User Manual
SPNCWB
LECTROSONICS, INC.
6
Controls and Features
Headphone Monitor
Standard 1/4 inch jack and level control. Drives both 
channels of stereo headphones.
MCU Recovery (recessed pushbutton)
Used in the procedure to recover from an interrupted 
firmware update procedure. See section on Firmware 
Update Procedure for details on usage.
USB Port
Standard USB connector for the setup and control from 
a computer using Windows XP, Vista or Windows 7 op-
erating system. The USB port is also used for firmware 
updates.
Front Panel
Firmware Update (recessed pushbutton)
Used in the procedure to update the firmware in the 
processor. See the section on Firmware Update Pro-
cedure for details.
Status LEDs
• CommLED-indicatesUSB,RS-232andnetwork
communication
• AlertLED-blinkstoindicatefaultorerror
• AlertLED-glowssteadyinrmwareupdatemode
• PowerLED-glowstoindicatepowerON
POWER 
Switch
USB Port
Alert 
LED
Headphone Monitor
Comm 
LED
Power 
LED
MCU Recovery
recessed pushbutton
Firmware Update
recessed pushbutton










