52 6820 / 6820EVS Manual P/N LS10144-001SK-E:C  09/28/2017
Figure 4.37  5880 Board Layout 
4.11.4  Dry Contact Wiring
The 8 input circuits on the 5880 board are for monitoring switch inputs-any type of switch supported by the control panel can be used 
with the 5880. For example, you can use a 5880 to monitor pull stations, water flow, tamper, reset, or silence switches.
Wire dry contacts as shown in Figure 4.38. Notice grouping of terminals; power terminals are shared by two inputs.
Figure 4.38  Dry Contact Wiring