Magtek MICR Plus Product manual

MICR Plus
RS-232 WITH OPTIONAL 3-TRACK MSR
TECHNICAL REFERENCE MANUAL
Manual Part Number: 99875081 Rev 5
APRIL 2003
REGISTERED TO ISO 9001:2000
1710 Apollo Court
Seal Beach, CA 90740
Phone: [phone]
FAX: [phone]
Technical Support: [phone]
www.magtek.com

ii
Copyright©1997-2005
MagTek®, Inc.
Printed in the United States of America
Information in this document is subject to change without notice. No part of this document may be
reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose,
without the express written permission of MagTek, Inc.
MagTek and MICR Plus are registered trademarks of MagTek, Inc.
REVISIONS
Rev Number Date Notes
1 10 Sep 97 Initial Release
2 1 Oct 97 Sec 1, p.2, Changed cable number
from 30012526 to
30015126
3 5 Nov 97 Appendix F, Revised Pin Numbers on
Figures F-1 and F-2.
4 2 Aug 01 Front Matter, Agency page: Changed
FCC to Class B; editorial correction for
UL/CUL.
5 24 Apr 03 Front Matter: added ISO line to logo,
changed Tech Support phone number,
added new warranty statement

iii
LIMITED WARRANTY
MagTek warrants that the products sold to Reseller pursuant to this Agreement will perform in accordance with
MagTek’s published specifications. This warranty shall be provided only for a period of one year from the date
of the shipment of the product from MagTek (the “Warranty Period”). This warranty shall apply only to the
original purchaser unless the buyer is authorized by MagTek to resell the products, in which event, this warranty
shall apply only to the first repurchase.
During the Warranty Period, should this product fail to conform to MagTek’s specifications, MagTek will, at its
option, repair or replace this product at no additional charge except as set forth below. Repair parts and
replacement products will be furnished on an exchange basis and will be either reconditioned or new. All replaced
parts and products become the property of MagTek. This limited warranty does not include service to repair
damage to the product resulting from accident, disaster, unreasonable use, misuse, abuse, customer’s negligence,
Reseller’s negligence, or non-MagTek modification of the product. MagTek reserves the right to examine the
alleged defective goods to determine whether the warranty is applicable.
Without limiting the generality of the foregoing, MagTek specifically disclaims any liability or warranty for
goods resold in other than MagTek’s original packages, and for goods modified, altered, or treated by customers.
Service may be obtained by delivering the product during the warranty period to MagTek (1710 Apollo Court,
Seal Beach, CA 90740). If this product is delivered by mail or by an equivalent shipping carrier, the customer
agrees to insure the product or assume the risk of loss or damage in transit, to prepay shipping charges to the
warranty service location and to use the original shipping container or equivalent. MagTek will return the product,
prepaid, via a three (3) day shipping service. A Return Material Authorization (RMA) number must accompany
all returns.
MAGTEK MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, AND MAGTEK DISCLAIMS ANY
WARRANTY OF ANY OTHER KIND, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.
EACH PURCHASER UNDERSTANDS THAT THE MAGTEK PRODUCT IS OFFERED AS IS. IF THIS
PRODUCT DOES NOT CONFORM TO MAGTEK’S SPECIFICATIONS, THE SOLE REMEDY SHALL BE
REPAIR OR REPLACEMENT AS PROVIDED ABOVE. MAGTEK’S LIABILITY, IF ANY, TO RESELLER
OR TO RESELLER’S CUSTOMERS, SHALL IN NO EVENT EXCEED THE TOTAL AMOUNT PAID TO
MAGTEK BY RESELLER UNDER THIS AGREEMENT. IN NO EVENT WILL MAGTEK BE LIABLE TO
THE RESELLER OR THE RESELLER’S CUSTOMER FOR ANY DAMAGES, INCLUDING ANY LOST
PROFITS, LOST SAVINGS OR OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT
OF THE USE OF OR INABILITY TO USE SUCH PRODUCT, EVEN IF MAGTEK HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY.
LIMITATION ON LIABILITY
EXCEPT AS PROVIDED IN THE SECTIONS RELATING TO MAGTEK’S LIMITED WARRANTY,
MAGTEK’S LIABILITY UNDER THIS AGREEMENT IS LIMITED TO THE CONTRACT PRICE OF THE
PRODUCTS.
MAGTEK MAKES NO OTHER WARRANTIES WITH RESPECT TO THE PRODUCTS, EXPRESSED OR
IMPLIED, EXCEPT AS MAY BE STATED IN THIS AGREEMENT, AND MAGTEK DISCLAIMS ANY
IMPLIED WARRANTY, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
MAGTEK SHALL NOT BE LIABLE FOR CONTINGENT, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES TO PERSONS OR PROPERTY. MAGTEK FURTHER LIMITS ITS LIABILITY OF ANY KIND
WITH RESPECT TO THE PRODUCTS, INCLUDING ANY NEGLIGENCE ON ITS PART, TO THE
CONTRACT PRICE FOR THE GOODS.
MAGTEK’S SOLE LIABILITY AND BUYER’S EXCLUSIVE REMEDIES ARE STATED IN THIS SECTION
AND IN THE SECTION RELATING TO MAGTEK’S LIMITED WARRANTY.

