Black Box EYN257T-0010-FF RS-232 Shielded Null Modem Cable - DB9 Female/Female - 10 ft - 3. 0 m - Gray PVC
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Product Features
Technical Overview
This cable adheres to RS-232 serial communication standards, supporting data transfer between devices with female DB9 ports. The 9-pin connectors provide compatibility with a wide range of serial interfaces, while the null modem wiring scheme correctly routes signals for direct device-to-device communication. The shielding layer minimizes external noise, ensuring clear data transmission even in electrically noisy environments.
The 10 ft length balances reach with minimal signal attenuation, suitable for most rack, desk, or equipment cabinet installations. The PVC jacket offers durability and flexibility, resisting abrasion and environmental wear. The cable is environmentally friendly, reflecting a commitment to sustainable manufacturing practices without compromising performance.
Relevant factors for this section include Cable Length, Connector Type on First End, Connector on First End Details, Product Color. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This cable combines precise engineering with practical durability to meet the needs of IT professionals and system integrators. Its shielded design and null modem configuration address common challenges in serial connectivity, providing a reliable link for critical data transfer tasks.
Enhanced Signal Integrity
Full shielding protects against EMI and RF interference, ensuring stable data transmission in environments with electrical noise from motors, power lines, or other equipment.
- Reduces data errors
- Maintains connection quality
- Suitable for industrial settings
Direct Device Connectivity
The null modem wiring allows two DTE devices to communicate directly without a modem or additional hardware, simplifying setup and reducing points of failure.
- Eliminates need for modems
- Streamlines serial connections
- Compatible with standard RS-232 ports
Durable Construction
The gray PVC jacket provides flexibility and resistance to wear, while the metal hoods on connectors offer added protection and secure mating.
- Long-lasting material
- Resists abrasion and kinks
- Secure connector engagement
Deployment / Use Cases
This cable is ideal for scenarios requiring reliable serial communication between devices with female DB9 ports. Its null modem design makes it particularly useful for direct connections where modems are not present or needed, supporting a variety of professional and legacy applications.
Common use cases include connecting computers to network equipment like routers or switches for console management, linking industrial control systems to monitoring devices, or interfacing with laboratory instruments that use RS-232 serial output. The 10 ft length accommodates typical distances in server racks, workbenches, or equipment rooms, while the shielding ensures performance in electrically active environments such as manufacturing floors or data centers.
Highlights
- DB9 female connectors on both ends for direct RS-232 serial connections
- Null modem wiring enables communication between two DTE devices without a modem
- 10 ft (3.0 m) length provides flexibility in setup and cable routing
- Full shielding protects against EMI and RF interference for reliable data transfer
- Gray PVC jacket offers durability and resistance to environmental wear
- Environmentally friendly construction supports sustainable IT practices
- Lifetime warranty ensures long-term reliability and peace of mind
- Compatible with a wide range of serial devices including computers, printers, and industrial equipment
Specifications
| Specifications | |
|---|---|
| Manufacturer | Black Box Corporation |
| Manufacturer Part Number | EYN257T-0010-FF |
| Brand Name | Black Box |
| Product Name | RS-232 Shielded Null Modem Cable - Metal Hoods DB9 Female/Female, 10-ft. (3.0-m) |
| Product Type | Data Transfer Cable |
| Technical Information | |
| Cable Length | 10 ft |
| Connector Type on First End | DB-9 RS-232 Serial - Female |
| Connector on First End Details | 1 x 9-pin DB-9 RS-232 Serial - Female |
| Connector Type on Second End | DB-9 RS-232 Serial - Female |
| Connector on Second End Details | 1 x 9-pin DB-9 RS-232 Serial - Female |
| Shielding | Yes |
| Features | EMI/RF Protection |
| Physical Characteristics | |
| Product Color | Gray |
| Jacket Material | Polyvinyl Chloride (PVC) |
| Miscellaneous | |
| Environmentally Friendly | Yes |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What is a null modem cable and when should I use it?
A null modem cable is a serial cable with crossed transmit and receive lines, allowing two DTE (Data Terminal Equipment) devices like computers or routers to communicate directly without a modem. You should use it when connecting devices that both have female DB9 RS-232 ports and require direct serial communication, such as for console management of network gear or data transfer between legacy systems.
What does the shielding on this cable provide?
The shielding protects against electromagnetic interference (EMI) and radio frequency (RF) signals, which can disrupt data transmission. This ensures clear and reliable serial communication in environments with electrical noise, such as near motors, power supplies, or other electronic equipment, reducing errors and maintaining connection stability.
What devices are compatible with this DB9 female/female cable?
This cable is compatible with any device featuring a female DB9 RS-232 serial port, including computers, routers, switches, printers, industrial controllers, and scientific instruments. It supports standard RS-232 signaling for data transfer, making it suitable for IT, automation, and lab applications that rely on serial interfaces.
How does the 10 ft length impact performance?
The 10 ft (3.0 m) length provides adequate reach for most setups, such as between equipment in a rack or on a desk, without significant signal degradation. RS-232 cables can typically run up to 50 ft at standard speeds, so this length ensures reliable performance while offering flexibility in cable routing and device placement.
What is the warranty coverage for this cable?
This cable comes with a lifetime limited warranty from Black Box, covering defects in materials and workmanship for the product's lifespan. This warranty reflects the durable construction and reliability of the cable, providing long-term assurance for professional deployments.
Is this cable environmentally friendly?
Yes, this cable is environmentally friendly, incorporating sustainable manufacturing practices. The PVC jacket and other materials are designed to minimize environmental impact, aligning with green IT initiatives while maintaining the performance and durability required for professional use.
