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- Media Conversion: Converts 100Base-TX (UTP) to 100Base-FX (fiber optic) for extended network distances.
- Fiber Interface: Supports multimode and singlemode fiber connections with MT-RJ connectors.
- Auto-Negotiation: Automatically detects and configures full- or half-duplex operation when connected to Fast Ethernet switches supporting auto-negotiation.
- “Missing Link” Function: Provides real-time link status feedback to network management systems, enabling redundancy and fault detection. If a fiber link fails, the converter signals the switch to activate a backup path.
- Link Test Function: Allows verification of fiber link integrity without specialized test equipment.
- MDI/MDIX Auto-Crossover: Built-in switch enables direct connection to PCs, hubs, or switches using standard twisted-pair cables.
- Standalone or Rack-Mount Operation: Can be used individually with an external power supply or installed in a 19” rack chassis accommodating up to 12 converters with shared power.
- LED Indicators: Front panel LEDs display power, link status, data reception, and test mode for easy diagnostics.
- Wide Operating Range: Designed for 0°C to 50°C operation, suitable for standard office and controlled industrial environments.
- Lifetime Warranty: Allied Telesyn provides an unlimited functional warranty and free technical support.
- Fiber Interface: Supports multimode and singlemode fiber connections with MT-RJ connectors.
- Auto-Negotiation: Automatically detects and configures full- or half-duplex operation when connected to Fast Ethernet switches supporting auto-negotiation.
- “Missing Link” Function: Provides real-time link status feedback to network management systems, enabling redundancy and fault detection. If a fiber link fails, the converter signals the switch to activate a backup path.
- Link Test Function: Allows verification of fiber link integrity without specialized test equipment.
- MDI/MDIX Auto-Crossover: Built-in switch enables direct connection to PCs, hubs, or switches using standard twisted-pair cables.
- Standalone or Rack-Mount Operation: Can be used individually with an external power supply or installed in a 19” rack chassis accommodating up to 12 converters with shared power.
- LED Indicators: Front panel LEDs display power, link status, data reception, and test mode for easy diagnostics.
- Wide Operating Range: Designed for 0°C to 50°C operation, suitable for standard office and controlled industrial environments.
- Lifetime Warranty: Allied Telesyn provides an unlimited functional warranty and free technical support.
1. Product Overview
Product Name: AT-MC302XL
Model / Series: Allied Telesyn Fast Ethernet Media Converter Series
Article Number: AT-MC302XL (Part No. 617-00275-05)
Manufacturer: Allied Telesyn International Corp.
Product Type: MM Fiber MT-RJ to UTP Media Converter
Description: The Allied Telesyn AT-MC302XL is a compact, standalone or rack-mountable Fast Ethernet media converter designed to extend the reach of twisted-pair (UTP) networks over multimode or singlemode fiber optic cabling. It provides seamless conversion between 100Base-TX copper and 100Base-FX fiber interfaces, supporting both full- and half-duplex operation modes.
This converter is part of Allied Telesyn’s comprehensive line of network connectivity solutions, engineered for reliable, high-performance data transmission in enterprise, industrial, and campus network environments.
2. Key Features
- Media Conversion: Converts 100Base-TX (UTP) to 100Base-FX (fiber optic) for extended network distances.
- Fiber Interface: Supports multimode and singlemode fiber connections with MT-RJ connectors.
- Auto-Negotiation: Automatically detects and configures full- or half-duplex operation when connected to Fast Ethernet switches supporting auto-negotiation.
- “Missing Link” Function: Provides real-time link status feedback to network management systems, enabling redundancy and fault detection. If a fiber link fails, the converter signals the switch to activate a backup path.
- Link Test Function: Allows verification of fiber link integrity without specialized test equipment.
- MDI/MDIX Auto-Crossover: Built-in switch enables direct connection to PCs, hubs, or switches using standard twisted-pair cables.
- Standalone or Rack-Mount Operation: Can be used individually with an external power supply or installed in a 19” rack chassis accommodating up to 12 converters with shared power.
- LED Indicators: Front panel LEDs display power, link status, data reception, and test mode for easy diagnostics.
- Wide Operating Range: Designed for 0°C to 50°C operation, suitable for standard office and controlled industrial environments.
