2M46-04R Overview2M46-04R/2M46-04RDC User’s Guide1-3The 2M46-04R is a tabletop unit that can be installed in a standard19-inch rack using the supplied rack mounting hardware.The 2M46-04R has two ac power supplies. The power supplies load share50% (+/-5%) of the power required by the device. If one power supplyfails, the remaining power supply assumes the entire load of the devicewithout interruption to network traffic. Each power supply modulesupports its own ac input connection, which allows the user to connecteach power supply to a different ac power circuit.The 2M46-04RDC operates from two dc voltage power sources. Thepower supplies load share 50% (+/-5%) of the power required by thedevice. If one power supply fails, the remaining power supply assumesthe entire load of the device without interruption to network traffic. Eachpower supply module supports its own dc input connection, which allowsthe user to connect each power supply to a different dc power source.1.3.1 ConnectivityThe 2M46-04R has two front panel slots (ports 1 and 2) for optional FastEthernet Interface Modules to support an uplink to 100 Mbps FastEthernet backbones or a high speed connection to a local server. There arealso two HSIM slots for optional HSIMs to provide additionalconnectivity to various networking technologies.1.3.2 Full Duplex Switched EthernetThe optional Fast Ethernet Interface Modules can be configured tooperate in Full Duplex Switched Ethernet (FDSE) mode which providesup to 200 Mbps of throughput per interface.
