Troubleshooting guide

Control Pins
SHURE
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P4800 System Processor Software Guide Page 76 of 108
CONTROL PINS__________________________________________
The pin connectors on the back of the System Processor provide options for external control of the device and
logic output. You can connect external control hardware to the control input pins, such as an AMX, Crestron, or a
custom wall panel. This type of simple hardware interface provides end users with a means to switch between
presets, mute channels, or adjust gain without the need for a computer. The logic output can be connected to
LED's, relays, or third-party logic hardware if the installation requires external devices or status displays to
respond to the System Processor's active preset and mute status.
External Control Overview
External device control is established at three different levels, as illustrated below in figure 49. In this example,
external control input is configured for switching between three presets, adjusting overall system output gain
with a potentiometer, and muting an input channel with a locking switch. The logic output is configured to
trigger external devices depending
on which preset is active, and
indicate the mute status of an
input channel with an LED.
To establish external device control:
1. External Connections
When the device is initially installed, determine what type of control input and logic output the
installation calls for, and wire the block connector terminals accordingly. Refer to the Control Pin
Connections section of the Hardware Installation Guide for instructions and wiring diagrams.
2. Pin Configuration
Use the Control Pins window of the software interface to configure the System Processor to
properly recognize the hardware control connections. This configuration is stored as a global
setting in the device, and can also be saved as a computer file. Refer to the Pin Configuration
Section on page 80 for instructions.
3. Processor Mapping
Once the device is configured to recognize external control, assign input and output channels to
the control connections. Use the processor mapping section of the Control Pins window. Each
preset or scene file stores a unique processor map. Refer to the Processor Mapping section.
Fi
g
ure 49 − The Three Levels of External Device Cont
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ol