- Lifetime Warranty: Allied Telesyn provides an unlimited functional warranty and free technical support.
3. Technical Specifications
Physical Dimensions:
- Width: 105 mm
- Depth: 95 mm
- Height: 25 mm
- Weight: 294 g
Environmental Conditions:
- Operating Temperature: 0°C to +50°C
- Storage Temperature: -20°C to +80°C
- Relative Humidity: 5% to 80% (non-condensing)
Power Requirements:
- External Power Supply (auto-ranging)
- Input Voltage: 12 V DC ±5%
- Power Consumption: 6 W (max.)
- Current Draw: 0.5 A
Mechanical / Electrical Certifications:
- EMC: FCC Class A, IC Class A
- Safety: UL, CSA, TÜV, IEC 825-1
- CE Compliant
Optical Characteristics (Multimode 100FX):
- Wavelength: 1300 nm (typical), range 1200–1300 nm
- Receiver Sensitivity: -34.5 dBm
- Maximum Optical Output Power: -14 dBm
Optical Characteristics (Multimode 100SX):
- Wavelength: 830 nm (typical), range 810–850 nm
- Receiver Sensitivity: -30 dBm
- Maximum Optical Output Power: -12 dBm
Optical Characteristics (Singlemode 100BaseFX):
- 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
- Optical Output Power: Typical -3 dBm (range -5 to 0 dBm)
Twisted Pair Interface (100Base-TX):
- Differential Output Voltage: 950–1050 mV (typical 980 mV)
- Overshoot Voltage: Max 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: Max 0.5 ns (typical 0.4 ns)
Transmission Performance:
- Round Trip Delay: 0.4 µs (maximum)
- Bit Error Rate (BER): < 10⁻⁹
Maximum Cable Distances:
- Twisted Pair (Cat 5): 100 m
- Fiber Multimode (Full Duplex): 2000 m
- Fiber Multimode (Half Duplex): 412 m
- Fiber Singlemode (Full Duplex): 15 km
- Fiber Singlemode (Half Duplex): 412 m
- Fiber Singlemode Long Haul (Full Duplex): 40 km
- Fiber Singlemode Long Haul (Half Duplex): 412 m
4. Functionality
The AT-MC302XL operates as a transparent media converter between copper-based Ethernet and fiber optic networks. It automatically detects the link type and negotiates the optimal duplex mode. The device regenerates and converts electrical Ethernet signals into optical signals for transmission over fiber, and vice versa.
Use Cases and Applications:
- Extending LAN segments beyond the 100-meter copper limitation.
- Connecting remote buildings or network segments via fiber.
- Integrating fiber backbones with copper-based switches or servers.
- Providing redundant fiber links in mission-critical environments.
- Suitable for enterprise networks, campus infrastructures, and industrial automation systems.
Compatibility:
- Fully compliant with IEEE 802.3u 100Base-TX/100Base-FX standards.
- Compatible with Fast Ethernet switches, hubs, and network interface cards.
- Supports both multimode and singlemode fiber types with MT-RJ connectors.
5. Components & Accessories
Included Items:
- AT-MC302XL Media Converter Unit
- External 12 V DC Power Adapter
- User Documentation
Optional Accessories:
- 19” Rack-Mount Chassis (holds up to 12 converters)
- Redundant Power Supply Module for chassis installations
- Fiber patch cables (multimode or singlemode)
- UTP Category 5 patch cables
Front Panel Indicators:
- Power: Indicates converter power status.
- Link (2): Shows valid link on fiber and copper ports.
- Receive (2): Indicates data reception activity.
- Normal/Test: Selects between normal operation and fiber link test mode.
6. Installation & Setup
Requirements:
- Standard 100Base-TX Ethernet device (switch, hub, or NIC)
- Appropriate fiber optic cabling (multimode or singlemode)
- Power source (12 V DC external adapter or chassis power supply)
Mounting Options:
- Standalone: Operates independently using the included external power supply.
- Rack-Mount: Up to 12 converters can be installed in a 19” chassis for centralized power and management.
Configuration:
- Plug-and-play installation; no software configuration required.
