Avago AFCT-57xx Modules – Including AFCT-5715APZ

Technical Dossier

Product Details And Specifications

Avago AFCT-57xx Series: Comprehensive Module Range and Technical Overview

The Avago AFCT-57xx series is a family of 1×9 fiber optic transceivers engineered for high-reliability data communication in industrial environments. These modules are deployed across global heavy industry sectors — including petrochemical refineries, nuclear power plant control networks, offshore platforms, and continuous-process manufacturing facilities — where copper-based signal transmission is unsuitable due to electromagnetic interference, ground loop risk, or long-distance requirements.

Manufactured under Avago Technologies (subsequently acquired by Broadcom Inc.), the AFCT-57xx series has maintained a consistent footprint in legacy DCS backplane communication links, SCADA fiber rings, and safety instrumented system (SIS) networks. Their 1×9 form factor and standardized duplex SC interface make them a direct-fit replacement component in systems originally commissioned in the 1990s through the 2010s, many of which remain in active service with no near-term decommissioning plan.

For plant engineers managing aging infrastructure, sourcing a verified AFCT-57xx module is not a routine procurement task — it is an asset protection decision. A single failed transceiver in a fiber ring topology can isolate an entire process control segment, triggering unplanned shutdowns with per-hour costs that dwarf the component replacement value by orders of magnitude.

The Evolution of AFCT-57xx Architecture

The AFCT-57xx series was developed during the transition period when industrial fiber optic communication moved from proprietary backplane protocols to standardized 100BASE-FX and Fast Ethernet physical layers. Early variants targeted 155 Mbps ATM and SONET/SDH tributary applications; subsequent revisions aligned with IEEE 802.3u Fast Ethernet at 125 MBd, which became the dominant standard for DCS inter-module fiber links.

The series uses a surface-mount 1×9 package with an integrated duplex SC receptacle — a design that prioritized board-level density and field replaceability without specialized tooling. Internal laser sources are Fabry-Perot (FP) type operating in the 1300 nm window, chosen for compatibility with multimode fiber (MMF) infrastructure already installed in most industrial facilities during the 1980s and 1990s.

As Broadcom rationalized the Avago portfolio post-acquisition, several AFCT-57xx variants transitioned to managed end-of-life status. However, installed base demand has sustained secondary market availability. For systems where the host board accepts only the 1×9 footprint — and where re-engineering the fiber interface is not economically viable — the AFCT-57xx remains the only technically compliant replacement path.

Compatibility reference: AFCT-57xx modules are commonly found in Honeywell TDC 3000 and Experion fiber highway cards, ABB Advant OCS communication modules, Foxboro I/A Series FBM fiber links, and Siemens TELEPERM XP inter-controller fiber buses. Any substitution must match wavelength, fiber type (MMF 62.5/125 µm or 50/125 µm), and operating data rate precisely.

AFCT-57xx Full Catalog & Functionalities (SKU List)

The following SKUs represent verified members of the Avago AFCT-57xx transceiver family, organized by primary application and data rate. Each entry reflects a distinct optical or electrical specification variant.

Fast Ethernet / 100BASE-FX (125 MBd, 1300 nm MMF)

• AFCT-5715APZ: 100BASE-FX 1×9 transceiver, 1300 nm FP laser, duplex SC, 2 km MMF, RoHS compliant, commercial temp
• AFCT-5715ATZ: 100BASE-FX 1×9, 1300 nm, extended industrial temperature variant (-40°C to +85°C)
• AFCT-5715PZ: 100BASE-FX 1×9, standard commercial grade, non-RoHS legacy production variant
• AFCT-5715Z: 100BASE-FX 1×9, earlier production revision, compatible pinout with AFCT-5715APZ
• AFCT-5713APZ: 100BASE-FX 1×9, 1300 nm, reduced link budget for short-reach MMF (<500 m)
• AFCT-5713ATZ: 100BASE-FX 1×9, short-reach MMF, extended temperature, industrial enclosure rated
• AFCT-5713Z: 100BASE-FX 1×9, legacy non-RoHS, short-reach MMF, predecessor to AFCT-5713APZ

