Datasheet

2-22
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 2 Common Control Cards
2.7.2 External Alarms and Controls
2.7.2 External Alarms and Controls
The optional AIC-I card provides input/output alarm contact closures. You can define up to 16 external
alarm inputs and four external alarm inputs/outputs (user configurable). The physical connections are
made using the MIC-A/P. The alarms are defined using CTC. For instructions, refer to the “Manage
Alarms” chapter in the Cisco ONS 15454 SDH Procedure Guide.
LEDs on the front panel of the AIC-I indicate the status of the alarm contacts: one LED representing all
the inputs and one LED representing all the outputs. External alarms (input contacts) are typically used
for external sensors such as open doors, temperature sensors, flood sensors, and other environmental
conditions. External controls (output contacts) are typically used to drive visual or audible devices such
as bells and lights, but they can control other devices such as generators, heaters, and fans.
You can program each of the sixteen input alarm contacts separately. Choices include:
• Alarm on Closure or Alarm on Open
• Alarm severity of any level (Critical, Major, Minor, Not Alarmed, Not Reported)
• Service Affecting or Non-Service Affecting alarm-service level
• 63-character alarm description for CTC display in the alarm log
You cannot assign the fan-tray abbreviation for the alarm; the abbreviation reflects the generic name
of the input contacts. The alarm condition remains raised until the external input stops driving the
contact or you unprovision the alarm input.
The output contacts can be provisioned to close on a trigger or to close manually. The trigger can be a
local alarm severity threshold, a remote alarm severity, or a virtual wire, as follows:
Table 2-18 AIC-I Card-Level Indicators
Card-Level LEDs Description
Red FAIL LED Indicates that the card’s processor is not ready. The FAIL LED is on during
reset and flashes during the boot process. Replace the card if the red FAIL
LED persists.
Green ACT LED Indicates that the AIC-I card is provisioned for operation.
Green/Red PWR A LED When green, indicates that a supply voltage within the specified range has
been sensed on supply input A. It is red when the input voltage on supply
input A is out of range.
Green/Red PWR B LED When green, indicates that a supply voltage within the specified range has
been sensed on supply input B. It is red when the input voltage on supply
input B is out of range.
Amber INPUT LED When amber, indicates that there is an alarm condition on at least one of the
alarm inputs.
Amber OUTPUT LED When amber, indicates that there is an alarm condition on at least one of the
alarm outputs.
Green RING LED The green RING LED on the local orderwire (LOW) side is flashing when a
call is received on the LOW.
Green RING LED The green RING LED on the express orderwire (EOW) side is flashing when
a call is received on the EOW.