Multitech MultiConnect BT MTS2BTA User manual

MultiConnect™BT
Serial-to-Bluetooth®Adapter
MTS2BTA
MTS2BTA-R
User Guide

Copyright and Technical Support
Multi-Tech Systems, Inc. Serial-to-Bluetooth Adapter User Guide (S000370B) 2
MultiConnect BT
Serial-to-Bluetooth Adapter
MTS2BTA and MTS2BTA-R
User Guide
S000370B Rev. B
Copyright
This publication may not be reproduced, in whole or in part, without prior expressed written permission
from Multi-Tech Systems, Inc. All rights reserved.
Copyright © 2005-2007 Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranty with respect to the contents hereof and
specifically disclaims any implied warranty of merchantability or fitness for any particular purpose.
Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes
from time to time in the content hereof without obligation of Multi-Tech Systems, Inc. to notify any person
or organization of such revisions or changes.
Revision Date Description
A03/31/05 Initial release.
B 12/10/07 Update for Bluetooth protocol version 2.0. Updated the Power
Specifications.
Trademarks
Multi-Tech and the Multi-Tech logo are registered trademarks of Multi-Tech Systems, Inc. MultiConnect
is a trademark of Multi-Tech Systems, Inc. Bluetooth is a registered trademark of Bluetooth SIG, Inc. All
other brand and product names mentioned in this publication are trademarks or registered trademarks of
their respective companies.
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112 U.S.A.
[phone] or [phone]
Fax [phone]
http://www.multitech.com
Technical Support
Country By Email By Phone
Europe, Middle East, Africa [email protected] (44) 118 959 7774
U.S., Canada, all others [e-mail] 800-972-2439 or 763-717-5863

Table of Contents
Multi-Tech Systems, Inc. Serial-to-Bluetooth Adapter User Guide (S000370B) 3
Contents
Chapter 1 – Description and Specifications.............................................................................................4
Product Description....................................................................................................................................4
General Safety...........................................................................................................................................4
Handling Precautions.................................................................................................................................4
Maintenance of the Serial-to-Bluetooth Adapter........................................................................................5
Product Build Options................................................................................................................................5
Shipping Package Contents ......................................................................................................................5
AT Commands and Setup Examples.........................................................................................................5
Technical Specifications ............................................................................................................................6
RF Interface...............................................................................................................................................7
Default Power Up Settings.........................................................................................................................7
LED Indicators ...........................................................................................................................................8
Chapter 2 – Installation and Cabling.........................................................................................................9
Attaching the MultiConnect Adapter to a Fixed Location...........................................................................9
Making the Connections ..........................................................................................................................10
Directions for the MTS2BTA (Externally Powered) .................................................................................10
Directions for the MTS2BTA-R (Powered through Pin 6 of an RS-232 Cable).......................................10
Optional – Direct DC Power Connection for Use with the MTS2BTA .....................................................11
Chapter 3 – AT Commands and Configuration Examples....................................................................12
AT Command Reference Guide ..............................................................................................................12
Using AT Commands...............................................................................................................................12
Test Procedures Using AT Commands...................................................................................................15
Disabling Flow Control Using AT Commands .........................................................................................16
Configuring to Use DTR for Resetting the MTS2BTA Using AT Commands..........................................16
Chapter 4 – Peripheral Devices ...............................................................................................................17
Antenna System.......................................................................................................................................17
Pin Assignments for the Serial Port.........................................................................................................18
Appendix A – Regulatory Compliance Statements ...............................................................................19
Waste Electrical and Electronic Equipment Statement ...........................................................................19
Information on HS/TS Substances According to Chinese Standards .....................................................20
Information on HS/TS Substances According to Chinese Standards (in Chinese).................................21
Appendix B – Warranty and Repairs Policy...........................................................................................22
Multi-Tech Warranty Statement...............................................................................................................22
Index...........................................................................................................................................................24