155 Mbps / OC-3 / STM-1 (SONET/SDH Tributary)

• AFCT-5723APZ: 155 Mbps 1×9, 1300 nm FP, duplex SC, OC-3/STM-1 compliant, 2 km MMF
• AFCT-5723ATZ: 155 Mbps 1×9, extended temperature, OC-3 compliant, for harsh environment enclosures
• AFCT-5723Z: 155 Mbps 1×9, legacy non-RoHS, OC-3 tributary, predecessor production lot
• AFCT-5725APZ: 155 Mbps 1×9, 1300 nm, higher receiver sensitivity, extended-reach MMF variant
• AFCT-5725ATZ: 155 Mbps 1×9, extended temperature, high-sensitivity receiver, OC-3 compliant

622 Mbps / OC-12 / STM-4

• AFCT-5763APZ: 622 Mbps 1×9, 1300 nm FP, duplex SC, OC-12/STM-4, 500 m MMF reach
• AFCT-5763ATZ: 622 Mbps 1×9, extended temperature, OC-12 compliant, industrial backplane use
• AFCT-5763Z: 622 Mbps 1×9, legacy non-RoHS, OC-12, earlier production revision

1.0625 Gbps / Fibre Channel (1GFC)

• AFCT-5765APZ: 1.0625 Gbps 1×9, 1300 nm FP, duplex SC, 1GFC compliant, 500 m MMF
• AFCT-5765ATZ: 1.0625 Gbps 1×9, extended temperature, 1GFC, for industrial SAN fiber segments

Sourcing Hard-to-Find & Obsolete AFCT-57xx Parts

While several AFCT-57xx variants remain in Broadcom's active catalog, specific date codes, RoHS compliance revisions, and temperature-grade variants are frequently unavailable through standard distribution channels. Lead times from authorized distributors for low-volume industrial quantities routinely extend to 16–52 weeks — operationally unacceptable for facilities running continuous processes.

DriveKNMS maintains a dedicated inventory of AFCT-57xx transceivers sourced through verified industrial surplus channels. Each unit undergoes traceability screening prior to listing. For end-of-life variants such as the non-RoHS AFCT-5715Z and AFCT-5723Z, DriveKNMS provides the primary reliable sourcing path for facilities that cannot accept RoHS-compliant substitutes due to host board material compatibility constraints.

Procurement managers responsible for critical spare parts programs are advised to establish a buffer stock of AFCT-57xx modules proportional to the number of fiber-linked nodes in their control system. A minimum of two units per fiber highway segment is a conservative baseline; facilities with no local repair capability should hold four or more per segment. The cost of holding this inventory is negligible relative to the cost of a single unplanned process shutdown caused by transceiver failure.

Quality Control for the AFCT-57xx Range

Fiber optic transceivers sourced outside authorized distribution channels require a structured verification process. Counterfeit and non-functional units are present in the secondary market for high-demand industrial components. DriveKNMS applies the following test protocol to all AFCT-57xx inventory:

• Step 1 – Visual and mechanical inspection: SC receptacle alignment, housing integrity, lead coplanarity, and date code / lot code marking authenticity check against known Avago production records.
• Step 2 – Optical power output measurement: Transmitter average optical power measured with calibrated optical power meter at 1300 nm. Verified against datasheet Tx power specification (typically -19 dBm to -14 dBm for 100BASE-FX variants).
• Step 3 – Receiver sensitivity verification: Optical input applied at minimum sensitivity threshold; digital output signal integrity confirmed on oscilloscope. Confirms receiver is not degraded by photodetector aging.
• Step 4 – Data rate compliance test: Module exercised at rated data rate (125 MBd, 155 Mbps, or 622 Mbps depending on variant) with PRBS pattern. Bit error rate confirmed below 10⁻¹².
• Step 5 – Thermal cycling check: For extended-temperature (ATZ) variants, functional verification performed at temperature extremes prior to shipment.