MDR290X user`s manual.book
Contents
1. Channel 0x10 Channel 0x15 System ID 0x01 System ID 0x05 4 gt BLACK BOX ME NETWORK SERVICES MDR29X SETTINGS SETTINGS 1 Client Server Designates MDR29x type In each network there must be only one Server All other MDR29x units must be programmed as Clients The number of Clients in the network is not limited however if performance diminishes consider additional RF Networks 2 Interface Baud Rate This defines the baud rate used for communicating with the MDR29x over the serial interface The RF baud rate is fixed at 76 8 Kbps and is independent of the Interface Baud Rate The default baud rate setting is 57600 bps unless the units have been pre configured by Black Box The Interface Baud Rate setting of the MDR29x must match the Baud Rate setting of its host device 3 Channel Number A number that designates an independent network of MDR29x units Up to 32 independent networks can be created The valid range of values for this field is 16 to 47 4 Max Transmit Retries For Clients and Servers in Point to Point networks only This value represents the maximum number of times a particular data packet will be transmitted unsuccessfully or without an acknowledgement before the MDR29x discards the packet The default value is 16 attempts If communication is lost and the Client s Link LED is on try increasing this value in small increments until communication is reestablished Note This v2. prompt If Auto Archive is enabled the software will prompt the user to type a description of the changes made SHOW DEFAULTS BUTTON When the Show Defualts button is pressed the GUI view will be updated with the default settings for the selected product This feature is only available on the GUI Page and will not work when using the EEPROM Editor View PAIRING BUTTON The pairing button can be used to pair address two radios together The two radios must both be connected to the PC and to the Ports specified on the PC Settings page The pairing function sets one radio as a Server and the other as a Client and programs each radio s Destination Address with the other radio s MAC Address LOAD SAVE TO FILE BUTTONS A file previously created by this software can be loaded to restore an EEPROM to a former state Files of type TXT and EE can be loaded 4 gt BLACK BOX oe NETWORK SERVICES CHAPTER 6 CONFIGURATION UTILITY An EEPROM can be saved to a file using the Save to File button This allows for the current state of the EEPROM to be restored at a later time PORT 1 PORT 2 BUTTONS When Port 1 is depressed the Write Radio and Read Radio buttons communicate through Port 1 When Port 2 is depressed the Write Radio and Read Radio buttons communicate through Port 2 CALC BAUD BUTTON The Baud pull down menu includes all standard PC baud rates To select a non standard baud rate the Calc Baud button can be pressed
3. The MDR294A does not have a RS 485 address therefore it will transmit all RS 485 traffic over the RF Conversely as soon as a MDR294A receives a packet over the RF it will transmit the packet over the RS 485 bus TABLE 4 MDR29X TERMINAL BLOCK PINOUT SOCK PIN SIGNAL NAME DESCRIPTION 1 VCC 6 18V 1 3A required 1 6 2 485 485B OOO OOO 3 N C No Connect 4 N C No Connect 5 485 485A 6 GND Ground Note When using RS485 2 wire Half Duplex a RS485 to RS232 converter is required to configure the unit Figure 9 RS232 485 Converter MDR294A Terminal Block Power Connector RS232 485 Converter Many simple 2 or 4 wire converters do not provide hardware flow control capabilities and therefore require Handshaking to be disabled in the Black Box Configuration Utility to configure the radio Check with your converter Manufacturer for any specific requirements 4 gt BLACK BOX ga NETWORK SERVICES CHAPTER 3 SERIAL INTERFACE USB MDR291A Universal Serial Bus USB is a connectivity specification developed by Intel and other technology industry leaders USB provides ease of use expandability and speed for the end user The USB bus supplies 5V DC regulated power maximum 500mA through each port on pins 1 and 4 Low power devices that might normally require a separate AC adapter can therefore be powered via the USB cable eliminating the need for associated AC ad
4. the software is stored in the following location on the Start Menu Start gt All Programs gt Black Box Network Services gt Black Box Config The software will attempt to open COM1 of the PC If there is a conflict or the port does not exist the software will show the port as unavailable This has occurred for one of the following reasons 1 There is other software running that has control over the COM1 port Locate this software and shut it down while running Black Box Config software 2 The PC either does not have a COM1 port or the port has been disabled PC SETTINGS PAGE The PC Settings page is shown below as it will appear the first time the program is run Select the correct product in the Product pull down menu Doing this will automatically select the default baud rate for that particular transceiver If the COM port is listed as unavailable a different COM port can be selected in the Port pull down menu The software can use two serial ports if the Enabled box is checked 4 gt BLACK BOX ga NETWORK SERVICES CHAPTER 6 CONFIGURATION UTILITY 17 i MDR292A Configuration Test Utility Edo Tema Portl Settings Options USB COM Port Find Open Port JV Save Settings on Exit O TCP IP Port Ports V Read Write with AT Commands Port Status Open JV Use Auto Baud Port Port USB to Serial Bridge COM4 A Auto Archive EEPROM Settings Baud Rate 57600 Product Parity None recommended Pro
