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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
•
20-column by 8-line in 6x8 font
Power by Li-ion
•
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
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
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.
LCD
with selection between 16-column by 4-line in 8x16 font and
880mAH Rechargeable Battery-pack.
@ 3.6V
Direction
Description
Not support
Input
Receive date
Output
Transmit date
Output
Data Terminal Ready
Reference
Input
Data Set Ready
Output
Request to send
Input
Clear to send
Not support
© 2003 Wasp Technologies, Inc.
Ground
Page 29 of 41
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