Extron Electronics IPCP Pro Series User Guide - Manual (Page 27)

IPCP Pro Series • Hardware Features and Installation 21
K Volume control port — To provide volume control for Extron half rack audio amplifiers,
connect this port to the volume remote control port on the amplifier as shown below.
Configure the maximum and minimum voltage limits. Set Soft Start mode off or on
(default) . Soft Start mode allows volume to gradually increase from mute to the previous
level after muting or power-on to prevent loud audio bursts
10V 50mA
G C V
REMOTE
10V 50mA
G C V
10V
REMOTE
VOL/MUTE
REMOTE
VOL/MUTE
10V 50mA
G ST
ANDBY
10V 50mA
G C V
V C G
V C G
VOL
V C G
VOL
Ground (Gnd)
C
G
V
Ground
Reference voltage
C
G
Control voltage
V
Reference voltage input (from amplifier) – This allows the IPCP Pro to detect when the amp is present.
Control voltage (variable output to amp from IPCP Pro) – This signal controls the amp volume.
Example:
Connecting to
Extron Amplifiers
IPCP Pro
Rear
Panel
C or VOL/MUTE
V or 10V G or
MPA 401 Series MPA 181T,
MP 101 Series
MPA 152 MPA 152 Plus
XPA 1002
Rear Panel
Control voltage output:
0 - 10 VDC
Reference
voltage: ≤10 VDC
Volume Control
This port can be used to control the volume and mute or
unmute the audio for Extron half rack width audio amplifiers.
• Connect to an Extron audio ampifier to permit volume
control via touchpanel controls, macros, or schedules.
• Do not exceed 10 VDC input voltage.
Configure the maximum and minimum voltage limits. Set
Soft Start mode off or on (default) . Soft Start mode allows
volume to gradually increase from mute to the previous level
after muting or power-on to prevent loud audio bursts
NOTE: Use shielded cable and
place the control processor
as close as possible to the
amplifier to avoid picking up
background noise via the
cable. Ideal cable length is
six feet or less.
NOTE: When audio mute is active, the
control processor sets output voltage
to 0 VDC, even if the voltage range
(minimum and maximum voltage
limits) has been set to levels above
zero, such as 2 V to 8 V.
Figure 17. Volume Control Port Wiring Examples
PRELIMINARY