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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 StarTech NM9MF is a passive DB9 serial null modem adapter designed to facilitate direct serial communication between two devices. This adapter is essential for connecting serial equipment, such as older industrial controllers, diagnostic tools, or specific network devices, that require a crossover (null modem) connection. It effectively swaps the transmit and receive lines, allowing two DTE (Data Terminal Equipment) devices to communicate as if one were a DCE (Data Communications Equipment). The NM9MF model features a male connector on one end and a female connector on the other, providing flexibility for various cable configurations. Its compact form factor and passive design mean no external power is required, simplifying deployment in environments where space or power availability is limited.
This null modem adapter is compatible with any serial device utilizing a standard DB9 port. It is commonly used to connect:
The NM9MF adapter requires no drivers or software installation. Simply connect the male DB9 connector to the female DB9 port on one serial cable and the female DB9 connector to the male DB9 port on the other serial cable. Ensure the connected devices are configured for serial communication and that the baud rate, parity, and stop bits match.
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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