Allied Telesis AT-SPFX/40 Compatible High-Speed SFP Transceiver Module

Allied Telesis AT-SPFX/40 Compatible High-Speed SFP Transceiver Module

The AT-SPFX/40 compatible module serves equipment requiring a High-Speed SFP interface with 1310nm optics and a 40km rating. Connection is through Duplex LC. 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: AT-SPFX/40HT Part Number: SFP-100EX-31

Product Highlights

  • Compatible alternative to Allied Telesis AT-SPFX/40
  • High-Speed connectivity at 100Mbps
  • Optical wavelength: 1310nm
  • Specified reach: 40km
  • Duplex LC / SMF interface
  • Operating temperature: 0 to 70°C (32 to 158°F)
  • Factory compatibility verification and optical performance testing before shipment

Specifications

Allied Telesis CompatibleAT-SPFX/40
ManufacturerHT
HT Part NumberSFP-100EX-31
Form FactorSFP
Max Data Rate100Mbps
Wavelength1310nm
Max Cable Distance40km
ConnectorDuplex LC
Optical ComponentsFP 1310nm
MediaSMF
DOM SupportYes
TX Power-5~0dBm
Receiver Sensitivity< -34dBm
Commercial Temperature Range0 to 70°C (32 to 158°F)
ProtocolsGR-468, MSA Compliant

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 100Mbps, wavelength 1310nm, rated reach 40km.

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

Before commissioning, measure the complete single-mode channel against the stated budget for 40km. Inspect every Duplex LC connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and optical standard.

Optical Acceptance, Diagnostics and Handling

For this model, the specified transmit-power range is -5~0dBm; receiver sensitivity is < -34dBm. 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. 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

Each AT-SPFX/40 compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. Customer references, rack groups and project packing lists can be added for volume orders.

Allied Telesis Compatibility and Factory Testing

Factory verification starts with the expected AT-SPFX/40 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 Allied Telesis transceiver?

No. It is an HT-manufactured compatible alternative for equipment that specifies AT-SPFX/40, not an original Allied Telesis-branded module.

Which fiber and connector are required?

Use Duplex LC with SMF. The specified maximum reach is 40km, 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 SFP-100EX-31 together with OEM reference AT-SPFX/40 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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