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DB25 Audio Connections
Aviom analog input and output modules with DB25 multi‑pin connectors are
wired to the analog pinout that has become standard in the audio industry
(which is sometimes referred to as the Tascam® DA‑88 or DTRS pinout). This
wiring standard allows easy interfacing with a variety of audio equipment
using readily‑available multi‑pin breakout cables or by incorporating Aviom’s
PB28 Modular Patch Bay products. Each DB25 jack on an Aviom product
carries eight balanced audio channels.
Note that digital devices that transmit AES3 digital audio data (sometimes
referred to as AES/EBU) use a different wiring pinout; analog and digital
multi‑pin breakout cables and/or patch bays are not interchangeable.
Wiring an Analog DB25 Cable
To wire a custom cable for use with the analog DB25 jacks on an Aviom
product, use the following table:
Channel Number
DB25 Pin Number
Hot Cold Ground
1 24 12 25
2 10 23 11
3 21 9 22
4 7 20 8
5 18 6 19
6 4 17 5
7 15 3 16
8 1 14 2
No Connect 13
DB25 Panel-Mount Connector Pinout
The pins on panel‑mounted DB25 jacks found on Aviom products are
numbered according to the diagram below.
13 12 11 10 9 8 7 6 5 4 3 2 1
25 24 23 22 21 20 19 18 17 16 15 14