disable Reader Button under System Settings/TUNE Button in Setup Tool.