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Biamp Cornerstone

Wiring switches to the EX-LOGIC

Of the many options that can be used to control Tesira, one option is to use external switches and pushbuttons to initiate actions. Since switches are analog devices, these need to be connected to Tesira thru an EX-Logic. This article covers the details on wiring off-the-shelf switches as well as Biamp’s RP-S4 Remote Panel to the EX-Logic.

Wiring a generic switch

Wiring generic, off-the-shelf switches to the EX-Logic is very straightforward. Each switch should be wired between the ground terminal and the proper logic pin as indicated in the diagram below. Any ground terminal in the EX-Logic can be used for the ground connection.

Switch to EX-Logic.GIF

Wiring the RP-S4

The Biamp RP-S4 is a wall plate with four double-pole/double-throw (DPDT) switches. These switches are prewired from the factory with the poles tied together so it works as a single-pole/double-throw (SPDT). Each switch has three wires: white, red and green. The red wire is common while white and green are the contact wires. When the switch is pressed, a short will be present between the red and green wires. Releasing the switch will break that connection and short the red and white wires. For most applications, only the red and green wires need to be connected to the ground terminal and the logic input terminal of the EX-Logic respectively as shown below.

RPS-4 to EX-Logic.GIF

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