64Table 88 LED descriptionLED DescriptionLINK/ACT• On: Carrier signal has been received.• Flashing: Data is being received or/and transmitted.• Off: No carrier signal has been received.LP/AL• On: The interface is in a loopback.• Off: No loopback or alarm is present.• Flashing: An alarm indication signal (AIS), loss of frame alignment (LFA) signal,or remote alarm indication (RAI) signal is present.Transceiver modules, optical fibers, and connection methodsFor more information about transceiver modules, optical fibers, and the connection methods, see"Fiber port."CPOS (SDH/SONET) interface module• MIM-1CPOSMIM-1CPOS(E)/MIM-1CPOS(T)IntroductionThe MIM-1CPOS is short for the 1-port channelized SDH/SONET interface module. C stands forchannelized, and POS for Packet over SDH/SONET. MIM-1CPOS provides oneSTM-1/OC3-compliant multi-channel interface and support communication speeds up to 155.52Mbps.MIM-1CPOS has two models: MIM-1CPOS(E) for E1 system and MIM-1CPOS(T) for T1 system.MIM-1CPOS is inserted in a MIM slot of a modular router and communicates with the CPU throughthe PCI interface to receive and transmit data on STM-1 channelized POS interface. It supports:• Various types of transceiver modules.• Clear channel (unframed) E1 or T1• Fractional (framed) E1 or T1• Up to 256 64 kbps logical channelsInterface specificationsTable 89 Interface specificationsItem MIM-1CPOS(E)/MIM-1CPOS(T)Connector SFP/LCNumber of Connectors 1
