Table of Contents
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Introduction
Protection
Status indicators
Environmental operating
range
Overall dimensions
Mounting dimensions
Depth
Weight
BACnet support
Listed by
Safety considerations
WARNING Disconnect electrical power to the RTU Open before wiring it. Failure to follow this warning could
cause electrical shock, personal injury, or damage to the controller.
RTU Open v3
Installation and Start-up Guide
Built-in surge and transient protection for power and communications in
compliance with EN61000-6-1.
Incoming power and network connections are protected by non-replaceable
internal solid-state polyswitches that reset themselves when the condition that
causes a fault returns to normal.
The power, network, input, and output connections are also protected against
transient excess voltage/surge events lasting no more than 10 msec.
CAUTION To protect against large electrical surges on serial EIA-485
networks, place a PROT485 at each place wire enters or exits the building.
LEDs indicate status of communications, running, errors, power, and digital
outputs
-40 to 158°F (-40 to 70°C), 10–95% relative humidity, non-condensing
NOTE Controllers should be mounted in a protective enclosure.
Vibration during operation: all planes/directions, 1.5G @ 20–300 Hz
Shock during operation: all planes/directions, 5G peak, 11 ms
Shock during storage: all planes/directions, 100G peak, 11 ms
A:
6-1/2 in. (16.5 cm)
B:
6-1/2 in. (16.5 cm)
7 mounting holes in various positions
1-11/16 in. (4.3 cm)
11.2 oz (0.32 kg)
Conforms to the BACnet Advanced Application Controller (B-AAC) Standard Device
Profile as defined in ANSI/ASHRAE Standard 135-2012 (BACnet) Annex L,
Protocol Revision 9
UL-873, FCC Part 15-Subpart B-Class A, CE EN50082-1997
4
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