1. Product Overview

Product Name: SM Fiber SC to UTP Media Converter
Model: AT-MC1013L
Series: Allied Telesyn Fast Ethernet Media Converter Series
Article Number: AT-MC1013L
Manufacturer: Allied Telesyn International Corp.

The Allied Telesyn AT-MC1013L is a single-mode fiber (SC connector) to unshielded twisted pair (UTP) media converter designed to extend the reach of Ethernet networks by bridging copper-based and fiber-optic segments. It supports both standalone and rack-mounted configurations, offering flexible deployment options for enterprise, industrial, and telecommunications environments. The converter enables seamless integration between 100Base-TX and 100Base-FX network segments, providing reliable data transmission over distances up to 40 km depending on the fiber type.

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2. Key Features

- Media Conversion: Converts 100Base-TX (UTP) Ethernet signals to 100Base-FX (fiber optic) and vice versa, enabling network extension over long distances.
- Fiber Support: Compatible with both multimode and single-mode fiber optics, including long-haul (LH) variants for extended reach up to 40 km.
- Auto-Negotiation: Automatically detects and configures full-duplex or half-duplex operation when connected to Fast Ethernet auto-negotiation switches, ensuring optimal bandwidth utilization.
- “Missing Link” Function: Provides real-time link status reporting to network management systems. If a fiber link fails, the converter signals the connected switch, allowing redundant links to activate automatically.
- MDI/MDIX Auto-Crossover: Built-in switch allows direct connection to PCs, hubs, or switches using standard twisted pair cables without requiring crossover cables.
- Link Test Function: Enables verification of fiber link integrity during installation without specialized test equipment.
- Flexible Deployment: Operates as a standalone unit with an external power supply or can be installed in a 19” rack chassis accommodating up to 12 converters with shared power.
- LED Indicators: Front panel LEDs provide clear visual feedback for power, link status, data reception, and test mode.
- High Reliability: Designed for continuous operation with robust electrical and mechanical certifications.
- Lifetime Warranty: Allied Telesyn provides an unlimited functional warranty and free technical support for all Fast Ethernet media converters.

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3. Technical Specifications

- Dimensions: 105 mm (W) × 95 mm (D) × 25 mm (H)
- Weight: 294 g
- Operating Temperature: 0°C to +50°C
- Storage Temperature: -20°C to +80°C
- Relative Humidity: 5% to 80%, non-condensing
- Power Supply: External 12 VDC ±5%
- Power Consumption: 6 W (maximum 500 mA current draw)
- Round Trip Delay: 0.4 µs maximum
- Bit Error Rate (BER): <10⁻⁹

Mechanical and Electrical Certifications:
- EMC: FCC Class A, IC Class A
- Safety: UL, CSA, TÜV, IEC 825-1
- CE compliant

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4. Functionality

The AT-MC1013L functions as a transparent media converter between copper-based Ethernet (100Base-TX) and fiber-based Ethernet (100Base-FX). It regenerates and converts electrical signals from twisted pair cabling into optical signals for transmission over fiber, and vice versa.

Use Cases and Applications:
- Extending LAN segments beyond the 100-meter copper limitation using fiber optic cabling.
- Connecting remote buildings or network nodes within campus environments.
- Integrating fiber backbones with copper-based switches or workstations.
- Providing redundant fiber links in mission-critical networks using the “Missing Link” feature.
- Testing and verifying fiber connections during installation or maintenance.

Compatibility:
- Fully compatible with IEEE 802.3u 100Base-TX/100Base-FX standards.
- Works with standard SC fiber connectors and Category 5 UTP cables.
- Supports both full-duplex and half-duplex Ethernet modes.

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5. Components & Accessories

Included Items:
- AT-MC1013L media converter unit
- External 12 VDC power adapter
- User documentation and installation guide

Optional Accessories:
- 19” rack-mount chassis (supports up to 12 converters)
- Redundant internal power supply module for chassis
- Fiber patch cables (SC connectors)
- UTP Category 5 or higher Ethernet cables

Connectors:
- Fiber Port: SC connector (single-mode or multimode depending on model variant)
- Copper Port: RJ-45 connector for 100Base-TX UTP connection

Front Panel Indicators:
- Power: Indicates converter power status
- Link (2): Shows active, error-free link on fiber and copper ports
- Receive (2): Indicates valid data reception
- Normal/Test: Selects between normal operation and fiber link test mode

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6. Installation & Setup

Requirements:
- 12 VDC power source (external adapter included)
- Appropriate fiber optic cabling (single-mode or multimode)
- Category 5 or better twisted pair cable for copper connection

Mounting Options:
- Standalone: Operates independently using the included external power supply.
- Rack-Mount: Up to 12 converters can be installed in a 19” rack chassis with shared internal power. Optional redundant power supply ensures continuous operation in critical environments.

Configuration Steps:
1. Connect the fiber cable to the SC port (ensure correct TX/RX alignment).
2. Connect the UTP cable to the RJ-45 port.
3. Power the unit using the supplied adapter or chassis power.
4. Verify LED indicators for link and activity status.
5. Use the “Normal/Test” switch to perform a fiber link test if required.

Link Test Function:
Activating the test mode allows the user to verify fiber continuity and detect cable faults without external measurement tools.

