StarTech.com SCNM9FF 10 Inch RS232 Serial Null Modem Cable, Null Modem Cable, DB-9
STARTECH.COM (0758399136342 / SCNM9FF) - Cable length: 3 m - Package depth: 225 mm - Package Height: 0.0700 mm - Package width: 125 mm - RS-232 - Female/Female
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Product Overview
The StarTech.com SCNM9FF 10 Inch RS232 Serial Null Modem Cable is a high‑quality DB-9 Female/Female cable designed for serial communication between two devices that require a null modem configuration. This cable features a standard RS‑232 interface, ensuring reliable data transfer across a wide range of industrial and networking equipment.
Key Technical Specifications
- Connector Type: D-Sub de 9 espigas (DB-9) – hembra on both ends
- Cable Length: 3 meters (approximately 10 feet)
- Color: Gray (Gris / Grigio)
- Package Dimensions: Width: 125 mm, Depth: 225 mm, Height: 0.0700 mm
- Connector Gender: Female/Female (Hembra/Hembra)
- Quantity per Package: 1 piece
Design and Construction
The cable is engineered with a robust shielded twisted pair construction that minimizes electromagnetic interference, making it suitable for use in environments with high electrical noise. The connectors are precision‑machined to ensure a secure fit and long‑term reliability. Each pin on the DB-9 connector is carefully aligned to match the RS‑232 standard, providing accurate signal routing for data, clock, and control lines.
Functional Applications
This null modem cable is ideal for:
- Serial Device Interfacing: Connecting two serial ports on computers or networking equipment that lack a built‑in null modem.
- Industrial Automation: Linking PLCs, SCADA systems, and other control devices that communicate via RS‑232.
- Legacy System Integration: Bridging older serial peripherals with modern hardware for data migration or backup purposes.
- Testing & Troubleshooting: Providing a reliable link for diagnostic tools and software that require direct serial communication.
Installation Guide
- Prepare the Devices: Ensure both devices have available DB-9 female ports. If necessary, use adapter cables to convert from other port types.
- Connect the Cable: Insert one end of the SCNM9FF cable into the first device’s DB-9 port and the other end into the second device’s DB-9 port.
- Verify Connections: Check that all pins are securely seated. A loose connection can cause data corruption.
- Configure Serial Settings: Set matching baud rate, parity, stop bits, and flow control on both devices to establish a stable link.
Performance Highlights
The cable’s 3‑meter length offers flexibility in positioning while maintaining signal integrity. The shielded design reduces crosstalk, ensuring that high‑speed data streams remain clear and error‑free. Its durable construction allows for repeated use without degradation of performance.
Compatibility Matrix
| Device Type | Port Requirement |
|---|---|
| PC/Server Serial Port | DB-9 Female |
| Industrial PLC | RS‑232 DB-9 Female |
| Network Switch Console | Serial Console (DB-9) |
| Legacy Modem | DB-9 Female |
Maintenance Tips
- Store the cable in a cool, dry environment to prevent moisture damage.
- Avoid bending the cable sharply; maintain a gentle curve to preserve internal wiring.
- Inspect connectors periodically for signs of wear or corrosion and clean with an appropriate contact cleaner if necessary.
Conclusion
The StarTech.com SCNM9FF 10 Inch RS232 Serial Null Modem Cable delivers dependable, high‑quality serial connectivity in a compact, gray package. Its precise DB-9 female/female design, shielded construction, and versatile length make it an essential component for any professional requiring reliable RS‑232 communication between two devices.
| This product in Comparor | |
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Category
This product is cataloged in our store in these categories
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- Serial port cables |
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International
Find this product in one of our international stores
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 111.00 EUR   |
| Colors
Predominant colors of the product |
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| Tags | Null Modem Cable Modem cable Inch RS232 Serial |
| Identifiers | |
| Brand | STARTECH.COM Startech.com is a brand that specializes in computer and electronic accessories. They offer a wide range of products, including adapters, cables, storage solutions, and more. |
| Model | STARTECH.COM SCNM9FF |
| MPN | STARTECH.COM SCNM9FF |
| ID | 4927712 |
| Dimensions / Weight | |
| Key Features | |
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Cable length The linear distance that a cable covers, expressed with a length unit such as meters, centimeters or inches. It represents the total usable length of the cable for connecting devices.
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3 m |
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Connector 1 The physical interface or port located at the first end of a cable or device, such as USB‑A, HDMI, RJ‑45, DisplayPort, Lightning, or other standard connectors. It identifies the shape, pin count and electrical characteristics that determine compatibility with cables, adapters or other components.
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RS-232 |
| Connector gender | Female/Female |
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Package depth The linear measurement from front to back or top to bottom of a product’s packaging, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the packaged item is and can be used for fitting, compatibility, or spatial planning.
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225 mm |
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Package Height The vertical dimension of a product’s packaging measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and helps customers assess how tall the package will be when stored or shipped.
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0.0700 mm |
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Package width The horizontal measurement of a product’s packaging, expressed in a linear unit such as millimetres or inches. It indicates how wide the package is from one side to the other and helps customers assess fit for storage, shipping, or display.
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125 mm |
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