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FCC WARNING STATEMENT
This equipment has been tested and found to comply with the limits for Class B digital device, pursuant to Part 15
of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a residential environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation.
FCC COMPLIANCE STATEMENT
This device complies with Part 15 of the FCC Rules. Operation of this device is subject to the following two
conditions: (1) This device may not cause harmful interference. And (2) this device must accept any interference
received, including interference that may cause undesired operation.
CANADIAN DOC STATEMENT
This digital apparatus does not exceed the Class B limits for radio noise for digital apparatus set out in the Radio
Interference Regulations of the Canadian Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux
appareils numériques de las classe B prescrites dans le Réglement sur le brouillage radioélectrique édicté par les
ministère des Communications du Canada.
UL/CSA
This product is recognized per Underwriter Laboratories and Canadian Underwriter Laboratories 1950.

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TABLE OF CONTENTS
SECTION 1. OVERVIEW ------------------------------------------------------------------------------------------------------ 1
FEATURES............................................................................................................................................... 1
ACCESSORIES........................................................................................................................................ 2
SPECIFICATIONS.................................................................................................................................... 2
SECTION 2. INSTALLATION ------------------------------------------------------------------------------------------------ 3
REQUIREMENTS..................................................................................................................................... 3
PORTS ..................................................................................................................................................... 3
SECTION 3. OPERATION----------------------------------------------------------------------------------------------------- 7
CHECK READING PROCEDURE ........................................................................................................... 7
CARD SWIPE PROCEDURE................................................................................................................... 7
LED INDICATORS ................................................................................................................................... 8
SECTION 4. COMMANDS ---------------------------------------------------------------------------------------------------- 9
INSTA-CHANGE CHECKS ...................................................................................................................... 9
PC PROGRAM......................................................................................................................................... 9
COMMAND FORMAT .............................................................................................................................. 9
SWA - SWITCH A COMMAND............................................................................................................... 10
SWA PARAMETERS.............................................................................................................................. 11
Baud Rate .......................................................................................................................................... 11
Data, Stop Bits, and Parity................................................................................................................. 11
CTS/DSR............................................................................................................................................ 12
Intercharacter Delay........................................................................................................................... 12
SWB - SWITCH B COMMAND............................................................................................................... 12
SWB PARAMETERS.............................................................................................................................. 13
Control Characters and MICR Data................................................................................................... 13
Communication Modes ...................................................................................................................... 14
Send Data After Error......................................................................................................................... 14
Send Status After Data ...................................................................................................................... 15
SWC - SWITCH C COMMAND.............................................................................................................. 16
SWC PARAMETERS ............................................................................................................................. 17
CMC-7 Character Set......................................................................................................................... 17
Invalid Command Response.............................................................................................................. 17
Active RTS ......................................................................................................................................... 17
Data Header....................................................................................................................................... 18
Card Data Message ........................................................................................................................... 18
HW - HARDWARE COMMAND ............................................................................................................. 18
HW PARAMETERS................................................................................................................................ 19
Disable/Enable Y Option.................................................................................................................... 19
Disable/Enable Tracks....................................................................................................................... 19
ID Card Decoding............................................................................................................................... 20
LE - LED COMMAND............................................................................................................................. 20
LE PARAMETERS ................................................................................................................................. 20
FC - FORMAT CHANGE COMMAND.................................................................................................... 21
VR - VERSION COMMAND................................................................................................................... 21
SA - SAVE COMMAND.......................................................................................................................... 21
RS - RESET COMMAND ....................................................................................................................... 21
APPENDIX A. FORMAT LIST---------------------------------------------------------------------------------------------- 23
APPENDIX B. CHECK READING----------------------------------------------------------------------------------------- 41
E13-B CHARACTER SET...................................................................................................................... 41
CMC-7 CHARACTER SET..................................................................................................................... 41
CHECK LAYOUTS................................................................................................................................. 42
MICR FIELDS......................................................................................................................................... 43
1-Transit Field .................................................................................................................................... 43
2-On-Us Field..................................................................................................................................... 43
3-Amount Field................................................................................................................................... 44

