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Key Features
Four channels of balanced microphone or line level input
0 – 66 dB gain, adjustable in 6 dB increments
+48 volts Phantom Power
-100 to +12 dB fader range for level
Audio and control networking over AVB/TSN
Powered by PoE+
Plug-in barrier strip connectors
Front panel LEDs for device status indications
Half-rack chassis
RoHS compliant and AES grounded
5-year warranty
Compliant with the US Trade Agreement Act (TAA)

The Tesira EX-IN is a half-rack expander box for use with AVB-enabled Tesira server-class devices. The EX-IN is a 4-channel mic or line level audio input expander. The expander communicates with the Tesira AVB network for audio networking, configuration, and control, and is powered by PoE+.
The Tesira EX-IN complies with the United States Trade Agreement Act (TAA), allowing it to be included in GSA Schedule contractors’ sales bids for the U.S. federal government.
| Attribute | Details |
|---|---|
| Height | 1.75 inches (44 mm) |
| Width | 8.5 inches (216 mm) |
| Depth | 7.75 inches (197 mm) |
| Weight | 3 lbs (1.4 kg) |
| Operating Temp | 32 - 104°F (0 - 40°C) |
| Humidity | 0-95% RH (non-condensing) |
| Altitude | 0-10,000 ft (0-3000m) MSL |
| Power | PoE+ (IEEE 802.3at Class 4, 30W) |
| Phantom Power | +48 VDC (7mA/input) |
| Audio | 4-channel analog audio input expander |
| Impedance | 8kΩ (balanced) |
| Input Gain Range | 0 - 66dB (6dB steps) |
| Max Input | +24dBu |
| Output Impedance | 200Ω (balanced) |
| Max Output | +24dBu |
| THD+N | < 0.006% @ 0dB Gain, +4dBu In |
| Frequency Response | 20Hz - 20kHz @ +4dBu, +0/-0.25dB |
| Dynamic Range | > 108dB (20Hz~20kHz) |
| Crosstalk | < -85dB @ 0dB Gain, +4dBu In |
| Sampling Rate | 48kHz |
| A/D Converters | 24-bit |
| Certifications | FCC, CE, UL, RCM, EAC, RoHS, TAA Compliant |
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