Telxon PTC-921 DOS, User Manual

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1. The PTC-921 DOS’s keyboard has 15 keys: 10 numeric keys (0 through 9), 4 function keys (ESC, ENT, ., and -), and a SCAN key. The numeric
keys are used to type data into the PTC. The function keys can be programmed via the PTC’s application to perform a specific function.
Pressing one of the top three keys (ESC, SCAN, or ENT) turns on the PTC.
ESC key
Pressing this key twice turns off the PTC.
SCAN key
Pressing this key activates the PTC’s internal laser scanner, allowing you to scan bar codes. Note: Your application program may not support
scanned data for all fields. Consult the documentation for your application to determine when the scanner and SCAN key are enabled.
ENT key
This key can be used to enter data into the PTC’s memory.
- key
This key can be used as a backspace key to erase the last character entered.
2. Pressing these buttons (one on each side of the PTC) releases the battery pack, allowing it to be removed from the PTC.
3. The PTC’s monochrome black-on-white liquid crystal display (LCD) screen shows the information you type or scan into the PTC as well as
messages from the PTC or host computer. The screen can show 2 lines of information with 12 characters each.
4. The laser light emitted from the PTC’s internal laser scanner exits the unit through this lens.
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Do not stare into the laser beam or point the scanner at anyone’s eyes while the scanner is active; permanent eye damage could result.
3. Display
1. Keyboard
4. Scanner lens
2. Battery Release button
Figure 1. The PTC-921 DOS (front view)
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