Page: 21, Rs-232c serial port – AML M2800 User Manual
Page 21
Model M2800 USB Bar Code and Magnetic Card Reader
Page: 21
©2005 American Microsystems, Ltd. All Rights Reserved
2190 Regal Parkway • Euless, TX 76040
Phone 817.571.9015 • Fax 817.571.6176
Web Address: www.amltd.com
TRANSMIT SPEED
This option sets the speed at which keyboard data will be transmitted to the PC. Some computer systems may
require the transmission speed set to a slower speed. The default setting is 3, Fast.
0)
SLOW
1)
MEDIUM
SLOW
2) MEDIUM
FAST
3)
*
FAST
DIAGNOSTICS
Open any text entry editor, such as Notepad®, before running this test. This option executes a self-test program
that performs the following tests on the M2800:
Report Firmware Version Number
Report Serial Number
Internal Ram Test
EPROM Checksum Test
EEPROM
Test
LED
Test
Beeper Test
ASCII Character Set Test, with backspace (erases X at last character of test)
Report Copyright
The above tests are performed and their status is displayed on the PC. If there are problems related to the test
results, please contact American Microsystems' technical support at (800) 648-4452 during the hours 8:30 A.M. to
5:30 P.M. Monday through Thursday and 8:30 A.M. to 5:00 P.M Friday.
RS-232C SERIAL PORT
The RS-232C serial port located on the rear panel of the M2800 accepts serial ASCII data and re-transmits it to
the computer through the USB port. The serial input data appears as though it was typed in from the computer
keyboard.
The connector pin assignments for the serial port interface are listed below:
PIN
SIGNAL DIRECTION
1
DCD
Input,
Not
Used
2
Receive
Data
Input
3
Transmit
Data
Output
4
DTR
Output,
Not
Used
5
Ground
Both
6
DSR
Input,
Not
Used
7
RTS
Output,
connected
to
CTS
8
CTS
Input,
connected
to
RTS
9
RI
Input,
Not
Used
The serial input port will accept almost any type of RS-232C serial device such as:
Electronic
scales
Table top laser scanners
Side scan laser scanners
Portable & fixed terminals