5. RTS lt TXD RXD GND DCD DSR RI NC NC NC DCD 4 DSR lt RI ne 4 J1 J2 SIGNAL Figure 7 DB9F to DB9F Straight Through Cable 1 1 DCD 2 2 RXD J2 J1 3 3 TXD 16 4 4 DTR 5 5 GND 53 6 6 DSR 7 7 RTS pe 1 70 g 8 8 CTS 9 9 RI Shell Shell GND lt BLACK BOX NETWORK SERVICES 1 877 877 2269 www blackbox com J1 9 Shell J2 N C 3 7 N C Shell SIGNAL DCD RXD TXD DTR GND DSR RTS CTS RI GND BLACK BOX CHAPTER 3 SERIAL INTERFACE Figure 8 DB9M to DB9 Female Null Modem Cable J2 J1 ran 1 70 72 00 a 1 70 If you previously used a straight through cable to connect your PC to your device you ll need to use a null modem cable or adapter to connect the MDR292A to that device 1 877 877 2269 www blackbox com NETWORK SERVICES CHAPTER 3 SERIAL INTERFACE RS485 MDR294A The RS 485 interface uses a Differential Data Transmission that can help nullify the effects of ground shifts and induced noise signals that can appear as common mode voltages on a network The MDR294A implements a RS 485 2 wire Half Duplex multi drop interface Typically a RS 485 bus will consist of a master and several slaves The nodes will have unique addresses and can send addressed packets to specific nodes Because the bus is half duplex no two nodes should try to talk at the same time
6. any radio can send to another radio at any point in time are much more difficult to implement without the use of CTS 4 gt BLACK BOX RR NETWORK SERVICES THEORY OF OPERATION RF ARCHITECTURE The MDR29x utilizes a Server Client network where all Clients synchronize their hopping to the Server The Server transmits a beacon during the first 1 ms of every hop 20 ms The Client transceivers listen for this beacon and upon hearing it assert their In Range Low and synchronize their hopping with the Server Each network should consist of only one Server and there should never be two servers on the same RF Channel number in the same coverage area as the interference between the two servers will severely hinder RF communications MODES OF OPERATION The MDR29x has three different operating modes Receive Transmit amp Command Mode If the transceiver is not communicating with another radio it will be in Receive Mode actively listening for a beacon from the Server If the Client determines that the beacon is from a server operating on the same RF Channel and System ID it will respond by asserting In Range Low A transceiver will enter Transmit or Command mode when the OEM Host sends data over the serial interface TRANSMIT MODE All packets sent over the RF are either Addressed or Broadcast packets Broadcast and Addressed delivery can be controlled dynamically with the API Control byte and corresponding on the fly commands To prohi
7. lt BLACK BOX NETWORK SERVICES MDR29x Wireless 900 MHz Modem User s Manual Version 1 5 1000 Park Drive Lawrence PA 15055 1018 Website www blackbox com Email info blackbox com Order Toll Free in the US Call 877 877 BBOX Outside the US call 724 746 5500 DOCUMENT INFORMATION Copyright 2006 Black Box Inc All rights reserved The information contained in this manual and the accompanying software programs are copyrighted and all rights are reserved by Black Box Inc Black Box Inc reserves the right to make periodic modifications of this product without obligation to notify any person or entity of such revision Copying duplicating selling or otherwise distributing any part of this product or accompanying documentation software without the prior consent of an authorized representative of Black Box Inc is strictly prohibited All brands and product names in this publication are registered trademarks or trademarks of their respective holders This material is preliminary Information furnished by Black Box in this specification is believed to be accurate Devices sold by Black Box are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only Black Box makes no warranty express statutory and implied or by description regarding the information set forth herein Black Box reserves the right to change specifications at any time and without notice Black Box s products are i
8. Industry Canada IC MDR291A 2268C AC4490 MDR292 4A 2268C AC44901000 B LACK BOX TWORK SERVICES 1 877 877 2269 www blackbox com SERIAL INTERFACE The MDR29x supports RS232 RS485 and USB protocols seperate products Black Box wireless solutions are not subject to the cabling restrictions for distance and either interface is available when ordering Figure 1 MDR29x Status LEDs Status LEDs RPSMA Antenna Connector a Z N Pd A N A JAN ae GH e O NA Pwr Link Rx Tx TABLE 2 STATUS LEDS LED COLOR DESCRIPTION Pwr Green On indicates that the unit is powered up Link Red On indicates that the Client unit s and Server unit are in range of each other Client units activate the Link LED when in Range of the Server unit Always lit on a Server unit RXD Green When flashing indicates that the MDR29x is receiving data TXD Red When flashing indicates that the MDR29x is transmitting data Figure 2 MDR292A Figure 3 MDR294A Terminal Block DB9 Male Connector Power Connector 7 Power Connector 4 7 x Figure 4 MDR291A ff USB Type B connector ra S A LAN ga NE 4 gt BLACK BOX mm NETWORK SERVICES RS232 MDR292A CHAPTER 3 SERIAL INTERFACE RS232 is a single ended data transmission protocol The RS232 signals are repre
