Product Overview
The TS-QD-CO4H-ZRPC is a premium, high-performance 400G QSFP-DD Open ZR+ Coherent Optical Transceiver Module engineered specifically for modern Data Center Interconnect (DCI), metropolitan networks, and regional long-haul optical transport applications. Fully compliant with Open ZR+ MSA and OIF 400ZR standards, this module empowers network operators to scale bandwidth efficiently while reducing overall deployment complexity.
This coherent transceiver integrates a cutting-edge 7nm DSP ASIC, ultra-narrow line-width tunable C-band lasers (spanning 1528.77nm to 1567.13nm), and high-sensitivity coherent receivers. By supporting flexible, multi-rate transmissions (100G/200G/300G/400G) combined with advanced PM-QPSK and PM-16QAM modulation formats, the TS-QD-CO4H-ZRPC delivers an optimal balance between maximum fiber capacity and extended transmission distance over single-mode fiber (SMF) links.
Figure 1 shows the front panel of 400G QSFP-DD OPEN ZR+ .
Key Features and Benefits
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Multi-Rate Coherent Transmission: Supports adjustable operation modes across 100G, 200G, 300G, and 400G to match distinct network topologies.
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Open Architecture: Built on the Open ZR+ framework to ensure robust multi-vendor interoperability and decouple networking hardware.
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IP-over-DWDM Efficiency: Plugs directly into high-density routing and switching platforms, eliminating the need for bulky, standalone external transponder shelves.
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Extended Reach: Reaches up to 450 km at full 400G capacity or up to 2000 km at 100G when paired with amplified line systems.
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Advanced FEC (Forward Error Correction): Features Open FEC (O-FEC) for superior coding gain and exceptional tolerance to optical impairments.
Detailed Technical Specifications
| Category |
Parameter |
Specification Profile |
| General Properties |
Model / Part Number |
TS-QD-CO4H-ZRPC / 400G QSFP-DD OPEN ZR+ |
|
Form Factor |
QSFP-DD (Hardware-Rev6.3, CMIS-Rev5.2 compliant) |
| Optical Performance |
Wavelength Range |
Full C-Band Tunable (1528.77nm ~ 1567.13nm) with ±1.5 GHz stability |
|
Modulation Formats |
PM-QPSK (100G/200G), PM-16QAM (200G/300G/400G) |
|
Optical Link Budgets |
TX Power: -0.5 dBm (Default); RX Input Range: 0 to -18 dBm |
| Reach & Tolerance |
Transmission Distance |
Amplified: 400G ≤ 450km / 100G ≤ 2000km | Unamplified: ≤ 40km (400G) |
|
CD Tolerance |
±40,000 ps/nm (PM-QPSK); ±10,000 ps/nm (PM-16QAM) |
| Electrical & Interface |
Power Consumption |
Typical: 18W-22W | Maximum: 24W (under full load) |
|
Connectors / Interface |
Duplex LC/UPC Optical Connector; 76-pin electrical CEI-56G-VSR |
Architecture Comparison: Open ZR+ vs. Standard OIF 400ZR
Understanding the design choices between Open ZR+ and standard 400ZR protocols is critical for engineering an efficient backbone. The table below outlines why the TS-QD-CO4H-ZRPC offers enhanced versatility for regional data networks:
| Network Criteria |
400G Open ZR+ (TS-QD-CO4H-ZRPC) |
Standard OIF 400ZR |
| Target Application |
Metro, Regional, and Multi-haul DWDM links |
Short-reach point-to-point edge DCI links |
| Max 400G Reach |
Up to 450 km - 1000 km (via amplified line systems) |
Limited up to 120 km max |
| Multi-Rate Operation |
Yes (Dynamically scales across 100G/200G/300G/400G) |
Fixed 400G mode only |
| Host Multiplexing |
Supports both Ethernet and OTN (OTU4/OTU CN) containers |
Strictly restricted to Ethernet (400GbE) |
| Forward Error Correction |
O-FEC (High-gain, 11.6dB net coding gain) |
C-FEC (Concatenated FEC, lower gain) |
FAQ
Q1: What are the primary architectural benefits of deploying Open ZR+ over traditional transponders?
A: Implementing Open ZR+ modules like the TS-QD-CO4H-ZRPC enables IP-over-DWDM (IPoDWDM). By placing the coherent optics directly inside edge switches or core routers, operators remove the intermediate transponder chassis. This reduces footprint, slashes capital expenditure (CapEx), lowers cooling bills, and simplifies network layer management.
Q2: Can this module interface seamlessly with Cisco, Arista, and other third-party switches?
A: Yes, it can. The module conforms strictly to standard MSA QSFP-DD dimensions and follows CMIS 5.2 configuration frameworks to allow robust cross-brand hardware interoperability. Because individual hardware vendors enforce distinct EEPROM coding verification, please inform our engineering team of your target host platform (e.g., Cisco Catalyst/NEXUS, Arista, Juniper, or Huawei) when ordering so we can initialize the optimal firmware match.
Q3: What technical onboarding and post-sales assistance do you offer for coherent link commissioning?
A: Coherent deployments demand exact parameters regarding line-side configurations, OSNR management, and optical power balances. We provide direct access to senior optical network field engineers who assist with link engineering budget calculations, remote commissioning consultation, pre-validation testing steps, and live troubleshooting diagnostics to guarantee clean BER margins.
Q4: What are your warranty policies and hardware replacement procedures for international business clients?
A: All our industrial-grade optical transceivers carry a comprehensive 1-Year Warranty covering design or assembly anomalies. If a hardware failure occurs in production environments, our prompt international Return Merchandise Authorization (RMA) infrastructure steps into action. Following a brief engineering diagnostic review, an expedited replacement hardware kit is typically processed and shipped out within 3 to 5 business days from our testing depot.
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