This module interfaces an Arduino or similar microcomputer to RS-485. RS485 is used for Serial Communications over longer distances than direct RS232 or TTL, and supports multiple units on the same bus (Multi-Drop). Multiple Units can be connected to the same RS-485 wiring. ...
120R SWITCH : The 120R switch is used to determine whether the 120 ohm resistor is accessible or not. 485 needs to add a 120 ohm resistor at the beginning and end of long wiring environments to do the matching and ensure communication. ...
MAX485 TTL To RS485 SchematicFeatures : On-board MAX485 chip, A low power consumption for the RS-485 communication, slew-rate limited transceiver. A low power consumption for the RS-485 communication Onboard then 5.08 (mm) pitch 2P terminal to facilitate RS-485 communication wiring Slew-rate ...
There are also some other protections, such as miswiring protection, tolerance for up to ±42V on RS485 bus lines, etc. RX and TX UART lines from the mikroBUS™ are routed to RXD and TXD pins of the ADM2795E. The CS pin of the mikroBUS™ is routed to the DE pin of the ADM...
Comes with development resources and manual (examples in wiringPi/python) Specifications Operating voltage: 3.3 VDC CAN controller: MCP2515 CAN transceiver: SN65HVD230 485 transceiver: SP3485 Dimension: 65mm x 30mm Mounting hole size: 3.0mm
Termination should only be used with high data rates and long wiring runs. A detailed discussion of termination can be found in Chapter 2 of this application note. The signal ground line is also recommended in an RS-485 system to keep the common mode voltage that the receiver must accept ...
2 GND 5V USB-RS485-PCB Rev 2 Figure 4.1 USB-RS485-PCB Pin Out (Top is TOP View, Bottom is BOTTOM View) The mechanical details of the PCB are shown in the following diagram Figure 4.2 Additional pads were added to the PCB to allow for easier wiring which resulted in a Rev 2 PCB....
Termination should only be used with high data rates and long wiring runs. A detail ed discussion of termination can be found in Chapter 2 of this application note. The si gna 20、l ground line is also recommended in an RS-485 system to keep the common mod e voltage that the receiver ...
long wiring runs. A detailed discussion of terminat ion can be found in Chapter 2 of this application not e. The signal ground line is also recommended in an RS-485 system to keep the common mode voltage that the receiver must accept within the -7 to +12 volt rang e. Further discu...
Moxa ioLogik R1200系列远程I O产品快速安装指南RS-485远程I O版本4.1，P/N: 1802012002014 *1802012002014* ioLogik R1200 Series Quick Installation Guide RS-485 Remote I/O Version 4.1, January 2021 Technical Support Contact Information www.moxa.com/support 2021 Moxa Inc. All rights reserved.