RS485 to TTL Converter Module Serial Port UART Hardware Automatic Flow Control Module is based of MAX485 chip, which is one of the most relied on when working with RS485 Bus. This module supports 3.3 V and 5V power supplies, and TTL Levels. It can connect and identify up to 128 nodes on the RS485 bus. This module also supports very long range of the bus.

This RS485 to TTL Converter Module can support up to 800 metre of bus length. It has connections for RX,TX, +ve and GND, on one side, and other side has connection for RS485 bus. It also has the Indicators for the Receive and Transmit Signals. And, the thickness of PCB is 0.8 mm, which enables it to be used as add-on on any of your PCBs or devices.

Features

• 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- effect, more secure; it can not connect with the ground when the indoor short-distance transmission.
• Using the standard 2.54 pitch design, easy secondary development.
• Has a 120 ohm termination resistors, shorted R0to enable the termination 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.
• A large area of copper to prevent interference.
• 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 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).
• Semi-hole pads, onboard module, thin PCB, having a thickness of 0.8mm.
• Has RXD, TXD signal indicator light, monitor send and receive status.
• Note: 
  • Only one in the whole network, 3.3V and 5.0V power supply, RS485 signal perfectly compatible with automatic flow control module.
  • Without “Receiving – launch” control, this module is as simple to use with your serial port operations.

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