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4-Auxiliary On-Us Field.......................................................................................................................44
APPENDIX C. TROUBLESHOOTING GUIDE--------------------------------------------------------------------------45
REQUIREMENTS...................................................................................................................................45
SET-UP...................................................................................................................................................45
PROCEDURE.........................................................................................................................................45
APPENDIX D. RS-232 AUXILIARY PORT-------------------------------------------------------------------------------53
COMMUNICATION PARAMETERS.......................................................................................................53
HOST DATA TO AUXILIARY PORT ......................................................................................................53
APPENDIX E. DOWNLOADING--------------------------------------------------------------------------------------------55
REQUIREMENTS...................................................................................................................................55
PROCEDURE.........................................................................................................................................55
APPENDIX F. PIN LISTS-----------------------------------------------------------------------------------------------------57
APPENDIX G. ASCII CODES -----------------------------------------------------------------------------------------------61
FIGURES
Figure 1-1. MICR Plus-------------------------------------------------------------------------------------------------------- viii
Figure 2-1. Ports on the MICR Plus ----------------------------------------------------------------------------------------- 3
Figure 2-2. MICR Plus Connections----------------------------------------------------------------------------------------- 4
Figure 3-1. Check Orientation ------------------------------------------------------------------------------------------------ 7
Figure B-1. Personal Checks------------------------------------------------------------------------------------------------42
Figure B-2. Business Checks------------------------------------------------------------------------------------------------43
Figure C-1. Sensor Location -------------------------------------------------------------------------------------------------51
Figure D-1. IntelliPIN on Auxiliary RS-232 Port -------------------------------------------------------------------------53
Figure F-1. RS-232 Host Port, 8-Pin, RJ Socket------------------------------------------------------------------------58
Figure F-2. RS-232 Auxiliary Port, 6-Pin, RJ Socket-------------------------------------------------------------------59
TABLES
Table 1-1. Specifications------------------------------------------------------------------------------------------------------- 2
Table 3-1. LED indicators------------------------------------------------------------------------------------------------------8
Table 4-1. SWA Command---------------------------------------------------------------------------------------------------11
Table 4-2. SWB Command---------------------------------------------------------------------------------------------------13
Table 4-3. Control Characters -----------------------------------------------------------------------------------------------14
Table 4-4. Error and Status Codes-----------------------------------------------------------------------------------------15
Table 4-5. SWC Command---------------------------------------------------------------------------------------------------16
Table 4-6. HW Command-----------------------------------------------------------------------------------------------------19
Table 4-7. LED Control--------------------------------------------------------------------------------------------------------20
Table B-1. CMC-7 Nonnumeric Characters ------------------------------------------------------------------------------42
Table F-1. DB25 Interface Cable Pin List---------------------------------------------------------------------------------57
Table F-2. DB9 Interface Cable Pin List-----------------------------------------------------------------------------------57
Table F-3. RS-232 Host Port Pin List --------------------------------------------------------------------------------------58
Table F-4. RS-232 Auxiliary Port Pin List---------------------------------------------------------------------------------59

