Video outputs, Audio inputs digital, Audio output digital – AJA Io4K User Manual
Page 57: Audio output analog, Downstream keyer, 4k to hd down- conversion, Reference input or ltc input, Physical

Io XT/4K v10.5r2
www.aja.com
57
Video Outputs
• 3G/SD/HD SDI, SMPTE-259/292/296/424, 8- or 10-bits
• Single Link 4:2:2 or 4:4:4 (1 x BNC)
• Dual Link HD 4:4:4 (2 x BNC)
• 2K HSDL (High Speed Data Link) 4:4:4, (2 x BNC)
• 4K/QuadHD 4:4:4 (4 x BNC)
• HDMI v1.4
• 30/36 bits/pixel, RGB or YUV, 2.25Gbps.
• SD, HD, 1080p-50/60, 4K, 2K and stereoscopic HD support
Audio Inputs Digital
• 16-channel, 24-bit SDI embedded audio, 48kHz sample rate, Synchronous
• 8-channel, 24-bit HDMI embedded audio, 48kHz sample rate, Synchronous
Audio Output
Digital
• 16-channel, 24-bit SDI embedded audio, 48kHz sample rate, Synchronous
• 8-channel, 24-bit HDMI embedded audio, 48kHz sample rate, Synchronous
Audio Output
Analog
• 8-channel, 24-bit D/A analog audio, 48kHz sample rate, balanced
• (via 8x XLR on DB-25 breakout cable)
• +24 dBu Full Scale Digital (0 dBFS)
• +/- 0.2 bB 20Hz to 20kHz Frequency Response
Downstream Keyer
• Supports graphics with alpha channel over video, matte or framebuffer content over
incoming video or matte.
4K to HD Down-
Conversion
• Real time, always-on dedicated down-conversion output (1 x BNC)
• 4K to 2K down-conversion
• UltraHD/QuadHD to HD down-conversion
Reference Input or
LTC Input
• 1x BNC LTC Output
• 1 x BNC assignable to Reference video or LTC input
• Reference:
• Analog Color Black (1V) or Composite Sync (2 or 4V)
• Non-terminating
Physical
• Interface: Thunderbolt 2 (2 x)
• Power: 10-20V, 30-60W*
NOTE:
Nominal power is 30W. However, multiple connected Thunderbolt devices may place
additional power demands on Io 4K, which could increase the power draw to 60W.