Fast Ethernet PICs

Software features

Autosensing full-duplex and half-duplex modes

 

Virtual Router Redundancy Protocol (VRRP)

 

802.1Q virtual LANs (VLANs)

 

Circuit cross-connect (CCC) VLAN

Cables and connectors

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

LEDs

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.

Fast Ethernet PICs 47

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Image 47
Juniper Networks M20 manual Autosensing full-duplex and half-duplex modes