Figure 1-1. MICR Plus
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1
SECTION 1. OVERVIEW
The MICR Plus is both a MICR (Magnetic Ink Character Recognition) Check Reader and an
MSR (Magnetic Stripe Reader).
The MICR Plus, in a typical application, reads the magnetic data encoded on the bottom of
checks or magnetic stripe cards and transmits this data to a Host device. The Host device then
uses a specific authorization or verification process to validate a business transaction.
The use of the MICR Plus improves accuracy and speed because there is no manual data entry;
therefore there are no keying errors or unwanted delays.
The MICR Plus will communicate with the Host system using a standard RS-232 interface. All
data is transmitted as ASCII characters (See Appendix G). The MICR Plus has the capability of
supporting some hardware handshaking signals. (See Section 4, Commands.)
The MICR Plus also has an auxiliary RS-232 port for connection to another RS-232 device, such
as a PINPad or bar code reader.
FEATURES
•Available with MICR Reader only or with 3-Track or 2-Track MSR.
•Three track MSR - autodiscriminates different card formats: ISO (International Standards
Organization), CDL (California Drivers License), or AAMVA (American Association of
Motor Vehicle Administrators).
•Small footprint.
•Automatic parsing of MICR fields: transit, account, etc.
•Extensive list of formats to transmit MICR data.
•Optional error/status reporting for check reading.
•Reads E13-B or CMC-7 MICR fonts.
•Field Upgraded Changes– New programs or changes can be downloaded in the field (see
Appendix E).
•A single hardware platform supports all the interfaces available: RS-232, OCIA, and IBM
device emulations (MSR, Scanner, Feature Card) for an ECR (Electronic Cash Register).
•One auxiliary RS-232 port available. When connecting to an ECR Host, there are two RS-
232 ports available.

MICR PLUS, RS-232
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ACCESSORIES
•Interface Cable, DB-25 female, Part Number 22617504
•Interface Cable, DB-9, female, Part Number 22617506
•AC Power Adapter with Cable, Part Number 64300050
•SET-MICR Demo Program, Part Number 22000020 (Rev P or higher)
•MICR Reader Cleaning Card, Part Number 96700006
•Sample Checks, Part Number 96530005
•Program Mode Insta-Change check for MICR Plus, Part Number 96530022
•Software Utility for Downloading , PROGMICR.EXE, Part Number 22596805
•IntelliPIN Plus, portable, RS-232 interface, Part Number 30015125
•IntelliPIN Plus, nonportable, RS-232 interface, Part Number 30015126
SPECIFICATIONS
Table 1-1 lists the specifications for the MICR Plus.
Table 1-1. Specifications
OPERATING
Reference Standards ISO/CDL/AAMVA
Power Input 120 VAC, 50/60 Hz
Output Signal Levels 12 VAC, 1 Amp
Check Read/Decode/Transit
Time 1 second
MICR fonts supported E13-B
CMC-7
MSR supported Tracks 1, 2, and 3; or Tracks 1 and 2
MECHANICAL
Dimensions Length 6.0”, Width 4.0”, Height 4.4”
Weight: 3.0 lbs. MSR and Adapter included
Cable length 6’
Connectors 9 pin DB female,
25 pin DB female
ENVIRONMENTAL
Temperature
Operating 0oC to 50oC (32oF to 122oF)
Storage -30oC to 70oC (-22oF to 158oF)
Humidity
Operating 10% to 90% noncondensing
Storage Up to 100% noncondensing

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SECTION 2. INSTALLATION
The installation for the MICR Plus is as follows:
REQUIREMENTS
The following is required for the Installation:
•MICR Plus
•Interface Cable, DB25 female, Part Number 22617504 or
Interface Cable, DB9, female, Part Number 22617506
•AC Power Adapter with Cable, 120VAC to 12 VAC, 1 Amp, Part Number 64300050
•Interface Cable, if required, from RS-232 Auxiliary Port to external RS-232 device
PORTS
The MICR ports are shown in Figure 2-1.
Figure 2-1. Ports on the MICR Plus

