5PCS x UART Serial Port to RS485 Converter Stable Function RS485 to TTL Module
Highlights:
(1) 5.0V power supply.
 
(2) Absolute using imported chips, industrial design, anti-interference ability, while using more effective mine design can be used in the industrial field and harsh field environments, the working temperature of -40 ℃ to + 85 ℃ transmission distance up to 1 kilometer (made with 850 meters of cable F1.5 tests recommended in the 800 meters, more than 800 m, please add repeaters).
(3) Semi-hole pads, onboard module, thin PCB, having a thickness of 0.8mm.
(4) Has RXD, TXD signal indicator light, monitor send and receive status.
 
Features:
(1) The module is fully considered mine design, long-distance transmission signal 485 in the wild, the module "Connected to the ground" terminal is connected to the earth, can play a very good anti-jamming and anti-lightning effect, more secure; it can not connect with the ground when the indoor short-distance transmission.
(2) Using the standard 2.54 pitch design, easy secondary development.
(3) Has a 120 ohm termination resistors, shorted R0to enable the termination resistor.
(4) Support multi-machine communication, allowing access at up to 128 devices on the bus
(5) The module can be hot swapped, the signal does not appear dead phenomenon.
(6) A large area of copper to prevent interference.
 
Package Included:
1 x UART Serial Port to RS485 Converter Function Module RS485 to TTL Stable Module

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Am 02.09.19 hat der Verkäufer die folgenden Angaben hinzugefügt:

DataCaciques