ELPRO 805U Operation & User’s Manual

Text of ELPRO 805U User Guide:

• ELPRO 805U, Chapter Three Operation Man_805U Rev 1.8 Page 15 DB9 Connector Pinout Pin Name Direction Function 1DCDOut Data carrier detect – - driven when link is established in controlled mode - driven always in transparent mode 2RD Out Transmit Data – Serial Data Output 3TD In Receive Data – Serial Data Input 4DTRIn Data Terminal Ready - DTR can be configured to initiate low power mode, or to force a link disconnection (“hang up” in controlled mode. 5SG Signal Ground 6DSROut Data Set Ready - always high when unit is powered on. 7RTSIn Request to Send - hardware flow control configurable 8CTSOut Clear to send - hardware flow control configurable 9RI Ring indicator - ind

• ELPRO 805U, Contents Man_805U Rev 1.8 Page 5 CONTENTS WARNING ...............................................................................................................................4 CHAPTER ONE INTRODUCTION .........................................................................7 1.1 G ENERAL ........................................................................................................................7 1.2 T RANSPARENT M ODE ...................................................................................

• 805U Radio Modem Module User Manual Page 6© November 2004 CHAPTER FOUR CONFIGURATION.............................................................................29 4.1 B EFORE C ONFIGURING ..................................................................................................29 4.2 A DDRESSING .......................................................

• ELPRO 805U, Chapter One Introduction Man_805U Rev 1.8 Page 7 Chapter One INTRODUCTION 1.1 General The 805U radio modem module has been designed to provide flexible and reliable radio modem functions, at an economical price. Radio modems transmit serial data over a long distance via radio. The serial data is not changed - the output data is the same as the input data. Although the 805U is intended to be simple in its application, it also provides many sophisticated features. This manual should be read carefully to ensure that the modules are configured an

• ELPRO 805U, 805U Radio Modem Module User Manual Page 16 © November 2004 HOST 805U HOST RS485 CONNECTIONS 120Ω RS485 SUPPLY RS232 DIP SWITCH FOR 120Ω 120 HOST HOST 805U + - + - + - RS485 CONNECTION USING TERMINATING RESISTOR

• 805U Radio Modem Module User Manual Page 44 © November 2004 Module #2 Set the module to factory default settings: AT&F Set the system address to the same random number: AT&S217 Set the unit address to 2 AT&U2 Set the operating mode to controlled mode AT&M2&L3 Note that this module can be configured as any controlled mode, except for fast operatio

• ELPRO 805U, 805U Radio Modem Module User Manual Page 14 © November 2004 the direction of transmission to benefit from the gain of the antenna. The Yagi antennas may be installed with the elements in a vertical plane (vertically polarized) or in a horizontal plane (horizontally polarized). For a two station installation, with both modules using Yagi antennas, horizontal polarization is recommended. If there are more than two stations transmitting to a common station, then the Yagi antennas should have vertical polarization,

• ELPRO 805U, Chapter Three Operation Man_805U Rev 1.8 Page 13 as 10D-FB, or a higher gain antenna should be used. Collinear antennas should be mounted vertically, at least 1 metre away from a wall or mast. 2.2.2 Yagi antennas. A Yagi antenna provides high gain in the forward direction, but lower gain in other directions. This may be used to compensate for coaxial cable loss for installations with marginal radio path. The Yagi gain also acts on the receiver, so adding Yagi antennas at both ends of a li

• ELPRO 805U, Chapter Three Operation Man_805U Rev 1.8 Page 27 configured, receives a message without an error-check, it will treat the last two data bytes as the error check - the error-check will always be incorrect and no data will be output. Error-check is strongly recommended for controlled mode operation. If error-check is not configured, then a 805U unit will transmit an acknowledgment message (ACK) whenever it receives a radio message, without checking for errors. If error-check is configured, the unit will only transmit an ACK message if the error-check is correct. I

• ELPRO 805U, Contents Man_805U Rev 1.8 Page 3 Thank you for your selection of the 805U radio modem. We trust it will give you many years of valuable service. ATTENTION! Incorrect termination of supply wires may cause internal damage and will void warranty. To ensure your 805U enjoys a long life, double check ALL your connections with the user’s manual before turning the power on.