MICR PLUS, RS-232
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The ports are for the following connections:
•The RS-232 Host port is used when connecting to an RS-232 Host.
•The ECR port is used when connecting to an ECR Host.
•The RS-232 Auxiliary Port is used to attach an external RS-232 device to the MICR Plus.
The MICR Plus in turn, acts as a communication bridge between the external device and the
Host device.
•The Power plug connects to an adapter and wall power.
To Install the MICR Plus, perform the following steps:
1. On the interface cable connect the DB25/DB9 connector to the PC. The pin lists for
these connectors are shown in Appendix F.
2. On the interface cable connect the 8-pin RJ plug to the RS-232 Host port.
3. If an external RS-232 device is to be used, connect the cable from the RS-232 device to
the RS-232 auxiliary port. An example is shown in Figure 2-2.
Note
The RS-232 auxiliary port will be set with the same communication
parameters as the RS-232 Host Port.
25-pin, 6' Cable to PC
Part No. 22617504
10' Cable to IntelliPIN
Part No. 30019308
120 VAC
Power Adaptor
with 6' Cable
P/N 64300050
MICR Plus
IntelliPIN
Dock
Figure 2-2. MICR Plus Connections
4. On the AC power adapter, connect the jack to the plug on the MICR Plus.

Section 2. Installation
5
5. On the AC power adapter, connect the plug to the wall outlet.
6. The LED indicator on the MICR Plus should turn on to a steady green. The LED
indicator is located below the slot where the check is first inserted for reading.
Caution
Do not place the MICR Plus within 6 inches of a computer
monitor or power supply. These devices may cause undesirable
interference with the check reading operation.

MICR PLUS, RS-232
6

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SECTION 3. OPERATION
This section contains check and card reading procedures and LED indicator states.
CHECK READING PROCEDURE
1. Orient the check so the MICR line is down and the printed side faces the center on the
MICR Plus as shown in Figure 3-1.
Figure 3-1. Check Orientation
2. Drop the check so the leading edge is in the open slot.
3. When the unit detects the presence of the check, the motor will turn on. At this time
gently urge the check forward until the unit grabs the check. When this happens, release
the check. The check will then be transported around the check path and will exit
through the other side.
4. After the check is read, the Reader will transmit the data as specified by the parameters
described in Section 4, “Commands”.
CARD SWIPE PROCEDURE
The card may be swiped through the Magnetic Stripe Reader (MSR) in either direction, but the
magnetic stripe must be oriented in only one direction as shown in Figure 1-1. The reader will
transmit raw card data (“as is” on the card) for all tracks that have been enabled using the HW
(Hardware) command (Section 4, Commands).
The MSR is capable of reading ISO, AAMVA, and CDL encoded cards. The MSR will
autodiscriminate all the card formats when the ID Card Decoding option is enabled using the
HW command (Section 4, Commands).

MICR PLUS, RS-232
8
LED INDICATORS
Table 3-1 describes the LED indicator conditions for check and card reading operations. The
LED indicator is located below the slot where the check is first inserted for reading. The
commands and all possible combinations of the LED indicator are listed in Section 4 under LE
Command.
Table 3-1. LED indicators
LED INDICATOR DESCRIPTION
OFF Power off
SOLID GREEN Ready to read check or card
OFF→SOLID RED Check or card read error
OFF→SOLID GREEN Good read
SOLID GREEN →FLASH RED/GREEN EMF noise detected*
FLASH GREEN Needs initialization*
FLASH RED/GREEN Data sensor blocked (motor does not run)*
FLASH RED Motor sensor blocked (motor does not run)*
FLASH GREEN FAST Monitor mode (factory use only)*
*Refer to “Appendix C. Troubleshooting Guide”

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SECTION 4. COMMANDS
This section describes the use of commands and programmable options available for the MICR Plus.
Note
All options described below can be factory set as specified by the user
when ordering.
To execute the MICR Plus commands, either one of two methods is required: Insta-Change Checks or a
PC with a program that provides access to a serial communications (COMM) port.
INSTA-CHANGE CHECKS
The first method is the use of Insta-Change checks, which is a more practical way of setting up
the MICR Plus for most applications. The Insta-Change check is an E13-B MICR encoded
document that contains commands and options used to reset the parameters of the MICR Plus.
Multiple commands and options may be contained on one Insta-Change check. When used, the
Insta-Change checks are run through the MICR Plus the same as a standard check, and the
options to be used are automatically selected. To obtain Insta-Change checks, notify a MagTek
representative and specify what options will be used. To operate Insta-Change checks, install the
MICR Plus as described in Section 2, and watch the LED indicator. When the Insta-Change
check is run through the MICR Plus and read successfully, the LED indicator will blink green.
If the LED indicator turns red, the read is not successful. Try again or use a different Insta-
Change check.
PC PROGRAM
The second method, the PC program, may be MagTek’s SET-MICR Demo program (Rev P or
higher), or any other PC program that provides access to the COMM port. With the SET-MICR
program, commands may be selected from menus, but with any other program the command data
is entered manually (typed) into the system. Whether SET-MICR, or any other program is used,
the PC and the MICR Plus must be set to the same communication parameters (baud rate, parity,
stop bits, etc.)
COMMAND FORMAT
When the commands are entered manually, they must use the following format:
[COMMAND][DATA]<CR>
Where:

