Basic Timing Control Of Multiple Relays For Fire Station Alerting System

You can just use delay. When you detect a signal on pin 2 use digitalWrite to set your two outputs LOW. Delay for five seconds then set the bells back to high. Delay for 115 seconds, set the led relay high.

This method is useless if you need the arduino to be doing other stuff at the same time, but for your stated requirement, it will do the job.