Custom 200GBASE-DR4 QSFP56 Module
-
Parallel Single-Mode Routing: Forges reliable mid-reach interconnects for hyperscale Spine-Leaf architectures up to 500 meters.
-
APC Interface Enforcement: Built with an MPO-12 Angled Physical Contact (APC) receptacle to definitively block laser back-reflection.
-
50G Splitting Hub: Functions as a precision high-speed breakout gateway, cleanly fracturing one 200G pipeline into four discrete 50GBASE-DR connections.
-
Uncooled DFB Matrix: Leverages an uncooled Distributed Feedback (DFB) laser array to optimize the optical power budget without demanding heavy thermoelectric cooling.
Product Description
Bridging the physical gap between server rows in mega-scale cloud facilities requires specialized optics. Standard multimode limits out at 100 meters, and long-haul multiplexed modules waste valuable IT budgets on short runs. The Custom 200GBASE-DR4 qsfp56 module resolves this by injecting four 50Gbps PAM4 signals directly into parallel single-mode fiber pairs. Built within WolonFiber's class-100k cleanrooms, this 200g qsfp provides pristine, unamplified 500-meter transmission capabilities tailored precisely for expanding campus-level data centers.
Key Features
-
Return Loss Eradication: 1310nm single-mode transmitters are highly vulnerable to reflective damage. The strict APC polish requirement ensures Return Loss stays deeply suppressed below -60dB.
-
Cost-Proportional Reach: Discards expensive internal WDM components, providing a highly economical single-mode solution for links that do not exceed the 500m threshold.
-
OEM Protocol Assurance: Every 200g transceiver undergoes factory firmware flashing to guarantee immediate acceptance by rigidly locked routing platforms.
Application Scenarios
-
Intermediate single-mode cross-connects (up to 500m) linking adjacent data halls.
-
High-capacity 1x200G to 4x50G breakouts terminating at hyper-dense 50GbE access switches.
Technical Specifications
| Specification | Details | Specification | Details |
| Form Factor | QSFP56 | Vendor Name | WolonFiber |
| Max Data Rate | 212.5Gbps (4x 53.125Gbps) | Modulation | PAM4 |
| Wavelength | 1310nm | Max Cable Distance | 500m |
| Connector | MTP/MPO-12 APC | Media Type | SMF (Single-Mode Fiber) |
| Transmitter | 4-Lane Uncooled DFB | Receiver Type | PIN Array |
| TX Power | -2.9 to 4.0dBm | RX Sensitivity | < -5.9dBm |
| Power Consumption | ≤ 5.5W | Operating Temp | 0 to 70°C (32 to 158°F) |
| Host FEC | KP4 FEC (Required) | Protocols | QSFP56 MSA, IEEE 802.3bs |
Engineering FAQs
-
Q: Can the 200GBASE-DR4 establish a physical link with a 200G FR4 transceiver?
A: No. The DR4 outputs four parallel 1310nm signals across 8 fiber cores (MPO interface). The FR4 multiplexes four distinct wavelengths onto 2 fiber cores (Duplex LC interface). They are optically isolated from one another.
-
Q: Why does the MPO connector require an APC angle?
A: Single-mode DFB lasers suffer catastrophic degradation if reflected photons re-enter the optical cavity. The 8-degree APC polish deflects those reflections harmlessly into the fiber cladding.
-
Q: Is it safe to deploy this module on a 1km fiber run?
A: No. The IEEE standard tightly bounds the DR4 to 500 meters to accommodate the dispersion penalties of 50G PAM4 modulation over 1310nm glass. Exceeding this triggers rapid packet loss.
-
Q: Does this specific transceiver use active TEC cooling?
A: No, the DR4 utilizes uncooled DFB technology to keep the aggregate hardware power draw below 5.5W.
Reviews
There are no reviews yet.