LM Technologies LM048 Manual
Bluetooth rs232 serial adapter
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- Manual (24 pages) ,
- At command manual (16 pages) ,
- Quick start manual (9 pages)
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Summary of Contents for LM Technologies LM048
- Page 1 Bluetooth RS232 Serial Adapter Manual Document Version: 1.0 Firmware Version: 6.5x LM048 LM058 Downloaded from Elcodis.com electronic components distributor...
- Page 2 Document History Revision Date Name Description 25-03-2011 Initial Version 16-05-2011 Add CE Certs Downloaded from Elcodis.com electronic components distributor...
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Page 3: Table Of Contents
7 wire configuration Page 8 AT Command set Page 8-15 Modem Signals Page 15-17 Windows configuration software Page 18 Warranty, Help and Support Page 19 Disposal notice Page 20 LM048 and LM058 CE Declaration Page 21-22 Downloaded from Elcodis.com electronic components distributor... -
Page 4: Introduction
1. Introduction Welcome to the LM Technologies Bluetooth RS232 Serial adapter user manual. The LM048/LM058 adapter eliminates your conventional RS232 serial cables, providing an easy-to-use, invisible connection with superior freedom of movement. This adapter allows any device with a standard 9-pin serial port to communicate wirelessly. -
Page 5: Package
3. Package • Bluetooth serial adapter • DB9 male to female converter • USB cable for power supply • User manual • Warranty Card • 2Dbi Antenna (LM058 only) Optional: • 9 pin to 25 pin converter • All in one power supply (UK, EU and US Plug) 4. -
Page 6: Rs232 Interface
Max. 90 mA Operation Temperature -20°C to +75°C Dimensions LM048: 46.3 mm (W) x 34 mm (D) x 16 mm (H) LM058: 35 mm (W) x 65 mm (D) x 16 mm (H) 5 RS232 Interface 5.1 Pin-out 5.2 Signals... -
Page 7: Factory Settings
5.3 Factory Settings The factory settings of COM port are as follows: Baud rate: 19200 bps Data bit: Parity: none Stop bit: Flow control: None Others: please refer to section 7.8 AT Command Set. 6. Installation 6.1 Hardware Structure The figure below is an outline of the adapter. 1. -
Page 8: Slide Switch
6.3 Slide Switch The slide switch can swap TXD/RXD, RTS/CTS and DTR/DSR signals. Using this switch, you can set the adapter either as a DTE (towards antenna connector) or a DCE (towards RS232 connector). 6.4 Power Supply The adapter can be powered via: •... -
Page 9: Installation Procedure
6.6 Installation Procedure Step 1: Plug the adapter into the COM port of device. Step 2: Adjust the slide switch, depending on whether the device is a DCE or DTE. Step 3: Power the adapter on. Step 4: Configure the adapter if necessary. Note: The UART settings on adapter should match the COM Port settings on the device. -
Page 10: Master Role Configuration
Step 6: Input “A” in the file. If no echo, that is, nothing is displayed when you input “A”, it indicates that the COM port settings are incorrect or slide switch is in the wrong position. Step 7: Input “AT”, and then press <Enter>. “OK” is displayed. If necessary, reprogram the configuration of adapter using AT commands. -
Page 11: Wire Configuration
7.7 7 wire configuration (Tx, Rx, GND, RTS, CTS, DTR, DSR) Set 7 wire configuration by sending AT+FLOW+ and AT+MODEMR command. RTS, CTS lines are used for local flow control between device and adapter. DTR, DSR lines are used for handshaking between local device and remote connected device. - Page 12 Command Description Switch the device from online Data mode to online command mode while maintaining the connection to the remote device. The characters should be send with 1000 ms guard time.. Check the serial UART port settings of the adapter. AT+VER Inquire the current firmware version AT+ENQ...
- Page 13 AT+CONN Connect to the specified bonded device. It is available only when AT+BOND=xxxxxxxxxx is executed where “xxxxxxxxxxxx” is the 12 hex digit string specifying remote device bluetooth address. AT+CONN=xxxxxxxxxxxx Connect the adapter to a specified Bluetooth device. “xxxxxxxxxxxx” is 12 hexadecimal digit string specifying remote device bluetooth address.
