Required inputs
Measured route length, fiber type, connector and splice count, loss record, host ports and operating temperature.
Solution
DCI Edge Interconnect
Data-center interconnect and metro edge links with LR/ER optical evidence requirements.
Review This TopologyDesign constraint
Transmit and receive limits, dispersion or OSNR where applicable, patch loss and restore margin.
Acceptance output
Documented link budget, receive-power window, BER/FEC observation and route-specific spare strategy.
DCI Edge Interconnect
Qualify the real route before comparing FR, LR or ER optics; fiber loss, connector count and operating margin own the decision.
400G QSFP-DD FR4 Optical Transceiver
CompatibleRFQ route
Candidate duplex single-mode module for 400G cloud uplinks and enterprise core links.
Speed400GFormQSFP-DDReach2km class
RFQCompatibility and lead time to be confirmed
400G QSFP-DD LR4 Optical Transceiver
CompatibleRFQ route
Candidate long-reach duplex single-mode module for DCI edge, cloud uplinks and enterprise core upgrades.
Speed400GFormQSFP-DDReach10km class
RFQCompatibility and lead time to be confirmed
400G QSFP-DD ER4 Optical Transceiver
CompatibleRFQ route
Candidate extended-reach 400G QSFP-DD module for long metro or DCI review where dispersion and OSNR must be checked.
Speed400GFormQSFP-DDReach40km class
RFQCompatibility and lead time to be confirmed
800G OSFP LR4 Optical Transceiver
CompatibleRFQ route
Candidate long-reach 800G OSFP module for DCI and edge aggregation where exact supplier datasheet is mandatory.
Speed800GFormOSFPReach10km class
RFQCompatibility and lead time to be confirmed
Plan and validate the route
Transmit and receive limits, dispersion or OSNR where applicable, patch loss and restore margin.
Record endpoints
Measured route length, fiber type, connector and splice count, loss record, host ports and operating temperature.
Test the constraint
Transmit and receive limits, dispersion or OSNR where applicable, patch loss and restore margin.
Prevent the likely failure
Selecting by advertised reach alone can hide excessive insertion loss, receiver overload or unsupported host behavior.
Define acceptance
Documented link budget, receive-power window, BER/FEC observation and route-specific spare strategy.
Product List
Candidate products for this solution path.
| Product | Role | Evidence gate |
|---|---|---|
| 400G QSFP-DD FR4 Optical Transceiver | 400G QSFP-DD FR4 | Datasheet and link budget required |
| 400G QSFP-DD LR4 Optical Transceiver | 400G QSFP-DD LR4 | Source image registered; final proof required |
| 400G QSFP-DD ER4 Optical Transceiver | 400G QSFP-DD ER4 | Dispersion, power and certificate proof required |
| 800G OSFP LR4 Optical Transceiver | 800G OSFP LR4 | Model-specific certificate and datasheet required |
Operations handoff
Selecting by advertised reach alone can hide excessive insertion loss, receiver overload or unsupported host behavior. Keep the acceptance record, exact model, firmware state and replacement route attached to the project.
800G RoCE Lossless Network
Ethernet networking for AI accelerates job completion and optimizes IT resources.
400G DCI Optical Solution
Build 400G DCI routes with model-specific reach and link-budget evidence.
Cloud Switch Upgrade
Migration paths from 100G/200G to 400G/800G with host compatibility review.
High-density Modular Cabling
MTP/MPO trunks, harness and cassette planning for dense optical distribution.
Support
Send host platform, topology and required proof files for review.