Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 

Fast Ethernet PICs (M120 Router)

 
Figure 1: 4-Port Fast Ethernet PIC
4-Port Fast Ethernet PIC
Figure 2: 8-Port Fast Ethernet PIC
8-Port Fast Ethernet PIC
Figure 3: 12-Port Fast Ethernet PIC
12-Port Fast Ethernet PIC
Figure 4: 48-Port Fast Ethernet PIC
48-Port Fast Ethernet PIC
Figure 5: VHDCI to RJ-21 Cable
VHDCI to RJ-21 Cable

Software release

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

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

    End-of-life (see notification PSN-2013-03-891)

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

    End-of-life (see notification PSN-2013-03-891)

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

    End-of-life (see notification PSN-2009-04-327)

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

For information on which FPCs support these PICs, seeM120 PIC/FPC Compatibility .

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:

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 OS Network Interfaces Library for Routing Devices.