9. This will bring up the following window amp Calculate Baud Rate Desired Baud Rate d Actual Baud Rate Ga Baud High Address 43H Baud Low Address 42H To calculate the settings for a particular baud rate type that baud rate into the Desired Baud Rate window and click the Calculate button If the baud rate is not supported by the radio an error message will be displayed Otherwise the information will be filled in and the Update button will be enabled An example is shown below amp Calculate Baud Rate Desired Baud Rate prod Save Actual Baud Rate 57 600 0 Cancel Baud High Address 43H 0 Baud Low Address 42H FC Clicking the Save button will cause the baud rate shown in the Actual Baud Rate window to be displayed in the Baud window on the Configure page of the software Clicking Cancel will ignore these changes The Actual Baud Rate will not always match the Desired Baud Rate However the program verifies that the Desired Baud Rate is within 3 of the Actual Baud Rate as required by the radio HEX DECIMAL BUTTON All of the text entry type boxes found on the Configure page have a button located to the right of the box When pressed a menu will be shown which allows the selection of either Hexadecimal or Decimal numbering format for that particular text box When the program is restarted all text boxes will revert back to Hexadecimal TERMINAL CHAT PAGE The Term
10. alue is always associated to Client radios and Server radios in Point to Point Mode The valid range of values for this field is 1 to 255 5 Broadcast Attempts For Servers in Point to Multipoint networks only This value represents the number of times a data packet will be transmitted by the Server MDR29x The default value is 4 attempts If communication is lost and the Clients Link LED is on try increasing this value in small increments until communication is reestablished The valid range of values for this field is 1 to 255 6 System Identification A number from 0 to 256 that provides added security to each independent network of MDR29x units The System ID is used in conjunction with the Channel Number and serves as an RF password to maintain secure transfers of data The combination of the Channel Number and System ID must be unique to each network of MDR29xs to establish communication Multiple Servers in the same coverage area must be programmed with different Channel Numbers to prevent inoperability of the networks The System ID will not prevent inoperability that occurs from locating multiple Servers with the same Channel Number in the same coverage area Note Separate Collocated MDR29x networks must operate on different Channel Numbers All units ina given MDR29x network must have identical Channel Numbers and System IDs 7 Data Encryption Key Encryption is the process of encoding an information bit stream to secure the data co
11. an FF FF FF FF FF FF the radio will send data only to the radio whose MAC matches that specified in the Destination Address field point to point 2 If the Destination Address field is set to FF FF FF FF FF FF on a client radio it will be set to auto destination mode amp transmit to the radio whom it last received a packet from 3 If the Destination Address field is set to FF FF FF FF FF FF on a server radio it will be set to Broadcast mode amp transmit to all available clients point to multipoint 4 gt BLACK BOX oe NETWORK SERVICES CONFIGURATION UTILITY OVERVIEW Black Box provides an easy to use Configuration utility to program and test the MDR29x The GUI based software is compatible with Microsoft Windows 95 98 2000 ME NT amp XP The MDR29x is a plug and play device which requires minimal or no configuration SOFTWARE INSTALLATION Locate the OEM software folder on the Black Box Tools amp Literature CD and install the development kit software To install the software run Setup exe and follow the installation prompts During the installation the software will prompt the user to install the Black Box USB Driver It is recommended that the user installs the driver at the same time as the software The installer will notify the user when the software has successfully been installed The user may be prompted to reboot the PC to complete the installation Click OK to complete the installation By default
12. aptors The MDR291A draws all of its power directly from the USB bus and requires no external power supply TABLE 5 MDR291A USB TYPE B PINOUT OCR PH SIGNAL NAME DESCRIPTION o GR 1 VBus 4 75 5 25V 500mA Red 2 D Transmit Receive Data White 3 D Transmit Receive Data Green 4 GND Ground Black USB DEVICE TYPES There are two types of USB devices Masters amp Slaves A USB Master device is essentially a host device i e PC that supplies the USB drivers A USB Slave device peripheral devices such as a keyboard mouse etc gets connected to a USB Master device and uses the USB driver supplied by the Host When a USB Slave device gets connected to the Host i e PC the Host prompts the device for the appropriate USB driver Once the driver has been located the Host loads and retains it for all subsequent connections of the Slave device Note The MDR291A is a USB Slave device peripheral and cannot be connected to another USB Slave device USB DRIVER The MDR291A is a stand alone RF module that interfaces to a USB port on the Host device It uses a Virtual COM Port driver that causes the device to appear as an additional COM Port on the PC Application software can then access the USB device in the same manner as it would access a standard COM Port The MDR291A is a plug and play device that will automatically be detected by the PC upon connection Once detected the PC starts the Add New Hardware wizard and installs t
