United States
Q
What types of cables and adapters does Cisco offer?
A
Cisco offers a full range of copper and fiber optic solutions, including Cat5e/Cat6/Cat6A RJ45 cables, LC/SC/ST fiber cables, Direct Attach Copper (DAC), Active Optical Cables (AOC), and compatible SFP, SFP+, QSFP+ and QSFP28 transceiver modules.
Q
How do I choose the right Cisco cable for my network?
A
Select cables based on required bandwidth, distance and infrastructure. Use DAC for short 10m connections, Cat6A for up to 10G over 100m, AOC for 40–100G beyond 7m, and fiber cables (LC/SC) per transceiver specifications.
Q
What is a Cisco Direct Attach Cable (DAC)?
A
A Cisco Direct Attach Cable (DAC) is a passive twinax copper assembly for short-reach links up to 7m. It delivers low latency and power consumption, making it ideal for data center top-of-rack switch-to-server connections.
Q
What is an Active Optical Cable (AOC) and when should I use it?
A
An Active Optical Cable (AOC) integrates optical transceivers with fiber to support high-speed links (10G–100G) over distances from 10m to 100m. It’s lightweight, EMI-resistant, and ideal for data center and telecom deployments.
Q
How do I determine the correct cable length for my installation?
A
Measure the device-to-device path, add 10% for routing slack, and ensure the length meets Cisco’s maximum distance guidelines per cable type and data rate as outlined in official datasheets.
Q
Which Cisco cables support 10G, 25G, 40G or 100G speeds?
A
Cat6A RJ45 supports up to 10G; DAC and AOC assemblies support 10G/25G/40G/100G with matching transceivers; fiber optic cables paired with appropriate SFP/QSFP modules support corresponding speeds per IEEE standards.
Q
Are Cisco cables compatible with non-Cisco network devices?
A
Yes. Cisco cables and adapters adhere to IEEE and MSA standards, ensuring interoperability with compliant devices from other vendors. Always verify compatibility via the Cisco compatibility matrix.
Q
How can I verify the authenticity of Cisco cables and adapters?
A
Check Cisco part numbers (e.g., CAB-TA-DAC-xxM), serial numbers and holographic logos. Use Cisco’s “Check a Serial Number” tool on the official website to confirm genuine products and warranty coverage.
Q
What is the maximum distance for Cisco fiber optic cables?
A
Distance varies by optics type: multimode OM3/OM4 supports up to 400m at 10G and 150m at 40G; single-mode OS2 supports up to 10km at 10G and 2km at 100G. Always reference Cisco’s datasheets for exact reach.
Q
Can I mix Cat5e and Cat6 cables in a Cisco network?
A
Mixing is possible but performance defaults to the lowest category. For reliable 10G connectivity, use Cat6A or higher and follow Cisco’s cabling guidelines to maintain signal integrity.
Q
How do I install a Cisco SFP or QSFP transceiver module?
A
Power down the port if required, align the module key with the port, insert until it clicks, attach the matching cable, then verify link status via Cisco IOS or device LEDs.
Q
What warranty and support does Cisco provide for cables and adapters?
A
Cisco offers a limited lifetime warranty against defects in materials and workmanship. Technical support is available through Cisco’s Technical Assistance Center (TAC) for configuration, compatibility and troubleshooting.
Q
How do I troubleshoot a faulty Cisco network cable?
A
Check link LEDs, swap with a known-good cable, use a cable tester for continuity, inspect connectors for damage or bent pins, and ensure proper seating. Replace any damaged or non-compliant cable.
Q
Where can I purchase genuine Cisco cables and adapters?
A
Buy from Cisco-authorized partners, resellers or the Cisco Online Store to ensure product authenticity, warranty coverage and access to Cisco support resources.
Q
Do Cisco cables comply with industry standards and certifications?
A
Yes. Cisco cables meet IEEE, TIA/EIA and ISO/IEC standards, along with RoHS, UL and CE certifications. They undergo rigorous testing for signal integrity, EMI immunity and environmental compliance.
Q
How should I maintain and clean Cisco fiber optic connectors?
A
Use alcohol wipes or fiber cleaning tools on end faces before each connection, keep unused connectors capped in dust-free covers, and follow Cisco’s cleaning and inspection procedures to prevent damage and signal loss.
