Johnson Controls IOM3731 Installation Manual

Application
The IOM3731 Input/Output Expansion Module (IOM) is
part of the Metasys system Field Equipment Controller
®
family. IOM field controllers expand the number of I/
O points connected to a Network Automation Engine
(NAE), Network Control Engine (NCE), Field Equipment
Controller (FEC), or Advanced Application Field Equipment
Controller (FAC) to monitor and control a wide variety of
HVAC equipment.
IOM field controllers operate on an RS-485 BACnet
TP Bus and integrate into the web-based Metasys system.
Note: At CCT Release 10.1 and later, a new capability
was introduced allowing VMAs, FECs, and FACs to
communicate by using either the BACnet or the N2
field bus networking protocol. The operation of the
IOM Input/Output Module is not affected by the
selection of the BACnet or the N2 protocol in the host
controller, when the IOM is connected to the host
controller using the SA bus. Only the BACnet protocol
is supported when the IOM is connected directly to
the trunk using the FC bus.
North American Emissions Compliance
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.
IOM3731 Input/Output Module Installation Guide
®
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
MS/
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.
Installation
Observe these guidelines when installing a controller:
• Transport the controller in the original container to
minimize vibration and shock damage.
• Verify that all parts shipped with the controller.
• Do not drop the controller or subject it to physical
shock.
Parts included
• One controller 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
Physical features
Part No. 24-10143-322 Rev. J
2019-10-18
*2410143322J*
(barcode for factory use only)
MS-IOM3731