one coordinator to many(3) routerxbee communication with different pin control of every router

i am trying to glow led on DIO1 pin of 1st router and buzzer also on DIO1 pin of 2nd router at different time.

but when i am giving signal to glow only to led , other router is also sensing that signal and buzzer beeps and vice versa.

what settings should be changed in xbee to detect the both router xbee differently by coordinator??

Very simply, use DIO 2 for the buzzer instead of DIO 1.

Are you using broadcast or unicast addressing for sending out data? If you broadcast your command than it is normal that both routers are reacting.