Multi-1/USB all-ISO is a serial communication adapter that makes it easy and fast to add a serial communication port to a system via USB. It supports USB Full-Speed and serial communication speeds up to 921.6Kbps, along with a ±30kV surge protector and ±3kV isolation, delivering excellent compatibility and stability. The LED indicators for serial communication status complement the clean design while also serving as a useful debugging aid. Multi-1/USB-ISO is an all-in-one model that supports RS232, RS422, and RS485 communication interfaces, and can be used in a wide range of applications, including R&D, office automation, and factory automation. The interface can be selected easily via a switch on the back, which also allows the termination resistor to be turned on or off and the slew rate to be configured to suit the communication line conditions.
SystemBase USB serial products use a Locking USB Cable with a locking mechanism at the connector that prevents the USB from being accidentally disconnected by external impact. It has excellent compatibility with standard USB connectors and is easy to use. These advantages have made it widely adopted in industrial settings as well.
Multi-1/USB all-ISO provides an Auto Toggling function for RS422/RS485 communication. This feature helps prevent electrical conflicts between output signals when configuring an RS422 multi-drop network or operating on an RS485 network. Since it is implemented in hardware, simply setting the interface mode with the switch causes Auto Toggling to activate automatically for that mode, making it a convenient, hassle-free feature.
Multi-1/USB all-ISO has a Slew Rate Limiting function that suppresses electromagnetic emissions during communication. When Slew Rate Limiting is enabled, the maximum communication speed is limited to 250Kbps, but it prevents and protects against malfunctions in equipment operating in EMI-sensitive environments such as hospitals and research facilities.
Digital isolation is an isolation technology that offers a compact size, high isolation performance, and low power consumption, delivering superior reliability compared with conventional optical isolation methods. This feature electrically isolates the input and output signals, protecting the device from external noise or strong electrical disturbances caused by nearby motors, actuators, or other equipment.
| Specifications | USB Specification Rev 2.0, High-Speed |
| Number of Ports | 1 |
| Interface | RS232 / RS422 / RS485 |
| Maximum Communication Speed | 921.6Kbps |
| Signal Lines | RS232: TXD, RXD, RTS, CTS RS422: TXD+, TXD−, RXD+, RXD− RS485: TRXD+, TRXD− |
| Protection | Self-protected against ±30kV electrical surges |
| Flow Control | RTS/CTS, XON/XOFF |
| Signal Conflict Prevention | Auto Toggling |
| Cable Length / Diameter | 1200mm / Φ4.8mm |
| Controller | FT231XQ |
| Board Connector | USB-A Female, DB9 Male |
| Supported OS | Windows 7 or later Windows Server 2008 or later Linux |
| Operating Temperature | -40 to 85℃ |
| Storage Temperature | -40 to 85℃ |
| Humidity | 5–95% non-condensing |
| Certifications | KC |
Click the button below to go to the resource center, where you can download related materials such as manuals, drivers, and utilities.
DownloadMulti-1/USB all-ISO is a serial communication adapter that makes it easy and fast to add a serial communication port to a system via USB. It supports USB Full-Speed and serial communication speeds up to 921.6Kbps, along with a ±30kV surge protector and ±3kV isolation, delivering excellent compatibility and stability. The LED indicators for serial communication status complement the clean design while also serving as a useful debugging aid. Multi-1/USB-ISO is an all-in-one model that supports RS232, RS422, and RS485 communication interfaces, and can be used in a wide range of applications, including R&D, office automation, and factory automation. The interface can be selected easily via a switch on the back, which also allows the termination resistor to be turned on or off and the slew rate to be configured to suit the communication line conditions.
SystemBase USB serial products use a Locking USB Cable with a locking mechanism at the connector that prevents the USB from being accidentally disconnected by external impact. It has excellent compatibility with standard USB connectors and is easy to use. These advantages have made it widely adopted in industrial settings as well.
Multi-1/USB all-ISO provides an Auto Toggling function for RS422/RS485 communication. This feature helps prevent electrical conflicts between output signals when configuring an RS422 multi-drop network or operating on an RS485 network. Since it is implemented in hardware, simply setting the interface mode with the switch causes Auto Toggling to activate automatically for that mode, making it a convenient, hassle-free feature.
Multi-1/USB all-ISO has a Slew Rate Limiting function that suppresses electromagnetic emissions during communication. When Slew Rate Limiting is enabled, the maximum communication speed is limited to 250Kbps, but it prevents and protects against malfunctions in equipment operating in EMI-sensitive environments such as hospitals and research facilities.
Digital isolation is an isolation technology that offers a compact size, high isolation performance, and low power consumption, delivering superior reliability compared with conventional optical isolation methods. This feature electrically isolates the input and output signals, protecting the device from external noise or strong electrical disturbances caused by nearby motors, actuators, or other equipment.
| Specifications | USB Specification Rev 2.0, High-Speed |
| Number of Ports | 1 |
| Interface | RS232 / RS422 / RS485 |
| Maximum Communication Speed | 921.6Kbps |
| Signal Lines | RS232: TXD, RXD, RTS, CTS RS422: TXD+, TXD−, RXD+, RXD− RS485: TRXD+, TRXD− |
| Protection | Self-protected against ±30kV electrical surges |
| Flow Control | RTS/CTS, XON/XOFF |
| Signal Conflict Prevention | Auto Toggling |
| Cable Length / Diameter | 1200mm / Φ4.8mm |
| Controller | FT231XQ |
| Board Connector | USB-A Female, DB9 Male |
| Supported OS | Windows 7 or later Windows Server 2008 or later Linux |
| Operating Temperature | -40 to 85℃ |
| Storage Temperature | -40 to 85℃ |
| Humidity | 5–95% non-condensing |
| Certifications | KC |
Click the button below to go to the resource center, where you can download related materials such as manuals, drivers, and utilities.
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