Allied Telesis AT-MMC200LX/ST-960 10/100TX to 100LX ST Single-Mode Mini Media Converter
Overview
The AT-MMC200LX/ST-960 is a TAA-compliant mini media and rate converter that bridges copper 10/100BASE-TX infrastructure to 100BASE-LX single-mode fiber with an ST connector interface, spanning distances up to 20 kilometers. This is the right device when you need to extend a Fast Ethernet segment across a campus backbone, between buildings, or into a remote IDF closet where pulling new copper is impractical. The compact form factor is designed for Allied Telesis media conversion chassis deployments, keeping wiring-closet footprint minimal in dense switching environments.
Compatibility
The AT-MMC200LX/ST-960 is designed for use with Allied Telesis media conversion chassis that accept the AT-MMC200 mini module series. On the fiber side, it connects to any 100BASE-LX-compliant single-mode ST-terminated equipment — including Allied Telesis switches, access points, and IP network devices with matching 100FX ST interfaces. The copper RJ-45 side auto-negotiates 10BASE-T or 100BASE-TX, making it compatible with standard Ethernet switches, NVRs, access control panels, and IP camera aggregation switches where fiber uplinks are required. Confirm your chassis model accepts the AT-MMC200 module format before ordering.
Installation Notes
Single-mode fiber at 20km requires OS1 or OS2 single-mode cabling terminated with ST connectors — multimode cable will not work at this reach. The ST connector style demands proper ferrule cleanliness; dirty connectors are the leading cause of link failures on long-haul single-mode runs. The module seats into a compatible Allied Telesis media conversion chassis; standalone operation outside a chassis is not supported by this form factor. TAA compliance makes this module procurement-eligible for U.S. federal and government projects subject to Trade Agreements Act requirements.
