100G CFP4 LR4 10km Optical Transceiver
Product Overview
The Apex 100G CFP4 LR4 module is the compact member of the 100G CFP family. It carries the same 100GBASE-LR4 signal to 10km as the CFP2 part, but in a package roughly half the size and with lower power consumption, which is why line card vendors used CFP4 to double the number of 100G client ports in the same faceplate.
For operators this means CFP4 is normally found on newer transport and routing cards, or in slots where a CFP2 module physically will not fit. Reach, wavelength plan and coding are the same as the LR4 standard, so link engineering and fiber records do not change when a card moves from CFP2 to CFP4.
The module is hot pluggable, uses a CAUI-4 (4 x 25G) electrical interface, and reports per lane optical power over DDM. We keep the standard 10km grade available for same day quoting and can supply CFP2 LR4 and ER4 parts alongside for mixed fleets.
Key Features
- 100Gbps line rate compliant with 100GBASE-LR4
- Compact CFP4 package for higher port density per line card
- 4 x 25G LAN-WDM lanes multiplexed into one duplex LC interface
- 10km reach over single mode fiber
- Hot pluggable with CAUI-4 electrical interface
- Digital Diagnostic Monitoring (DDM) with per lane optical readings
- Lower power than the equivalent CFP2 module
- RoHS compliant, coded for your platform before shipment
Technical Specifications
| Specification | Detail |
|---|
| Part Number | APX-CFP4-100G-10KM-LR4 |
| Manufacturer | Apex |
| Data Rate | 100Gbps |
| Form Factor | CFP4, hot pluggable |
| Standard | 100GBASE-LR4 |
| Optical Technology | 4 x 25G LAN-WDM, internally multiplexed |
| Wavelength | 1295.56nm, 1300.05nm, 1304.49nm and 1309.14nm |
| Maximum Reach | 10km over SMF |
| Fiber Type | Single Mode Fiber (SMF) |
| Connector Type | LC duplex |
| Electrical Interface | CAUI-4, 4 x 25G |
| FEC | RS(528,514) forward error correction |
| DDM / DOM | Supported, per lane optical power |
| Compliance | CFP MSA, IEEE 802.3ba, RoHS |
| Temperature | 0 to 70C |
Applications
High Density Transport Line Cards
Lights up to twice as many 100G client ports per card as CFP2, which matters on fully loaded OTN and routing shelves.
Metro and Campus 100G Links
Carries 100G between buildings, exchanges and data halls up to 10km on the installed single mode fiber.
Platform Migration and Spares
Keeps CFP4 equipped cards running where the slot size leaves no room for a CFP2 module.
Compatibility
CFP4 LR4 modules are coded for the line card and platform you name and tested on live ports before shipment. Since CFP4 slots are package specific, we confirm the host model and slot type before quoting, and where a card accepts either CFP2 or CFP4 we supply the version that keeps spares and fibre records consistent across the fleet.
Related Products
Frequently Asked Questions
What is the difference between CFP2 and CFP4?
Both carry 100GBASE-LR4 to 10km. CFP4 is roughly half the size and uses less power, so a line card can offer more 100G ports in the same space.
Will a CFP4 module fit a CFP2 slot?
No. The packages are different sizes and are not interchangeable, so the cage on the line card decides which module is needed.
Is CFP4 still supported?
Yes, on the transport and routing cards that were built for it. Where a platform also offers QSFP28 cages, QSFP28 is usually the cheaper option and CFP4 is kept for cards that require it.
How do you confirm the right coding?
Send the host model and the line card type and we check the coding against that platform. Every module is coded before it ships and tested on live ports where the platform is available.
Why Choose Apex
- Optical engineering support and supply from 1.25G to 800G, including CFP2 and CFP4 100G optics.
- Slot type, line card and coding confirmed before the order is released.
- Every module is tested for optical power, wavelength and error rate before shipment.
- Backed by a 3 year warranty and technical support before and after the sale.
