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Figure 7: 24 VAC Supply Power Terminal Block Wiring
Termination Details
A set of Johnson Controls® termination diagrams provides details for wiring inputs and outputs to the controllers.
See the figures in this section for the applicable termination diagrams.
Table 2: Termination Details
Type of Field Device
Temperature Sensor
Voltage Input - External
Source
IOM3711 Input/Output Module Installation Instructions
Type of
Termination Diagrams
Input/Output
UI
UI
Important: Connect 24 VAC supply power to the
expansion module and all other network
devices so that transformer phasing is
uniform across the network devices.
Powering network devices with uniform 24
VAC supply power phasing reduces noise,
interference, and ground loop problems.
The expansion module does not require an
earth ground connection.
Wireless Network Applications
Important: Wireless operation is not approved for
smoke control applications. Refer to the
Metasys® System UL 864 10th Edition
UUKL/ORD-C100-13 UUKLC Smoke
Control System Technical Bulletin
(LIT-12012487) for detailed requirements
and procedures for installing,
commissioning, and operating UL 864
UUKL/UUKLC Listed Metasys system
devices.
6
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