iConverter 8927N-1 Media Converter Interface Device conforms to the Ethernet in the First Mile (EFM) fiber standards to support Fiber-to-the-X Metropolitan and Enterprise LAN networks. conforms to the Ethernet in the First Mile (EFM) fiber standards to support Fiber-to-the-X Metropolitan and Enterprise LAN networks. The GX/TM2 provides intelligent, securely managed service demarcation at the customer premises, offering Quality of Service and enhanced Bandwidth Control (rate-limiting) capabilities. The GX/TM2 features built-in Operations, Administration and Maintenance (OAM) with comprehensive performance monitoring, fault detection and provisioning. provides intelligent, securely managed service demarcation at the customer premises, offering Quality of Service and enhanced Bandwidth Control (rate-limiting) capabilities.