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© 2003 Wasp Technologies, Inc.
4.2 FEATURES
•
16-bit Microprocessor, 16Mhz Clock
•
Real Time Clock Integrated Circuit (IC)
•
2.5MB
CMOS (RAM) Memory.
•
26
alphanumeric rubber keys with
1
scanner trigger switch
•
128x64
pixel graphic backlit
LCD
with selection between
16-column by 4-line in 8x16 font and
20-column by 8-line in 6x8 font
•
Power by
Li-ion
@ 3.6V
880mAH
Rechargeable Battery-pack.
•
3V 190mAH Lithium Data Backup battery.
•
Power Low Status Indicator for Main and backup batteries.
•
256KB Flash ROM, 128k for DOS-based system, the other 128K for user application program use.
4.3
I/O Ports
4.3.1 The WDT2200 has three interface ports:
An RS232 I/O serial port can be used to communicate with a host PC and normal
charge from RS232 cable when cable is connected with
9VDC/1A
power adapter.
Pin Signal
Direction Description
1
DCD
Not support
2
RXD
Input
Receive date
3
TXD
Output
Transmit date
4
DTR
Output
Data Terminal Ready
5
GND
Reference
Ground
6
DSR
Input
Data Set Ready
7
RTS
Output
Request to send
8
CTS
Input
Clear to send
9
RI
Not support
10
Bat(+)
11
Bat(-)
12
Ext 9V
4.3.2 Scanner
The WDT2200 has provision for an integrated laser or CCD scan engine and a
built-in decoder for reading bar code labels. There is a single
scanner-trigger
switch above the keypad. The scanning window of the integrated unit sits flush
with the top surface of the portable terminal.