The Tesira EIC-4 is an expander card with 4 analog input channels for use with Tesira EX-MOD device. The EIC-4 is one of three optional cards that can be mounted in Tesira EX-MOD. Each EIC-4 provides 4 channels of mic/line level audio input. The inputs are electrically balanced and provided on plug-in barrier strip connectors. Software control of each input includes gain with clip indicator, +48V phantom power, mute, level, and signal invert. The modular card shall provide 4 balanced inputs on plug-in barrier strip connections. Software configuration and control for each input shall include gain with clip indication, phantom power on/off, mute, level, and signal invert. Analog-to-Digital conversion shall be 24-bit with a sampling rate of 48kHz.