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MM2 Spread Spectrum Wireless Data Transceiver User Manual
MM2
Spread Spectrum
Wireless Data Transceiver
User Manual
Version 1.6
FreeWave Technologies, Inc.
1880 South Flatiron Court
Boulder, CO 80301
(303) 444-3862
(303) 786-9948 Fax
www.FreeWave.com
MM2 U
M
SER
ANUAL
Copyright © 1995-2008 by FreeWave Technologies, Inc. All rights reserved. Published 2008.
LUM0014AA Rev A
Version 1.6
i
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Summary of Contents for FreeWave MM2
- Page 1 User Manual Version 1.6 FreeWave Technologies, Inc. 1880 South Flatiron Court Boulder, CO 80301 (303) 444-3862 (303) 786-9948 Fax www.FreeWave.com MM2 U ANUAL Copyright © 1995-2008 by FreeWave Technologies, Inc. All rights reserved. Published 2008. LUM0014AA Rev A Version 1.6...
- Page 2 FreeWave will, at its discretion, repair or replace the Product. In no event will FreeWave Technologies Inc., its suppliers, and its licensors be liable for any damages arising from the use of or inability to use this Product. This includes business interruption, loss of business information, or other loss which may arise from the use of this Product.
- Page 3 Consult the dealer or an experienced radio/TV technician for help. Note: Whenever any FreeWave Technologies module is placed inside an enclosure a label must be placed on the outside of that enclosure which includes the module's FCC ID. LUM0014AA Rev A...
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Page 4: Table Of Contents
MM2 Spread Spectrum Wireless Data Transceiver User Manual Table of Contents ABOUT FREEWAVE TRANSCEIVERS.........................6 ABOUT FREEWAVE TRANSCEIVERS.........................6 OEM / E ..........................6 NGINEERING OTIFICATION CHOOSING POINT-TO-POINT OR POINT-TO-MULTIPOINT OPERATION..........7 QUICK START ON A POINT-TO-MULTIPOINT NETWORK ................8 LED' .......................8 OINT ULTI OINT PERATION QUICK START ON A POINT-TO-POINT NETWORK..................9... - Page 5 MM2 Spread Spectrum Wireless Data Transceiver User Manual A) ............................36 RANSMIT URRENT ............................37 VERAGE OISE EVEL ............................37 VERAGE IGNAL EVEL (%) ............................37 VERALL ..............................37 ADIO EMPERATURE MULTIPOINT PARAMETERS ..........................38 ..........................38 ULTI OINT ARAMETERS (0) Number Repeaters............................38 (1) Master Packet Repeat ............................38 Master Packet Repeat in MultiPoint Networks with Repeaters ..................
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Page 6: About Freewave Transceivers
FreeWave website. Please contact FreeWave customer support to set up an account. For OEMs and engineering firms that want to integrate the MM2 into their product, the above approach can be used for programming the MM2. In addition to this approach, FreeWave Technologies, Inc also offers a more “machine friendly”... -
Page 7: Choosing Point-To-Point Or Point-To-Multipoint Operation
MM2 Spread Spectrum Wireless Data Transceiver User Manual Choosing Point-to-Point or Point-to-MultiPoint Operation A Point-to-Point network is limited to one Master and one Slave transceiver. Up to 4 Repeaters may be added to extend the reach of the network, but no other Master or Slave may be added. -
Page 8: Quick Start On A Point-To-Multipoint Network
(3.3 VDC for Model #MM2-LV-T, and 5.0 VDC for Model #MM2-T). • An evaluation interface is available for Model #MM2-T. This will allow the user to directly connect to an RS232 serial port and use the standard +12VDC power supply. A Diagnostic port is accessible as well using FreeWave diagnostic cable #ASC0409DC Open up a Hyper Terminal session. -
Page 9: Quick Start On A Point-To-Point Network
Quick Start on a Point-to-Point Network When purchased as a pair, the FreeWave® Wireless Data Transceivers are shipped from the factory pre-configured with most of the settings to operate in Point-to-Point applications. To establish communications between a pair of FreeWave Wireless Data Transceivers just received from the factory: Connect the transceiver to the instrument with the TTL to RS232 converter and also attach power. -
Page 10: Choosing A Location For The Transceivers
Placement of the FreeWave transceiver is likely to have a significant impact on its performance. The key to the overall robustness of the radio link is the height of the antenna. In general, FreeWave units with a higher antenna placement will have a better communication link. In practice, the transceiver should be placed away from computers, telephones, answering machines and other similar equipment. -
Page 11: Setting Up The Transceiver Using Hyperterminal
Once the transceiver is powered and connected with the programming cable to the programming computer, it may be or EZConfig programmed for use through HyperTerminal . (NOTE: the MM2 will not work with EZConfig. It will work with the FreeWave Tools Suite configuration utility) The following describes how to set HyperTerminal to program the transceivers. - Page 12 MM2 Spread Spectrum Wireless Data Transceiver User Manual In the Name text box, type in a descriptive name. Select an icon from the Icon selection box. Click on the OK button. The following “Connect To” dialog box appears: Select the connection type to be used from the Connect using drop-down menu. In most cases the connection type will be either Direct to Com1 or Direct to Com2.
