> For the complete documentation index, see [llms.txt](https://docs.behringer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.behringer.com/mixers/sc-i-o/connectors.md).

# Connectors

## Front Panels

<figure><picture><source srcset="/files/7BboHEU0IIVp6BIPeWs5" media="(prefers-color-scheme: dark)"><img src="https://1102089800-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9UgzPSf0PgyW4i7m3qgN%2Fuploads%2FZywjNfqLkg9KRbs88g9C%2FSC16-I-front-panel.png?alt=media&amp;token=016cb82a-1708-46b0-a879-92153401a403" alt=""></picture><figcaption><p>SC16-I front panel</p></figcaption></figure>

<figure><picture><source srcset="/files/0AWjVTodFtGWZ2laSCum" media="(prefers-color-scheme: dark)"><img src="https://1102089800-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9UgzPSf0PgyW4i7m3qgN%2Fuploads%2FGJBnfI8syuUUTaQkERkH%2FSC16-O-front-panel.png?alt=media&amp;token=08ee50e0-a425-430c-949e-3edb04c6f106" alt=""></picture><figcaption><p>SC16-O front panel</p></figcaption></figure>

<figure><picture><source srcset="/files/I8rezgYUPHOdVVUmbTks" media="(prefers-color-scheme: dark)"><img src="https://1102089800-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9UgzPSf0PgyW4i7m3qgN%2Fuploads%2FeW0iYKXZUY6yFpZUO5HD%2FSC88-front-panel.png?alt=media&amp;token=4447fb60-3de3-4eeb-b0cb-f971c43ca9bd" alt=""></picture><figcaption><p>SC88 front panel</p></figcaption></figure>

1. Inputs 1–8: combination XLR/TRS jacks with Triad microphone preamplifiers for microphone or line-level sources
2. Inputs 9–16: combination XLR/TRS jacks for line-level sources
3. StageConnect status LED: green = OK, yellow = connection errors, red = not connected
4. MIDI activity LED
5. Power LED
6. Outputs (SC16-O 1–16, SC88 1–8): XLR-M connectors, line level

## Rear Panels

<figure><picture><source srcset="/files/0qn3GnHB44CWgKSi2jzN" media="(prefers-color-scheme: dark)"><img src="https://1102089800-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9UgzPSf0PgyW4i7m3qgN%2Fuploads%2FfvysYSe5bTIVNTeRoZAp%2FSC16-I-rear-panel.png?alt=media&amp;token=43cb601f-9609-4ab2-82bc-9c77d1850f4f" alt=""></picture><figcaption><p>SC16-I rear panel</p></figcaption></figure>

<figure><picture><source srcset="/files/zcgLns7iGJDWpaUM3RB5" media="(prefers-color-scheme: dark)"><img src="https://1102089800-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9UgzPSf0PgyW4i7m3qgN%2Fuploads%2Fk1XLnQpGRX3LHKFdWH7M%2FSC16-O-rear-panel.png?alt=media&amp;token=7131dde7-7732-4c31-b445-bd9a575f8342" alt=""></picture><figcaption><p>SC16-O rear panel</p></figcaption></figure>

<figure><picture><source srcset="/files/6tXL4wIq3evLkpWZHvWQ" media="(prefers-color-scheme: dark)"><img src="https://1102089800-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9UgzPSf0PgyW4i7m3qgN%2Fuploads%2F01t6dVVSEDZfH8ZrwFin%2FSC88-rear-panel.png?alt=media&amp;token=aaa51ada-05d4-412f-be69-ec28567334ac" alt=""></picture><figcaption><p>SC88 rear panel</p></figcaption></figure>

7. DC input, 12 V / 2.5 A: use the supplied external power supply.
8. USB 2.0 Type-C connector for firmware updates and remote control
9. Ultranet OUT 1 switch: see "StageConnect Routing" below for details.
10. Ultranet OUT 1 (always on in the SC16-O): when the switch is set to ON, StageConnect downstream channels 1–16 are converted to Ultranet and sent through this port.
11. Ultranet OUT 2: analog inputs 1–16 are always converted to Ultranet and sent through this port.
12. StageConnect CLIENT port: connect to the StageConnect Host.
13. StageConnect HOST port: daisy-chains to a second interface. See "StageConnect Routing" below for channel-availability limits.
14. MIDI IN: receives MIDI data through the 5-pin DIN connector and transmits it over the StageConnect bus.
15. MIDI OUT: transmits MIDI data from the StageConnect bus through the 5-pin DIN connector.
16. ULTRANET 16 CH INPUT port (SC16-O only): connect an Ultranet source here.
17. Ultranet OUT 2 (SC88 only): carries the 8 analog input signals on channels 1–8 and the 8 analog output signals on channels 9–16.


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