Why are the configuration settings for the same type of alarms different on two identical models of fire and security alarms?

Question

Electronics

The fire and security alarm device "Granit" is installed in the boiler room. The same one is installed in another boiler room. Peripheral sensors are connected according to the same scheme.
But there is only one difference. In the settings of the microswitches (configuration) In order for the devices to react equally to the same signals on one device, for example, 2 and 5 are turned on, and on the other 3 and 7 dip switches. What is the possible confusion here?