Url101b, การแยกแม่เหล็กความเร็วสูง , RS485 Signal Repeater ( แอมพลิฟายเออร์ )

1.Description:
The powered RS485 repeater with isolation is one professional RS485 communication product which designed for long distance RS485 communication on RS485 bus.  Normally, the RS485 signal only can touch 100M to 1200M distance from controller. If more than the distance, the equipment will out of control.   The RS485 repeater can prolong 300-1500M transmission distance and add 256 pieces RS485 points on the RS485 bus.

2.  Connection:
(1) The RS485 communication within access control, PLC, RFID is half-duplex communication with data feed back.  If the repeater is used with within this kind of system, there isn't any limitation with input and output side.  Any side can be used as input port or output port.   But as one result of testment, the singal output is more strong on the side with PSU input port.

(2)  For our RS485 repeater/amplifier support two way communicatino, in order to make the RS485 communication better, we using switch to setup different baud rate as followed:
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3.Specifications:
EIA RS-485 communication standard;  RS485 signal: A+. B-;
Working way: Asynchronous transmission, point to point, point to mult-point, half-duplex communication;
Transmission cable: Twisted cable or shielded cable. We suggest to select the shielded cable or professional communication cable.
Protocol: Transparent protocol communication, no protocol limitation;
Baud rate: 300~57600bps;
Address: Transparent communication, no address setup limitation, the same as input address;
Direction control: Auto judge the RS485 singla direction, auto control the signal transmission distance;
Transmission distance: 1500M at most;
Protection: 1500W anti-surge, 15KV ESD protection, 2500V communication isolation;  Anti-thunder;
Working circustance: temperature: 0ºC~60ºC; humidity: 5%~95%;
Voltage: DC9V~18V wide input DC current input;
Power: static state: 40mA; dynamic state: 60mA;
Size: 82*50*32mm;
Net weight: 68g;
Shell: Plastic shell ;