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 TL421-C is a 4-port RS-232 passive splitter designed for rackmount installations. It allows a single RS-232 serial port to connect to multiple serial devices simultaneously. This unit is ideal for scenarios where you need to duplicate serial data streams, such as sending commands to multiple controllers, logging data to several recorders, or distributing serial information across a network infrastructure without requiring active signal regeneration. Its passive nature means it requires no external power, simplifying deployment in dense rack environments.
This splitter is compatible with any RS-232 serial device that uses standard DB9 or RJ45 serial interfaces via appropriate cabling. It is designed to work with systems requiring serial data distribution, including industrial automation controllers, point-of-sale systems, network devices with serial consoles, and certain legacy surveillance equipment. It does not actively boost or convert signals, so it is best suited for short-distance applications where signal integrity is maintained.
The TL421-C utilizes RJ45 connectors for its serial outputs, requiring appropriate RJ45-to-DB9 adapters or cables to interface with standard RS-232 equipment. Ensure that the total current draw of connected devices does not exceed the capabilities of the source RS-232 port. As a passive device, it does not require a power supply, but signal integrity is dependent on cable length and quality.
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.
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