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

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.

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

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

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)

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

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

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.

Orion I/O with Ethernet Switch