Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.
The Black Box IC833A provides a reliable bridge between USB 2.0 and RS485 4-wire serial interfaces. This converter is essential for integrating legacy serial devices, such as industrial controllers, sensors, or older surveillance equipment, with modern computers or systems that only offer USB connectivity. Its terminal block connector ensures a secure and robust physical connection for RS485 wiring, making it suitable for environments where vibration or frequent handling might dislodge standard connectors. The IC833A is designed for applications requiring stable, long-distance serial communication.
This converter is compatible with any system featuring a USB 2.0 port and running Windows operating systems (XP, Vista, 7, 8, 10, 11). It supports standard RS485 4-wire communication protocols, enabling it to interface with a wide range of industrial automation equipment, point-of-sale systems, security devices, and data acquisition hardware that utilize RS485 serial interfaces. It functions as a virtual COM port, allowing standard serial communication software to control and monitor connected RS485 devices.
Installation requires the driver to be loaded on the host computer, which then presents a virtual COM port. The RS485 4-wire terminal block supports standard screw termination for data (A/B) and control (RTS/CTS) lines. Ensure proper termination with a 120-ohm resistor if the converter is at the end of a long RS485 bus to prevent signal reflections. Power is supplied via the USB connection, eliminating the need for an external power adapter. Maximum USB cable length of 5 meters is recommended for optimal performance.
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
Looking for more Black Box products? Shop the full Black Box catalog →
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price
