Carrier RTU OPEN 11-808-427-01 - Manual (Page 9)

RTU Open 3
Specifications
Driver drv_rtuopn_std
Power 24 Vac ±10%, 50–60 Hz
20 VA power consumption (26 VA with a BACview device attached)
26 Vdc (25 V min, 30 V max)
Single Class 2 source only, 100 VA or less
Access port J12 To connect a BACview 6 Handheld device, Virtual BACview application, or
Field Assistant
Rnet port J13 For SPT sensors and a BACview 6 device in any of the following combinations,
wired in a daisy-chain configuration:
• 1 SPT Plus or SPT Pro
• 1–4 SPT Standards
• 1–4 SPT Standards, and 1 SPT Plus or SPT Pro
Any of the above combinations, plus a BACview 6 device, but no more than 6
devices total
Comm Option port For communication with the LonWorks Option Card.
Inputs 12 inputs:
Inputs 1 - 2: 4-20 mA only
Inputs 3, 5, 8, 9: Binary, 24 Vac
Inputs 6 - 7: Thermistor
Inputs 10 - 11: Thermistor
Rnet sensor
Binary outputs 8 relay outputs, contacts rated at 3 A max @ 24 Vac
Configured normally open.
Analog output 1 analog output
AO1: 2 - 10 Vdc or 4-20 mA
Output resolution 10 bit D/A
Real-time clock Battery-backed real-time clock keeps track of time in event of power failure
Battery 10-year Lithium CR2032 battery provides a minimum of 10,000 hours of
data retention during power outages
Protection 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, and output connections are also protected against
transient excess voltage/surge events lasting no more than 10 msec.
Status indicators LED's indicate status of communications, running, errors, power, and digital
outputs