100G CFP2 ER4 40km Optical Transceiver
Product Overview
The Apex 100G CFP2 ER4 module delivers a 100GBASE-ER4 link to 40km over a single mode fiber pair. Four 25G lanes are transmitted on the LAN-WDM grid around 1310nm and multiplexed inside the module, so the whole 100G signal leaves the host on one duplex LC connector.
CFP2 is the pluggable package used on transport, routing and OTN line cards where a 100G port has to reach well beyond the data centre. At 40km the ER4 design covers metro spans, a link between two central offices, or a customer hand off that is too long for an LR4 port, and it does so without an amplifier or regeneration point.
The module is hot pluggable with a CAUI-4 (4 x 25G) electrical interface, reports temperature, voltage and per lane optical power through the DDM interface, and is coded for the host platform you name. Test reports are kept for every unit, and both the CFP2 and CFP4 versions of the 100G non coherent line are available from the same warehouse.
Key Features
- 100Gbps line rate compliant with 100GBASE-ER4
- Four 25G lanes on the LAN-WDM grid, multiplexed inside the module
- 40km reach over a single mode fiber pair
- CFP2 hot pluggable package with CAUI-4 electrical interface
- Duplex LC optical interface
- Digital Diagnostic Monitoring (DDM) with per lane optical readings
- Coded for the transport or routing platform you name
- RoHS compliant, tested before shipment
Technical Specifications
| Specification | Detail |
|---|
| Part Number | APX-CFP2-100G-40KM-ER4 |
| Manufacturer | Apex |
| Data Rate | 100Gbps |
| Form Factor | CFP2, hot pluggable |
| Standard | 100GBASE-ER4 |
| Optical Technology | 4 x 25G LAN-WDM, internally multiplexed |
| Wavelength | 1304.5nm, 1309.14nm, 1313.73nm and 1317.46nm |
| Maximum Reach | 40km 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
Metro 100G Transport
Links central offices, aggregation sites and regional data centres at 40km on the existing single mode cable without amplifiers.
OTN and Transport Line Cards
Fits CFP2 cages on OTN and DWDM platforms where the client side interface has to reach across a city.
Carrier and Enterprise Hand Off
Provides a 100G customer or peering interface where the span is longer than an LR4 port can cover.
Compatibility
CFP2 ER4 modules are coded for the transport, routing or OTN platform you name and tested on live ports before shipment. Because CFP2 ports appear mainly on carrier equipment, we confirm the host model, the line card and the coding requirement, and we can supply the equivalent CFP4 or QSFP28 part where the platform offers a choice of cages.
Related Products
Frequently Asked Questions
What is the difference between CFP2 ER4 and LR4?
Both carry 100G over four 25G lanes on the LAN-WDM grid. LR4 is specified to 10km and ER4 to 40km, with a higher output power and a more sensitive receiver to close the longer budget.
Is CFP2 still used?
Yes. CFP2 remains common on transport, OTN and routing line cards, and it delivers more optical budget than smaller pluggables in some 40km designs.
Can I use a QSFP28 ER4 instead?
Where the host has a QSFP28 cage, a 100G QSFP28 ER4 module is usually the simpler and cheaper choice. CFP2 is used when the card only provides CFP2 cages.
Do you supply test reports?
Yes. Each unit is tested for optical power, wavelength and error rate, and the results are kept on file against the module serial number.
Why Choose Apex
- Optical engineering support and supply from 1.25G to 800G, including CFP2 and CFP4 100G optics.
- Host platform, 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.
