United States
Q
What are network modules and network cards?
A
Network modules are pluggable interface components for switches and routers, while network cards (NICs) are adapters that install in servers or workstations to provide network connectivity.
Q
What types of network modules and cards are available?
A
Common types include copper RJ-45, SFP/SFP+, QSFP/QSFP28, 10G/25G/40G/100G modules, PoE blades, and PCIe/PCI network interface cards for servers and PCs.
Q
How do I choose the right network module or card?
A
Select based on your device’s slot type, required bandwidth, media type (fiber or copper), port density, and vendor compatibility to ensure optimal performance.
Q
Are network modules and cards hot-swappable?
A
Most modern SFP, SFP+, QSFP and PoE modules support hot-swap in compatible chassis or switches, but PCIe NICs generally require a system reboot for safe installation.
Q
How do I install a network module or network card?
A
Power down the device if required, insert the module into the designated port or slot until it clicks, secure any ejector levers, then power on and verify detection.
Q
What interface speeds and standards do network modules support?
A
Modules support standards from 1 GbE, 10 GbE, 25 GbE, 40 GbE to 100 GbE, adhering to IEEE 802.x protocols and industry specifications for each speed tier.
Q
Are network modules and cards compatible with all devices?
A
Compatibility depends on vendor, chassis or motherboard slot type, firmware version, and supported interface standards. Always verify with the manufacturer’s compatibility matrix.
Q
What is the difference between SFP, SFP+ and QSFP modules?
A
SFP supports up to 1 Gbps, SFP+ up to 10 Gbps, and QSFP/QSFP28 handle 40 Gbps or 100 Gbps, with QSFP28 offering higher density and bandwidth aggregation.
Q
Should I choose fiber or copper network modules?
A
Use copper (RJ-45) for distances under 100 meters at 1–10 GbE; choose fiber modules (single-mode or multi-mode) for longer distances and higher data rates.
Q
Can network cards improve my network performance?
A
Upgrading to higher-speed NICs or offload-capable cards (e.g., TOE, RDMA) reduces CPU load, lowers latency, and increases throughput for demanding applications.
Q
How do I configure a network module after installation?
A
Access your switch or router CLI/GUI, assign VLANs, enable ports, set speed/duplex, and verify operational status using ‘show interface’ or equivalent commands.
Q
What are PoE network modules used for?
A
PoE modules supply power and data over Ethernet cables to devices like IP phones, access points, and cameras, simplifying installations and centralizing power management.
Q
Are network modules backward compatible with older equipment?
A
Some modules auto-negotiate to lower speeds or legacy standards, but not all. Always confirm backward compatibility in the vendor’s technical documentation.
Q
How do I maintain and troubleshoot network modules and cards?
A
Keep firmware current, inspect connectors for damage or dirt, monitor link LEDs, check logs for errors, and replace faulty modules to restore optimal connectivity.
Q
Where can I purchase certified network modules and cards?
A
Buy from authorized vendors, OEM resellers, or reputable online marketplaces that provide certified, warranty-backed modules compatible with your network hardware.