13. bit transceivers from receiving broadcast packets Unicast only can be enabled ADDRESSED PACKETS When sending an addressed packet the RF packet is sent only to the receiver specified in destination address To increase the odds of successful delivery Transmit retries are utilized transparent to the OEM Host the sending radio will send the RF packet to the intended receiver If the receiver receives the packet free of errors it will return an RF acknowledge within the same 20 ms hop If a receive acknowledgement is not received the radio will use a transmit retry to resend the packet The radio will continue sending the packet until either 1 an acknowledgement is received or 2 all transmit retries have been used The received packet will only be sent to the OEM Host if and when it is received free of errors BROADCAST PACKETS When sending a broadcast packet the RF packet is sent out to every eligible transceiver on the network To increase the odds of successful delivery Broadcast attempts are utilized Transparent to the OEM Host the sending radio will send the RF packet to the intended receiver s Unlike transmit retries all broadcast attempts are used regardless of when the RF packet is actually received and without RF acknowledgements If the packet is received on the first attempt the receiver will ignore the remaining broadcast attempts The received packet will only be sent to the OEM Host if and when it is received free of er
14. duct MDR2924 a Handshaking Hardware recommended Data Bits 18 zl Stop Bits 1 Port2 Settings Enabled M Hardware recommended a Handshaking Portl Open RTS Part High CTS Port Low Communications idle PORT1 PORT2 OPTIONS The software can control up to 2 COM ports including virtual COM ports which physically map to USB or Ethernet ports The Port pull down menu allows selection of COM1 through COM16 An error message will be displayed if a port is selected that is either nonexistent or already occupied by another software program When a port selection is made the software will attempt to open the port and list its status as Unavailable Open or Closed Although menus are shown for Data Bits Parity and Stop Bits only the Parity menu selection can be changed FIND PORTS BUTTON If the available COM ports are unknown the Find Ports button can be pressed to update the COM Port pull down menu with all available COM ports HANDSHAKING By default the OEM utility will use hardware handshaking and monitor the CTS RTS lines For cases where these lines are not readily available such as RS 485 communications the handshaking can be disabled by selecting None from the dropdown box OTHER OPTIONS These are additional options that can be enabled 4 gt BLACK BOX oe NETWORK SERVICES CHAPTER 6 CONFIGURATION UTILITY SAVE SETTINGS ON EXIT When enabled all changes made to t
15. each other over the RF To prevent this Full Duplex Mode can be enabled This mode restricts Clients to transmitting on odd BF Delivery numbered frequency bins and the Server to E transmitting on even frequency bins Though the MAC Address RF hardware is still technically haf duplex 4 makes Firmware Version the transceiver seem full duplex This can cause Date of Birth overall throughputs to be cut in half Note All Full Part Number 14 4 Curent 0 records found for this radio bibi Poti Pairing Show Defaut Compare EE Load File Save to File Print Write Radio Read Radio Portt Open RTS Port High CTS Port Low CT Communications idle E e There are five sections on the Configure page Radio Interface Radio RF Radio Features Radio Other and Info Center The fields displayed in these sections vary depending on the Product Mode The Info Center provides a quick description of each setting mode For detailed decriptions of the individual settings please refer to the OEM Module user s manual READ RADIO BUTTON To update the Configure and EEPROM Editor View pages with the EEPROM contents of a radio currently connected to the proper port on the PC click the Read Radio button An example of the Configure page after a transceiver has successfully been read is shown below 4 gt BLACK BOX M NETWORK SERVICES CHAPTER 6 CONFIGURATION UTILITY a Em Configure TemnalCha Radi
16. erference MDR29x transceivers operate in a Point to Point or Point to Multipoint Client Server architecture One transceiver is configured as a Server and there can be one or many Clients To establish communication between transceivers the Server emits a beacon and upon detecting a beacon RF link is established with the Client s MDR29x s implement a proprietary communication protocol to provide secure data transmissions The use of FHSS technology ensures data reliability over long distances Use of license free frequency bands ensure that the units are ready for use with no further certification requirements Each unit is small and easily portable for use in mobile and temporary settings as well as for fixed installations The Black Box MDR29x configuration software enables custom configurations based on unique application requirements 4 gt BLACK BOX e NETWORK SERVICES CHAPTER 1 MDR29X RF TRANSCEIVER This document contains information about the hardware and software interface between an Black Box MDR29x transceiver and an OEM Host Information includes the theory of operation specifications interface definition configuration information and mechanical drawings The OEM is responsible for ensuring the final product meets all appropriate regulatory agency requirements listed herein before selling any product Note MDR29x modules will be referred to as the radio or transceiver Individual naming is used to dif
