MPS-Series – Installation Guide
U-0664-0174.doc – Issue: 07 complete, approved
Page 21 of 24
Plug Contact
Signal Description
Tip
LEFT CHANNEL
I/P
Unbalanced stereo left channel input
Ring
RIGHT CHANNEL
I/P
Unbalanced stereo right channel input
TRS
Sleeve GROUND
−
Ground
Tip
AUDIO+
I/P
Balanced audio input +
Ring 1
−
−
−
Ring 2
AUDIO-
I/P
Balanced audio input -
TRRS
Sleeve GROUND
−
Ground
TIP
RING
SLEEVE
TRS JACK PLUG
TIP
RING 1
RING 2
SLEEVE
TRRS JACK PLUG
⑦
Audio Input/Music
3.5 mm jack
1) TRS plug: this input can be used for background music input (standard 3.5 mm
stereo jack input internally mixed to mono)
2) TRRS plug: this input can be used for connection of a balanced audio source
Plug Contact
Signal Description
Tip
CONTACT INPUT
I/P
Contact input (contact closure to ground,
internal 10 k
Ω
pull up to +3.3 V)
Ring
CONTACT OUTPUT
O/P
Contact output (open-collector)
TRS
Sleeve GROUND
−
Ground
TIP
RING
SLEEVE
TRS JACK PLUG
⑧
I/O
Contact Input and Output
3.5 mm jack
Single contact output provided twice on two connectors
Plug Contact
Signal Description
Tip
+5V OUTPUT
O/P
Low current supply output (50 mA max.)
Ring
CONTACT OUTPUT
O/P
Contact output (open-collector)
TRS
Sleeve GROUND
−
Ground
TIP
RING
SLEEVE
TRS JACK PLUG
⑨
I/O
Contact Output
3.5 mm jack
1) Single contact output provided twice on two connectors
2) Low current supply output only available from Build Standard 4 or later