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Allied Telesyn AT-MX40FST-05
Product Name
AT-MX40F/ST-05 CentreCOM micro fiber Ethernet transceiver, AUI to 10Base-FL/ST.
Overview
Legacy micro transceiver that connects AUI-equipped Ethernet devices to fiber optic LANs using ST connectors. Suitable for 10 Mbps fiber extension and retention of older AUI hosts, hubs or servers.
Detailed content
Technical Specifications
- Interface host side: AUI 15-pin D-sub
- Fiber side: ST connector
- Ethernet standard: IEEE 802.3 10Base-FL/FOIRL
- Data rate: 10 Mbps
- Multimode documentation: up to 2 km without external attenuation in CentreCOM micro series
- Single-mode ordering variant: AT-MX40F/SM-05; ST single-mode documentation lists up to 14 km
- Wavelength information: 1300 nm listed for single-mode MX40F/SM in product literature; multimode MX40F/ST optical budgets vary by fiber type
- Power: AUI-powered in micro-transceiver operation; some AT-MX40F/ST labels list 12 VDC/300 mA external/auxiliary
- Dimensions: 69 x 42 x 19.3 mm, 2.70 x 1.66 x 0.76 in
- Weight: 57 g for MX40F series base unit; some AT-MX40F/ST-05 labeled units list 130 g with housing/power accessories
- Operating temperature: 0–50°C
- Storage temperature: -20–60°C
- Humidity: 5–80% non-condensing
- Approvals: FCC, UL, CSA, TUV, IEC 825-1, CE per MX40F series literature
Functional Features
Direct AUI connection, automatic receive light-level adjustment in CentreCOM micro series, link monitor, jabber/auto-reset, SQE/heartbeat selectable, diagnostics LEDs for transmit/receive/link/collision/jabber/power depending on model.
Application Scenarios
Legacy AUI server to fiber conversion, historical 10 Mbps factory networks, hub-to-fiber extension, obsolete Ethernet equipment spares.
Material Composition
Metal/ molded micro-transceiver housing, optical ST coupler, AUI D-sub connector, PCB with 10Base-FL PHY and LED indicators.
Structural Characteristics
Compact external micro transceiver, AUI cable or direct AUI port connection, front ST optical port, status LED array.
Working Principle
The AUI interface supplies data and control signals from the host. The transceiver encodes 10 Mbps Ethernet into 10Base-FL optical pulses for ST fiber, detects collision and receive light level, and returns electrical status to the AUI controller.
Installation Requirements
Connect AUI 15-pin cable to host or use direct AUI port. Attach ST fiber with correct polish and cleanliness. Verify 10Base-FL/FOIRL compatibility. For 12 VDC-labeled units, use approved power source; for AUI-powered units, confirm host AUI power budget.
Usage Precautions
Do not use multimode ST unit on single-mode links beyond its optical budget. Avoid unauthorized optical attenuator removal/insertion. Keep ST ferrules clean. Confirm 10 Mbps AUI host before deployment because the unit is not 100/1000 Mbps.
