WARWICK WIRELESS LIMITED X7220 DUAL REDUNDANT BASE STATION 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.
INDEX 1.0 FEATURES 2.0 SPECIFICATION 3.0 INTERFACES 3.1 Communications Port 9 Way D Connector 3.2 Service Port 9 Way D Connector 3.3 LED Indicators 3.4 Fuses 3.5 Program Switch 3.6 Alarm Reset Switch 3.7 Antenna Connectors 3.8 Power supplies 4.0 OPERATION 5.0 GETTING STARTED 5.1 Basic Connections 5.2 Power Connections 5.3 Plug and Play 6.0 CONFIGURATION 6.1 Communication Port Menu 6.2 Service Port Menu 7.0 RADIO TRANSMISSION 7.1 Radio Frequency 7.3 Radio Propagation 7.4 Antennas 8.
1.0 FEATURES • Operates on international licensed and licence free radio bands. • RF Bands: • Conforms to ETSI 300-220, ETSI 300-113, ETSI 300-683, MPT1329. • Two Independently X7200HP Radio Modems in hot standby. • 17 selectable radio channels. • RF Power 1W and 5W • RS232/RS485 serial Interface with baud rates of 1,200 to 38,400. • Service and monitoring RS232/RS485 serial port. • Remote monitoring and configuration of outstation modems. • Addressable individually and globally.
2.0 SPECIFICATION ABSOLUTE MAXIMUM RATINGS Storage Temperature ......................................... -30 to +85 Celsius Operating Temperature ...................................... -10 to +55 Celsius DIMENSIONS X7220HP UHF 1- 5W ................ 1U 19 Inch rack ELECTRICAL CHARACTERISTICS Frequency Range Channels Channel Separation Start up Time Modulation Power Supply MIN 458.500 400.000 147.000 12.5 5.0 12 TYPICAL 17 25.0 10.0 F3D, F1D 24 MAX 458.950 480.000 174.
3.0 INTERFACES 3.1 Communication Port 9 Way D Type Connector RS232/RS485 1 6 2 7 3 8 4 9 5 PIN 1 AL1 PIN 2 RD PIN 3 TD PIN 4 NU PIN 5 OV PIN 6 AL2 PIN 7 –VE PIN 8 CTS PIN 9 +VE ALARM CONTACT ALARM CONTACT RS232 RD RECEIVE DATA -VE RS485 RS232 TD TRANSMIT DATA CTSI NU +VE RS485 0V OUTPUT OUTPUT INPUT INPUT/OUTPUT OUTPUT OUTPUT INPUT/OUTPUT INPUT Voltage free, normally open contact RS232 Receive serial data from host RS232 Transmit serial data to host. Not Used 0V common for host.
3.3 LED Indicators Eight LED’s on the front of the modem indicate the following states: Transmit Data 1 Receive Data1 PSU 1 Fail 1 Green Green Red Red On when modem 1 is transmitting data. On when a RF carrier of greater than 0.9uV is detected On when Modem 1 power supply is good. On when a fault is detected in Modem 1 Data 2 Receive Data 2 PSU 2 Fail 2 Green Green Red Red On when modem 2 is transmitting data. On when a RF carrier of greater than 0.9uV is detected On when Modem 2 power supply is good.
not then the data is stored in the buffer until the channel becomes free. If it is free then a preamble message will be transmitted so that the receiving modems can align to the incoming data. The modem will then transmit a repeater command byte, if set, and a transmitter address byte followed by the data that has been placed in the buffer memory. The transmission is terminated when a gap of two data bytes is detected in the incoming data stream.
If a second PC is not available simply power up the second modem. Configure the modem connected to the PC in the repeater mode with the address mode switched off. This will command the distant modem to repeat back the characters sent to it. 6.0 CONFIGURATION 6.1 Communication Port Menu The Communication Port Menu is displayed by connecting a PC configured at the Baud Rate set previously (Factory set at 9600).
Parity Enable Parity Odd/Even Odd, Even or No Parity can be selected . RF Channel On of 17 RF Frequency can be selected. Key Transmitter The transmitter carrier can be switched on. A distant modem can them use the RSSI bar graph to check the signal strength. RSSI Displays a Bar Graph of Relative Signal Strength. Txmitter Speed Sets the transmission speed: Address Mode Enables Modem Address. This can be used in with the ATT Instruction to pass data to specific modems.
6.2 Service Port Menue The Service Port Menu is displayed by connecting a PC configured at the Baud Rate set previously (Factory set at 9600) and pressing the $ Key followed by the Esc Key. Note that the monitor and control unit will not operate when the menu is displayed. Warwick Wireless Ltd X7200-2 Radio Modem V1.
Address Mode Not used TX Address Not used RX Address Not used Restore Defaults Set Factory Defaults. Exit without Save Return to Modem Advanced Menu Return to Main Menu Display Main Menu by pressing the left Arrow Key Enable AT Instructions Not used TX Priority Not used Mode of Operation Selects one of the following: Duty Cycle Selects the time in hours for each modem to be operational.
7.0 RADIO TRANSMISSION 7.1 Radio Frequency Hex Channel 02H 04H 06H 08H 0AH 0CH 0EH 10H 12H 14H 16H 18H 1AH 1CH 1EH 20H 22H 7.2. RF Channel 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Tx RF Frequency 440.825 MHZ 440.850 MHZ 440.875 MHZ 440.900 MHZ 440.925 MHZ 440.950 MHZ 440.975 MHZ 440.000 MHZ 440.025 MHZ 440.050 MHZ 440.075 MHZ 440.100 MHZ 440.125 MHZ 440.150 MHZ 440.175 MHZ 440.200 MHZ 440.225 MHZ RxRF Frequency 445.825MHz 445.850MHz 445.875MHz 445.900MHz 445.925MHz 445.950MHz 445.975MHz 446.
7.3 Radio Propagation When installing a X7220 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. Height of transmitter and receiver antenna. Length and type of the coaxial feeder cables to the antenna. These should be low loss RU67 type and kept as short as possible. As a rule of thumb the RF power is halved every 10m of antenna feeder.
8.4 Radio Path The radio path can be tested by configuring the transmitting modem to the Repeater Mode. Exit the configuration menu and transmit a character from the dumb terminal This will be echoed back from the distant modem if there is a good transmission path. 8.5 HELP LINE NUMBER 9.0 WARNING + 44 (0) 1455 233616 Warwick Wireless Limited reserve the right to change the design or specification of the X7220 Radio Modem without notification.