17. ferentiate product specific features The host PC Microcontroller or any device to which the MDR29x is connected will be referred to as OEM Host 4 gt BLACK BOX RR NETWORK SERVICES SPECIFICATIONS TABLE 1 MDR29X SPECIFICATIONS INTERFACE Serial Interface Connector DB 9 Male RS 232 Terminal Block RS 485 Type B USB USB RF Connector RPSMA J ack Serial Interface Data Rate Baud rates from 1200 bps to 115 200 bps Power Consumption typical 400 mA 12VDC Channels 32 USA 7 Australia Supported Network Topologies Point to Point Point to Multipoint Security One byte System ID 56 bit DES encryption key Interface Buffer Size Input Output 256 bytes each OPERATIONAL Frequency Band 902 928 MHz USA 915 928 MHz Australia RF Data Rate 76 8 kbps fixed RF Technology Frequency Hopping Spread Spectrum Output Power Conducted no antenna EIRP 3dBi gain antenna MDR292 4A 743mW typical 1486mW typical MDR291A 100mW typical 200mW typical Supply Voltage MDR292 4A 7 18VDC MDR291A USB Supplied 5V Sensitivity 100dBm typical 76 8kbps RF Data Rate Range Line of Site based on MDR291A Up to 4 miles 3dBi gain antenna MDR292 4A Up to 20 miles ENVIRONMENTAL Temperature Operating 40 C to 80 C Temperature Storage 50 C to 85 C PHYSICAL Dimensions 4 4 x 2 7 x 1 4 inches Weight 6 oz 170 g CERTIFICATIONS FCC Part 15 247 MDR291A KQLAC4490 100 MDR292 4A KQLAC4490
18. he Settings page will be automatically loaded the next time the software is run Otherwise the changes will be discarded READ WRITE WITH AT COMMANDS When enabled the software will use AT Commands for its read write EEPROM functions instead of the standard configuration commands This box should be checked at all times unless Pin 15 CMD DATA is pulled Logic Low or the Program Normal switch is set to Program Mode AUTO BAUD When enabled the software will scan all available COM Ports using the most common baud rates until a radio is found If no radio is found or the software cannot open the port an error message will be reported The software will only use Auto Baud when prompted by the user after an unsuccessful write process To cancel the Auto Baud process press the ESC key AUTO ARCHIVE When enabled the software will archive the EEPROM settings for each radio after a successful write process Although not required the software will prompt the user to type a description of the changes made Auto Archive can be used to restore the radio to a previously known working configuration The first time that a radio is read with Auto Archive enabled will be stored as the Original Configuration Settings with the date and time the record was created STATUS BAR Located at the bottom of the software the status bar gives the state of Port 1 RTS Port 1 CTS Port 1 Port 2 RTS Port 2 and CTS Port 2 lines When the text appears black
19. he USB driver The Black Box USB Driver is installed automatically with the OEM Configuration Utility It can also be installed manually using the procedure below 1 Connect the MDR291A device to the PC using a USB cable 2 Insert the Black Box Tools amp Literature Disk into the CD drive 3 Select Install from a specific location and then press the Next button 4 Select Search for the best driver option 5 Check the Search removable media CD ROM box and then press Next 6 Ifa Windows logo testing dialog appears select Continue anyway 7 Select Finish and reboot if prompted 4 gt BLACK BOX M NETWORK SERVICES CHAPTER 3 SERIAL INTERFACE HARDWARE FLOW CONTROL Flow control refers to the control of data flow between the host and the MDR29x It is the method used to handle data in the transmit receive buffer of the MDR29x interface and determines how data flow between the host and the MDR29x is throttled Often in serial communication one device is capable of sending data much faster than the other can receive Flow control allows the slower device to tell the faster device to pause and resume data transmission Flow control CTS and RTS are used by the MDR29x and its Host locally NOT over the air Therefore one MDR29x cannot tell the other to slow down or speed up as is mentioned above in the paragraph When the RTS Enable option is selected on the Configuration Utility the transceivers use hardware flow control to regula
20. inal Chat page is a terminal emulator simular to HyperTerminal used to send small data packets between two COM ports As data is received it is appended to the appropriate Port window An example of the Terminal Chat page is shown below 4 gt BLACK BOX oe NETWORK SERVICES CHAPTER 6 CONFIGURATION UTILITY E MDR292A Configuration Test Utility Gow Range Test Terminal Chat a Line 1 of 1 Send ASCII Display Hexadecimal Display Portl Open RTS Partl High Clear Font Port 1 Print Saveto Fie CTS Port Low Type characters to be transmitted The Pragram Normal switch must be set to Normal SEND BUTTON This button sends the data in the textbox out the selected port s is also sent over the RF with the data HEXADECIMAL ASCII DISPLAY New received data will be displayed in ASCII or Hexadecimal format depending on the current setting lt BLACK BOX NETWORK SERVICES The current user s Windows username 1 877 877 2269 www blackbox com CHAPTER 6 CONFIGURATION UTILITY RANGE TEST PAGE The Range Test page allows packets of data to be sent between two radios and reports the numbers of successes and errors Test Selection Tena C View TX Packets View RX Packets Range Test Port 1 Port 1 gt Port 2 Port 2 gt Port 1 te Port 1 lt gt Port 2 C Port 1 Send Only C Port 1 Receive Only C Port 1 Lo