- Auto MDI/MDIX eliminates the need for crossover cables.
- Link Test mode can be activated to verify fiber integrity before deployment.
Setup Procedure:
1. Connect the UTP port to the Ethernet device using a Cat 5 cable.
2. Connect the fiber port to the corresponding fiber network segment.
3. Apply power via the external adapter or chassis.
4. Verify link and activity LEDs for proper operation.
7. Performance & Capabilities
Speed: 100 Mbps (Fast Ethernet)
Duplex Modes: Full and Half Duplex (auto-negotiated)
Distance Capability: Up to 40 km (singlemode long haul)
Efficiency: Low power consumption (6 W max)
Latency: Minimal (0.4 µs round trip delay)
Error Rate: < 10⁻⁹ BER ensures high data integrity
Reliability: Continuous operation within specified temperature and humidity ranges
Limitations:
- Designed for Fast Ethernet (100 Mbps) only; not compatible with Gigabit Ethernet.
- Fiber distance depends on cable type and duplex mode.
8. Standards & Compliance
Network Standards:
- IEEE 802.3u 100Base-TX / 100Base-FX
Safety and EMC Compliance:
- UL (Underwriters Laboratories)
- CSA (Canadian Standards Association)
- TÜV (Technischer Überwachungsverein)
- IEC 825-1 (Laser Safety)
- FCC Class A (Electromagnetic Compatibility)
- IC Class A (Industry Canada)
- CE Mark (European Conformity)
Environmental Compliance:
- RoHS and WEEE compliant (depending on production year)
These certifications ensure the AT-MC302XL meets international safety, electromagnetic, and optical emission standards for professional networking equipment.
9. Additional Information
Warranty:
Allied Telesyn provides an unlimited functional warranty for the AT-MC302XL, ensuring long-term reliability and peace of mind.
Technical Support:
Free lifetime technical support is available through Allied Telesyn’s regional offices and online resources.
Maintenance:
- No moving parts; minimal maintenance required.
- Periodic inspection of fiber connectors recommended to maintain optimal signal quality.
- Firmware updates are not required, as the device operates on fixed hardware logic.
Service and Replacement:
- Hot-swappable when used in rack chassis.
- Replacement units available through Allied Telesyn distributors.
Manufacturer Contact Information (EU Offices):
- United Kingdom: 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, Z.A. de Courtaboeuf, 91952 Les Ulis Cedex
- Italy: Via Anna Kuliscioff 31, 20152 Milano
- Spain: Orense 85, 28020 Madrid
Website: [www.alliedtelesyn.com](http://www.alliedtelesyn.com)
Summary
The Allied Telesyn AT-MC302XL is a robust, high-performance Fast Ethernet media converter engineered to bridge copper and fiber network segments efficiently. With support for multimode and singlemode fiber up to 40 km, automatic duplex negotiation, and diagnostic features like “Missing Link” and Link Test, it ensures reliable connectivity and simplified troubleshooting. Its flexible deployment options—standalone or rack-mounted—make it ideal for enterprise, campus, and industrial network infrastructures requiring extended reach and dependable performance.
Built to meet stringent international standards and backed by a lifetime warranty, the AT-MC302XL exemplifies Allied Telesyn’s commitment to quality, reliability, and long-term network investment protection.
Product Name: AT-MC302XL
Model / Series: Allied Telesyn Fast Ethernet Media Converter Series
Article Number: AT-MC302XL (Part No. 617-00275-05)
Manufacturer: Allied Telesyn International Corp.
Product Type: MM Fiber MT-RJ to UTP Media Converter
Description: The Allied Telesyn AT-MC302XL is a compact, standalone or rack-mountable Fast Ethernet media converter designed to extend the reach of twisted-pair (UTP) networks over multimode or singlemode fiber optic cabling. It provides seamless conversion between 100Base-TX copper and 100Base-FX fiber interfaces, supporting both full- and half-duplex operation modes.
This converter is part of Allied Telesyn’s comprehensive line of network connectivity solutions, engineered for reliable, high-performance data transmission in enterprise, industrial, and campus network environments.
2. Key Features
- Media Conversion: Converts 100Base-TX (UTP) to 100Base-FX (fiber optic) for extended network distances.
