Extron Electronics IPI 200 Series User Guide - Manual (Page 23)

2-9 IPI 100 and IPI 200 Series • Installation
Intercom with amplifier
The MLC’s Audio Out 2‑pole captive screw connector outputs a ‑10 dBV audio
signal that can be routed to an MPA 152 or any external audio amplifier, then to
speakers.
1.
Cable the system as shown in the following diagram.
MPA 152
IPI 201
POWER
12V 3A MAX
OUTPUT
4/8 OHMS
CLASS 2 WIRING DO NOT GROUND OR SHORT SPEAKER OUTPUTS!
INPUTS
L R
L R
REMOTE
VOL/MUTE 10V 50mA
L
MPA 152
R
C US
LISTED 17TT AUDIO/VIDEO APPARATUS
SI 3CT LP
Ceiling
Speakers
POWER RELAY C NO AUDIO OUT
LAN
2. Power on the equipment.
3. Make fine adjustments to output level using the Remote Line slider in the
Advanced Settings part of the HelpDesk software. The external amplifier (the
MPA 152 in this example) must be adjusted properly to avoid any audio signal
clipping or audio distortion.
4. If desired, use the software to adjust to minimum levels the IPI’s speaker
output.