The most complete
substation I/O solution


Orion I/O provides the most comprehensive solution for substation automation, featuring high density, I/O card flexibility, and unique local display for point names and status.


16-point Discrete Input Card

Electrically isolated circuits; two wires per input

Single design accommodates either higher voltage range (“HV”) or lower voltage range (“LV”). Range selection in software.

HV: nominal 125V dc, maximum 145V dc, always OFF at 75V dc

LV: nominal 12V dc to 48V dc, maximum 60V dc, always OFF at 9V dc

16-point Discrete Input Wetted Card

Module generates and sources the contact wetting current

16 points in one group. Even-numbered terminals shorted together internally to provide more wiring flexibility.

24V dc or 48V dc wetting voltage is provided by I/O card. Wetting power supply voltage software selectable in NCD.

16-point Discrete Output Card

Conventional isolated normally open (NO) contacts

Two terminals per output

Tripping duty, substation-grade relay outputs
Make 30A, continuous carry 10A
Break inductive @48V dc: 700mA @40ms L/R
Break inductive @125V dc: 200mA @40ms L/R

AC rating: up to 250V ac @8A

16-point High Power Output Card

Up to 145V dc

Break inductive circuit of 10A, with a time constant of 40ms L/R

OFF-to-ON, less than 10ms; ON-to-OFF, less than 10ms

Leakage current 1mA or less

Make 30A, continuous carry 10A

DC only

8-point Discrete Input / 8-point High Power Output Combination Card

Input circuit and output circuit specifications as in above cards

Includes “Feedback Dropout” feature where the turn OFF of a selected output is gated by a state change of a selected input (e.g. 52a or 52b)

8-point Analog Input Card

Isolated with three ranges:
-2mA to +2mA
-10V to +10V
4mA to 20mA

8-point Analog Input Flex Card

8-point Analog Input Flex Card

Isolated with three ranges (as above):
-2mA to +2mA
-10V to +10V
4mA to 20mA

Range selection in software

Input impedance on voltages increased to 1M ohms (from 10K ohms on standard AI card)

Terminals provided for analog shield wires

Dimensions and Features







Rear Display / Surface Mount

To facilitate legacy RTU retrofits, a “Rear Display” (RD) model with panel and rack mounting options is available. All LEDs and ports are located on the same side.


In addition to TPM (Trusted Platform Module), Orion I/O incorporates the same software tools and security features as all Orions, including support for RADIUS, LDAP, DNP3-SA, and TLS encryption.



Operating Temperature
-40°C to +70°C
Storage Temperature
-40°C to +85°C
Operating Humidity
5 to 95% non-condensing
2,000 meters max


IEC 61850, IEC 60870-5-101/104, DNP3 serial and TCP, Modbus serial and TCP, L&G 8979, SES-92, SPS, and Tejas V
IEC 61850, IEC 60870-5-101/104/103, DNP3 serial and TCP, Modbus serial and TCP, SEL® over serial and TCP

Power Supply Options

48V dc – 250V dc nominal / 69V ac – 240V ac, 50/60Hz
12V dc – 24V dc nominal



Data Archiving and Storage



Power and I/O terminals
compression screw terminals, #12-24 AWG

Alarm Output

Alarm Output
Type Form B, contact ratings 10A max.

Communications to RTU,

1200bps – 115kbps
Option EP: 1 RJ45 port, 1 SFP port RJ45 port: SFP port:
10/100/1000BaseT, half/full duplex see list of available transceivers below
Option ES: 1 RJ45 port, 3-port switch (unmanaged) RJ45 port: 3-port switch:
10/100/1000BaseT, half/full duplex RJ45 ports, 10/100/1000BaseT, half/full duplex
Option RP: 2 RJ45 PRP/HSR ports and 1 SFP port RJ45 ports: SFP port:
PRP/HSR port pair 10/100/1000BaseT, half/full duplex see list of available transceivers below

Available SFP Transceivers

SFP-SM01LCSingle mode10km1310nm1Gbps
SFP-SM04LCSingle mode40km1310nm1Gbps

Orion I/O with Ethernet Switch

Let’s talk

Call us today at 844.NovaTech (668-2832)

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