- Fiber Interface: Supports multimode and singlemode fiber connections with MT-RJ connectors.
- Auto-Negotiation: Automatically detects and configures full- or half-duplex operation when connected to Fast Ethernet switches supporting auto-negotiation.
- “Missing Link” Function: Provides real-time link status feedback to network management systems, enabling redundancy and fault detection. If a fiber link fails, the converter signals the switch to activate a backup path.
- Link Test Function: Allows verification of fiber link integrity without specialized test equipment.
- MDI/MDIX Auto-Crossover: Built-in switch enables direct connection to PCs, hubs, or switches using standard twisted-pair cables.
- Standalone or Rack-Mount Operation: Can be used individually with an external power supply or installed in a 19” rack chassis accommodating up to 12 converters with shared power.
- LED Indicators: Front panel LEDs display power, link status, data reception, and test mode for easy diagnostics.
- Wide Operating Range: Designed for 0°C to 50°C operation, suitable for standard office and controlled industrial environments.
- Lifetime Warranty: Allied Telesyn provides an unlimited functional warranty and free technical support.
3. Technical Specifications
Physical Dimensions:
- Width: 105 mm
- Depth: 95 mm
- Height: 25 mm
- Weight: 294 g
Environmental Conditions:
- Operating Temperature: 0°C to +50°C
- Storage Temperature: -20°C to +80°C
- Relative Humidity: 5% to 80% (non-condensing)
Power Requirements:
- External Power Supply (auto-ranging)
- Input Voltage: 12 V DC ±5%
- Power Consumption: 6 W (max.)
- Current Draw: 0.5 A
Mechanical / Electrical Certifications:
- EMC: FCC Class A, IC Class A
- Safety: UL, CSA, TÜV, IEC 825-1
- CE Compliant
Optical Characteristics (Multimode 100FX):
- Wavelength: 1300 nm (typical), range 1200–1300 nm
- Receiver Sensitivity: -34.5 dBm
- Maximum Optical Output Power: -14 dBm
Optical Characteristics (Multimode 100SX):
- Wavelength: 830 nm (typical), range 810–850 nm
- Receiver Sensitivity: -30 dBm
- Maximum Optical Output Power: -12 dBm
Optical Characteristics (Singlemode 100BaseFX):
- 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
- Optical Output Power: Typical -3 dBm (range -5 to 0 dBm)
Twisted Pair Interface (100Base-TX):
- Differential Output Voltage: 950–1050 mV (typical 980 mV)
- Overshoot Voltage: Max 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: Max 0.5 ns (typical 0.4 ns)
Transmission Performance:
- Round Trip Delay: 0.4 µs (maximum)
- Bit Error Rate (BER): < 10⁻⁹
Maximum Cable Distances:
- Twisted Pair (Cat 5): 100 m
- Fiber Multimode (Full Duplex): 2000 m
- Fiber Multimode (Half Duplex): 412 m
- Fiber Singlemode (Full Duplex): 15 km
- Fiber Singlemode (Half Duplex): 412 m
- Fiber Singlemode Long Haul (Full Duplex): 40 km
- Fiber Singlemode Long Haul (Half Duplex): 412 m
4. Functionality
The AT-MC302XL operates as a transparent media converter between copper-based Ethernet and fiber optic networks. It automatically detects the link type and negotiates the optimal duplex mode. The device regenerates and converts electrical Ethernet signals into optical signals for transmission over fiber, and vice versa.
Use Cases and Applications:
- Extending LAN segments beyond the 100-meter copper limitation.
- Connecting remote buildings or network segments via fiber.
- Integrating fiber backbones with copper-based switches or servers.
- Providing redundant fiber links in mission-critical environments.
- Suitable for enterprise networks, campus infrastructures, and industrial automation systems.
Compatibility:
- Fully compliant with IEEE 802.3u 100Base-TX/100Base-FX standards.
- Compatible with Fast Ethernet switches, hubs, and network interface cards.
- Supports both multimode and singlemode fiber types with MT-RJ connectors.
