DIMENSIONS
SL Mic Hub 1
Microphone Hub
The pin allocation of the GPIO ports shall be as follows: pin 1: microphone mute control, pin 2: microphone mute status, pin 3: on/off
hook control, pin 4: on/off hook status, pin 5: 5 V DC power supply, pin 6: ground. The hub shall also have one 7-pin terminal for con-
necting a global mute button, which shall add a mute capability to Sennheiser in-table mics without mute button. If more than one
global mute button is used, they shall be connected in parallel to the same 7-pin terminal and an external 5 V DC power supply must
be connected to pin 6 and 7. The pin allocation of the 7-pin terminal shall be as follows: pin 1: 5 V DC power supply (DC OUT), pin 2:
microphone mute control, pin 3: red LED, pin 4: green LED, pin 5: ground, pin 6: 5 V DC power supply (DC IN, not used), pin 7: ground
(not used).
The microphone hub shall be the Sennheiser SL MIC HUB 1.
ARCHITECT
’
S
SPECIFICATIONS
SL Mic Hub 1
300 mm
