Carrier 17/19EX - Manual (Page 273)

Starter Management Module (SMM) ( Figure 52 )
Inputs
Inputs on strips J2 and J3 are a mix of analog and discrete (on/off) inputs. Application of the
machine determines which terminals are used. Always refer to the individual unit wiring diagram
for terminal numbers.
Outputs
Outputs are 24 vdc and wired to strip J1. There are 2 terminals used per output.
Click here for Figure 52 — Starter Management Module (SMM)