Logitek Electronic Systems JetStream Audio Networking Platform - Manual (Page 47)

Audio I/O with DB Connectors
DB25M plugs are required.
Audio Inputs/Outputs
Pin Connection Pin Connection
1 I/O 1 + 14 I/O 2 +
2 I/O 1 - 15 I/O 2 -
3 Ground 16 Ground
4 I/O 3 + 17 I/O 4 +
5 I/O 3 - 18 I/O 4 -
6 Ground 19 Ground
7 I/O 5 + 20 I/O 6 +
8 I/O 5 - 21 I/O 6 -
9 Ground 22 Ground
10 I/O 7 + 23 I/O 8 +
11 I/O 7 - 24 I/O 8 -
12 Ground 25 Ground
13 No connect
 TIP: If using unbalanced input connections, jumper the negative pins to ground. For
unbalanced output connections, leave the negative pins unconnected.
Logitek JetStream MINI Reference Manual 47