Shure 522 - Technical Connections and Specifications; Impedance Selection; Logic Connections; Audio Connections

Shure Incorporated
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Impedance Selection
Use the switch located under the microphone base, near the cable entry, to select high (HI) or low (LO) impedance.
Use the low-impedance position for long cable lengths under conditions of severe hum disturbance. Use Shure Model A95
Series Line Matching Transformers when using a low-impedance microphone line with a high-impedance amplifier input.
Logic Connections
The RED and BLACK leads may be used to control an external relay or switching circuit.
Audio Connections
Unbalanced high-impedance operation:
Set the impedance switch to the HI position (as shipped). Connect the GREEN cable lead and the shield to the amplifier chas
sis ground. The WHITE cable lead is the "hot" conductor.
Balanced-line low-impedance operation:
Set the impedance switch to the LO position. Connect the shield to the amplifier chassis ground. The WHITE and GREEN ca
ble leads are the "hot" conductors.
Cable-to-Connector Wiring
Input Type Wire Color Function XLR Connector 1/4 in. Phone Plug
Unbalanced
White Audio Pin 2 Tip
Green Audio Ground Pin 3 Sleeve
Shield Chassis Ground Pin 1 Sleeve
Balanced
White Audio + Pin 2 Tip
Green Audio - Pin 3 Ring
Shield Chassis Ground Pin 1 Sleeve