waveshare USB to 4-Ch Serial Converter USB to RS232/RS485/RS422/TTL Adapter with Industrial Grade FT4232HL Chip, Supports Linux, Android, Windows 11/10 / 8.1/8 / 7, Onboard Multiple Protection

Industrial USB to 4-ch serial Converter, USB to 1-ch TTL+1-ch TTL/RS485+1-ch isolated RS485/422+1-ch isolated RS232/485 Specifications 1. USB Operating voltage: 5V Connector: USB-B Protection: 200mA self-recovery fuse, isolated output 2. TTL (UART) Operating voltage: 3.3V / 5V Connector: Screw terminal Protection: Clamp protection diode, over-voltage/negative-voltage proof, shockproof Transmission mode: Point-to-point Baud rate: 300 bps ~ 12Mbps 3. RS485/TTL (UART) Operating voltage: RS485: 5V TTL: 3.3V / 5V Connector: Screw terminal Protection: Clamp protection diode, over-voltage/negative-voltage proof, shockproof Transmission mode: Point-to-point Baud rate: 300 bps ~ 12Mbps 4. RS485/422 Connector: Screw terminal Direction control: Hardware automatic control Protection: TVS diode, surge protection & ESD protection (reserve 2x 120R resistors that can be enabled by jumper caps.) Transmission mode: Point-to-multipoints (485 mode: up to 32 nodes, it is recommended to use repeaters for 16 nodes or more； 422 mode: up to 256 nodes, it is recommended to use repeaters for 16 nodes or more.) Baud rate: 300bps ~ 12Mbps 5. RS485/RS232 Connector: Screw terminal Protection: TVS diode, surge protection & ESD protection (120R resistor on the RS485 that can enabled by jumper caps.) Transmission: Point-to-point Baud rate: RS485: 300bps ~ 12Mbps RS232: 300bps ~ 500000bps INDICATOR PWR: Red power indicator, light up when there is a USB connection and voltage is detected. TXD: Green TX indicator, light up when the USB port sends data. RXD: Blue RX indicator, light up when the device ports send data back. ENVIRONMENT REQUIREMENTS Temperature range:-15 ~ 70℃ Humidity range: 5% ~ 95%RH Online Tutorial: n9.cl/4g4x8

• Industrial USB to 4-ch Serial Converter, supports USB to RS232/485/422/TTL, supports USB to 1-ch TTL + 1-ch TTL/RS485 + 1-ch isolated RS485/422 + 1-ch isolated RS232/485. Adopts original FT4232HL chip, fast communicating, stable and reliable, better compatibility.
• Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal. Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption.
• Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection. Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance.
• Fully automatic transceiver circuit with no delay, ensures fast and stable communication between the USB port and different interfaces, without interfering with each other.
• Onboard TTL serial 3.3V/5V voltage translator, config the TTL level via switch. 9 LEDs for indicating the power and transceiver status. Supports Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7, etc.