3Com 3C17709 Getting Started Manual

Also see for SWITCH 4050: Product guide Quick reference guide Datasheet Datasheet

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3Com 3C17709 Getting Started Manual Manual pdf 15 page image

3Com Switch 4050 and 4060 — Front View Detail 151000BASE-SX Ports The auto-negotiating 1000BASE-SX ports have MT-RJ connectors.The default state for these ports is auto-negotiation enabled, where thespeed, duplex and flow control modes are negotiated. As the speed andduplex modes are fixed by the media type, only the flow control isnegotiated with the link partner. Alternatively, auto-negotiation can bedisabled and the flow control setting can be manually configured.10BASE-T/100BASE-TX/1000BASE-T PortsThe 10BASE-T/100BASE-TX/1000BASE-T ports have RJ-45 connectors andare configured as Auto MDIX (cross-over).The default state for these ports is auto-negotiation enabled, where thespeed, duplex and flow control modes of a link are automaticallydetected to provide the highest available bandwidth with the link partner.Alternatively, auto-negotiation can be disabled. These ports can bemanually configured to 10 Mbps half duplex, 100 Mbps half duplex,10 Mbps full duplex or 100 Mbps full duplex. It is not possible tomanually configure a 1000 Mbps link as auto-negotiation is mandatory inthe 1000 Mbps standard. If auto-negotiation is disabled, Auto MDIXcannot function and the ports are fixed as MDIX (cross-over) mode.If auto-negotiation is disabled on a 1000 Mbps port, the speed will dropto the highest available speed. By default this is 100 Mbps.GBIC Ports The 6 GBIC ports support fiber Gigabit Ethernet short-wave (SX),long-wave (LX) and long-haul (LH70) GBIC transceivers in anycombination. This offers you the flexibility of using GBIC transceivers toprovide connectivity between the Switch and remote 1000 Mbpsworkgroups or to create a high capacity aggregated link backboneconnection.The default state for these ports is auto-negotiation enabled, where thespeed, duplex and flow control modes are negotiated. As the speed andduplex modes are fixed by the media type, only the flow control isnegotiated with the link partner. Alternatively, auto-negotiation can bedisabled and the flow control setting can be manually configured.Console Port The console port allows you to connect a terminal and perform remote orlocal out-of-band management. The console port uses a standard nullmodem cable and is set to autobaud (up to a maximum of 19,200 baud),8 data bits, no parity and 1 stop bit.