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LAYOUT DESIGN AND CONNECTING TO
ANTEX SX-35/36 AUDIO BOARDS

Antex SX-35/36 The Antex SX-35/36 audio card does not use standard audio connectors. Connections are made via an external DB-9 connection, female on the card and a male plug to the console, and several 16 pin strip connectors mounted on the card. The balanced input and output connections are made via the DB-9 female connector. Several unbalanced connections, including a direct microphone, are made via the strips.

The external DB9 connection can be wired as balanced or unbalanced. In either case, you will need a DB9 male connector. All wires within the connector should be soldered and/or crimped firmly to minimize noise induction.

This diagram shows the positioning of the various connectors on the card. All of the internal audio connections (JP7, JP8, JP9) are near the back of the card.

Here are the wiring specifics for the three strip connections:

LINE IN/0UT (JP8)

Pin 1    Right Line Input +
Pin 3    Right Line Input -
Pin 5    Left Line Input +
Pin 7    Left Line Input -
Pin 9    Right Line Output +
Pin 11    Right Line Output -
Pin 13    Left Line Output +
Pin;15    Left Line Output -
Pins 2,4,6,8,10,12,14,16   Ground

AUX IN (JP9)

Pin 1    Right Aux Input +
Pin 3    Right Aux Input -
Pin 5    Left Aux Input +
Pin 7    Left Aux Input -
Pin 9    No connection
Pin 2,4,6,8,10,12,14,16   Ground

MIC IN (JP7)

Pin1    Microphone input (2.5vdc phantom power)
Pin 2   Ground


The wiring for the DB-9 connector, female on the card and male plug to the console, is shown in this chart.

DB9 Connector Wiring
Pin Assignment
1Ground
2Right In -
3Left In -
4Right Out -
5Left Out -
6Right In +
7Left In +
8Right Out +
9Left Out +



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This page last updated 11/18/97