Symbol PTC-2124, User Manual

Page: 31 / 114

Accessories
PTC-2124 User’s Guide 19
Display contrast
If the screen is completely dark or
blank, press the Contrast button to
select an appropriate contrast level. The PTC screen’s contrast can be changed using the
Contrast button. Pressing this button adjusts the
contrast in one direction, from lightest to darkest.
Once the darkest setting is reached, the contrast
wraps back to the lightest contrast level.
Low-battery warning
The PTC warns you when the battery pack or the
bridge battery is running out of power.
See Appendix C for more information
on the Batt LED codes. The battery pack is monitored constantly. If power
runs low, the PTC sounds five sets of three short
beeps with a pause between sets, and the Batt LED
glows red. When you hear or see these warnings,
promptly save any data and recharge the PTC’s
battery pack.
The bridge battery is checked every time the PTC is
resumed. If the bridge battery is running out of
power, the PTC sounds five beeps, and the Batt LED
blinks red. If you hear or see these warnings,
immediately save any data and recharge the bridge
battery.
Accessories
Communication cradles
Two communication cradles are available for use with
the PTC-2124: the SC-1124 Desktop Cradle and the
VC-1124 Vehicle Cradle. These cradles recharge
simultaneously the PTC’s battery pack and a spare
pack and allow the PTC to communicate with a host
computer. Each cradle also provides Ethernet and
serial interfaces to external devices as well as a
keyboard connector.