Chapter 1 – Description and Specifications
Multi-Tech Systems, Inc. Serial-to-Bluetooth Adapter User Guide (S000370B) 4
Chapter 1 – Description and
Specifications
Product Description
The MultiConnect BT Serial-to-Bluetooth adapter utilizes Bluetooth technology to provide a secure,
standards-based wireless connection between a host and a peripheral device. Providing wireless data
transfer up to 100 meters, it completely eliminates the need for serial cable connections.
General Safety
The adapter is designed and intended to be used in either fixed or mobile applications. In the “Fixed”
application, the device is physically secured at one location and not easily moved to another location. In
the “Mobile” application, the device may be regularly moved to different locations.
Caution! Maintain a separation distance of at least 20 cm (8 inches) between the transmitter’s antenna
and the body of the user or nearby persons. The adapter is not designed for, nor intended to be, used in
applications within 20 cm (8 inches) of the body of the user. Such uses are strictly prohibited.
Radio Frequency Interference
Avoid possible radio frequency (RF) interference by carefully following the safety guidelines below.
•Switch OFF the Adapter when in an aircraft. The use of cellular telephones in aircraft is illegal. It
may endanger the operation of the aircraft and/or disrupt the cellular network. Failure to observe
this instruction may lead to suspension or denial of cellular telephone services to the offender,
legal action, or both.
•Switch OFF the Adapter in the vicinity of gasoline or diesel-fuel pumps or before filling a vehicle
with fuel.
•Switch OFF the Adapter in hospitals and any other place where medical equipment may be in use.
•Respect restrictions on the use of radio equipment in fuel depots, chemical plants, or where
blasting operations are in progress.
•There may be a hazard associated with the operation of your Adapter in the vicinity of
inadequately protected personal medical devices such as hearing aids and pacemakers. Consult
the manufacturers of the medical device to determine if it is adequately protected.
•Operation of the Adapter in the vicinity of other electronic equipment may cause interference if the
equipment is inadequately protected. Observe any warning signs and manufacturers’
recommendations.
Vehicle Safety
•Do not use your Adapter while driving.
•Respect national regulations on the use of cellular telephones in vehicles. Road safety always
comes first.
•If incorrectly installed in a vehicle, the operation of adapter could interfere with the correct
functioning of vehicle electronics. To avoid such problems, be sure that the installation has been
performed by qualified personnel. Verification of the protection of vehicle electronics should be
part of the installation.
•The use of an alert device to operate a vehicle’s lights or horn on public roads is not permitted.
Handling Precautions
All devices must be handled with certain precautions to avoid damage due to the accumulation of static
charge. Although input protection circuitry has been incorporated into the devices to minimize the effect of
this static buildup, proper precautions should be taken to avoid exposure to electrostatic discharge during
handing and operation.

