HPE J9281D - Aruba Transceivers
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J9281D
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J9281D Overview
Aruba 10G SFP+ to SFP+ 1m DAC Cable J9281D
Overview
J9281D Overview
Aruba 10G SFP+ / SFP+ 1m, 1 m, SFP+, SFP+, Black, 10 Gbit/s
Aruba 10G SFP+ to SFP+ 1m DAC Cable
Aruba 10G SFP+ to SFP+ 1m DAC cable
- 1 m
- SFP+
- SFP+
- 10 Gbit/s
- Black
Summary Description
Aruba 10G SFP+ / SFP+ 1m, 1 m, SFP+, SFP+
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Specification
J9281D Specification
Aruba 10G SFP+ to SFP+ 1m DAC Cable
Frequently Asked Questions
What is the primary use case for the Aruba J9281D 10G DAC cable? +
The Aruba J9281D is designed for high-speed, short-reach interconnects within a data center rack or between adjacent cabinets. It provides a cost-effective, low-latency solution for connecting 10G SFP+ ports on switches, servers, and storage area network equipment, effectively replacing expensive optical transceivers for links up to one meter.
Is the Aruba J9281D compatible with third-party SFP+ switches? +
While the J9281D is engineered specifically for Aruba networking hardware, compatibility can vary when connecting to third-party equipment. We recommend verifying your specific switch's transceiver support matrix to ensure seamless connectivity and proper link initialization. For environments with mixed-vendor hardware, our sales team can assist in verifying your specific deployment requirements.
How does the J9281D 10G DAC cable affect power consumption compared to optical modules? +
Direct Attach Copper (DAC) cables like the J9281D significantly reduce power consumption compared to standard SFP+ optical transceivers. Because these cables do not require active laser components at each end, they minimize heat generation and lower the overall energy overhead per port, making them an ideal choice for high-density rack configurations where power efficiency is critical.
What is the maximum distance supported by the J9281D passive cable? +
The J9281D is a 1-meter passive copper twinax cable. Due to the inherent signal attenuation of passive copper media, the maximum reliable distance is limited to the factory-defined length of one meter. For links exceeding this distance, you should consider transitioning to 10GBASE-SR SFP+ optical transceivers and compatible fiber optic cabling.
Do I need to configure any specific software settings on my Aruba switch for the J9281D? +
Generally, the J9281D is a plug-and-play solution. Once inserted, your Aruba switch should automatically detect the cable via the standard I2C interface. In rare instances, if the link does not establish immediately, ensure your firmware is updated to the latest version and check that the specific SFP+ port is enabled in your switch configuration.
What are the physical benefits of using the J9281D DAC for server-to-switch connectivity? +
The J9281D offers a robust, flexible physical design that simplifies cable management within tight rack spaces. Unlike fragile fiber optic patch cords, the twinax construction of this DAC cable is highly resistant to frequent handling and bending, reducing the risk of downtime caused by accidental fiber breakage or signal loss in high-traffic top-of-rack environments.
Does the J9281D support 1G link speeds, or is it strictly 10G? +
The J9281D is specifically optimized for 10Gbps Ethernet throughput. While some SFP+ ports are backward compatible with 1Gbps, the cable's internal signaling is optimized for 10G applications. Attempting to force a 1Gbps link speed may result in unstable connectivity, so we recommend strictly utilizing this cable for 10G-compliant hardware interfaces.
How does the shielding on the J9281D perform in high-EMI environments? +
The J9281D features high-quality twinaxial shielding that provides excellent protection against electromagnetic interference. This ensures data integrity and low bit-error rates, even when cables are bundled together in dense environments or routed near power cables, maintaining the reliable signal path essential for high-performance server farm operations.
Can BuyRouterSwitch.com provide bulk pricing for J9281D cables? +
Yes, we specialize in supporting large-scale infrastructure deployments. If you are planning a data center refresh or require a high volume of J9281D cables, please contact our sales team directly through our website. We provide competitive bulk quotes tailored to your project scale to help you manage your IT budget effectively while securing top-tier hardware.
Why should I choose BuyRouterSwitch.com for my Aruba networking components? +
BuyRouterSwitch.com is a dedicated partner for IT professionals sourcing enterprise-grade networking equipment. We focus on providing authentic, high-quality Aruba hardware with a streamlined procurement process. By choosing us, you benefit from a professional purchasing experience, accurate technical documentation, and a focus on delivering the specific high-performance gear your network architecture requires to remain stable and competitive.
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