Chapter 1 Product Overview
Alarm Card, Line Card, and Rout Processor Overview
1-22
Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
Some of the functions that the alarm cards provide are:
• Supplies +5 VDC to the MBus modules on router components (see AC and
DC Power Subsystems, page 1-4).
• Displays alarm severity levels (critical, major, and minor) detected by the
system through the MBus.
• Provides connections for an external alarm system.
• Displays the status of the alarm cards, clock scheduler cards, and switch
fabric cards.
The following components and LEDs are on the front panel of the alarm card
(Figure 1-12):
• Critical, Major, and Minor LEDs that identify system level alarm conditions.
• A switch to shut off an audio alarm.
• Cable connection for an external alarm (labeled Alarm)
• Alarm card LEDs:
–
ENABLED (green)—The alarm card is operational and functioning
properly.
–
FAIL (yellow)—The alarm card in that slot is faulty.
• A pair of status LEDs that correspond to each of the 5 card slots in the switch
fabric card cage (2 CSCs and 3 SFCs):
–
ENABLED (green)
On—The card installed in that slot is operational and functioning
properly.
Off—Either the slot is empty or the card installed in that slot is faulty.
–
FAIL (yellow)—The card in that slot is faulty.