56Transceiver modules, optical fibers, and connection methodsFor more information about transceiver modules, optical fibers, and the connection methods, see"Fiber port."ATM interface module• MIM-1ATM-OC3• MIM-1AE3• MIM-1AT3• MIM-IMA-4E1• MIM-IMA-8E1• MIM-IMA-4T1• MIM-IMA-8T1MIM-1ATM-OC3IntroductionThe 1-port ATM (Asynchronous Transfer Mode) 155 Mbps optical interface module (MIM-1ATM-OC3)provides ATM interfaces for routers and supports:• Two frame formats: SDH STM-1 and SONET OC-3• Scrambling in data transmission• Both line clock (when working as DTE interface), and internal clock (when working as DCEinterface)• Three types of test measures, that is, local cell loopback, local payload loopback, and remoteloopback.Interface specificationsTable 77 Interface specificationsItem DescriptionNumber of interfaces 1Connector SFP/LCInterface standard SONET OC-3/SDH STM-1Operating mode 155 Mbps