21. k Box will repair or replace the OEM transceiver at their discretion If the product is replaced it may be a new or refurbished product MDR29X RF TRANSCEIVER The MDR29x transceiver is a Frequency Hopping Spread Spectrum FHSS radio designed for license free operation in the 900 MHz ISM band The radio sustains a standard asynchronous serial data stream between two or more radios out of the box Housed in a compact and rugged die cast enclosure the radio is equipped to replace miles of serial cable using an RS232 RS485 or USB interface MDR29X FEATURES NETWORKING AND SECURITY Retries and Acknowledgements e API Commands to control packet routing and acknowledgement on a packet by packet basis e Frequency Hopping Spread Spectrum for security and interference rejection e Customizable RF Channel number and system ID e Dynamic link analysis remote radio discovery e Low latency and high throughput EASY TO USE e Continuous 76 8 kbps RF data stream e Software selectable interface baud rates from 1200 bps to 115 2 kbps e Advanced configuration available using AT commands OVERVIEW The MDR29x uses Frequency Hopping Spread Spectrum modulation where the units hop from frequency to frequency many times per second using a specific hop pattern applied to all the transceivers in the same network A distinct hopping pattern is provided for each Channel Number thereby allowing multiple networks to co exist in the same area without int
22. l run for a specified time period Number of Runs Test will run for a specified number of runs Single Step Test will run for a single step Break on Error Test will run until an error occurs RECEIVE PACKET DISPLAY This section allows you to select how the received packets will be displayed Received packets can either be displayed in ASCII or Hexadecimal format marked with a time stamp and show only when an error has occurred 4 gt BLACK BOX M NETWORK SERVICES MECHANICAL Figure 11 MDR29x Mechanical 1 170 Ante SMA 0 536 0 060 0 000 Side View Label Recess 3 5w x 2 0h 0 1 2 7 sa A 2 375 D Connector 2 C Status 0 dia pin and 1 pin is PWR Pwr Link Rx Tx 4 0 000 Top View Q fas LO LO o o o LO co oo o LO S Q LO O N ao vt vt 4 gt BLACK BOX ga NETWORK SERVICES
23. ns idle TEST SELECTION There are six test options that can be selected There are three typical hardware setups 1 One radio is plugged into a serial or USB port on a PC The second radio is plugged into a separate power supply with a loopback adapter connected 2 One radio is plugged into a serial or USB port on a PC The other radio is plugged into a different serial or USB port on the same computer 3 One radio is plugged into a serial or USB port on a PC The other radio is connected to a serial or USB port on another PC If using two PCs for the test the software run on both sides should have the second COM port disabled on the settings page 1 877 877 2269 www blackbox com lt BLACK BOX NETWORK SERVICES CHAPTER 6 CONFIGURATION UTILITY TABLE 6 TEST SELECTION SETTINGS TEST SELECTION PORT 1 ACTION PORT 2 ACTION HARDWARE SETUP Port 1 gt Port 2 TX RX 2 Port 2 gt Port 1 RX TX 2 Port 1 lt gt Port 2 TX RX TX RX 2 Port 1 Send Only TX N A 3 Port 1 Receive Only RX N A 3 Port 1 Loopback TX RX N A 1 TRANSMIT PACKET SELECTION This section allows you to select the data packet used to perform the Range Test You may either create data of a specified byte length or load your own text or configuration file TEST TYPE The test type allows you to select how long the test will be performed TABLE 7 TEST TYPE TEST TYPE DESCRIPTION Continuous Test will run until stopped Timed Test wil
24. ntended for use in normal commercial and industrial applications Applications requiring unusual environmental requirements such as military medical life support or life sustaining equipment are specifically not recommended without additional testing for such application Limited Warranty Disclaimer Limitation of Liability For a period of one 1 year from the date of purchase by the OEM customer Black Box warrants the OEM transceiver against defects in materials and workmanship Black Box will not honor this warranty and this warranty will be automatically void if there has been any 1 tampering signs of tampering 2 repair or attempt to repair by anyone other than an Black Box authorized technician This warranty does not cover and Black Box will not be liable for any damage or failure caused by misuse abuse acts of God accidents electrical irregularity or other causes beyond Black Box s control or claim by other than the original purchaser In no event shall Black Box be responsible or liable for any damages arising From the use of product From the loss of use revenue or profit of the product or As a result of any event circumstance action or abuse beyond the control of Black Box whether such damages be direct indirect consequential special or otherwise and whether such damages are incurred by the person to whom this warranty extends or third party If after inspection Black Box determines that there is a defect Blac
25. ntent The DES algorithm is a common simple and well established encryption routine An encryption key of 56 bits is used to encrypt the packet The receiver must use the exact same key to decrypt the packet otherwise garbled data will be produced 8 Destination Address The MAC Address of the remote MDR29x in a Point to Point network Used to optimize Point to Point communications by utilizing RF Acknowledgement 9 Firmware Version Displays the MDR29x s firmware version 10 MAC Address A unique 6 Byte IEEE 802 3 Ethernet address assigned by Black Box to each MDR29x 4 gt BLACK BOX ga NETWORK SERVICES CHAPTER 5 MDR29X SETTINGS RADIO FEATURES 1 Data Encryption Enables the Data Encryption Key All MDR29xs in the same network must have the same encryption setting 2 RTS Enable Enables the Request To Send control line When enabled enables Hardware Flow Control 3 Parity Needs to be enabled if host requires even or odd parity and 8 data bits This is considered as 9 bit mode Note Enabling Parity cuts the overall throughput into half 4 Full Duplex This mode restricts Client radios to transmitting on odd numbered frequency hop bins and the Server to even numbered frequency hop bins Though the RF hardware is still technically half duplex it makes the transceiver seem full duplex This can cause overall throughputs to be cut in half Note All transceivers on the same network must have the same setting for Full D
