Mechanical
A-5
Battery level indicator (4 LEDs)
Standby Performance
Uses no power from internal or external batteries when switched off.
External 12 V battery or AC
Adaptor
External DC Voltage Range: 10.5 to 30 V
Note: The Model 2221 will run on
external DC voltage down to 6 Volts,
but will draw power from whichever
supply (external or internal battery)
has the highest voltage.
Current: 65 mA @ 12 V with PRM902 Microphone Preamplifier
2.5 x 5.5 mm coaxial connector, center positive
Power switches (without interruption) to the internal batteries when there is an external power failure
or low external voltage.
Mechanical
Dimensions
Height
32.8 mm (1.29 in)
Width
104 mm (4.10 in)
Length
204 mm (8.02 in)