5. Components & Accessories
Included Items:
- AT-MC302XL Media Converter Unit
- External 12 V DC Power Adapter
- User Documentation
Optional Accessories:
- 19” Rack-Mount Chassis (holds up to 12 converters)
- Redundant Power Supply Module for chassis installations
- Fiber patch cables (multimode or singlemode)
- UTP Category 5 patch cables
Front Panel Indicators:
- Power: Indicates converter power status.
- Link (2): Shows valid link on fiber and copper ports.
- Receive (2): Indicates data reception activity.
- Normal/Test: Selects between normal operation and fiber link test mode.
6. Installation & Setup
Requirements:
- Standard 100Base-TX Ethernet device (switch, hub, or NIC)
- Appropriate fiber optic cabling (multimode or singlemode)
- Power source (12 V DC external adapter or chassis power supply)
Mounting Options:
- Standalone: Operates independently using the included external power supply.
- Rack-Mount: Up to 12 converters can be installed in a 19” chassis for centralized power and management.
Configuration:
- Plug-and-play installation; no software configuration required.
- Auto MDI/MDIX eliminates the need for crossover cables.
- Link Test mode can be activated to verify fiber integrity before deployment.
Setup Procedure:
1. Connect the UTP port to the Ethernet device using a Cat 5 cable.
2. Connect the fiber port to the corresponding fiber network segment.
3. Apply power via the external adapter or chassis.
4. Verify link and activity LEDs for proper operation.
7. Performance & Capabilities
Speed: 100 Mbps (Fast Ethernet)
Duplex Modes: Full and Half Duplex (auto-negotiated)
Distance Capability: Up to 40 km (singlemode long haul)
Efficiency: Low power consumption (6 W max)
Latency: Minimal (0.4 µs round trip delay)
Error Rate: < 10⁻⁹ BER ensures high data integrity
Reliability: Continuous operation within specified temperature and humidity ranges
Limitations:
- Designed for Fast Ethernet (100 Mbps) only; not compatible with Gigabit Ethernet.
- Fiber distance depends on cable type and duplex mode.
8. Standards & Compliance
Network Standards:
- IEEE 802.3u 100Base-TX / 100Base-FX
Safety and EMC Compliance:
- UL (Underwriters Laboratories)
- CSA (Canadian Standards Association)
- TÜV (Technischer Überwachungsverein)
- IEC 825-1 (Laser Safety)
- FCC Class A (Electromagnetic Compatibility)
- IC Class A (Industry Canada)
- CE Mark (European Conformity)
Environmental Compliance:
- RoHS and WEEE compliant (depending on production year)
These certifications ensure the AT-MC302XL meets international safety, electromagnetic, and optical emission standards for professional networking equipment.
9. Additional Information
Warranty:
Allied Telesyn provides an unlimited functional warranty for the AT-MC302XL, ensuring long-term reliability and peace of mind.
Technical Support:
Free lifetime technical support is available through Allied Telesyn’s regional offices and online resources.
Maintenance:
- No moving parts; minimal maintenance required.
- Periodic inspection of fiber connectors recommended to maintain optimal signal quality.
- Firmware updates are not required, as the device operates on fixed hardware logic.
Service and Replacement:
- Hot-swappable when used in rack chassis.
- Replacement units available through Allied Telesyn distributors.
Manufacturer Contact Information (EU Offices):
- United Kingdom: 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, Z.A. de Courtaboeuf, 91952 Les Ulis Cedex
- Italy: Via Anna Kuliscioff 31, 20152 Milano
- Spain: Orense 85, 28020 Madrid
Website: [www.alliedtelesyn.com](http://www.alliedtelesyn.com)
Summary
The Allied Telesyn AT-MC302XL is a robust, high-performance Fast Ethernet media converter engineered to bridge copper and fiber network segments efficiently. With support for multimode and singlemode fiber up to 40 km, automatic duplex negotiation, and diagnostic features like “Missing Link” and Link Test, it ensures reliable connectivity and simplified troubleshooting. Its flexible deployment options—standalone or rack-mounted—make it ideal for enterprise, campus, and industrial network infrastructures requiring extended reach and dependable performance.
Built to meet stringent international standards and backed by a lifetime warranty, the AT-MC302XL exemplifies Allied Telesyn’s commitment to quality, reliability, and long-term network investment protection.
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