Tyco SafeLINC 4100U Manual Do Utilizador

4-3

 
 

The local mode TIC contains an RUI input, port for connecting to other transponder 
modules, and terminal block for connecting to an optional Local Mode Controller. Local 
Mode Controllers are mounted remotely from the transponder. Installation instructions are 
supplied with the controller.  
 
Local mode operation allows a TIC to provide life safety operations in the event of a 
communication loss with the master controller. More specifically, this provision means 
that fire alarm inputs and outputs within the transponder cabinet can still work in a limited 
capacity to allow continued functioning of local initiating devices and notification 
appliances connected to the TIC. Local mode is considered a “degraded” mode of 
operation because full fire alarm system functionality is not guaranteed. 
 
Because the TIC is a slave module that occupies an RUI address, it can indicate a trouble 
condition to the master controller in the event of a hardware failure. When local mode is 
initiated, all slave devices locally connected to the TIC are notified by the TIC that local 
mode is taking effect. From that point until communication is restored to the master 
controller, the TIC  
”group-polls” all connected local slaves, and the slaves respond only in the event of an 
alarm input activation. Other status changes, including troubles, are not reported.