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■Autosensing full-duplex and half-duplex modes
■Virtual Router Redundancy Protocol (VRRP)
■802.1Q virtual LANs (VLANs)
■Circuit cross-connect (CCC) VLAN
Software features
4-port PIC:
■Connector: Two-pair, Category 5 unshielded twisted-pair connectivity through an RJ-45
connector
■Pinout: MDI noncrossover
8-port PIC:
■Connector: MT-RJ female
■FX optical interface—See Table 11 on page 48
12-port PIC:
■Connector: One very High Density Connector Interface (VHDCI) to RJ-21 cable that
connects to an RJ-45 patch panel
Cables and connectors
Status LED, one bicolor:
■Off—PIC ports not enabled
■Green—PIC is operating normally
■Red—PIC has an error or failure
4-port PIC—One pair of port LEDs:
■Link LED—If green, the port is online; if there is no light, the port is down
■RX LED—If flashing green, the port is receiving data; if there is no light, the port might
be on, but is not receiving data
8-port PIC—one pair of port LEDs per port:
■Port link LED—If green, the port is online; if there is no light, the port is down
NOTE: The Link LED remains lit on the 8-port PIC when the port is down.
■Port RX LED—If flashing green, the port is receiving data; if there is no light, the port
might be on, but is not receiving data
12-port PIC—one port LED per port:
■Green—100-Mbps link established
■Flashing green—100-Mbps activity
■Yellow—10-Mbps link established
■Flashing yellow—10-Mbps activity
■Off—No link present
NOTE: The port LEDs remains lit on the 12-port PIC when the ports are down.
LEDs
Fast Ethernet PICs ■47
Fast Ethernet PICs