System Description - Output Functions
Part No.: 4418309_Rev09 Fusion4 MSC-L
Honeywell Installation & Operation Manual 3 - 57
3.9.5 Digital Output Electromechanical Relay (AC or DC)
3.9.5.1 Functional Description
The Digital Output Electromechanical Relay (DO EMR AC or DC) allows
the controller to switch DC signals or AC signals to control alarms and
other loads.
The two output terminals are “volt-free” contacts and require an external
power supply to drive a load.
The relay output contacts are effectively Single Pole Single Throw
(SPST) and are configurable through a jumper
1
to be either Normally
Open (NO) or Normally Closed (NC).
See FIGURE 3-34 illustrates the simplified block diagram of the DO
EMR connections.
1. For physical location(s),
see CHAPTER 4 - Installation.