- Page 13 MM2 Spread Spectrum Wireless Data Transceiver User Manual The following are the port settings which must be set for a proper connection: Port Setting Menu Option to Select Bits per second 19200 Data bits Parity None Stop bits Flow control None After selecting the appropriate menu items for each setting, click on the OK button.
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Page 14: Connecting And Disconnecting From Hyperterminal
To put the radio into setup mode, short pin 2 to ground. If connected to the diagnostics port, type U (Capital ‘U’) to invoke the Setup menu. When Setup is invoked, the FreeWave Setup Main Menu will display in the HyperTerminal dialog box. All ... -
Page 15: Troubleshooting Hyperterminal
This usually indicates a Baud Rate problem. Follow the steps below to change the Baud Rate. The problem may also be that the transceiver under test is TTL and NOT RS-232, make sure the TTL from the MM2 is being converted to RS232. Gibberish BEFORE the Setup button is pressed indicates Diagnostics is enabled. -
Page 16: Setting Up A Transceiver
MM2 Spread Spectrum Wireless Data Transceiver User Manual Setting up a Transceiver Note: Once Setup mode has been invoked in HyperTerminal, the process of exiting Setup mode involves pressing the Escape (Esc) key several times, allowing the transceiver to connect to the network. Otherwise, cycling the power is the alternative way to exit Setup mode. -
Page 17: Operation Mode
Operation Mode The Operation Mode option designates the method FreeWave transceivers use to communicate with each other. FreeWave transceivers operate in a Master to Slave configuration. Before the transceivers can operate together, they must be set up to properly communicate. - Page 18 MultiPoint the MultiPoint parameters section for details on enabling MultiPoint Slave/Repeater mode. Repeater (7) Mirrorbit See FreeWave Application note LAN5424xx for information on Mirrored Bit Master(A) Communication Mirrorbit Slave (B) See FreeWave Application note LAN5424xx for information on Mirrored Bit...
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Page 19: Set Operation Mode
MM2 Spread Spectrum Wireless Data Transceiver User Manual Set Operation Mode Selecting 0 Set Operation Mode from the Main Menu displays the following window: Select the appropriate operation mode by typing the associated number or letter after Enter Choice. When the selection is accepted, the Set Modem Mode menu will refresh and display the updated mode. -
Page 20: Baud Rate
MM2 Spread Spectrum Wireless Data Transceiver User Manual Baud Rate This setting is the communication rate between the transceiver and the instrument to which it is connected. It is important to note that this is independent of the baud rate for the other transceiver(s) in the network. For example, a pair of transceivers may be used in an application to send data from remote process instrumentation to an engineer's computer. - Page 21 Point-to-Point or MultiPoint mode. Modbus RTU timing can be adjusted via this setting. See Modbus RTU Timing (below) for more information Should be set to 0 for the MM2. RS232/485/422 is not supported in this radio. This radio is RS232/485 (C) TTL only.
