2 SMART INTERFACE C ARDSMSR series routers adopt modular design and support a wide range of optionalsmart interface cards (SICs) and double smart interface cards (DSICs). A SICinterface card occupies one SIC slot of an MSR router and a DSIC interface cardoccupies two SIC slots of a router. The SIC/DSIC series interface cards provideabundant interfaces, such as synchronous/asynchronous serial interface, Ethernetinterface, E1/T1, ISDN BRI/PRI, ADSL, audio interface, Layer 2 switching interface,and so on.Among this series interface cards, the Layer 2 switching interface cards (SIC-4FSWand DSIC-9FSW) each have a corresponding PoE-capable one, which can provide-48 VDC power to remote powered devices (PDs, such as IP phone, WLAN AP,network camera) through straight-through cables as long as installed in a PoErouter.n For H3C MSR 20-40 and MSR 30 and 50 series routers which have four SIC slots, a4FSW/1FEF/1FEA/1GEC/1ADSL/1ADSL-I interface card can only be installed in slot2 or slot 4.SIC-1FEAIntroduction 1-port 10Base-T/100Base-TX Ethernet interface card (SIC-1FEA), in which FEstands for Fast Ethernet and A is used to differentiate SIC-1FEA from the 1FEmodule. SIC-1FEA is used to implement the communication between Routers andLANs. It supports:■ Effective transmission distance of 100 meters with category-5 twisted paircables;■ Operating speeds of both 100 Mbps and 10 Mbps and autosensing;■ Both full duplex (in common use) and half-duplex operating modes.n For H3C MSR 20-40 and MSR 30/50 series routers, a SIC-1FEA interface card canonly be installed in SLOT2 or SLOT4.Interface Attributes The interface attributes of SIC-1FEA are given in the following table:Table 1 Interface attributes of SIC-1FEAAttribute SIC-1FEAConnector type RJ-45Interface type MDINumber of connectors 1Cable type Straight-through Ethernet cable