StarTech.com 25 FT DB9 Female to Female Null Modem Cable SCNM9FF25
The StarTech.com SCNM9FF25 25-foot cross-wired DB9 null modem cable provides essential, reliable serial connectivity for IT professionals managing network devices and legacy systems.
- Reliable Connectivity: 25-foot length enables flexible placement of serial devices, ensuring stable data transfer over longer distances.
- EMI Protection: Aluminum Mylar foil shielding minimizes electromagnetic interference, safeguarding critical data integrity in noisy environments.
- Universal Compatibility: Features two DB9 female connectors for broad compatibility with a wide range of serial ports and legacy equipment.
- Lifetime Assurance: Backed by StarTech.com's lifetime warranty, reducing total cost of ownership and ensuring long-term operational reliability.
Product Overview
Product Overview
The StarTech.com SCNM9FF25 is a 25-foot (7.6 meter) cross-wired DB9 null modem cable, purpose-built for direct serial communication between two 9-pin serial ports without requiring a modem. Its female-to-female configuration ensures compatibility with a broad range of DTE devices.
This cable features aluminum Mylar foil shielding to protect against electromagnetic interference, crucial for maintaining data integrity in electrically noisy industrial or office environments. It is RoHS, REACH, and CE certified, meeting critical environmental and safety standards for business deployment.
- Core Functionality: Enables direct serial data transfer between computers or network devices, eliminating the need for complex modem setups.
- Extended Reach: A 7.6-meter (25-foot) cable length provides flexibility in device placement, supporting diverse office and industrial layouts.
- Interference Protection: Aluminum Mylar foil shielding safeguards data signals from EMI/RFI, ensuring consistent and error-free communication.
- Broad Compatibility: Equipped with two DB9 female connectors, ensuring seamless integration with standard 9-pin serial ports on various equipment.
- Operational Value: Backed by a lifetime warranty, this cable offers long-term reliability and reduces the total cost of ownership for essential serial connections.
This null modem cable delivers the reliable, compliant, and cost-effective serial connectivity essential for maintaining critical business operations.
Technical Specifications
1Performance & Business Impact
2Connectivity & I/O
3Physical & Environmental
4Lifecycle, Warranty & Compliance
Full Specifications
Features9
Weight & dimensions1
Certificates1
Packaging data1
Logistics data1
Downloads1
What This Solves
Console Management for Network Devices
Small businesses need direct access to configure and troubleshoot network routers, switches, and firewalls, especially during initial setup or recovery. This cable provides a stable, cross-wired serial connection to device console ports, enabling reliable command-line interface (CLI) management.
IT operations teams, network administrators, small office IT departments
Industrial Equipment Configuration
Growing offices with specialized industrial or laboratory equipment often rely on serial interfaces for configuration, diagnostics, and data logging. This 25-foot cable ensures a secure and interference-free link for programming PLCs, SCADA systems, or medical devices from a central workstation.
Manufacturing facilities, healthcare clinics, research laboratories
Legacy System Data Transfer
Retail locations and other businesses may need to transfer data between older PCs or specialized serial-connected peripherals. This null modem cable facilitates direct, reliable file transfers and communication, supporting essential operations without requiring network connectivity.
Retail POS systems, accounting practices, specialized data collection points
Key Features
7.6 m (25 ft) Cable Length
Provides ample reach for flexible device placement, reducing constraints in office or industrial layouts.
DB9 Female to Female Connectors
Ensures broad compatibility with standard 9-pin serial ports on a wide range of DTE devices and legacy equipment.
Cross-Wired Configuration
Enables direct device-to-device serial communication, simplifying setup by eliminating the need for a modem.
Aluminum Mylar Foil Shielding
Protects data signals from electromagnetic interference, ensuring reliable and error-free transmission in noisy environments.
RoHS, REACH, CE Certification
Guarantees compliance with international environmental and safety standards, simplifying procurement for regulated industries.
Industry Applications
Manufacturing & Industrial
For connecting and configuring PLCs, SCADA systems, and other serial-controlled machinery on the factory floor.
Government & Public Sector
Used for managing legacy network infrastructure and specialized equipment in secure or restricted environments.
Retail & Hospitality
Deployed for connecting point-of-sale (POS) systems, receipt printers, and other serial peripherals in commercial settings.
Healthcare & Life Sciences
Facilitates communication with medical diagnostic equipment and laboratory instruments that rely on serial interfaces.
Frequently Asked Questions
What is the primary use case for a null modem cable?
A null modem cable, like the StarTech.com SCNM9FF25, is primarily used for direct serial communication between two DTE (Data Terminal Equipment) devices, such as two computers or a computer and a network device's console port, without requiring a modem.
Can this cable be used to connect a PC to a network switch for console access?
Yes, this DB9 female to female null modem cable is specifically designed for such applications, allowing IT professionals to connect a PC's serial port directly to the console port of a network switch, router, or firewall for configuration and management.
Does this cable support flow control for data transfer?
The cross-wired configuration of this null modem cable inherently supports hardware flow control (RTS/CTS) by connecting the appropriate pins, ensuring reliable data transfer and preventing buffer overflows between connected devices.
What is the benefit of the aluminum Mylar foil shielding?
The aluminum Mylar foil shielding on the StarTech.com SCNM9FF25 protects the serial data signals from electromagnetic interference (EMI) and radio frequency interference (RFI), which is crucial for maintaining data integrity and connection stability in electrically noisy environments.
Warranty & Returns
Manufacturer Warranty
Lifetime
Warranty is provided directly by the manufacturer and covers defects in materials and workmanship under normal use.
Return Policy
Returns subject to manufacturer approval
Hardware returns are governed by the manufacturer's return policy. Some products are non-returnable or subject to restocking fees. Defective items are handled under the manufacturer warranty. Contact Zent Networks before initiating any return.