Vaddio EasyUSB PRO MIC I/O - Manual (Page 6)

PRO MIC I/O
Vaddio PRO MIC I/O - Document Number 342-0569 Rev A Page 6 of 16
E QUIPMENT D ESCRIPTIONS AND C ALL - OUTS
Image: PRO MIC I/O Front Panel
The EasyUSB Mixer/Amp is the master audio device within an EasyTalk USB solution providing the only method
to interface to PC or external A/V equipment. Every EasyUSB PRO MIC I/O solution must be used with the
EasyUSB Mixer/Amp.
1-4)
Mic Gain Controls: Gain controls for setting level on microphone pre-amp input.
5) Mute LED: Red indicates that all PRO MIC I/O channels are muted. An unlit red LED shows that the
microphones are not muted.
6) Power LED: Blue indicates system is powered and operational. Flashing blue indicates a system error.
Image: PRO MIC I/O Rear Panel Connections
1) System
Settings: 2-position dip switch associated with system settings. Switch 1 locks out front panel again
control knobs. Switch 2 places PRO MIC I/O in firmware upgrade mode upon reboot.
2) GPIO: Mute Control and Status pins for use with external indicators and controls. Inputs are logic low.
Outputs are open collectors. The GPIO Includes a ground and +5 volt power pin to drive external circuits (if
desired).
3) EasyMic Port & Serial Port: Top RJ-45 connector is for connection to the EasyMic Mixer/Amp providing
audio, power, and control over Cat-5. The bottom RJ-45 is an RS-232 port dedicated for firmware updates to
the PRO MIC I/O.
4) XLR Inputs: The XLR inputs are Mic/Line level, balanced with Pin 2 hot.
5) 3-Position DIP Switch: The dip switches are for audio settings for each input channel. The settings include
enable and disable of the 48VDC Phantom Power, Low Pass filter, and High Pass Filter. The Low Pass filter
has center frequency at 14 kHz and High Pass filter is at 120 Hz.
.
➌
➏
➍/➎
x 4 Channels
➊ ➋
➎ ➊ - ➍