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Page 22: Call Book
The instructions provided in this section are for Point-to-Point mode only. Use of the Call Book for MultiPoint networks is explained later in this chapter. Using the Call Book offers both security and flexibility in determining how FreeWave transceivers communicate with each other. -
Page 23: Edit Call Book
The Master must be programmed to call the Slave. The Call Book allows users to incorporate up to 10 FreeWave transceivers, designate 1 to 4 Repeaters to be used with each transceiver, and designate which Slave the Master will call. To set the Entry to Call option, enter C at the prompt, followed by the menu number corresponding to that Slave. -
Page 24: Programming Point - To -Point Extended Call Book To Use Three Or Four Repeaters
EPEATERS In a Point-to-Point configuration FreeWave transceivers can utilize up to 4 Repeaters. To use 3 or 4 Repeaters, program the Call Book with the Slave’s serial number, followed by the first 2 Repeaters. On the next line enter 999- 9999 as the transceiver to call. -
Page 25: Programming Point To -Multi Point Extended Call Book
MM2 Spread Spectrum Wireless Data Transceiver User Manual ROGRAMMING OINT ULTI OINT XTENDED In a MultiPoint network, a Slave can be programmed to roam between Masters and Repeaters using the MultiPoint Extended Call Book function. A Slave with its Call Book configured as below will communicate with any transceiver whose serial number appears in any of the three columns. -
Page 26: Edit Radio Transmission Characteristics
FreqKey (0-9 and A-E) setting, representing 15 different pseudo-random hop patterns. This is to minimize the interference with other FreeWave transceivers operating in the area. For instance, if 10 pairs of FreeWave transceivers are operating on different networks in close proximity, setting a different FreqKey value reduces the chance that transceivers will hop to the same frequency at the same time. -
Page 27: Hop Table Version
The Hop Table Size defines how many separate channels will be used by a given network. In the MM2-T radio, the Hop Table Size may be set from 50 to 112. In the MM2-HS-T radio, the Hop Table Size may be set from 1 to 40. -
Page 28: Frequency Zone
Likewise, a ‘0’ value will instruct the radio to bypass the represented band. This feature should only be used with the standard hop table. The following table shows the Frequency Zones for the MM2-T-U and the MM2-LV-T-U: Binary Zone Number (LSB First) Beginning Freq. - Page 29 0 (LSB) and continue through 15 (MSB). WARNING: In the MM2-T-U radio, FCC regulations require a minimum of 50 separate channels be used within a hop pattern. Use the above table to determine the number of frequency zones required for legal communication.
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Page 30: Max Packet Size And (2) Min Packet Size
The following table defines the Maximum packet size in bytes by way of charting the Min Packet Size setting versus the Max Packet Size setting where the RF Data Rate is set to 2 in an MM2-T-U or MM2-LV-T-U radio. - Page 31 The following table defines the Maximum packet size in bytes by way of charting the Min Packet Size setting versus the Max Packet Size setting where the RF Data Rate is set to 3 for any MM2 radio (MM2-T-U, MM2-LV-T-U, MM2- HS-T-U, MM2-HS-LV-T-U).
