Cisco Cisco Prisma II ICIM Installation Guide

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Installation 

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Continued 

A module configured as a slave normally has its output turned off or disabled. When 

a critical alarm occurs in the master module, the master turns off and the slave 

module turns on. To make that happen, the ALARM OUT contacts from the master's 

slot must be wired to the ALARM IN contacts on the slave 's slot. Once those 

contacts are wired, care must be taken to ensure that the master and slave modules 

don't change slots (otherwise the ALARM IN and ALARM OUT connectors will 

need to be rewired). 
Note that any device configured as a master ignores its ALARM IN contacts. 
One way to verify proper wiring and configuration is to simply unplug the master 

device and observe that the slave device turns on.