User's Manual

D ESCRIPTION OF H ARDWARE
1-5
Description of Hardware
1000BASE-T Ports
These ports are RJ-45 ports that operate at 10 Mbps, 100 Mbps and
1000 Mbps, full and half duplex. Because all ports on this switch support
automatic MDI/MDI-X operation, you can use straight-through cables for
all network connections to PCs or servers, or to other switches or hubs.
(See “1000BASE-T Pin Assignments” on page B-4.)
Each of these ports support auto-negotiation, so the optimum
transmission mode (half or full duplex), and data rate (10, 100, or
1000 Mbps) can be selected automatically. If a device connected to one of
these ports does not support auto-negotiation, the communication mode
of that port can be configured manually.
Each port also supports IEEE 802.3x auto-negotiation of flow control, so
the switch can automatically prevent port buffers from becoming
saturated.
SFP Slots
The Small Form Factor Pluggable (SFP) transceiver slots are shared with
four of the RJ-45 ports (Ports 21~24). If an SFP transceiver (purchased
separately) is installed in a slot and has a valid link on the port, the
associated RJ-45 port is disabled.