26. o Interface Radio RF Radio Features 16 Dec RTS Enable Client Server eden nade RF Channel Number F Parity System ID Full Duplex Data Encryption Max Power Low Power 10mw Cond Max Transmit Retries Wireless Configuration and Test Utility Info Center Read successful Full Duplex lc Baud View in Full Window Lx H In Haf Duplex mode the transceiver will en packet out over the RF immediately This can packets sent at the same time by a Server anda T Client to collide with each other over the RF To prevent this Full Duplex Mode can be enabled This mode restrcis Clients to transmitting on odd RF Delivery Addressed numbered frequency bins and the Server to transmitting on even frequency bins Though the MAC Address 00 50 67 14 41 01 RF hardware is still technically half duplex 4 makes Firmware Version V 6 9 1 the transceiver seem full duplex This can cause D 0 B 9 28 2006 overall throughputs to be cut in half Note All Full Part Number MDR2924 14 4 Current 1 records found for this radio bi Port 1 Pairing Show Detaut Compare EE Load File Save to Fie Print Write Radio Portl Open RTS Portl Low CTS Port Low Communications idle WRITE RADIO BUTTON After making changes to the controls on the Configure page the Write Radio button can be pressed to save those changes to the radio EEPROM The user will be notified of a successful write with a Write successful
27. opback 01234567894BCDEFGH hijklmnoparstuywxy201 01234567894BCDEFGH hijklmnoparstuywxyz01 JKLMNOPGRSTUVWXYZabedefg A JKLMNOPQRSTUVWXYZabcdefg E 7 01234567894BCDEFGHIJKLMNOPGRSTUVWxXyZabedefg Transmit Packet Selection hikimnoparstuywxy201 Create Data 64 01234567894BCDEFGHIJKLMNOPGRSTUVWxyZabedefg hikImnoparstuywxyz01 C LoadFile Filename Status txt 01234567894BCDEFGHIJKLMNOPGRSTUVWxYZabedefg Test Type C Single Step Break on Error hikImnoparstuywxyz01 01234567894BCDEFGHIJKLMNOPGRSTUVWxyZabedefg Receive Packet Display hikimnoparstuvweyz01 Continuous ASCII C Hex 01234567894BCDEFGHIJKLMNOPOGRSTUVWxyZabedefg C Timed Only Display Errors tada Packet Time Stamp a NGGE GERuUn 0123456799ABCDEFGHIJKLMNOPORS TUVWXYZabedetg Fm hikImnoparstuywxyz01 Timing 01234567894BCDEFGHIJKLMNOPOGRSTUVWxyZabedefg 0 Tx Delay hikImnoparstuywxyz01 1000 Rx Timeout 01234567894BCDEFGHIJKLMNOPOQRSTUVWxyZabedefg hikImnoparstuywxyz01 Test Result 01234567894BCDEFGHIJKLMNOPORSTUVWxYZabedefg ee hikImnoparstuywxyz01 Runs 42 01234567894BCDEFGHIJKLMNOPGRSTUVWXYZabedelg Errors O hiklmnopqrstuywxy201 Percentage Good 100 01234567894BCDEFGHIJKLMNOPGRSTUVWxyZabedefg 3 hikimnoparstuyweyz01 emu Jomar neto Ue Ria 01234567838BCDEFGHIJKLMNOPORSTUVW lt YZabedefa hiikImnoparstuvwey201 Save to File vv Run F10 Portl Open RTS Portt High CTS Pol Low Port2 Open RTS Port2 High CTS Port2 Low Communicatio
28. over dn Ss lt Validate ERC A Transmit Packet Transmit Packet Sy A Y Yes A 7 Duplicate Yes S Packet A 1 Decrement us Broadcast Ng Attempts os Send Packet over Send RF Es F Ea Acknowledge Broadcast N Decrement Attempts 0 4 Transmit Attempts a Ed AO A wos 1 Transmit YES Attempts 0 2 w a NG ai 4 gt BLACK BOX oe NETWORK SERVICES CHAPTER 4 THEORY OF OPERATION NETWORK TOPOLOGIES Topology refers to the shape of a network or the network s layout How different nodes in a network are connected to each other and how they communicate is determined by the network s topology The MDR29xs support a Point to Point and a Point to Multipoint network topology POINT TO POINT A point to point network consists of a single Server and Client pair Sometimes referred to as a wireless bridge a point to point link replaces a single communications cable Y Z OEM OEM Host Host Server Client POINT TO MULTIPOINT Point to Multipoint systems have one base station or access point that controls communications with all of the other wireless nodes in the network This allows for the creation of a wireless network consisting of multiple nodes By programming each MDR29x with a network specific Channel Number and System ID multiple networks can be created Client W M Client Client W N Client e X ONN OWN Client Client Client Client
29. rors RECEIVE MODE When a transceiver is not in Transmit or Command mode it will be in Receive Mode listening for data While in Receive Mode subsequent data of up to 80 bytes can be received every hop 20 ms 4 gt BLACK BOX ga NETWORK SERVICES CHAPTER 4 THEORY OF OPERATION COMMAND MODE A radio will enter Command Mode when data is received over the serial interface from the OEM Hostand contains the AT Enter AT Command Mode command Once in Command Mode all data received by the radio is interpreted as command data Command Data can be either EEPROM Configuration or On The Fly commands FIGURE 10 PENDING RF AND DATA IN BUFFER FLOW 4 N di N gt Receive Mode gt Receive Mode A a P Se Ed y Y Pending RE Data in Buffer Received eS N E J x f YES N Fa ES Yes Broadcast N Command Data fa lt N Mode SS Discard Packet Packet yw Discard Packet N f Si d a 4 N J N 4 i A NG Ne E SP A YN _eceive TIN NG ka packet and A Addressed Packet wv check CRC NA NG NG N Yes X A A ASN a 3 N 4 N Yes lt Duplicate wo fa N Broadcast Packet lt Addressed Packet lt Packet lt Destination gt RE 9 MAG lt a Le Sie y Xe van a Send Packet
