Shure PGXD Quick Start Manual page 18

Pin Assignments
1 ground (cable shield)
2 + 5 V Bias
3 audio
4 On instrument adapter cable, pin 4 floats
Dimensions
108 mm x 64 mm x 19 mm
Weight
128 g (4.5 oz.) (without batteries)
Housing
Molded Polycarbonate Case
Power Requirements
2 AA size alkaline or rechargeable batteries
Battery Life
up to 10 hours
PGXD4
Dimensions
40 mm x 181 mm x 104 mm
Weight
289 g (10.2 oz.)
Housing
ABS
Sensitivity
-5
-102 dBmat 10 BER
Power Requirements
12-18 V DC at 150 mA, supplied by external power supply (tip positive)
Audio LED
Red
Amber
Green
Configuration
Impedance Balanced
2
12
50
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