United States
Q
What is a Cisco compatible XFP CWDM module?
A
A Cisco compatible XFP CWDM module is a hot-swappable optical transceiver that supports coarse wavelength division multiplexing (CWDM) in the 1270–1610 nm range and is fully interoperable with Cisco network equipment.
Q
How does CWDM differ from DWDM in XFP modules?
A
CWDM uses wider channel spacing (20 nm) and lower cost optics for shorter distances up to 80 km, whereas DWDM uses tighter spacing (0.8 nm) for higher channel counts and longer reaches over 100 km.
Q
Which wavelengths are available for Cisco compatible XFP CWDM?
A
Cisco compatible XFP CWDM modules are available in 18 ITU-T G.694.2 standardized channels from 1271 nm to 1611 nm in 20 nm increments.
Q
What is the maximum transmission distance for CWDM XFP modules?
A
Transmission distances up to 80 km are typical for standard CWDM XFP modules over single-mode fiber, depending on channel wavelength and link budget.
Q
Is the Cisco compatible XFP CWDM module hot-swappable?
A
Yes, XFP CWDM modules are hot-swappable and support plug-and-play installation without powering down the network device.
Q
How do I install a Cisco compatible XFP CWDM module?
A
Insert the module into the XFP port, secure the latch, connect single-mode fiber, then verify link status via the device’s interface LEDs or CLI.
Q
Which fiber type is required for Cisco XFP CWDM modules?
A
Single-mode fiber (SMF) with a 9/125 µm core is required to support CWDM wavelengths and preserve signal integrity across channel multiplexing.
Q
Are Cisco compatible XFP CWDM modules MSA-compliant?
A
Yes, these modules conform to the XFP MSA (Multi-Source Agreement) and ITU-T CWDM standards, ensuring broad interoperability with Cisco devices.
Q
What are the typical use cases for CWDM XFP modules?
A
Common use cases include metropolitan area networks (MANs), campus backbones, and data center interconnects requiring cost-efficient multi-wavelength transport.
Q
How can I troubleshoot link issues with Cisco XFP CWDM?
A
Check fiber polarity, verify module channel configuration, inspect connectors for contamination, and confirm device compatibility via the CLI “show interface” command.
Q
What is the power consumption of a Cisco compatible XFP CWDM module?
A
Typical power consumption ranges from 1.5 W to 2.5 W, depending on wavelength and temperature specifications.
Q
Can I mix Cisco OEM and third-party XFP CWDM modules?
A
Yes, as long as the third-party modules adhere to Cisco’s MSA and CWDM standards, they will interoperate with Cisco OEM modules in the same link.
Q
How do I verify CWDM XFP compatibility with Cisco devices?
A
Use the “show inventory” and “show interfaces transceiver” commands to confirm module recognition, details, and supported wavelength entries.
Q
What are the output power and receiver sensitivity specifications?
A
Output power typically ranges from –3 dBm to +2 dBm, with receiver sensitivity around –23 dBm, meeting ITU-T G.695 requirements for CWDM.
Q
How do I order Cisco compatible XFP CWDM modules?
A
Specify the desired wavelength channel, distance rating, and Cisco compatibility, and reference the part number format: XFP-CWDM18-<wavelength> in your purchase order.
Q
What warranty and support options are available?
A
Most vendors offer a lifetime warranty, 24/7 technical support, and advance replacement services for Cisco compatible XFP CWDM modules.