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Page 32: Xmit Rate
The following table defines the Maximum packet size in bytes by way of charting the Min Packet Size setting versus the Max Packet Size setting where the RF Data Rate is set to 1 in an MM2-HS-T-U or MM2-HS-LV-T-U radio. -
Page 33: Rf Xmit Power
MM2 Spread Spectrum Wireless Data Transceiver User Manual (5) RF X OWER This option sets the transmit power of the radio. A setting of 10 is approximately 1W of output power in an MM2. RF Xmit Power (in mW) Power Setting... -
Page 34: Retry Time Out
Note: Setting Retry Time Out to 20 is recommended in areas where several FreeWave networks exist. This setting will allow Slaves and Repeaters to drop the connection if the link becomes too weak, while at the same time prevent errant disconnects due to interference from neighboring networks. -
Page 35: Lowpower Mode
When a noise problem is shown to be helped by way of the High Noise option, chances are that the noise may be further squelched by use of a Bandpass filter available for sale from FreeWave Technologies. LUM0014AA Rev A... -
Page 36: (B) Mcu Speed
NTENNA EFLECTED OWER This statistic is not valid in the MM2-T, MM2-LV-T, MM2-HS or MM2-HS-LV series of radios. RANSMIT URRENT This statistic is not valid in the MM2-T, MM2-LV-T, MM2-HS or MM2-HS-LV series of radios. -
Page 37: Average Noise Level
50% if one or more Repeaters are in the network. ADIO EMPERATURE The Radio Temperature value is the current operating temperature of the transceiver in degrees Celsius. For proper operation, a FreeWave transceiver must be in the temperature range of -40° to +85° C. LUM0014AA Rev A Version 1.6... -
Page 38: Multipoint Parameters
MM2 Spread Spectrum Wireless Data Transceiver User Manual MultiPoint Parameters When installing MultiPoint networks it is important to do some up front planning. Unlike Point-to-Point networks, a Point-to-MultiPoint network requires several parameters are set consistently on all transceivers in the network. This includes RF data rate, Min and Max Packet Size, and FreqKey. -
Page 39: Master Packet Repeat In Multipoint Networks With Repeaters
MM2 Spread Spectrum Wireless Data Transceiver User Manual should be set with higher values. If a Slave receives a good packet from a Master more than once it will discard the repeated packets. Similarly, once a MultiPoint Repeater receives a good packet from the Master, it will discard any further repeated packets. -
Page 40: Repeater Frequency
MM2 Spread Spectrum Wireless Data Transceiver User Manual (5) R EPEATER REQUENCY Repeater Frequency must be set to a 1 in a Repeater when a FreqKey other than that of the Master is desired. This condition occurs when parallel Repeaters in a network may have overlapping areas of responsibility. The default setting of 0 causes the Repeater to use the FreqKey set in Menu 3. -
Page 41: (A) Slave/Repeater
A second computer or serial connection to run the diagnostics software. A diagnostics cable. (Available from FreeWave Technologies.) Diagnostics software. (Available on the User Manual and System Tools CD.) For more information on Diagnostics, please contact FreeWave Technical Support at (303) 381-9200. (C) S UBNET The Subnet ID function only works in MultiPoint Networks utilizing the Network ID option. -
Page 42: (D) Radio Id
(E) L OCAL Option (E) allows the user to access an MM2 series Multi-point slave with a local master. This Master is not the network master. Please see Application note 5457 for more information. LUM0014AA Rev A... -
Page 43: Overlapping Multipoint Networks
MM2 Spread Spectrum Wireless Data Transceiver User Manual Overlapping MultiPoint Networks Overlapping MultiPoint networks may be set up effectively with FreeWave transceivers when several key parameters are set correctly. Overlapping MultiPoint networks are defined as networks using different Masters which share or overlap in a specific geographic area. -
Page 44: Passwords
MM2 Spread Spectrum Wireless Data Transceiver User Manual Passwords Option (8) Change Password in the Main Menu allows the user to set a password that will prevent access to or changing of any of the radio’s parameters. This option is useful if it is desirable to prevent unauthorized personnel from gaining access to the radio settings. -
Page 45: Time Divisible Multiple Access (Tdma)
Time Divisible Multiple Access (TDMA) allows radios to do various operations on specific time slots. This option is only used for peer-to-peer communications or when applications are very time specific. For additional information about TDMA, contact FreeWave Technical Support at (303) 381-9200. LUM0014AA Rev A... -
Page 46: Additional Settings
MM2 Spread Spectrum Wireless Data Transceiver User Manual Additional Settings Some additional parameters are not shown in the Setup menu which may be used with FreeWave transceivers. These additional parameters may be set with DOS based software. The most common additional settings used by users are described below. -
Page 47: Factory Default Settings
MM2 Spread Spectrum Wireless Data Transceiver User Manual Factory Default Settings FreeWave MM2 900MHz transceivers are shipped from the factory with the following Default Settings: Operation Mode Default Ethernet Options: Default Point to Point Master (0) Ethernet Mode (1) Half/Full Duplex... -
Page 48: Examples Of Data Communication Links
MM2 Spread Spectrum Wireless Data Transceiver User Manual Examples of Data Communication Links FreeWave transceivers’ versatility allows data communication links to be established using a variety of different configurations. The example below shows the most common and straightforward link; a Master communicating to a Slave in a Point- to-Point link. - Page 49 MM2 Spread Spectrum Wireless Data Transceiver User Manual The example below shows a configuration where a Master routinely calls a number of Slaves at different times. The Master is communicating with a transceiver designated as a Slave/Repeater that is connected to a remote device.
