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Electronic Theatre Controls Inc

Lon Infrastructure for Architectural Systems

Lon is a data standard used largely by ETC Architectural products to carry data and power to architectural outstations such as button stations, occupancy sensors and daylight sensors.

Lon is assigned different names depending on the system it is being used with.

With ETC's Paradigm systems, it is known as Unison LinkPower

With ETC SmarttLink systems, it is known as LinkConnect

It is important to note that although the cabling and physical layer (voltage, topology, etc.) are the same for all of these systems, the data carried is not the same - for example, connecting a Smartlink station to a Paradigm processor will not work!


Lon is a topology free cabling system, meaning that the cable can be split, starred, daisy chained or any combination of these. The only restriction is that the total length of cabling must not exceed 1640' (500m) without use of a repeater.

ETC recommends the use of Belden 8471 cable for Lon systems. It is very important to note that DMX cable, Cat5 cable and other types will not work.

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