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INTRODUCTION
The Magnetic Stripe Reader & Writer (GM2250) is a personal computer peripher-
al device that reads and writes magnetic stripe cards that meet ISO 7811 standards
for a typical credit card. Cards are manually swiped through the slot to perform a
reading and/or writing operation. Data can be written and verified (read) with one
swipe. The GM2250 is designed to support several magnetic stripe track formats
defined by ISO Standard formats or by User (custom) data formats. All formats
use ISO data bit encoding (writing) and either 210 or 75 bits per inch (BPI) data
densities. The GM2250 can read and write both High coercivity and Low coer-
civity (Hi-Co & Lo-Co) magnetic stripes, depending on model.
The enclosure is a molded plastic or die cast housing that provides weight and sta-
bility for excellent performance. The RS232 communication interface is through
an attached six-foot cable. A separate power adaptor is required for the GM2250
for writing to cards.
This document provides basic information on see detailed information & instruc-
tions provided in the User Manual on the Workshop CD.
INTRODUCTION
The Magnetic Stripe Reader & Writer (
GM2250
) is a personal computer peripher-
al device that reads and writes magnetic stripe cards that meet ISO 7811 standards
for a typical credit card. Cards are manually swiped through the slot to perform a
reading and/or writing operation. Data can be written and verified (read) with one
swipe. The
GM2250
is designed to support several magnetic stripe track formats
defined by ISO Standard formats or by User (custom) data formats. All formats
use ISO data bit encoding (writing) and either 210 or 75 bits per inch (BPI) data
densities. The
GM2250
can read and write both High coercivity and Low coer-
civity (Hi-Co & Lo-Co) magnetic stripes, depending on model.
The enclosure is a molded plastic or die cast housing that provides weight and sta-
bility for excellent performance. The RS232 communication interface is through
an attached six-foot cable. A separate power adaptor is required for the
GM2250
for writing to cards.
This document provides basic information on see detailed information & instruc-
tions provided in the User Manual on the Workshop CD.
USB
The USB interface uses PC compatible communication drivers, which
emulate a RS232 COM port operation through an USB serial connection.
This approach allows the application talk to the reader through a virtual COM
port. Drivers are required for USB operation. See the GM2250 User Manual
for more information on installing the drivers.
A 6.0’ cable with a Serial A Plug and a 2.1 mm power Jack molded into a
pigtail of the cable. The following is signal pin-out of the connector:
USB connector
PIN
Signal
Direction
1
USB +5V
Not connected
2
-Data
In/out
3
+Data
In/out
4
Ground
--
CASE
Chassis ground
Connected to cover
POWER JACK
Center pin +24VDC
In
Ring
Signal Ground1
--
Table 2, USB cable
Interface
The communication parameters (port settings) are fixed for USB operation.
The parameters are:
Baud rate:
9600
Data bits:
8
Parity:
None
Stop bit:
1
USB
The USB interface uses PC compatible communication drivers, which
emulate a RS232 COM port operation through an USB serial connection.
This approach allows the application talk to the reader through a virtual COM
port. Drivers are required for USB operation. See the
GM2250
User Manual
for more information on installing the drivers.
A 6.0’ cable with a Serial A Plug and a 2.1 mm power Jack molded into a
pigtail of the cable. The following is signal pin-out of the connector:
USB connector
PIN
Signal
Direction
1
USB +5V
Not connected
2
-Data
In/out
3
+Data
In/out
4
Ground
--
CASE
Chassis ground
Connected to cover
POWER JACK
Center pin +24VDC
In
Ring
Signal Ground1
--
Table 2, USB cable
Interface
The communication parameters (port settings) are fixed for USB operation.
The parameters are:
Baud rate:
9600
Data bits:
8
Parity:
None
