Audio And Aux I/O; Table 1: Audio And Aux I/O Pinout; Table 2: Audio To Xlr Connection - evertz 7700 Manual

7700 MultiFrame Manual
7700SID(-AM) Source Identification Decoder
2.2.

AUDIO AND AUX I/O

The following is the pinout of the female HD DB-15 connector. It is labeled "Aux I/O" on the 7700SID and
"Audio and Aux I/O" on the 7700SID-AM:
DB-15
9
4
5
10
14
15
8
12
3
13
7
2
6
11
1
Two channels of balanced analog audio are available through this connector. The balanced audio can be
connected to male XLR connectors as follows (standard pin 2 +ve connection):
The GPI's are active low with internal pull up resistors (4.7k Ohms) to +5V. To make an input active, lower
the signal to near ground potential (i.e. connect to shell or signal COMGND ground). This can be done
with a switch, relay, TTL drive, GPO output or other similar method.
The GPO's are active low with internal pull up (10k Ohm) resistors. When active, the output will go low and
is able to sink up to 10mA. When in-active, the signal will go high (+5V). Do not draw more than 100µA
from the output.
The COM port signals are standard RS-232 with hardware flow control. The directions of the signals are
indicated in the above table.
7700SID(-AM)-4
Name Description
NC
A1- Audio channel 1 – (7700SID-AM only)
A1+ Audio channel 1 + (7700SID-AM only)
NC
A2- Audio channel 2 - (7700SID-AM only)
A2+ Audio channel 2 + (7700SID-AM only)
GPI1 General Purpose Input 1
GPI2 General Purpose Input 2
GPO1 General Purpose Output 1
GPO2 General Purpose Output 2
CTS RS-232 (output)
Tx RS-232 (output)
Rx RS-232 (input)
RTS RS-232 (input)
COMGND Communications ground

Table 1: Audio and Aux I/O Pinout

HD DB-15 XLR
Audio + 2
Audio - 3
Shell 1

Table 2: Audio to XLR Connection

Revision 0.3