
The 400GBASE-ZRP compatible module serves equipment requiring a 400G QSFP-DD interface with 1528.77nm-1567.13nm optics and a >600km rating. Connection is through Duplex LC/UPC. Product data, application guidance and factory verification are presented together to support network teams verify host acceptance as well as physical interface fit.
OEM Part Number: 400GBASE-ZRPHT Part Number: QDD-ZRP-400G
| Arista Compatible | 400GBASE-ZRP |
|---|---|
| Manufacturer | HT |
| HT Part Number | QDD-ZRP-400G |
| Form Factor | QSFP-DD |
| Max. Data Rate | 100/200/300/400 Gbps |
| Wavelength | 1528.77nm-1567.13nm |
| Max. Cable Distance | >600km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| CD Tolerance | ZR400-OFEC-16QAM: 12.0ns/nmZR300-OFEC-8QAM: 18.0ns/nmZR200-OFEC-QPSK: 24.0ns/nmZR100-OFEC-QPSK: 48.0ns/nm |
| DDM/DOM | Supported |
| TX Power | -13~-7dBm |
| RX Power | Amplified: Full Rx OSNR tolerance: -12~0dBm Extended range: ZRx00-OFEC: -18~3dBm 400ZR: -15~1dBm Unamplified: 400ZR: -20~0dBm ZR400-OFEC-16QAM: -23~0dBm ZR300-OFEC-8QAM: -26~0dBm ZR200-OFEC-QPSK: -30~0dBm ZR100-OFEC-QPSK: -32~0dBm |
| Max. Power Consumption | 22.5W |
| Commercial Temperature Range | 0~70℃ |
| OSNR Tolerance | 400G ZR: 26dB/0.1nm400G ZR+: 23.5dB/0.1nm300G ZR+: 20dB/0.1nm200G ZR+: 15dB/0.1nm100G ZR+: 12dB/0.1nm |
| Inbuilt FEC | OFEC, CFEC |
| Modulation Format | 100G DP-QPSK,200G DP-QPSK,300G DP-8QAM,400G DP-16QAM |
| Protocols | Open ZR+ MSA 2.0 and OIF-400ZR-02.0, OIF-CMIS-05.2, OIF-C-CMIS-01.2, QSFP-DD-Hardware-Rev6.3, IEEE Std 802.3-2018 |
This coherent interface is suited to data-center interconnect, metro transport and managed DWDM links where the host platform supports the stated modulation and FEC modes. Design the optical line around the actual launch power, receiver range, OSNR requirement and span loss; the stated reach is not a substitute for a link-budget calculation. Use matching coherent modules and the appropriate DWDM channel plan at both ends.
Before deployment, check the host port type, supported data rate and firmware requirements. The 400G interface configuration must match the remote equipment; sharing a QSFP-DD housing alone does not make two transceiver types interoperable.
For this coherent interface, document the wavelength plan and modulation or FEC settings before commissioning. Measure span loss and verify adequate OSNR. Interoperability depends on compatible coherent modes as well as form factor, so another coherent part number must not be substituted without engineering review.
Factory verification starts with the expected 400GBASE-ZRP identity and finishes with an operating host link. EEPROM data, diagnostic visibility and the stated optical parameters are assessed together. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
For this model, the specified transmit-power range is -13~-7dBm. 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. Diagnostic monitoring is listed as Supported. 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.
Check three layers before deployment: host acceptance of the module identity, port support for the stated rate, and a matching optical standard at the remote interface. For breakout operation, confirm lane configuration too. Similar-looking cages can behave differently across speeds and firmware settings. For this model, the principal parameters are data rate 100/200/300/400 Gbps, wavelength 1528.77nm-1567.13nm, rated reach >600km.
Use 400GBASE-ZRP as the compatibility cross-reference and QDD-ZRP-400G as the HT ordering identity. Keep other reaches or wavelength directions on separate order lines. Neutral labels, customer packaging and project-specific compatibility review are available on request.
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.
Quality control covers the optical or electrical interface, host identification and operating link. The verified unit is then individually protected and cartoned. Customer references, rack groups and project packing lists can be added for volume orders.
No. It is an HT-manufactured compatible alternative for equipment that specifies 400GBASE-ZRP, not an original Arista Networks-branded module.
Use Duplex LC/UPC with SMF. The specified maximum reach is >600km, subject to fiber quality and total link loss.
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.