3Com ProCurve E4500-48 Getting Started Manual

Also see for Switch 4500 PWR 26-Port: Getting started Getting started Getting started guide Configuration guide Datasheet

Contents

Switch 4500 — Front View Detail 1510BASE-T/100BASE-TX PortsThe Switch 4500 has 24 or 48 auto-negotiating 10BASE-T/100BASE-TXports configured as Auto MDIX (cross-over). These ports automaticallyprovide the appropriate connection. Alternatively, you can manually setthese ports to 10BASE-T half-duplex, 10BASE-T full0-duplex, 100BASE-TXhalf-duplex or 100BASE-TX full-duplex. The maximum segment length is100 m (328 ft) over Category 5 twisted pair cable.Gigabit Ports Switch 4500 10/100 Ethernet models support two simultaneous Gigabitconnections. Each switch has four Gigabit ports, arranged in two pairscalled “dual-personality combo port pairs.” Only one port in each paircan be activeat a time.The paired ports for the Switch 4500 26 Port and PWR 26 Port are:■ 25 and 27■ 26 and 28The paired ports for the Switch 4500 50 Port and PWR 50 Port are:■ 49 and 51■ 50 and 52By default, the ports are enabled as follows for the 26-Port switches:■ Port 25 = active; Port 27 = inactive■ Port 26 = active; Port 28 = inactiveBy default, the ports are enabled as follows for the 50-Port switches:■ Port 49 = active; Port 51 = inactive■ Port 50 = active; Port 52 = inactiveTo change which port is active, issue the undo shutdown command onthe inactive port. This will enable the previously inactive port and disableits pair. Issuing this command will cause the switch to reboot.A Gigabit connection can be either copper-based 1000Base-T orSFP-based fiberoptic connection. On the Switch 4500 10/100 26 Portunit, there are two SFP slots and two 1000Base-T ports. On the Switch4500 PWR 26 Port, 50 Port, and PWR 50 Port models all the physicalGigabit ports are SFP slots.