Olicom CrossFire 8730 Installation Manual page 13

Token-Ring Ports
•
Twenty shielded RJ-45 connectors for Token-Ring connection.
— Support for the IBM Cabling System via 150 ohm, shielded twisted-pair
(STP); or 100/120 ohm unshielded twisted-pair (UTP) via Category 3, 4,
or 5 cables.G
— These ports allow half-duplex (HDX) or full-duplex (FDX) connections to
other switches, hubs, or end nodes.
•
The switch will automatically sense what type of Token-Ring connection is
being employed on each of its Token-Ring ports. The connection can be:
— to a shared-media segment via a Token-Ring concentrator (Station mode)
— to another Token-Ring switch
— operating at 4 Mbps or at 16 Mbps
— to a dedicated-media segment, directly to a Token-Ring LAN station
operating in half-duplex or full-duplex mode (Port mode)
The switch will automatically configure each port to operate at the highest possible
capability level. No special crossover cables are required for Token-Ring stations
on dedicated-media segments or for switch-to-switch connections; the same
straight-through cabling is used regardless of the type of connection. This auto-
sense/auto-configure capability of the switch can be overridden by explicit console
management.
Any of the twenty Token-Ring ports can be configured as a TokenProbe port. It is
used to monitor any one of the other Token-Ring ports. The activity can be traced
by a special passive network analyzer attached to the TokenProbe port.
Fast Ethernet Ports
•
Four standard RJ-45 connectors for Fast Ethernet connection
— Support standard 100BASE-TX cabling.
— These ports allow half-duplex (HDX) or full-duplex (FDX) connections to
other switches, hubs, or end nodes.
— Automatic speed detection.
— 10/100 Mbps.
The four Fast Ethernet ports can connect to a standard Fast Ethernet adapter or can
act as trunk ports and carry traffic from all of the 63 VLANs it is possible to
configure in the switch. This is achieved using standard IEEE 802.1Q VLAN frame
tagging (IEEE=Institute of Electrical and Electronics Engineers). For each VLAN,
a virtual port is created which behaves much like an ordinary port.
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2
3
Introduction