Connector Specifications = 117
Appendix A

Connector Specifications

Audio XLR-3 Connector Pinout

Signals appearing on the XLR connectors are determined by the setting of the internal
Analog/Digital Audio Selection jumpers.
Pin BALANCED ANALOG AES/EBU DIGITAL
1 SHIELD (FRAME GROUND)
SHIELD (FRAME GROUND)
2 " + " OR HOT DIGITAL +
3 " " OR COMMON DIGITAL -
SHELL FRAME GROUND FRAME GROUND

Serial Control Connector Pinout

Pin EIA-422, DB9-F
Connector
1 GND
2 Transmit A (TX)
3 Receive B (RX+)
4 GND
5 N/C
6 GND
7 Transmit B (TX+)
8 Receive A (RX-)
9 GND
Shell
Frame ground