Johnson Controls IFC-2020

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Hardware Installation—Installing the

IFC-1010/2020

MPS-24

MPS-24B

MPS-24A

Normally

Closed

Normally

Open

System

Common

System Common

Terminal Connection

MPS-24A TB3-4

MPS-24B TB2-4

Syscomm

Relay Common

Figure 35: System Common Terminal Connection

Note: Relay contacts are specified in the NORMAL (no trouble

condition) state. The MPS-TR connects to any device with a

trouble IN and a trouble OUT.

Johnson Controls IFC-2020 - Page 54