AppendixA Technical Specifications
Product Architecture
A-20
Cisco 12404 Internet Router Installation and Configuration Guide
OL-11636-01
Line cards installed in the Cisco 12404 router support online insertion and
removal, which means you can remove and replace (hot-swappable) a line card
while the router remains powered on.
Caution To ensure adequate airflow through the card cage, empty card slots must have a
card blank installed.
Consolidated Switch Fabric Status
An OK/Fail pair of LEDs are provided to indicate the status of the Alarm MBus
and Fabric MBus. The green light indicates that the MBus module is operating
properly. The Fail light indicates that the MBus has detected some error, in itself,
or with the MBus power supply.
Power Entry Module Monitoring
The CSF and alarm card provides monitoring of the PEM. Tabl e A-11 provides
alarm definitions.

P8 Alarm Relay Contact Connector

This connector is a standard DB-9 connector. The relay interface is rated at max
2A, 60V or 50VA, whichever is greater.
TableA-11 CSF and Alarm Monitoring Status Definitions
Status Definition
Power Fail Power is not being provided to the power supply
Power Fault A fault exists in the power supply
Missing Module One of the PEMs is not present
Voltage Monitor A voltage monitor signal in the range of 0 to 4.096 V
is provided to the MBus controller to measure the
power supply output voltage level
Current Monitor A current monitor signal in the range of 0 to 4.096 V
is provided to the MBus controller to measure the
power supply output current level.