Chapter 1 – Description and Specifications
Multi-Tech Systems, Inc. Serial-to-Bluetooth Adapter User Guide (S000370B) 5
Maintenance of the Serial-to-Bluetooth Adapter
Your adapter is the product of advanced engineering, design and craftsmanship and should be treated
with care. The suggestions below will help you to enjoy this product for many years.
•Do not expose the adapter to any extreme environment where the temperature or humidity is high.
•Do not attempt to disassemble the adapter. There are no user serviceable parts inside.
•Do not expose the adapter to water, rain or spilled beverages. It is not waterproof.
•Do not abuse your adapter by dropping, knocking, or violently shaking it. Rough handling can
damage it.
•Do not place the adapter alongside computer discs, credit or travel cards, or other magnetic
media. The information contained on discs or cards may be affected by the phone.
•The use of accessories not authorized by Multi-Tech or not compliant with Multi-Tech’s accessory
specifications may invalidate the warranty of the MultiConnect Adapter.
•In the unlikely event of a fault in the adapter, contact Multi-Tech Technical Support.
Product Build Options
Product Description Region
MTS2BTA Serial-to-Bluetooth Adapter (Externally Powered) Global
MTS2BTA-R Serial-to-Bluetooth Adapter (Powered through Pin 6 of an
RS-232 Cable) Global
Shipping Package Contents
MTS2BTA (Externally Powered)
•One Serial-to-Bluetooth Adapter
•One antenna
•One mounting bracket
•One power supply
•A set of four self-adhesive plastic feet
•One printed Quick Start Guide
•One MultiConnect CD containing the adapter drivers, User Guide, Quick Start Guide, AT
Commands Reference Guide, Global Wizard software, and a link to Adobe Acrobat Reader.
MTS2BTA-R (Powered by Pin 6 of an RS-232 Cable)
•One Serial-to-Bluetooth Adapter
•One antenna
•One mounting bracket
•A set of four self-adhesive plastic feet
•One printed Quick Start Guide
•One MultiConnect CD containing the adapter drivers, User Guide, Quick Start Guide, AT
Commands Reference Guide, Global Wizard software, and Acrobat Reader.
AT Commands and Setup Examples
AT commands for this Adapter are published in a separate Reference Guide included on the product CD
and posted on the Multi-Tech Web site.
This command guide includes setup examples and repeater examples.

Chapter 1 – Description and Specifications
Multi-Tech Systems, Inc. Serial-to-Bluetooth Adapter User Guide (S000370B) 6
Technical Specifications
Category Description
Standards Class 1 Bluetooth V2.0 compliant.
Notes:
Bluetooth protocol V2.0: circuit board I/O pin 7 now controls flow control.
Previously, in V1.2, the circuit board I/O pin 3 controlled flow control.
V2.0 now supports multi-point connections.
Serial Interface Supports speeds from 1200bps to 230Kbps
Data Format For Serial Interface - Asynchronous, 8-N-1, Default is 9600bps
Flow Control Hardware flow control
Modes of Operation Inquiry, Idle, Data, Fast Data, Park, Sniff, Command, Master, Slave
Device Profiles Serial Port (SPP), Dial-up Network (DUN)
Buffer Serial 50 bytes
RF 50-byte RX buffer
Dimensions 4.3" w x 2.4" h x 0.94" d (11 cm x 6.1 cm x 2.4 cm)
Weight 4.2 oz. (120 g)
Power Requirements MTS2BTA:
100mA typical/250mA maximum @ 9VDC
MTS2BTA-R:
86mA typical/200mA maximum @ 5VDC,
42mA typical/100mA maximum @ 10VDC,
29mA typical/68mA maximum @ 15VDC,
23mA typical/54mA maximum @ 20VDC,
19mA typical/45mA maximum @ 25VDC
Operating Temperature +32°to +120°F (0°to +50°C)
Humidity 25-85% noncondensing
Voltage 9VDC to 25VDC
Certifications CE Mark
EMC:
FCC Part 15 Class B
Canada (Class B)
FCC Part 15.247:2004 (Subpart C)
EN 55022
EN 55024
EN 300 328
EN 301 489-1 V1.4.1
EN 301 489-17
Safety:
cUL
UL 60950
EN 60950
Intelligent Features Supports multi-point connections
Operating System Independent
AT Command software interface
LED driver outputs for visual monitoring
Auto connect
Low power consumption
Secure and robust communication link.
•FHSS (Frequent Hopping Spread Spectrum)
•128-bit encryption; 10 alphanumeric Personal Identification Number
(PIN)
•Error correction schemes for guaranteed packet delivery
Warranty Two Years

