H3C SFP-GE-LX-SM1310-20 Compatible 1G SFP Transceiver Module

H3C SFP-GE-LX-SM1310-20 Compatible 1G SFP Transceiver Module

The SFP-GE-LX-SM1310-20 compatible module serves equipment requiring a 1G SFP interface with 1310nm optics and a 20km rating. Connection is through Duplex LC/UPC. Product data, application guidance and factory verification are presented together to support installers plan a serviceable optical connection at the equipment rack.

OEM Part Number: SFP-GE-LX-SM1310-20HT Part Number: SFP1G-ELX-31

Product Highlights

  • Compatible alternative to H3C SFP-GE-LX-SM1310-20
  • 1G connectivity at 1.25Gbps
  • Optical wavelength: 1310nm
  • Specified reach: 20km
  • Duplex LC/UPC / SMF interface
  • Digital diagnostic monitoring: Supported
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

H3C CompatibleSFP-GE-LX-SM1310-20
ManufacturerHT
HT Part NumberSFP1G-ELX-31
Form FactorSFP
Max. Data Rate1.25Gbps
Wavelength1310nm
Max. Cable Distance20km
ConnectorDuplex LC/UPC
MediaSMF
Transmitter TypeFP 1310nm
Receiver TypePIN
TX Power-9.5~-3dBm
Minimum Receiver Power< -23dBm
Power Budget13.5dB
Receiver Overload-3dBm
Power Consumption≤1W
Extinction Ratio>9dB
DDM/DOMSupported
Commercial Temperature Range0 to 70°C (32 to 158°F)
ProtocolsSFF-8472 MSA Compliant, IEEE 802.3ah-2004, IEEE 802.3z

Rack Integration and Service Access

Plan the fiber route before removing connector protection. The patch lead should follow its manager without pulling on the transceiver, while leaving space to release the latch and service adjacent ports. Protect the end face until final connection and avoid tight bends immediately behind warm exhaust air. For this model, the principal parameters are data rate 1.25Gbps, wavelength 1310nm, rated reach 20km.

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.

The single-mode link budget should include fiber attenuation, connectors, splices and panels over the intended 20km route. Keep the Duplex LC/UPC interface clean and match the remote optical standard. Consider receiver overload as well as insufficient power on short links.

Optical Acceptance, Diagnostics and Handling

For this model, the specified transmit-power range is -9.5~-3dBm; the stated optical power budget is 13.5dB. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. 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.

Quality Assurance and Packaging

Before packing, the module receives interface inspection, identification and link checks. Protective packaging avoids pressure on the connector and latch. Customer references, rack groups and project packing lists can be added for volume orders.

H3C Compatibility and Factory Testing

Compatibility testing for SFP-GE-LX-SM1310-20 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.

Frequently Asked Questions

Is this an original H3C transceiver?

No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-GE-LX-SM1310-20, not an original H3C-branded module.

Which fiber and connector are required?

Use Duplex LC/UPC with SMF. The specified maximum reach is 20km, 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.

Ordering Information

Quote HT part number SFP1G-ELX-31 together with OEM reference SFP-GE-LX-SM1310-20 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.

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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