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Description

StarTech SCNM925FM Serial/Null Modem Cable

Overview

The StarTech SCNM925FM is a 10-foot serial crossover (null modem) cable designed to directly connect two serial devices without requiring modems. This cable is essential for device-to-device serial communication, such as connecting a computer to a serial printer, a console port on network equipment, or legacy industrial automation hardware. The cross-wiring configuration (often referred to as null modem mode) allows devices that expect to be connected via modems to communicate directly. This specific configuration features a DB9 female connector on one end and a DB25 male connector on the other, providing compatibility with a wide range of serial peripherals and controllers.

Compatibility

This cable is designed for direct serial communication between devices that support RS-232 signaling. It is compatible with any serial port that requires a null modem connection, including but not limited to: industrial control systems, point-of-sale terminals, scientific instruments, and older network switches or routers requiring console access. The DB9 female connector mates with male DB9 ports, while the DB25 male connector mates with female DB25 ports. Ensure your connected devices are configured for serial communication and null modem operation for proper functionality.

Installation Notes

The cable's construction is straightforward: simply connect the DB9 female end to the male DB9 port on one device and the DB25 male end to the female DB25 port on the other. The cable is gray and weighs 5.6 oz (160 g), with dimensions of 2.2 inches (5.5 cm) wide and 0.6 inches (1.6 cm) high. No special tools or drivers are required for installation; it functions as a passive cable. Ensure the physical connectors are securely fastened to prevent accidental disconnection.

What's in the Box

  • 1x StarTech SCNM925FM 10ft Serial/Null Modem Cable
Specifications
Cable Length: 10.0 ft [3.0 m]
Connector A: DB-9 (9 pin, D-Sub)
Connector B: DB-25 (25 pin, D-Sub)
Color: Gray
Weight of Product: 5.6 oz [160.0 g]
Product Height: 0.6 in [1.6 cm]
Product Width: 2.2 in [5.5 cm]
Warranty: Lifetime
Brand: StarTech
MPN: SCNM925FM
Type: Modem
Connectivity: RS-232
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StarTech This 10FT Cross Wired Serial/null Modem - SCNM925FM

$9.21
$4.99

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