Johnson Controls IOM3731-0A Installation Manual

Application
The IOM3731-0A expansion module is part of the
Metasys system Field Equipment Controller family.
®
Input/Output expansion modules (IOMs) expand the
number of input/output points connected to either a
Network Automation Engine (NAE), Network Control
Engine (NCE), Advanced Application Field Equipment
Controller (FAC), Field Equipment Controller (FEC),
or Variable Air Volume Modular Assembly (VMA)
to monitor and control a wide variety of HVAC
equipment.
IOM expansion modules operate on an RS-485
BACnet MS/TP bus and integrate into Johnson
®
Controls and third-party BACnet systems. IOMs
communicate using the BACnet MS/TP protocol
when directly connected to the FC bus.
Note: With Release 10.1 and later of the
Controller Configuration Tool (CCT), VMAs, FECs,
and FACs can be configured to communicate
by using either the BACnet MS/TP or the N2
field bus networking protocol. The operation of
the IOM is not affected by the selection of the
BACnet MS/TP or the N2 protocol in the host
controller, when the IOM is connected to the
host controller using the SA bus.
North American emissions
compliance
United States
This equipment has been tested and found to
comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference when this equipment
is operated in a commercial environment. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications.
Operation of this equipment in a residential area
may cause harmful interference, in which case the
users will be required to correct the interference at
their own expense.
IOM3731-0A Expansion Input/Output Installation
Canada
This Class (A) digital apparatus meets all the
requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la Classe (A) respecte
toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
Installation
Observe these guidelines when installing an
expansion module:
• Transport the expansion module in the original
container to minimize vibration and shock
damage.
• Verify that all parts shipped with the expansion
module.
• Do not drop the expansion module or subject it to
physical shock.
Parts included
• One expansion module with removable terminal
blocks (Power and SA/FC bus are removable)
• One installation instructions sheet
Materials and special tools needed
• Three fasteners appropriate for the mounting
surface (M4 screws or #8 screws)
• One 20 cm (8 in.) or longer piece of 35 mm DIN
rail and appropriate hardware for DIN rail mount
(only)
• Small straight-blade screwdriver for securing
wires in the terminal blocks
Guide
Part No. 24-10144-165 Rev. J
2019-10-18
*2410144165J*
(barcode for factory use only)
MS-IOM3731-0A