TTL-RS485 moodul 3.3/5V juhtmega

(1) power supply (3.0V ~ 30V), the limit voltage of 33V, it is recommended to use within 30V, the minimum voltage is higher than 2.8V.
(2) compatible with 3.3V and 5.0V signals, can match the module
(3) has a very high EMC and EMI performance.
(4) the use of imported chips, industrial design, anti-interference ability, while the use of powerful 485 design, industrial and field can be used in harsh environments, the working temperature of -40 ° to +85 °, transmission Distance up to kilometers (with 850 meters of 2 * 1.5 cable to do the test, it is recommended to use within 800 meters, more than 800 meters plus repeaters)
(5) with a terminal block and silicone wire, the use of very convenient.
(6) with RXD, TXD signal indicator, send and receive situation panoramic view.