14
4. Connect the conference units. Up to 35 units can be connected per expansion amplifier. One each of the
expansion amplifier can be connected to the center amplifier's line 1 and line 2 terminals.
Expansion amplifier
rear panel
Expansion amplifier
rear panel
Center amplifier
rear panel
To LINE 1 To LINE 2 To LINE 1
To LINE 2
Up to 35 units
Up to 35 units Up to 35 units Up to 35 units
Maximum
100 m
A total of 140 conference units can be connected.
Notes on expansion amplifier connections
The use of the expansion amplifier's input and output terminals is restricted as follows:
• MIC, AUX 1, and AUX 2: Can be used in the same manner as the center amplifier.
• Recording output: Cannot be used. When recording, use the recording output on the center amplifier
or conference unit.