Arista Networks SFP-1G-CZ-1270 Compatible 1G SFP Transceiver Module

Arista Networks SFP-1G-CZ-1270 Compatible 1G SFP Transceiver Module

Built for hosts recognizing SFP-1G-CZ-1270, this HT-manufactured SFP module delivers 1G transmission at 1270nm. Its rated reach is 80km, with Duplex LC as the physical interface. The specifications and engineering guidance below support data-center designers evaluate optical reach, rack integration and host compatibility together, while keeping HT manufacture separate from the OEM cross-reference.

OEM Part Number: SFP-1G-CZ-1270HT Part Number: CW-SFP1G80-27

Product Highlights

  • Compatible alternative to Arista Networks SFP-1G-CZ-1270
  • 1G connectivity at 1000Mbps
  • Optical wavelength: 1270nm
  • Specified reach: 80km
  • Duplex LC / SMF interface
  • Digital diagnostic monitoring: Supported
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

Arista CompatiblSFP-1G-CZ-1270
ManufacturerHT
HT Part NumberCW-SFP1G80-27
Form FactorSFP
Max Data Rate1000Mbps
Wavelength1270nm
Max Cable Distance80km
ConnectorDuplex LC
MediaSMF
Transmitter TypeDFB CWDM
Receiver TypeAPD
Receiver Sensitivity1270~1370nm (APD): -30/-31dBm1390~1610nm (PIN): -28/-29dBm
SMSR30dB
SMSR30dB
TX Power0~5dBm
RX Power-30~-8dBm
Power Consumption≤1W
Power Budget24dB
EMC (Electro Magnetic Comnatihilitv)Supported
DDM/DOMSupported
Commercial Temperature Range0 to 70°C (32 to 158°F)
ProtocolsSFP MSASFF-8472

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 1G interface configuration must match the remote equipment; sharing a SFP housing alone does not make two transceiver types interoperable.

Wavelength-selective links require the exact channel plan at both ends. Confirm that filters pass 1270nm, then include their insertion loss in the 80km power budget. A nearby channel is not a substitute for the specified wavelength.

Quality Assurance and Packaging

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.

Optical Acceptance, Diagnostics and Handling

For this model, the specified transmit-power range is 0~5dBm; receiver sensitivity is 1270~1370nm (APD): -30/-31dBm1390~1610nm (PIN): -28/-29dBm; the stated optical power budget is 24dB. 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.

Data-Center Optical Design and Airflow

Select the module by optical standard, reach and rack layout. Check the complete fiber channel, including panels and connectors, and keep dense bundles from blocking front-panel airflow. Account for listed power consumption and preserve enough space to remove a module without disturbing adjacent links. For this model, the principal parameters are data rate 1000Mbps, wavelength 1270nm, rated reach 80km.

Ordering Information

Quote HT part number CW-SFP1G80-27 together with OEM reference SFP-1G-CZ-1270 and quantity. Add the host model and software release when pre-order verification is required. Neutral labels, customer packaging and project-specific compatibility review are available on request.

Arista Networks Compatibility and Factory Testing

Factory verification starts with the expected SFP-1G-CZ-1270 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.

Frequently Asked Questions

Is this an original Arista Networks transceiver?

No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-1G-CZ-1270, not an original Arista Networks-branded module.

Which fiber and connector are required?

Use Duplex LC with SMF. The specified maximum reach is 80km, 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.


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