43
5.4 Reliability
5.4.1 DT-X11
Table 5.18
Item Specification
Remark/Condition
Backlight 5,000
hours
At half-life period
Scanner module
10,000 hours
C-MOS Imager
300,000 hours
USB connector
5,000 times
PC Card slot cover
100 times
Trigger keys
1,000,000 times Each trigger key
Other keys
500,000 times
Mounting/removing of
DT-X11 to/from the Cradle
10,000 times
Key input
800,000 times
With 0.8R polyester stylus with load of 250g
applied
Touch panel
Writing 100,000
with
Katakana
characters
MTBF
64,685 hours
Electronic parts only
MTBF (WLAN module)
27,000 hours
Charging and discharging
cycle of battery pack
300 times or more Applicable to HA-A20BAT / DT-5025LBAT
5.4.2 DT-160IOE/DT-169CHGE
Table 5.19
Item Specification
Remark/Condition
MTBF for electronics parts
50,000 hours
Mounting/removing DT-X11 to/from Cradle
20,000 times
Power switch
5,000 times
Switch
DIP switch
10 times
USB
500 times
RS-232C 500
times
No. of ON/OFF times of the
connector
RS-422
100 times
No. of ON/OFF times of the power jack
1,500 times
