14CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4200 FAMILY
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot be used as standard traditional telephone sockets, or to connect the unit to a traditional PBX or public telephone network. Only connect RJ-45 data connectors, network telephony systems, or network telephones to these sockets.
Either shielded or unshielded data cables with shielded or unshielded jacks can be connected to these data sockets.
10BASE-T/The Switch has 24 or 48 auto-negotiating 10BASE-T/100BASE-TX ports 100BASE-TX Ports configured as Auto MDIX (cross-over). While auto-negotiation is enabled,
these ports can automatically detect whether they need to operate in MDI or MDIX mode. Alternatively, you can manually set these ports to 10BASE-T half duplex, 10BASE-T full duplex, 100BASE-TX half duplex or 100BASE-TX full duplex. The maximum segment length is 100 m (328 ft) over Category 5 twisted pair cable.
10/100/1000BASE-TThe Switch has two auto-negotiating 10/100/1000BASE-T ports
Ports configured as Auto MDIX (cross-over). While auto-negotiation is enabled, these ports can automatically detect whether they need to operate in MDI or MDIX mode. These ports provide 10/100/1000 Mbps full duplex connections to other Gigabit Ethernet devices. Full duplex allows packets to be transmitted and received simultaneously which, in effect, doubles the potential throughput of a link. These ports require either straight-through or cross-over Category 5 cables with RJ-45 connectors at both ends. The maximum UTP cable length is 100 m (328 ft) over Category 5 cable.
The 10/100/1000BASE-T ports will auto-negotiate to the appropriate speed.
SFP Ports This section applies to the SuperStack 3 Switch 4200 28-Port only.
The two SFP (Small Form Factor Pluggable) ports support fiber Gigabit Ethernet short-wave (SX), long-wave (LX), long-haul (LH70) and copper (T) transceivers in any combination. This offers you the flexibility of using SFP transceivers to provide connectivity between the Switch and remote 1000 Mbps workgroups or to create a high capacity aggregated link backbone connection.
The SFP ports are capable of auto-negotiating flow control. As the speed and duplex modes are fixed by the media type, only the flow control is
