Crestron CEN-IO-RY-104 — 4-Relay Ethernet Control Module

All 6 units are in factory-sealed condition. 5 units are in original sealed Crestron boxes, unopened. The 6th unit's outer box has been opened but the device itself remains sealed in its original factory poly bag, never installed or powered on.

These were ordered by the University of Michigan for an AV control system installation (UM LSA project) and were never deployed. Original Crestron project tracking label visible on box (see photos).

Quantity available: 6 units in stock. Buy what you need.

Key specs:

• 4 relay outputs (SPDT, 1A @ 30VDC / 0.5A @ 125VAC)
• Powered by PoE (802.3af) or 24VDC — no separate power supply required
• Ethernet control via Crestron control system or direct TCP/IP
• DIN rail or surface mountable; compact IFE form factor
• Compatible with Crestron 2-series and 3-series control processors
• Typical uses: lighting control, display power switching, motorized shades, AV source switching

What's included: CEN-IO-RY-104 module, relay terminal connectors, quick start guide. No power supply or DIN rail hardware included.

Shipping: Free Priority Mail. Multiple units ship together.