Allied Telesis AT-MMC200/LC-960 10/100TX to 100FX Multimode LC Media & Rate Converter
Overview
The Allied Telesis AT-MMC200/LC-960 is a standalone media and rate converter that bridges 10/100BASE-TX copper infrastructure to 100BASE-FX multimode fiber using an LC connector interface. The "-960" designation identifies the multi-region power supply variant, which ships with a universal-input PSU suitable for international deployments without requiring a separate power adapter. TAA compliance makes this unit eligible for U.S. federal procurement programs and projects governed by the Trade Agreements Act — a hard requirement on many government network bids. If you are extending a copper LAN segment across a building riser or linking a copper-only switch port to a fiber backbone, this converter handles the electrical-to-optical handoff transparently: no reconfiguration of the upstream switch required. The AT-MMC200/LC-960 is the right pick when you need a dedicated plug-in-and-forget unit rather than a chassis-based card, and when your fiber plant uses multimode cable terminated in LC connectors — the most common multimode termination in structured cabling installed after roughly 2000.
Compatibility
This converter operates as a standalone IEEE 802.3 device and is media-agnostic at the network layer — any 10/100BASE-TX switch port or NIC feeds the copper side. On the fiber side, compatibility is determined by the fiber plant: this unit requires multimode fiber (OM1, OM2, or OM3/OM4 at 100 Mbps) terminated in LC connectors. It will not operate on singlemode fiber — for singlemode LC runs, the AT-MMC200/LC-SC or singlemode-designated variants apply. The 100FX fiber port pairs with any 100BASE-FX-capable device: fiber uplink modules in network switches, Allied Telesis fiber switches, IP camera media converters on structured cabling runs, and NVR or server NICs with SFP-to-100FX adapters. This converter is also compatible with the Allied Telesis AT-MCR12 and AT-MCR12/SP chassis for rack-mount deployments — inserting this converter card into a chassis-based slot eliminates the need for a standalone power supply, making the -960 PSU relevant only for out-of-chassis tabletop use. For IP surveillance runs, this unit fits cleanly into fiber media converter deployments where a IP camera or access control panel connects via a copper tail to a fiber backbone segment.
Installation Notes
The multi-region PSU bundled with the -960 variant accepts a wide AC input range — confirm your outlet's plug type is compatible or have the appropriate IEC adapter on hand. The copper RJ-45 port is auto-sensing for speed (10/100) and duplex; no manual configuration is required for standard switch-to-converter links. Link and activity LEDs on both the copper and fiber ports provide immediate visual verification of layer-1 connectivity on both segments — critical when commissioning a fiber run before IP devices are installed. Multimode fiber insertion loss over the LC interface should be verified against the optical budget for the run length; 100BASE-FX multimode supports distances up to 2 km on OM1/OM2 at 100 Mbps, but actual link margin depends on connector quality, splice count, and bend losses in the installed cable plant.
