Avid DB-25 Connections: 
Avid (Digidesign) uses the Tascam Db-25 connections. 
 
The analog-in, -out, both +4 and -10, all use the same pin-outs. 
CH1_HOT- 24 
CH1_COLD - 12 
CH1_GND - 25 
 
CH2_HOT - 10 
CH2_COLD  - 23 
CH2_GND - 11 
 
CH3_HOT - 21 
CH3_COLD - 9 
CH3_GND - 22 
 
CH4_HOT - 7 
CH4_COLD - 20 
CH4_GND - 8 
 
CH5_HOT - 18 
CH5_COLD - 6 
CH5_GND - 19 
 
CH6_HOT - 4 
CH6_COLD - 17 
CH6_GND - 5 
 
CH7_HOT - 15 
CH7_COLD - 3 
CH7_GND - 16 
 
CH8_HOT - 1 
CH8_COLD - 14 
CH8_GND - 2 
 
NC_1 - 13 
MH1 - 16 
MH2 - 27 
 
(These pin-outs are from the HD-IO guide in Appendix B.) 
 
 
AES/EBU Pin-outs: 
 
  
 
 
 
AES/EBU 
Also on the Tascam pin-out: 
Universal Audio (U) 
RME 
PreSonus 
Focusrite 
Audient 
 
 
NOT-COMPATIBLE - Products that use the Yamaha DB-25 connections: 
Apogee 
Mackie 
Lynx 
SSL 
 
  
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