Hi,
You can connect 24 V, 60 A supply to Analog and Digital inputs.Both will work fine.
For the Digital input and Analog input, You need to consider only the maximum voltage rating.In the case of FMB 920 it's 32 Volt Maximum.
The amount of current will flow through the circuit is directly depends on the load. ( I = P/V )
For the digital output, the maximum current will be 0.5 A.
If you are using a 24 V Power supply for teltonika, the maximum watt of your load should be 12.
Thanks in advance
Naveen