- Page 50 MM2 Spread Spectrum Wireless Data Transceiver User Manual The last example is a Point-to-MultiPoint network which uses one of the sites as a Slave/Repeater. This network functions in the same manner as a standard MultiPoint network with Repeaters. However, the number of radios may be reduced with the use of the MultiPoint Slave/Repeater feature.
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Page 51: Additional Transceiver Information
MM2 Spread Spectrum Wireless Data Transceiver User Manual Additional Transceiver information Board Level Pinout J1 - 14 pin, 2.00mm centers, Samtec TMM series, TMM-107-01-G-D-SM-options Mates with Samtec CLT, SMM, MMS, SQT, ESQT, SQW, TLE, TCSD, TLSD series Model #MM2-LV-T: 3.3 VDC... -
Page 52: Mm2-T-U And Mm2-Lv-T-U 900 Mhz Transceiver Specifications
MM2 Spread Spectrum Wireless Data Transceiver User Manual MM2-T-U and MM2-LV-T-U 900 MHz Transceiver Specifications Specification Frequency 902 to 928 MHz Transmit Output Power 10mW to 1W (+30dBm) See RF transmit power settings. Range 60 miles Line Of Sight, 0 dB antenna gain... - Page 53 MM2 Spread Spectrum Wireless Data Transceiver User Manual MM2-T-U and MM2-LV-T-U 900 MHz Transceiver Specifications (cont.) MM2-T-U, MM2-LV-T-U Data Port 14-pin PCB connector Enclosure Bare board Dimensions 9.6 mm H x 31.5 mm W x 50.8 mm L Weight 14 grams ...
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Page 54: Mm2-T-U And Mm2-Lv-T-U 900 Mhz Transceiver Specifications
MM2 Spread Spectrum Wireless Data Transceiver User Manual MM2-HS-T-U and MM2-HS-LV-T-U 900 MHz Transceiver Specifications Specification Frequency 902 to 928 MHz Transmit Output Power 10mW to 1W (+30dBm) See RF transmit power settings. Range 30 miles Line Of Sight, 0 dB antenna gain... - Page 55 MM2 Spread Spectrum Wireless Data Transceiver User Manual MM2-HS-T-U and MM2-HS-LV-T-U 900 MHz Transceiver Specifications (cont.) MM2-HS-T-U, MM2-HS-LV-T-U Data Port 14-pin PCB connector Enclosure Bare board Dimensions 9.6 mm H x 31.5 mm W x 50.8 mm L Weight 14 grams ...
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Page 56: Mechanical Drawing
MM2 Spread Spectrum Wireless Data Transceiver User Manual Mechanical Drawing LUM0014AA Rev A Version 1.6... -
Page 57: Freewave Technical Support
For up-to-date troubleshooting information check the Support page at www.FreeWave.com. FreeWave provides Technical Support, Monday through Friday, 8:00 AM to 5:00 PM, Mountain Time (GMT -7) Call toll-free at 1-866-923-6168 or factory direct after hours at 303-381-9200 or email at moreinfo@FreeWave.com... -
Page 58: Errata
MM2 Spread Spectrum Wireless Data Transceiver User Manual Errata Firmware Version 8.68 • Initial Release Firmware Version 8.69 Fixes/Improvements • Link acquisition issue corrected Firmware Version 8.70 • Minor back-end changes Firmware Version 8.71 Fixes/Improvements • Improved efficiency and reliability of writing TDMA settings to memory •...
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