Plus-X ICRU Installation and Operation Manual Rev B
1
Introduction
The Plus-X Integrated Command Relay Unit is used to connect site equipment to the ARC Plus.
Each Plus-X ICRU connects up 16 relays or 8 pairs of raise/lower relay outputs. Plus-X ICRU
units are connected to the ARC Plus via LAN or WAN. Up to 32 Plus-X devices can be
connected to each ARC Plus.
Front Panel Indicators
Front panel of the Plus-X ICRU
Indicator
State
Description
Power LED
Off
Power is off
Power LED
Green
Power is on
Power LED
Flashing Green
Resetting to factory default settings
Power LED
Amber
No firmware loaded (contact Technical Support)
Power LED
Red
Resetting to factory default settings
Link LED
Green
Connected to ARC Plus
Link LED
Red
No connection to ARC Plus
Rear Panel Features
Rear panel of the Plus-X ICRU
The Plus-X ICRU provides 8 raise relay outputs (left side of panel) and 8 lower relay outputs
(right side of panel). Ethernet and AC power connections and the Master Init button are also
located on the rear panel.
Network Settings
Each Plus-X ICRU must be assigned a static IP address for communication with the ARC Plus
remote control system. However, using a dynamic IP address assigned by Dynamic Host
Configuration Protocol (DHCP) is an easy way to do initial setup of the Plus-X ICRU. This
