Phonak DigiMaster X Installation Instructions Manual page 3

Connection to amplification system
DigiMaster X
3.5 mm Jack cable
3.5 mm <–> 6.3 mm Jack adapter
3.5 mm <-> XLR jack cable
Balanced input vs unbalanced input
Both balanced and unbalanced system inputs can be used with the DigiMaster X.
However the balanced connection is recommended.
Balanced
Line +
Line -
Shield
Stereo Jack 3.5 mm
Unbalanced
Signal
Ground
Mono Jack 3.5 mm
The DigiMaster X has a balanced transformer-coupled mono output to interface
with existing amplification systems.
Mic input = 3.5 mm mono jack
Mic input = 6.3 mm <-> ¼ inch mono jack
Mic input = XLR
1 = Tip = Line +
2 = Ring = Line –
3 = Sleeve = Shield
1 = Tip = Signal
2 = Sleeve = Ground