- Page 14 AT+BOND- Restore the status in which the adapter can connect with any remote address. AT+BOND? Inquire the designated address that can be paired and connected. AT+FIND Search for any Bluetooth device in the neighborhood within one minute. If any device is found, its name and address will be listed.
- Page 15 AT+NAME=xxxxx “xxxxx” is a character string with a maxi- mal length of 16. AT+NAME? Inquire the name of the local adapter. AT+PIN Specify a PIN. The default PIN is“1234”. Paired adapters should have a same PIN. AT+PIN=xxxx “xxxx” is a 4-8 digit string. AT+PIN- Cancel authentication by PIN.
- Page 16 AT+RESP+ (default) Prompt result messages. AT+RESP- Not prompt result messages. AT+RESP? Inquire the current setting. AT+FLOW Enables or disables RTS/CTS signals handshaking of the UART port. Note, the setting will cause a reboot AT+FLOW- (default) Disable RTS/CTS flow control AT+FLOW+ Enable RTS/CTS flow control AT+FLOW? Inquire the current setting...
- Page 17 AT+PAR1 Odd parity. AT+PAR2 Even parity AT+PAR? Inquire the current setting. AT+SLEEP Enable/disable auto-power saving feature of adapter AT+SLEEP- (default) Disable auto power saving AT+SLEEP+ Enable auto power saving AT+SLEEP? Inquire the current setting. AT+STOP Specify one or two stop bits of COM port. AT+STOP1(default) One stop bit.
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Page 18: Modem Signals
AT+RSSI Inquire the RSSI value for current bluetooth connection. This command is only available when the device is in connected state. AT+MODEM Enable/disable RS232 modem signals. This command is used in conjunction with AT+FLOW command AT+MODEM- (default) Disable Modem Signals AT+MODEML Enable Local loopback. - Page 19 RTS, CTS, signals used for DTR<->DSR data flow control between host and adapter, and NOT transferred to remote side wirelessly. DTR looped back to DSR. This configuration is equivalent to LM048 adapter running v4.5x firmware. Downloaded from Elcodis.com electronic components distributor...
- Page 20 All 7 lines used. RTS, CTS, Only DTR, DSR DTR(R), signals DSR(R) transferred wirelessly to remote side. If RTS, CTS signals are not used, then this configuration is equivalent to LM048 SPA Adapter running v4.6X firmware. Downloaded from Elcodis.com electronic components distributor...
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Page 21: Windows Configuration Software
Once you have setup the configuration that you require you will then need to click “program Device”. The LM048/LM058 can also be paired via the configuration program using the “Pairing” button. It takes you to the page which provides option for Pairing/Unpairing adapters. -
Page 22: Warranty, Help And Support
Your supplier will require proof of purchase before replacing the defective product. Registration is mandatory to access the help system within the LM Technologies website. Help is available through this document, the user manual within the LM149 configuration software and our website. -
Page 23: Disposal Notice
10. Disposal Notice DISPOSAL OF OLD ELECTRICAL AND ELECTRONIC EQUIPMENT The symbol indicates that this product shall not be mixed with unsorted municipal waste when disposed of. There is separate collection system for waste electrical and electronic equipment. Usually old electrical and electronic equipment can be returned free of charge. -
Page 24: Lm048 And Lm058 Ce Declaration
EU Declaration of Conformity (RTTE) LM Technologies, 26 D Guosheng Tai, Guozhan block, Buji Town, Shenzhen, China. (Factory name, address) Declare under our sole responsibility that the product Bluetooth RS232 Adapter (LM048) To which this declaration relates is in conformity with... - Page 25 EU Declaration of Conformity (RTTE) LM Technologies, 26 D Guosheng Tai, Guozhan block, Buji Town, Shenzhen, China. (Factory name, address) Declare under our sole responsibility that the product Bluetooth RS232 Adapter (LM058) To which this declaration relates is in conformity with...
- Page 26 Copyright © LM Technologies Ltd - 2011 Downloaded from Elcodis.com electronic components distributor...