RS485 to TTL Module Converter Board Serial Port Level 3.3V 5V

Description:

- The module is fully considered lightning protection design when it serves for long-distance transmission in the wild, the module "Connected to the ground" terminal is connected to the ground, and plays a very good jamming and anti-lightning effect, it can not connect with the ground when the indoor short-distance transmission

- Using the standard 2.54 pitch design, easy to secondary development

- Equiped with a 120 ohm termination resistors, shorted R0 to enable the matching resistor

- Support multi-machine communication, allowing access at up to 128 devices on the bus

- The module can be hot swapped, the signal does not appear dead phenomenon

Specification:

- Overall Demension: 44mm x 16mm / 1.73 x 0.62 Inch

- Compatible with 3.3V and 5.0V power supply.

- Compatible with 3.3V and 5.0V signal.

- Absolute using imported chips; industrial design; anti-interference ability; while using more effective 485 lightning protection 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 using in the 800 meters,when more than 800m please add repeaters).

- Semi-hole process design, thickness 0.8mm, can easily use as a picture board, it can also be welded terminal use.

- RXD, TXD signal indicator lights, monitor send and receive status. Size Chart: 1. Humidity sensor is most sensitive to environmental humidity, generally used to detect the humidity of the surrounding environment. 2. When the environmental humidity exceeds the set threshold, the relay is pulled in and the common end is connected with the usual start. When the ambient humidity is lower than the set threshold, the relay is disconnected and the common terminal is connected to the normally closed terminal. 3. Common end, normally open, normally closed, the 3 ports are equivalent to a double control switch, when the relay coil is power, the common end and common start, without electricity, the common end and the normally closed end.

Package Includes: 1 Piece TTL to RS485 Converter Module