Software release

• 4-port: Junos OS Release 8.0R2 and later (Type 1)
• 8-port: Junos OS Release 8.0R2 and later (Type 1)
• 12-port: Junos OS Release 8.0R2 and later (Type 1)
• 48-port: Junos OS Release 8.0R2 and later (Type 2)

Note: These PICs are not supported in Junos OS Release 8.1R1.

Description

• 4 100Base-TX ports
• 8 100Base-FX ports
• 12 100Base-TX ports
• 48 100Base-TX ports
• Power requirement:
  • 4-port: 0.14 A @ 48 V (6.8 W)
  • 8-port: 0.26 A @ 48 V (12.5 W)
  • 12-port: 0.23 A @ 48 V (11 W)
  • 48-port: 0.69 A @ 48 V (33.3 W)

Hardware features

• High-performance throughput on each port at speeds up to 100 Mbps
• Source and destination Media Access Control (MAC) address filtering
• RMON EtherStats packet buffering
• 802.3 Ethernet standard compliant
• 4-port PICs support MTUs of up to 9,192 bytes; 8-port, 12-port, and 48-port PICs support MTUs of up to 1,532 bytes
• 4-port PICs support 1,024 802.1Q VLANs per port; 8-port, 12-port, and 48-port PICs support 16 802.1Q VLANs per port

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 Ethernet 10BASE, 100BASE, and 1000BASE Copper and Optical Specifications

12-port PIC:

• Connector: One very high density connector interface (VHDCI) to RJ-21 cable that connects to an RJ-45 patch panel

48-port PIC:

• VHDCI to RJ-21 cables that connect to an RJ-45 patch panel
• Four VHDCI connectors that each service 12 10/100 ports

Note: Each of the four connectors on a Fast Ethernet 48-port PIC can support a maximum of approximately 800 Mbps. However, this constitutes oversubscription. Use this PIC only in environments that can support this level of oversubscription.

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 remain lit on the 12-port PIC when the ports are down.

48-port PIC—does not have port LEDs. To check port status on a 48-port PIC, use the show interfaces fe-fpc/pic/port command. For more information about this command, see the Junos Network Interfaces Configuration Guide.