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    Tripp Lite N784-MDC-1STST Fiber Optic 100 Mb ST to 100 Mb ST Mode Converter - 1310 nm Compatible - Up to 10 km (6.2 mi.) - Black - Metal Box

    • 1310 nm Compatible
    • Up to 10 km (6.2 mi.)
    • LEDs Indicate Installation Performance and Diagnostic Functions
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    +
    Overview
    Specs
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    Customizes Your Network Extension over Fiber Optic CableThis network mode converter works with a variety of ST cables to convert a multimode fiber signal to a singlemode fiber optic signal and extend it to a second network device. The mode conversion allows your network connection to reach hubs, switches and other devices located up to 10 kilometers ( 6.2 miles) away. The N784-MDC-1STST is ideal for network engineers migrating toward higher-density data centers. LEDs Indicate Installation Performance and Diagnostic FunctionsEasy-to-read LEDs on the side of the mode converter indicate essential status information, including network speed and connection, signal diagnostics and unit power.

    LEDs indicate when a fiber cable has been severed or another cause of disruption in service has occurred. Protective Metal Housing Built to Withstand a Variety of HazardsThe rugged metallic case is designed to operate in temperatures ranging from 0 to 70 degrees Celsius (

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Limited Warranty period (parts): 3 years
    • Limited Warranty period (labor): 3 years
    • Read full details

    Return Policies

      We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2025 and December 31, 2025 you will have until January 31, 2026 to return your product.

    • Return for refund until: January 31, 2026
    • Return for replacement until: January 31, 2026
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    The Tripp Lite N784-MDC-1STST is a 100 Mbps ST-to-ST fiber mode converter that converts multimode fiber to singlemode fiber for links up to 10 km (6.2 miles), making it suitable for network teams extending Fast Ethernet between compatible switches, hubs, or other devices.

    Recommended For

    • Network technicians connecting a 100 Mbps multimode ST fiber segment to a singlemode ST segment, where the link distance and fiber specifications match the converter.
    • IT teams maintaining legacy 100 Mbps networks with duplex ST fiber connectors that need to extend a compatible multimode-to-singlemode fiber connection over a longer run.
    • Facilities or network integrators replacing or linking fiber equipment where ST connectors are already installed and converting between multimode and singlemode fiber is required.
    • Technicians commissioning or troubleshooting a compatible fiber link who can use the unit’s status LEDs to check power, fiber signal, and link activity.

    Real-World Use Scenarios

    • When a 100 Mbps network link must cross between buildings over an existing fiber route, use the converter at a compatible singlemode-to-multimode transition; the link can span beyond typical copper Ethernet distances if the fiber, optics, and endpoints are compatible.
    • When a network’s existing ST-terminated fiber is multimode but the next section of the route is singlemode, use the converter to bridge the fiber-mode mismatch and avoid replacing the entire fiber path, provided the 100 Mbps link and optical requirements match.
    • When connecting legacy ST fiber equipment to a newer fiber route, use this converter as the mode-conversion point; it can help preserve the installed ST-fiber segment instead of requiring a wholesale cabling change.
    • When extending a 100 Mbps fiber link between network closets or equipment areas, use the converter where singlemode and multimode fiber sections meet; expect fiber-to-fiber mode conversion, not conversion to an RJ45 copper Ethernet port.

    Spec Summary

    AttributeValue
    Best ForConnecting compatible hubs, switches, and other devices over an optical link
    Optical Link SpecificationsST duplex optical connection, 100 Mbps, with a range of up to 10 km
    Interface And ChannelsOptical interface with 1 channel and 4 pins
    Power And Included AccessoriesExternal power supply with 100–240 V, 50/60 Hz, 0.35 A input and 5 V, 2 A output; 4.5 ft (1.4 m) cord and four international plug adapters
    Model IdentifiersTripp Lite N784-MDC-1STST