Specifications

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Io Express Installation and Operation Guide — Cable Connections
Cable Connections
Io Express connections are made directly to the unit’s rear connector plate.
Io Express Connectors
Connector
Descriptions—
Io Express & Cables
HD/SD SDI Input and Output
BNC connectors are provided on Io Express for one HD/SD-SDI input and one HD/SD-SDI output.
The input and output support video and embedded 24-bit digital audio. Use SDI wherever
possible for the best quality 10-bit uncompressed video input, capture and output. If peripheral
equipment has a variety of inputs/outputs, look to see if it has SDI I/O, and use it where possible.
Most high-end professional broadcast equipment supports SDI (VTRs, cameras, media storage
servers, etc.).
HDMI Input and Output
Two HDMI connectors on the Io Express provide input and output of HDMI compatible video
and multi-channel embedded audio (8 channels). HDMI v1.3a capability at 30 bits per pixel
allows full support of the latest 10-bit monitors.
HDCP is not supported on either input or output. Io Express HDMI output does not have HDCP,
and input sources having HDCP are not supported. The HDMI input is designed to support long
cable runs—up to 100 ft. when using 22 or 24AWG HDMI cable, or up to 50 ft. using 28 or
30AWG HDMI cable. The HDMI output supports standard HDMI cables only.
The AJA Io Express Control Panel allows selection and adjustment of some HDMI parameters;
please see Chapter 3—Final Cut Pro 7 and Io Express for more information on Control Panel
operation.
Analog 2-Channel Unbalanced Audio Output
Io Express provides two analog output connectors, one for each channel. These connectors are
RCA-style phono jacks.
RS422 Machine Control
A female DE-9 connector on Io Express provides connection for VTRs, camcorders, disk media
servers, and other devices using RS422 SMPTE (Sony) protocol. (Connector pinout is listed in
Appendix A: Specifications.)
RS422
Machine Control
LTC /
Reference
Output
Analog
Audio
Output
Composite/
Component
Video Output
SDI
Input
SDI
Output
HDMI v1.3a
Output
LTC /
Reference
Input
HDMI v1.3a
Input
Power Supply
Connector