Warwick wireless warwick wireless warwick wireless warwick wireless limited limited limited 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.Uk.
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....
1.0 features • operates on international licensed and licence free radio bands. • rf bands: 147mhz to 174mhz vhf 400mhz to 500mhz uhf 868mhz to 920mhz uhf • conforms to etsi 300-220, etsi 300-113, etsi 300-683, mpt1329. • two independently x7200hp radio modems in hot standby. • 17 selectable radio c...
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 min typ...
3.0 interfaces 3.1 communication port 9 way d type connector rs232/rs485 1 alarm contact output 6 alarm contact output 2 rs232 rd receive data input 7 -ve rs485 input/output 3 rs232 td transmit data output 8 ctsi output 4 nu 9 +ve rs485 input/output 5 0v input pin 1 al1 voltage free, normally open c...
3.3 led indicators eight led’s on the front of the modem indicate the following states: transmit data 1 green on when modem 1 is transmitting data. Receive data1 green on when a rf carrier of greater than 0.9uv is detected psu 1 red on when modem 1 power supply is good. Fail 1 red on when a fault is...
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 th...
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 communica...
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 sig...
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. The menu parameters are ch...
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...
7.0 radio transmission 7.1 radio frequency hex rf tx rf rxrf channel channel frequency frequency sw5 sw4 sw3 sw2 sw1 02h 1 440.825 mhz 445.825mhz on on on on off 04h 2 440.850 mhz 445.850mhz on on on off on 06h 3 440.875 mhz 445.875mhz on on on off off 08h 4 440.900 mhz 445.900mhz on on off on on 0a...
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 th...
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 + 44 (0) 1455...