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7. Performance & Capabilities

Transmission Distances:
- UTP (Category 5): Up to 100 m
- Fiber Multimode (Full Duplex): Up to 2000 m
- Fiber Multimode (Half Duplex): Up to 412 m
- Fiber Singlemode (Full Duplex): Up to 15 km
- Fiber Singlemode (Half Duplex): Up to 412 m
- Fiber Singlemode Long Haul (Full Duplex): Up to 40 km

Optical Characteristics (100Base-FX Multimode):
- Wavelength: 1300 nm (typical), range 1200–1300 nm
- Receiver Sensitivity: -34.5 dBm
- Maximum Output Power: -14 dBm

Optical Characteristics (100Base-SX Multimode):
- Wavelength: 830 nm (typical), range 810–850 nm
- Receiver Sensitivity: -30 dBm
- Maximum Output Power: -12 dBm

Optical Characteristics (100Base-FX Singlemode):
- Wavelength: 1300 nm (typical), range 1261–1360 nm
- Receiver Sensitivity: -31 dBm
- Optical Output Power: Typical -13.9 dBm (min -15 dBm, max -8 dBm)

Optical Characteristics (Singlemode Long Haul):
- Wavelength (TX): 1280–1335 nm
- Wavelength (RX): 1260–1360 nm
- Receiver Sensitivity: Typical -38 dBm (max -35 dBm)
- Output Power: Typical -3 dBm (range -5 to 0 dBm)

Twisted Pair Electrical Characteristics:
- Differential Output Voltage: 950–1050 mV (typical 980 mV)
- Overshoot Voltage: ≤5% (typical 4%)
- Amplitude Symmetry: 0.98–1.02 (typical 1.0062)
- Rise Time: 3.0–5.0 ns (typical 4.6 ns)
- Fall Time: 3.0–5.0 ns (typical 4.2 ns)
- Rise/Fall Time Symmetry: ≤0.5 ns (typical 0.4 ns)

Performance Summary:
The AT-MC1013L delivers high-speed 100 Mbps Ethernet connectivity with minimal latency and low bit error rates. Its optical and electrical parameters ensure stable performance across various fiber and copper media types. The converter’s auto-negotiation and link management features optimize throughput and maintain network reliability even under variable conditions.

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8. Standards & Compliance

Regulatory and Safety Compliance:
- EMC: FCC Class A, IC Class A (industrial/commercial environments)
- Safety: UL, CSA, TÜV certified
- Optical Safety: IEC 825-1 compliant (laser safety)
- CE Marking: Conforms to European safety and electromagnetic compatibility directives

Industry Standards:
- IEEE 802.3u 100Base-TX/100Base-FX Fast Ethernet
- ISO/IEC 11801 structured cabling standards
- ANSI/TIA/EIA-568-B for twisted pair cabling

These certifications ensure that the AT-MC1013L meets international standards for performance, safety, and electromagnetic compatibility, making it suitable for deployment in regulated enterprise and industrial environments.

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9. Additional Information

Warranty:
Allied Telesyn provides a lifetime functional warranty for the AT-MC1013L, ensuring long-term reliability and customer confidence.

Technical Support:
Free technical assistance is available through Allied Telesyn’s regional offices and authorized service centers across Europe, including the United Kingdom, Germany (North and South), Austria, France, Italy, and Spain.

Maintenance:
The converter requires minimal maintenance. Periodic inspection of fiber connectors and cleaning of optical interfaces are recommended to maintain optimal performance. The external power supply should be checked for stable voltage output.

Software/Firmware Updates:
As a hardware-based media converter, the AT-MC1013L does not require firmware updates. However, Allied Telesyn provides updated documentation and compatibility notes as part of ongoing product support.

Ordering Information:
- Part Number: 617-00275-05
- Product Code: AT-MC1013L
- Description: SM Fiber SC to UTP Media Converter

Manufacturer Contact:
Allied Telesyn International Corp.
Website: [www.alliedtelesyn.com](http://www.alliedtelesyn.com)

Regional Offices:
- UK: Allied Telesyn International Ltd., 70 Milton Park, Abingdon, Oxon, OX14 4RX
- Germany (North): Wittestraße 30N, 13509 Berlin
- Germany (South): Gute Änger 13, 85356 Freising
- Austria (Eastern Europe): Fleschgasse 32/6, 1130 Wien
- France: 6 Avenue des Andes, Bâtiment 5, 91952 Les Ulis Cedex
- Italy: Via Anna Kuliscioff 31, 20152 Milano
- Spain: Orense 85, 28020 Madrid

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Summary

The Allied Telesyn AT-MC1013L is a robust, high-performance Fast Ethernet media converter engineered for professional network environments requiring reliable copper-to-fiber connectivity. Supporting both single-mode and multimode fiber, it extends Ethernet transmission distances up to 40 km while maintaining full 100 Mbps throughput. Its intelligent features—such as auto-negotiation, “Missing Link” fault reporting, and built-in link testing—simplify network management and enhance operational resilience.

Compact, lightweight, and compliant with international safety and EMC standards, the AT-MC1013L is ideal for enterprise backbones, campus networks, and industrial communication systems. With flexible installation options, lifetime warranty, and global technical support, it represents a dependable solution for extending and optimizing Ethernet infrastructure.