Maintaining the PTC-921 DOS
11
Operating conditions
The PTC-921 DOS is designed to minimize the
intrusion of dust, dirt, and moisture. An optional
holster, listed in Appendix B, is recommended when
using the PTC in exceptionally harsh environments.
The PTC-921 DOS can be operated at temperatures
between 32 degrees F (0 degrees C) and 122 degrees F
(50 degrees C).
Handling the PTC
The following information will help to ensure you
receive safe, reliable, and trouble-free service from
your PTC-921 DOS.
•
Do not point the PTC’s scanner at anyone’s eyes,
and do not stare into the laser beam. Permanent
eye damage could result.
•
Do not open the PTC’s case. Only a trained
technician can service the parts inside the PTC.
•
Make sure the PTC is off before you replace the
battery pack.
•
Use only a Telxon-approved battery pack. Do not
attempt to connect any electrical device that is not
part of your PTC-921 DOS system to the PTC.
•
If you store a PTC containing a lithium-ion battery
pack in below-freezing temperatures for more than
1 hour, do not charge the battery pack until it
warms up to room temperature.
•
Protect the PTC from excessive heat, cold, and
moisture and from harsh, dirty environments.
19
Summary of Contents for PTC-921 DOS
Page 1: ...PTC 921 DOS User s Guide...
Page 2: ......
Page 3: ...PTC 921 DOS User s Guide Part Number 23451 000 02 Release Date 5 27 98...
Page 8: ...iv...
Page 32: ...24...
Page 35: ...Processor Type V20H 9 8304 MHz Software Operating system Telxon ROM DOS MS DOS 5 0 27...
Page 36: ...28...
Page 38: ...30...
Page 42: ...34...
Page 46: ...TXD Transmit data signal TXD indicates that a device is currently transmitting data 38...
Page 50: ...42...
Page 51: ......