Juniper M120 - M120 PICs Supported

4-port PIC:
■
Connector: Two-pair, Category 5 unshielded twisted-pair connectivity through an RJ-45
connector
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Pinout: MDI noncrossover
8-port PIC:
■
Connector: MT-RJ female
■
FX optical interface—see Table 14 on page 59
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
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.
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
58 ■ Fast Ethernet PICs
M120 Internet Router PIC Guide