User's Manual

Table Of Contents

Switch 4, 3 and 2 – SDI Audio De-Embed

Switches 4, 3 and 2 are represented as bits 2, 1, and 0 respectively. This simply means that by

setting various on/off combinations for switches 4, 3, and 2, you can choose which pair of audio

channels from your SDI input you would like to output to analog or AES/EBU audio.

Switch 1 – Processing Off – Processing On

Switch 1 lets you change the aspect ratio conversion that occurs when down converting Ultra

HD or HD inputs to SD analog outputs. This occurs because Ultra HD and HD formats are

presented in a 16:9 widescreen ratio of width to height, whereas SD is a taller 4:3 ratio.

The three options for aspect ratio conversion you can toggle through here are anamorphic,

center cut and letterbox. These stretch, crop, and add black bars to the top and bottom of your

image, respectively. To switch between these, simply toggle switch 1 on and off to move

through the available options. Each time switch 1 is set to ‘on,’ the aspect ratio type will move

ahead one option.

The behavior of switch 1 also changes depending on the analog output format you are using.

Composite video is always standard definition, so setting switch 1 to ‘off’ simply leaves the last

aspect ratio conversion option in place. However, component video can support a HD signal,

so when you are converting video from an SD source to a component output, setting switch 1

to ‘off’ will output a widescreen HD analog signal, with no aspect ratio conversion.

SDI Audio Selection Table

By using the following combinations of switch settings, you can select which SDI audio channels

to output as analog or digital AES/EBU audio with your Teranex Mini – SDI to Analog 12G.

Analog Audio Channels Switch 4 Switch 3 Switch 2 Switch Diagram

1 and 2 OFF OFF OFF

3 and 4 OFF OFF ON

5 and 6 OFF ON OFF

7 and 8 OFF ON ON

9 and 10 ON OFF OFF

11 and 12 ON OFF ON

13 and 14 ON ON OFF

15 and 16 ON ON ON

AES/EBU Audio Channels Switch 4 Switch 3 Switch 2 Switch Diagram

1-4 OFF OFF OFF

5-8 OFF OFF ON

9-12 OFF ON OFF

13-16 OFF ON ON

50Teranex Mini – SDI to Analog 12G