RS-485/RS-232接口电路的主要作用是实现RS-485电平和RS-232电平之间的转换,如下图: 图1 RS-485/RS-232接口电路 MAX232是RS的驱动芯片,可实现RS-232电平和TTL电平之间的转换。MAX485是RS-485的驱动芯片,可以实现RS-485电平和TTL电平之间的转换。MAX485的参数与SN75176相同。CD4019是2选1数据选择器,因为单片机...
摘要:示意图显示到RS232 RS485转换电路的电路图。 EIA - 485标准,又名TIA/EIA-485或RS - 485,是一种物理层标准,确定电子驱动器和接收器,使用平衡的数字信号,这是能够处理点对多点系统的电气性能。ANSI的电信工业协会/电子工业联盟(TIA / EIA)发布这一标准的组织。 示意图显示到RS232 RS485转换电路的电路图。
The utility model relates to device communication interface converter circuit, particularly to a RS232 and RS485 interface converter circuit with MCU's. 电路包括单片机控制部分,RS232接口部分和RS485接口部分,由单片机C8051F121,RS232电平转换芯片MAX3232EUE,RS485电平转换芯片MAX3483以及外围使用的电阻和电容等...
Integrated level converter on UART and CBUS for interfacing to 5V - 1.8V Logic.True 5V / 3.3V / 2.8V / 1.8V CMOS drive output and TTL input.High I/O pin output drive option.Integrated USB resistors.Integrated power-on-reset circuit.Fully integrated clock - no external crystal, oscillator...
RS232 to RS485 Circuit Schematic Serving as an example, below schematic shows what a typical RS232 to RS485 converter circuitry looks like. Connecting a RS232 to RS485 converter. Okay, so how do you connect a RS232 to RS485 converter? The RS232 to RS485 converter can be used for poin...
Color:TTL to RS485 Product sellpoints Customizable Integrated Circuit:Offers is_customized feature, catering to specific project requirements. Wide Operating Temperature Range:Designed for normal operating temperatures, suitable for various environments. ...
PCB Portable Photosensitive Dry Film for Circuit Production Photoresist Sheets 30cm x 5m For plating hole covering e T T***o 2024年11月19日 Prodotti ok, un po' oleosi ma funzionano. All'inizio sembravano grippati, sbloccano dopo qualche stretta. ...
一种用于串口调试RS232接口转RS485接口的转换器,包括一个转换器壳体,转换器可以内部设置有RS232转RS485的转换电路,在壳体的前端连接一个可以转动的旋转接头,旋转接头上设有A,A′,B,B′四个可以交替导通与转换电路连接的接头,A,A′,B,B′四个接头连接一个带有四孔的插座. An RS232 interface to RS485 seria...
5. Three LED indicators on the board, which is convenient to check the power signal and receiving status.Product parameters:Product type: Industrial -grade USB Transfer RS485/232 ConverterCommunication rate: 50bps ~ 1000000bpsHost interface: USBEquipment interface: RS485/RS232 (switching through ...
2. Unique design, no exposed circuit board. Traditional RS23/485 converter, RS485 this end uses DB9 terminal, this way will expose the circuit board, not only not good looking but also easy to leak, corrosion. ZLAN9223E adopts integral housing, terminal type RS485 connection and flange inst...