Video Subsystem; Power Supply - Honeywell HX2 Reference Manual

Video Subsystem

The QVGA touch screen is a 2.5" (6.3 cm) diagonal viewing area, 320 by 240 pixel Transflective Active Color LCD. The turn-off
timing is configured through the Start > Settings > Control Panel > Display > Backlight icon. The display controller supports
Microsoft CE 5.0 graphics modes.
A touch screen allows mouse functions (tapping on the display or signature capture) using a stylus. The touch screen has an
actuation force with finger less than 100 grams.
The color display has an LED backlight and is optimized for indoor use. The display appears black when the mobile device is in
Suspend Mode.

Power Supply

The HX2 uses two batteries for operation. A Lithium-Ion (Li-Ion) battery supplies power to the HX2 only when tethered to the
HX2. The main battery is either the 2000 mAh (Standard) or the 4000 mAh (Extended) battery. Only one main battery can be
tethered to the HX2 at a time. The batteries can be hot-swapped after the HX2 is placed in Suspend mode.
The internal backup battery is a 50 mAh Nickel Cadmium (NiCad) battery. The backup battery is recharged indirectly by the
HX2 with a tethered battery. Recharging maintains the backup battery near full charge at all times. When the backup battery is
fully drained, it may take up to 5 hours to recharge. The capability to discharge the backup battery is provided (Start > Settings
> Control Panel > Battery) to allow the user to condition the backup battery in order to recover full battery capacity. The backup
battery must be replaced by qualified service personnel. The backup battery has a minimum 2 year service life.
When the HX2 is docked in a powered desktop cradle, the HX2 receives USB/serial signals through the cradle connector
on the bottom of the HX2 and the cradle connector in the HX2 desktop cradle docking bay. The HX2 must be firmly seated in
the docking bay before USB/serial communication can occur. An extra standard or extended Li-Ion battery pack can be
recharged in the powered desktop cradle while the HX2 is powered by the cradle. The standard battery is fully recharged in a
powered cradle in 4 hours. The extended battery is fully recharged in 8 hours.
Note: Docked HX2 -- An uninterrupted external power source (wall AC/DC adapter connected to the HX2 desktop cradle)
transfers signals from the USB ports in the front of the cradle and the serial port on the back of the cradle, to the HX2.
HX2 frequent connection to a fully charged tethered battery, is recommended to maintain backup battery charge
status, as the backup battery cannot be recharged by a dead or missing tethered battery.
The HX2 Battery Charger is designed to simultaneously charge up to six standard HX2Rechargeable Lithium Ion Battery
Packs in less than four hours, depending upon battery pack temperature and ambient conditions. The Extended battery packs
require less than 8 hours. The HX2 Battery Charger can charge up to five Standard and Extended batteries when they are not
tethered to the HX2.
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