MICR PLUS, RS-232
10
•[COMMAND] is 2 or 3 alpha characters.
•[Data] is optional as described below for each command.
•<CR> is always required.
•All characters are ASCII
•No spaces, brackets, or angle brackets required.
SWA - SWITCH A COMMAND
The SWA command, shown in Table 4-1, controls the communication parameters for the RS-232
Host port. The data for this command consists of 8 ASCII bits (“0” = hex 30 and “1” = hex 31).
Note
The RS-232 auxiliary port will be set with the same communication
parameters as the RS-232 Host Port.
To execute, send the SWA command as follows:
SWA 01010101<CR> (with data)
or
SWA <CR> (without data)
When sending data, all 8 bits must be provided. The MICR Plus will execute the command but
it will not reply. To make this command permanent, use the SA command described below.
If no data is sent, the MICR Plus responds with the current settings for SWA.
Note
The new settings for the serial port will not become
effective until the RS command is executed.

Section 4. Commands
11
Table 4-1. SWA Command
BITS FUNCTION
7 6 5 4 3 2 1 0
0 0 0 Reserved
0 0 1 Baud Rate: 300
0 1 0 Baud Rate: 600
0 1 1 Baud Rate: 1200
1 0 0 Baud Rate 2400
1 0 1 Baud Rate: 4800
1 1 0 Baud Rate: 9600
1 1 1 Baud Rate: 19200
0 0 0 Data, Stop Bits, Parity: 8, 1, None
1 0 0 Data, Stop Bits, Parity: 8, 2, None
0 0 1 Data, Stop Bits, Parity: 8, 1, Even
1 0 1 Data, Stop Bits, Parity: 8, 1, Odd
0 1 0 Data, Stop Bits, Parity: 7, 1, Even
1 1 0 Data, Stop Bits, Parity: 7, 2, Even
0 1 1 Data, Stop Bits, Parity: 7, 1, Odd
1 1 1 Data, Stop Bits, Parity: 7, 2, Odd
0 CTS/DSR: Use
1 CTS/DSR: Ignore
0 Intercharacter Delay: No
1 Intercharacter Delay: Yes
SWA PARAMETERS
The SWA functions are listed in Table 4-1 and described below.
Baud Rate
The baud rate is one of seven speeds at which the MICR Plus communicates with the host. The
lowest speed is 300 baud, and the highest is 19200.
Data, Stop Bits, and Parity
Data refers to the number of data bits used to transmit every character; the options available are
7 or 8. Stop Bits refer to the number of bits used to indicate the end of transmission for every
character; the options available are 1 or 2. Parity refers to a means of detecting bit-level
transmission errors for every character; the options available are None, Even or Odd.

MICR PLUS, RS-232
12
CTS/DSR
When CTS/DSR (Clear to Send/Data Set Ready) is set to Ignore, the MICR Plus sends data to
the host without waiting for the CTS and DSR signals to be active. When CTS/DTS is set to
Use, the MICR Plus waits for the CTS and DSR signals to be active before sending data.
Intercharacter Delay
The intercharacter delay is used to increase the time between characters transmitted from the
MICR Plus. The delay is equivalent to the transmission of one character. This parameter affects
character rate but not baud rate (i.e., each character takes the same time to transmit but the time
between characters is increased).
SWB - SWITCH B COMMAND
The SWB command controls the message format, shown in Table 4-2. The data for this
command consists of 8 ASCII bits (“0” = hex 30 and “1” = hex 31).
To execute, send the SWB command as follows:
SWB 01010101<CR> (with data)
or
SWB <CR> (without data)
When sending data, all 8 bits must be provided. The MICR Plus will execute the command but
it will not reply. The new settings become effective immediately.
If no data is sent, the MICR Plus responds with the current settings for SWB. To make this
command permanent, use the SA command described below.