Avid Technology Pro Tools MTRX - Digital I;O and Synchronization; Network Interface; Electrical Specifications

Pro Tools | MTRX Installation Guide22
Connections for the 25-pin D-sub connector are listed in the table below. The pinning is according to the
proprietary standard by Tascam.
Pin number Function Pin number Function
1 AIN/OUT 8 + 14 AIN/OUT 8 –
2 GND 15 AIN/OUT 7 +
3 AIN/OUT 7 – 16 GND
4 AIN/OUT 6 + 17 AIN/OUT 6 –
5 GND 18 AIN/OUT 5 +
6 DOUT 2/6 + 19 GND
7 AIN/OUT 4 + 20 AIN/OUT 4 –
8 GND 21 AIN/OUT 3 +
9 AIN/OUT 3 – 22 GND
10 AIN/OUT 2 + 23 AIN/OUT 2 –
11 GND 24 AIN/OUT 1 +
12 AIN/OUT 1 – 25 GND
13 N.C.