Chapter 1 – Description and Specifications
Multi-Tech Systems, Inc. Serial-to-Bluetooth Adapter User Guide (S000370B) 7
RF Interface
Radio Characteristics
Frequency 2402 – 2480MHz
Modulation FHSS/GFSK
Channel Intervals 1MHz
Number of Channels 79CH
Transmission Rate 721Kbps
RF Receive Sensitivity -80dBm typical
RF Range Class 1 - 100 meters (330 feet)
Default Power Up Settings
AT Command Response Form = Long Form
Bluetooth Service Profile = Serial Port Profile {SPP}
Device Role = Slave
Baud Rate = 9600bps
Data Bits = 8 bits
Parity = None
Stop bits = 1 bit
Hardware Flow Control RTS/CTS = Enabled
Power Mode = Never go into deep sleep mode
Country Code = North America and Europe
Name of Device (local name) = Serial-to-Bluetooth Adapter
My Radio Status = 1,0 {slave, disconnected}
Service Name = COM0
Power up default ATSW24 settings = 0,0,0,0 {long response, no authentication, no auto SCO
connect, no minor}
Power up default ATSW25 settings = 0,1,0,0 {slave, data, allow data to pass, SPP}
Major & Minor Class Of Device (COD) = 00000000 {undefined}
Security PIN and Encryption = Disabled
Default PIN = “default” caps sensitive
Important Security PIN Note:
Do not forget your PIN. Write it down. If you forget it, there is no way it can be retrieved from
the device or the software. You will have to buy a new Bluetooth device and start over.
Page Scan Interval = 0x400 {2560msec.}
Page Scan Window = 0x200 {11msec.}
Inquiry Scan Interval = 0x400 {2560msec.}
Inquiry Scan Window = 0x200 {11msec.}
Timeout Connection Parameters
Inquiry = 60 seconds
Slave Connect = 60 seconds
Master Connect = 60 seconds
ATDM idle mode = 60 seconds
ATDM Master Mode = indefinitely (need to perform ATUCL to cancel last command)
Timeout for loss of Bluetooth connection = 4 seconds

Chapter 1 – Description and Specifications
Multi-Tech Systems, Inc. Serial-to-Bluetooth Adapter User Guide (S000370B) 8
LED Indicators
LED Description
TD Transmit Data. This LED is lit when adapter is transmitting data to another adapter.
RD Receive Data. This LED is lit when the adapter is receiving data from another adapter.
CD Carrier Detect. This LED is lit when the adapter detects a valid carrier signal from another
adapter.
It is on when the adapter is communicating with the other adapter and off when the link is
broken.
TR Terminal Ready. (Also called Data Terminal Ready.) This LED indicates the PC is turned
on and ready to communicate. This LED is lit when a data communications program
initializes the adapter. It goes off when the communications program disconnects the COM
port. When it goes off, a connected adapter will disconnect.
PWR Power. This LED Indicates the presence of DC power when lit.

Chapter 2 – Installation and Cabling
Multi-Tech Systems, Inc. Serial-to-Bluetooth Adapter User Guide (S000370B) 9
Chapter 2 – Installation and Cabling
Attaching the MultiConnect Adapter to a Fixed
Location
The Serial-to-Bluetooth Adapter is design to be used on the desktop or to be panel-mounted. To attach
the bracket for panel-mounting, following these steps:
1. Typically, the adapter is mounted against a flat surface with two mounting screws. Drill the
mounting holes at the desired location. The mounting holes must be separated by 4 -15/16
inches center-to-center.
2. To attach the mounting bracket, slide it into the corresponding slot on the back of the
MultiConnect chassis.
3. Attach the adapter to the surface with two screws.

Chapter 2 – Installation and Cabling
Multi-Tech Systems, Inc. Serial-to-Bluetooth Adapter User Guide (S000370B) 10
Making the Connections
Directions for the MTS2BTA (Externally Powered)
Turn off your PC. Place the adapter in a convenient location. Connect it to your PC’s serial port
and plug in the power.
Directions for the MTS2BTA-R (Powered through Pin 6
of an RS-232 Cable)
Turn off your PC. Place the adapter in a convenient location. Then connect it to your PC’s serial
port. The MTS2BT-R draws its power from the RS-232 cable's Pin 6.