10Base-T/ 100Base-Tx/ 1000Base-T Ports; Dual Personality Sfp Ports - 3Com 3812 - SuperStack 3 Switch Getting Started Manual

14 C 1: I S S 3 S 3812, S 3824, S 3848
HAPTER NTRODUCING THE UPER TACK WITCH WITCH AND WITCH
Figure 3 Switch 3848 — front view
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 10BASE-T/100BASE-TX/1000BASE-T ports have RJ-45 connectors and
100BASE-TX/ are configured as Auto MDIX (cross-over).
1000BASE-T Ports
The default state for these ports is auto-negotiation enabled, where the
speed, duplex and flow control modes of a link are automatically
detected to provide the highest available bandwidth with the link partner.
Alternatively, auto-negotiation can be disabled. These ports can be
manually configured to 10 Mbps half duplex, 100 Mbps half duplex,
10 Mbps full duplex or 100 Mbps full duplex. It is not possible to
manually configure a 1000 Mbps link as auto-negotiation is mandatory in
the 1000 Mbps standard. If auto-negotiation is disabled, Auto MDIX
cannot function and the ports are fixed as MDIX (cross-over) mode.
If auto-negotiation is disabled on a 1000 Mbps port, the speed will drop
to the highest available speed. By default this is 100 Mbps.
Dual Personality SFP The four Dual Personality SFP (Small Form Factor Pluggable) ports support
Ports fiber Gigabit Ethernet short-wave (SX), long-wave (LX) and long-haul
(LH70) transceivers in any combination. This offers you the flexibility of