Plus-X Integrated Command Relay Unit: connects 8 pairs of raise/lower command relays to an ARC Plus over the LAN at your site. Connect up to 32 ICRUs to one ARC Plus to scale to 256 command channels.
Add ICRUs anywhere IP access is available, close to the equipment they control, so you avoid long runs of parallel site wiring and can use an existing ARC Plus to control additional sites.