RF RS-232/485/422 UT
Contents
1. BOTEK RF RS 232 485 422 UT 901 User manual A Summary RF transceiver developed by self owned R amp D power Industrial grade MODBUS ASCII protocol supported P2P Point to Multi P working mode high grade protection for interference signal easy to use highly reliability with very reasonable price UT 901 widely applicable for industrial automation process control central monitor station Water Conservancy warehouse surveillance petrol field monitor mine machinery stage equip Power distribution railway access car parking etc Who needs remote acquire data and proceed application UT 901 comply with standard RS 232 422 485 Convert RF signal to balance differential RS 232 or RS 485 422 with built in Transient Voltage Surging protection TVS Highly reliable in suppress lightning 600W protection for each line for surging and lightning RS 232 side as Db9 male RS 422 485 side as binding post Zero delay auto transmission delicate auto control data stream I O without RTS DTR needed jump wire setup as well Plug and plug compilable to common software UT 901 working mode point to point point to multi point Load capacity 128 RS422 485 devices Baud rate 1200 38400KBPS Data traffic indicator B Specification 1 Frequency 433MHz SIM standard 16 channel 2 Interface RS 232 RS 485 RS 422 3 Port RS 232 side as Db9 male RS 485 422 as post RF side as SMA 4 Protection 600W lightning amp surging protection f2. RF to RS 422 1 RS 422 Point to point RS 422 machine RF to RS 485 1 RS 485 P2P RS 485 machine 2 RS 485 point to multi point 3 RS 485 machine UT 901 to RS 232 UT 901 RS 232 machine F Debug 1 Communication failure A Check RS 232 connection B Check RS 485 RS 422 coonection C Check power supply D Check connection pin wire E Does TXD light is blinking F Does RXD light is blinking G Does antenna is fixed properly Data loss or error A Make sure the baud rate format is matching each other 5
3. or RS 485 422 5 Voltage range 9 30VDC 6 7 Power supply 9V400mA Baudrate 1200 bps 2400 bps 4800 bps 9600 bps 19200bps 38400bps 8 Working mode transceiver asynchronous half duplex 9 Indicator PWR TXD RXD 10 Antenna resisstor 50Q 360 rotateable 90 fold SMA 11 Delicated RF transceiver chip 40mW 150mW 405mW 520mW 12 Temperature 40 C 80 C 13 Humidity 10 90 RH 14 Size 97mmx65mmx 26mm w o antenna 15 Distance RF433MHz 300M wide space RS 232 5m 1200bps 38400bps RS 485 422 1200m 1200bps 38400bps 16 Power consumption factory set 1 Power 1 2 3 4 mW 520 405 120 40 dbm 21 71 26 07 21 76 16 02 Sensitivity vs baud rate 1200bps 2400bps 4800bps 9600bps 19200bps 38400bps C Pinout definition RS 232 Db9 male PIN RS 232 signal 1 RXD 2 TXD 3 GND null RS 485 RS 422 Post Signal RS 422 RS 485 RS 485 A RS 485 B 3 RXD R A Null 4 RXD R B Null D Installation Connect GND with SMA connect the power supply Auto adapt RS232 RS 485 422 no jump wire needed STP or UTP UT 901 working mode 1 Point to multi point four wire full duplex 2 Point to point 2 wire half duplex 3 Point to point 2 wire half duplex In order to reduce interference a terminal ressistor 120Q 1 4Wcould be added accordingly to properly situation Z Connection
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