Hardware Specifications - microHAM micro2R u2R User Manual

USB: USB 2.0 Full speed, USB 1.1 compatible
Power consumption:
USB – less than 100mA
Power supply – less than 250mA at 13.8V (max. 16V)
CW: 2 x open collector, max 30V/400mA
PTT: 2 x open collector, max 30V/400mA
PTTIN: 2 x active when closed to ground, max load: 1mA at 5V
ACC port pins 2-13: TTL levels, max 4mA load
LPT port: Optically isolated inputs, load less than 1mA per port at 5V
FSK: 2 x open collector, max 30V/400mA
FOCUS: open collector, max 12V/50mA, closed to ground when TXFOCUS=R1
FOOTSW: input active when closed to ground, max load: 1mA at 5V
PHONES: stereo output for headphones, 32 ohm load
MIC: dynamic/electret microphone input, max. 500mV p-p
switchable 8V bias off/tip/ring, max. 1mA
SOUND CARD OUT: AC coupled stereo input from sound card. 32-600 Ohm, max. 4V p-p
SOUND CARD MIC: AC coupled output to sound card microphone input. 600 Ohm, typ. 100mV p-p
Dimensions: W 232mm (9.125") x H 44mm (1.73") x D 105mm (4.125")
Weight: 1.3 kg (1.875 lbs.)
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