• ELPRO 805U, 805U Radio Modem Module User Manual Page 34 © November 2004 the master will transmit the check message up to five times. If there is still no ACK, then the master will reset the link (DCD reset). If you enter an “Inactivity Timeout” value, then the 805U will automatically reset the link if there has been no data transmissions within this time. If you use the link check feature, you should enter an “Inactivity Timeout” value to reset the link at the slave unit. It is a good idea to use these timers as it provides a higher level of security for

• ELPRO 805U, Chapter Seven Warranty and Service Man_805U Rev 1.8 Page 51 Chapter Seven WARRANTY & SERVICE We are pleased that you have purchased this product. ELPRO products are warranted to be free from manufacturing defects for a period of 12 months from the effective date of purchase by the end user. The effective date of purchase is decided solely by ELPRO Technologies. This warranty does not extend to: - failures caused by the operation of the equipment outside the particular product's specification, or - use of the module not in accordance with this User Manual, or - abuse, misuse, neglect or damage by external caus

• ELPRO 805U, 805U Radio Modem Module User Manual Page 36 © November 2004 DTR Control The DTR signal on the RS232 port can be used for different functions in controlled mode: ! “Ignore DTR” - the DTR signal does not perform any function ! “Command Mode” - if the host resets DTR, the 805U will go into command mode - when DTR is activated, the module will revert to on-line mode ! “Command Mode, Disconnect” - as above except that the module will also force a disconnection of the communications link ! “Low Power, Disc

• ELPRO 805U, Tel: ++27 21 762 8995 Fax: ++27 21 762 8996 Fax2email: ++2786 660 0510 Postal address: P.O Box 24110, Lansdowne, Cape Town, 7779 Street address: 47 Flamingo Crescent, Lansdowne, Cape Town, 7780 [email protected] | www.tabateq.com Contact us for any additional information on these or any other product ranges, or place an order find out more information here

• ELPRO 805U, 805U Radio Modem Module User Manual Page 28 © November 2004 the normal radio level by mounting the antennas higher or in a better location. This not always possible. System performance may be improved by changing the following parameters :- • If in transparent mode, try controlled mode. • If configured for a radio data rate of 76800 or 38400 bits/sec, reduce the rate to 19200 bits/sec. • If large radio messages are being transmitted, reduce the maximum message length, and transm

• ELPRO 805U, Chapter Five Specifications Man_805U Rev 1.8 Page 33 At the master unit, you need to enter the address of the slave. Select the “Stored Add” page and “Dest1”. The address of the slave is entered into “Dest Add 1” and up to five repeater addresses may be entered. Repeater modules may be configured in any controlled mode option, but they must have the same system address. The repeater addresses are entered in order from the master - that is, “Rpt 1” is the first repeater after the master. You can enter address structures for four slaves - “Dest 1” to “Dest 4”. However the host must use AT command to select which slave is required. Without the u

• ELPRO 805U, 805U Radio Modem Module User Manual Page 46 © November 2004 Chapter Five SPECIFICATIONS General EMC specification EN 300 683 89/336/EEC Radio specification EN-300-220/1 869.4 – 869.65 MHz, 500mW Housing 110 x 185 x 30mm DIN rail mount Powder-coated, extruded aluminium Terminal blocks Removable Suitable for 2.5sqmm conductors LED indication OK operation, Serial RX and TX, Radio RX and TX, DCD active Operating Temperature -30 to +60 degrees C -40 to +70 degrees C 0 – 99% RH non- condensing Full performance Typical performance Power Supply Nominal supply 10 to 30VDC 13 to 24VAC Overvoltage and reverse voltage protected Current Drain @ 12VDC 80 mA quiescent 2

• ELPRO 805U, Chapter Six Troubleshooting Man_805U Rev 1.8 Page 49 &T2 Transmit & Receive BER Test. Used with a second module configured as a transparent repeater. &T3 RSSI Measurement. Monitors the received signal strength, and displays in dBm. Most radio tests are carried out using the AT&T2 test as this is the easiest to accomplish. AT&T3 - Received Signal Strength Display This option provides for testing the radio path between two 805U units. Although a pair of units may communicate successfully, radio communication may be affected by a range of influences, inclu