30. sented by voltage levels with respect to a system common power logic ground The idle state MARK has the signal level negative with respect to common and the active state SPACE has the signal level positive with respect to common TABLE 3 MDR29X DB9 MALE CONNECTOR PINOUT DB9 PIN SIGNAL NAME 1 2 6 1 3 DCD RXD TXD DSR GND DTR CTS RTS RI DESCRIPTION Data Carrier Detect Received Data Transmitted Data Data Set Ready Ground Data Terminal Ready Clear To Send Request To Send Ring Indicator INTERFACING TO OTHER RS232 EQUIPMENT The MDR292A is a DCE Data Communications Equipement device Typically devices like PC s are considered DTE Data Terminal Equipment devices while periphial devices are classified as DCE A DCE device can be interfaced to a DTE device using a straight through serial cable When interfacing two DCE or BLACK BOX NETWORK SERVICES 1 877 877 2269 www blackbox com CHAPTER 3 SERIAL INTERFACE two DTE devices together a null modem cable is required to swap the pins and convert the signals accordingly Figure 5 DTE to DCE Interface Figure 6 DCE to DCE Interface RS232 Device DTE RTS TXD RXD GND MDR292A Modem DCE CTS 4 RTS 4 TXD RXD GND RS232 Device DTE DCD DSR RI DCD 4 4 4 RTS TXD RXD GND MDR292A Modem DCE AX CTS 4
31. te data flow While using hardware flow control the transceiver that is ready to receive data sends a Clear To Send signal to its host or the device it is connected to On the other hand when a transceiver has something it wants to send to its host it checks the state of Ready To Send and if it is logic low will send data to its host If RTS is logic high it will not send data to its host These signals are sent apart from the data itself on separate wires Note CTS is always enabled by default RS 485 Interface does not support Hardware flow control Can implement a design using just Txd Rxd and Gnd Three wire Interface Yes However it is strongly recommended that your hardware monitor the CTS pin of the radio CTS is taken High by the radio when its interface buffer is getting full Your hardware should stop sending at this point to avoid a buffer overrun and subsequent loss of data You can perform a successful design without monitoring CTS However you need to take into account the amount of latency the radio adds to the system any additional latency caused by Transmit Retries or Broadcast Attempts how often you send data non delivery network timeouts and interface data rate Polled type networks where the Server host requests data from the Client host and the Client host responds are good candidates for avoiding the use of CTS This is because no one transceiver can monopolize the RF link Asynchronous type networks where
32. the current state will be shown When the text appears gray the current state will not be shown The text shown in the bottom status bar gives a simplified status of the current pending software process The software has no pending process when Communications Idle is shown ABOUT BUTTON The About button can be pressed to determine the revision number of the software and the contact information for Black Box Please include the software revision number in any correspondence with Technical Support CONFIGURE PAGE The Configure page is a GUI representation of the 256 byte EEPROM contents within the radio The same data is shown in a full hexadecimal dump of the EEPROM in the EEPROM Editor View The Configure page is shown below as it will appear until a radio is successfully read 4 gt BLACK BOX oe NETWORK SERVICES CHAPTER 6 CONFIGURATION UTILITY E MDR292A Configuration Test Utility go Tena Radio Interface Radio RF Radio Features F RTS Enable F Modem Mode Broadcast Attempts RF Channel Number F Parity Full Duplex Data Encryption Max Transmit Retries Client Server System ID Max Power r Info Center Radio Other Eull Duplex Interface Baud v Calc Baud View in Full Window H In Haf Duplex mode the transceiver will send a Destination Addr it packet out over the RF immediately This can cause D packets sent at the same time by a Server and a DES Key 96 Client to collide with
33. uplex 5 Modem Mode Full modem handshaking is supported by the transceivers when Modem Mode is enabled Modem Mode is incompatible with RS 485 Interface Enables DCD DTR DSR and Ring Indicator control lines PROGRAMMING THE MDR29X RADIO 1 Connect a MDR29x unit to the serial communications port on the PC 2 Connect the power supply to the MDR29x unit Make sure the Pwr LED is on 3 Start the Black Box Configuration Utility 4 Select the COM Port that is connected to the MDR29x unit on the PC Settings page 5 Select the Interface Baud Rate of the MDR29x unit All MDR29x units are shipped with a default rate of 57600 unless units have been pre configured to match specific serial settings If the Interface Baud Rate of the MDR29x unit is changed the PC Setting Baud Rate must be set to the same Baud Rate to allow proper programming of the units 6 Select Read Radio to display the current settings of the MDR29x unit 7 Change desired settings 8 After all changes have been made select Write Radio to save the changes 9 Cycle Power to the unit after all changes has been saved This will set the MDR29x unit to its normal mode of operation Note The Show Defaults button can be used to display the default Radio settings The Black Box Configuration utility automatically programs the mode point to point or point to multipoint based on the radio s current settings 1 If the Destination Address field is set to any value other th
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