Cisco Systems Cisco 12816 Manuale Utente
1-23
Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
Chapter 1 Product Overview
Alarm Card, Line Card, and Rout Processor Overview
Figure 1-12 Alarm Card Components and LEDs
Line Cards
Up to 15 Cisco 12000 series line cards can be installed in the routers upper and
lower card cages to support a variety of physical network media. Ports and
connectors on the line card front panels provide interfaces for external
connections. Line cards communicate with the RP and exchange packet data with
each other through the switch fabric cards.
lower card cages to support a variety of physical network media. Ports and
connectors on the line card front panels provide interfaces for external
connections. Line cards communicate with the RP and exchange packet data with
each other through the switch fabric cards.
Caution
Any unoccupied card slot in the upper and lower card cages must have a blank
filler panel installed to meet electromagnetic compatibility (EMC) requirements
and to ensure proper air flow through the chassis. Also, if the front panel of a line
card does not completely fill the card slot opening, a narrow card filler panel must
be installed to meet the EMC requirements.
filler panel installed to meet electromagnetic compatibility (EMC) requirements
and to ensure proper air flow through the chassis. Also, if the front panel of a line
card does not completely fill the card slot opening, a narrow card filler panel must
be installed to meet the EMC requirements.
A cable management bracket on the front panel of each line card helps to organize
the interface cables connected to that line card.
the interface cables connected to that line card.
ACO/L
T
ALARM
CSC
0
FAIL
1
0
1
2
ENABLED
ENABLED
FA
IL
CRITICAL
MAJORMINOR
SFC
ALARM
26867
Pin 25
Audio alarm
cutoff switch
Pin 1
Handle
Critical, major, and
minor alarm LEDs
Clock and scheduler card
and switch fabric card LEDs
ENABLED
FAIL
CSC
0
FAIL
1
0
1
2
ENABLED
CRITICAL
MAJORMINOR
SFC