• ELPRO 805U, Chapter Three Operation Man_805U Rev 1.8 Page 17 Chapter Three OPERATION 3.1 Power-up and Normal Operation When power is initially connected to the 805U module, the module will perform internal diagnostics to check its functions. The following table details the status of the indicating LEDs on the front panel under normal operating conditions. LED Indicator Condition Meaning OK On Normal Operation Radio RX GREEN flash RED flash Radio receiving data Weak radio signal Radio TX Flash Radio Transmitting Serial

• Appendix A Hayes Commands Man_805U Rev 1.8 Page 57 RB is radio baud Rate, (in bits per second) TD is transmit delay (0.008) MP is the maximum packet size to be transferred NB is the maximum number of bit times delay allowed between characters in the protocol. S19 is calculated as S19 = 1000 * (NB/SB) (Rounded up) Response Codes Response codes display the status of the

• 805U Radio Modem Module User Manual Page 4© November 2004 How to Use This Manual To receive the maximum benefit from your 805U product, please read the Introduction , Installation and Operation chapters of this manual thoroughly before putting the 805U to work. Chapter Four Configuration details the configurations available and explains the diverse o

• ELPRO 805U, Chapter Three Operation Man_805U Rev 1.8 Page 23 If the source unit does not receive an ACK message, it will re-transmit the same message. It will attempt to transmit the message up to five times. If the unit still does not receive an ACK message after five attempts, it will reset the DCD LED, and reset the DCD output. During normal operation, if there has been no radio activity for a period (called the “link check” period), the “master” unit will transmit the “connect” message to check the radio path. The

• ELPRO 805U, 805U Radio Modem Module User Manual Page 42 © November 2004 4.6 Configuration Examples Transparent Mode Extending a PLC Network Left-hand Unit Configuration Set the module to factory default settings: AT&F Set the system address to a random number: AT&S138 Set the group address AT&G1 The group address for the left hand side modules has been set to 1. Set the serial data rate to 38400 ATC6 Set the radio data rate to 19200 not necessary (default) Set the character type to 7,1,2,even AT&B13 Exit and save t

• ELPRO 805U, Chapter Five Specifications Man_805U Rev 1.8 Page 43 Set the serial data rate to 9600 ATC4 Set the radio data rate to 19200 not necessary (default) Set the character type to 7,1,2,even AT&B13 Set the operating mode to Transparent Repeater AT&M1&L1 Exit and save the configuration AT&W ATO Right-hand Unit Configuration Set the system address to the same random number: AT&S138 Set the group address AT&G2 Set the serial data rate to 9600 ATC4 Set the radio data rate to 19200 not necessary (default

• ELPRO 805U, Appendix A Hayes Commands Man_805U Rev 1.8 Page 55 &T0 Transmit Bit Error Rate Test. Generates pseudo random data and sends out radio. &T1 Receive Bit Error Rate Test. Receives data from &T0 module, and records BER statistics. &T2 Transmit & Receive BER Test. Used with a second module configured as a transparent repeater. &T3 RSSI Measurement. Monitors the received signal strength, and displays in dBm. AT&V View Current Configuration – List the value of all settings as well as S-Registers. &am

• ELPRO 805U, 805U Radio Modem Module User Manual Page 8© November 2004 The operation of the 805U radio modem is relatively simple. As data is received at the serial port, the data is transmitted on the radio channel. Up to 530 bytes of data can be transmitted in one transmission. The radio transmission commences when the first data byte is received, and ends when there are no more data bytes in the input buffer, or when the number of bytes transmitted equals the maximum message length (user configurable - default 530 bytes). If more than 530 bytes is input, the 805U unit will transmit the first 530 bytes, then

• Chapter Five Specifications Man_805U Rev 1.8 Page 35 • After each message is transmitted, a 805U unit will not transmit another message during the transmit delay time. This could be used to allow a reply message to be received before the next message is sent. • After a message is received, a message will not be transmitted during the receive delay time. This could be used to de

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