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Warwick X7200 Manual

Synthesised radio modem
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WARWICK WIRELESS
WARWICK WIRELESS
WARWICK WIRELESS
WARWICK WIRELESS
X7200/X7200HP SYNTHESISED RADIO MODEM
THE MANOR, ASTON FLAMVILLE, LEICESTERSHIRE, LE10 3AQ ENGLAND
TEL: +44 (0) 1455 233616 FAX: +44 (0) 1455 233179 WEB: www.radiotelemetry.co.uk
LIMITED
LIMITED
LIMITED
LIMITED
WARWICK WIRELESS LIMITED

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Summary of Contents for Warwick X7200

  • Page 1 WARWICK WIRELESS WARWICK WIRELESS WARWICK WIRELESS WARWICK WIRELESS LIMITED LIMITED LIMITED LIMITED X7200/X7200HP SYNTHESISED RADIO MODEM WARWICK WIRELESS LIMITED THE MANOR, ASTON FLAMVILLE, LEICESTERSHIRE, LE10 3AQ ENGLAND TEL: +44 (0) 1455 233616 FAX: +44 (0) 1455 233179 WEB: www.radiotelemetry.co.uk...
  • Page 2 INDEX FEATURES SPECIFICATION Radio Modem Power Supply Mechanical and Environmental CONNECTIONS 9 Way D Connector LED Indicators OPERATION GETTING STARTED Basic Connections Power Connections Factory Settings Plug and Play CONFIGURATION Configuration Menu by Hard Wire Link Configuration Menu by Terminal Access Baud Rate Setting Parity On/Off Odd or Even Parity...
  • Page 3 TROUBLE SHOOTING No Data Transmission No Data Reception Corrupt Data Radio Path Help Line Number WARNING...
  • Page 4 All the parameters on the X7200 radio modem can be set by an internal menu selected by connecting pin 6 on the 9 way D Connector to 0v or typing $ ESC directly after the power has been applied.

  • Page 5: Specification

    The X7200 radio modem is powered from a regulated DC source of between 8.5v to 14V. In receive mode it will take 80mA and in transmit 330mA. Taking DTR low will switch the modem into a power saving stand-by mode.
  • Page 6 0.7Amps for 20mSec. It is not advisable to use a switched mode power supply either to drive the X7200 radio modem or in close proximity to it. This type of power supply can produce high energy radio frequencies over a broad spectrum thereby causing interference to the received signal.

  • Page 7: Operation

    3.1.2 9 Way D Type Connector RS485 +12V INPUT CONFIGURATION MODE INPUT DATA IN RS485 IN INPUT DATA IN RS485 IN INPUT DATA OUT RS485 OUT OUTPUT DATA OUT RS485 OUT OUTPUT (STANDBY) INPUT CARRIER DETECT OUTPUT INPUT LED Indicators Three LEDS on the front of the modem indicate the following states: Green On when modem is transmitting data.
  • Page 8 Power Connection PIN 1 = POSITIVE 12V PIN 5 = NEGATIVE 0V Factory Setting The radio modem is supplied with the following settings Baud Rate 9600 Parity Repeater mode Error Correction Address Mode Transmitter Address Receiver Address Transmitter Test Mode Transmission speed SLOW (5K bits/sec) RF Frequency (UK)
  • Page 9 RTS/CTS to OFF (no handshaking) Remove the power from the modem and connect 0v to pin 6 on the modem D Connector. When the power is reconnected the following will appear on the screen: WARWICK IND ELEC X7200 MODEM *.* BAUD PARY REPT...
  • Page 10 BAUD PARY REPT TXAD RXAD TXON To reconfigure the modem type N. The pointer will then be placed under the baud rate setting. Baud Rate Settings BAUD A baud rate is entered by typing a letter A to E as follows BAUD RATE LETTER 19200...
  • Page 11 FIGURE 2 ECHO BACK MODE (OPEN REPEATER) 6.6.2 Chain Repeaters If the Repeater Mode is used in conjunction with the Address Mode then a chain of modems can be set up. Each modem in the chain is given a receiving address and a transmitting address. The transmitting address must be the same as the receiving address of the next modem in the chain.
  • Page 12 The algorithm has the effect of reducing the data transmission speed by one third but extending the effective range. Address Mode ADDR Typing Y to this option will enable the Address Mode. The modem will transmit its TXAD at the start of each data string. It will not pass receiver data to the serial port unless the transmitter address of the incoming data string coincides with its receiver address RXAD.
  • Page 13 FIGURE 4 STATION ADDRESSING 6.8.3 Global Addressing The base station can send the same data to all the modems by using the Global Address 00 (Fig 5). The following instruction would be inserted before the data by the base station host: ATT00 FIGURE 5 GLOBAL ADDRESSING...
  • Page 14 RF Channel RFC One of the 17 RF channels can be set by typing a letter from A to Q as shown in Table 7.1.1. This frequency will be stored in the EEPROM and set every time the modem is switched on.

  • Page 15: Radio Transmission

    173.050MHZ 173.025MHZ 173.000MHZ Radio Propagation When installing a X7200 Radio Modem there are a number of factors that should be considered as they will affect the performance of the radio link. These are: Transmitter power output. Sensitivity of the receiver.

  • Page 16: Troubleshooting

    Antennas The main types of antenna used in telemetry applications are as follows: Helical End Fed Dipole Yagi 7.4.1 Helical Antenna The helical stub antenna is robust, low cost and physically small. It has a gain less than unity. Range of up to 2Km. 7.4.2 End Fed Dipole The end fed dipole antenna has a unity gain.
  • Page 17 HELP LINE NUMBER 01455 233616 WARNING Warwick Wireless Limited reserve the right to change the design or specification of the X7200 Radio Modem without notification. In addition Warwick Wireless Limited take no responsibility for the installation and operation of the radio modem.

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X7200hp

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