Brocade QSFP-40G-PLRL4 Compatible 40G QSFP+ PLR4L Transceiver Module
The QSFP-40G-PLRL4 compatible module serves equipment requiring a 40G QSFP+ interface with 1310nm optics and a 2km rating. Connection is through MTP/MPO-12 Male. Product data, application guidance and factory verification are presented together to support procurement teams match an equipment parts list to a clearly defined optical product.
OEM Part Number: QSFP-40G-PLRL4HT Part Number: QSFP-PLR4L-40G
Product Highlights
- Compatible alternative to Brocade QSFP-40G-PLRL4
- 40G connectivity at 41.2Gbps (4x 10.3Gbps)
- Optical wavelength: 1310nm
- Specified reach: 2km
- MTP/MPO-12 Male / SMF interface
- Operating temperature: 0 to 70°C (32 to 158°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| Brocade Compatible | QSFP-40G-PLRL4 |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-PLR4L-40G |
| Form Factor | QSFP+ |
| Max. Data Rate | 41.2Gbps (4x 10.3Gbps) |
| Wavelength | 1310nm |
| Max. Transmission Distance | 2km |
| Connector | MTP/MPO-12 Male |
| Media | SMF |
| Transimitter Type | DFB CWDM |
| Receiver Type | PIN |
| TX Power | -9.4~0.5dBm |
| Receiver Sensitivity | <-14.4dBm |
| Power Budget | 5dB |
| Receiver Overload | 0.5dBm |
| Max. Power Consumption | ≤2.5W |
| Extinction Ratio | >3.5dB |
| Host FEC | Supported |
| Bit Error Ratio (BER) | 1E-12 |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | 100G PSM4 MSA |
Applications and Optical Link Design
Use this module for equipment interconnection over the specified single-mode fiber plant, including enterprise backbone, campus, metro or data-center interconnect links according to its rated distance. Confirm that both ends use the same optical standard and wavelength plan, and allow for connector, splice and patch-panel loss within the stated power budget.
Before deployment, check the host port type, supported data rate and firmware requirements. The 40G interface configuration must match the remote equipment; sharing a QSFP+ housing alone does not make two transceiver types interoperable.
Before commissioning, measure the complete single-mode channel against the stated budget for 2km. Inspect every MTP/MPO-12 Male connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and optical standard.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -9.4~0.5dBm; receiver sensitivity is <-14.4dBm; the stated optical power budget is 5dB. A sound acceptance record includes link state, diagnostic temperature, supply voltage and transmit or receive levels where the host exposes them. Compare the readings with the stated ranges rather than treating any received light as proof of adequate margin. Persistent alarms or borderline values should trigger an end-face and complete-channel inspection. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.
Procurement and Asset Identification
A useful purchase order identifies the host platform, expected OEM code and optical standard separately. This prevents a module with the same housing but another wavelength, reach or identification profile from being substituted. For mixed deployments, keep one order line per OEM reference and reconcile each received unit with its intended port. For this model, the principal parameters are data rate 41.2Gbps (4x 10.3Gbps), wavelength 1310nm, rated reach 2km.
Brocade Compatibility and Factory Testing
Compatibility testing for QSFP-40G-PLRL4 combines identification with a live link and available transmit, receive and alarm information. Connector condition is inspected separately. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Ordering Information
When ordering, specify QSFP-40G-PLRL4, QSFP-PLR4L-40G, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Quality Assurance and Packaging
Each QSFP-40G-PLRL4 compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. Customer references, rack groups and project packing lists can be added for volume orders.
Frequently Asked Questions
Is this an original Brocade transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-40G-PLRL4, not an original Brocade-branded module.
Which fiber and connector are required?
Use MTP/MPO-12 Male with SMF. The specified maximum reach is 2km, subject to fiber quality and total link loss.
Can it be mixed with another wavelength or reach version?
Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.