Publicité
All manuals and user guides at all-guides.com
Operation
How the 0E-IA1250 is controlled is dependent upon how it is being used. Three basic modes will be
explained: Voltage controlled, IR controlled and RS232 controlled.
There are of course, variations on these three basic control modes that can utilize some options from
the other modes. Look for the features that fit a given application, and then configure the 0E-IA1250
appropriately.
VOLTAGE CONTROLLED
This mode would typically be used when the 0E-IA1250 is being used purely as a multi-channel
power amp with a multi-zone controller or preamp. That is, there would typically be no control of
volume, mute or any other functions other than amp ON/OFF.
In this mode the 0E-IA1250 will be turned ON with a control voltage from the multi-zone controller or
preamp to the Control IN jack. The 0E-IA1250 zone amps will output audio content as selected by
the zone controller or preamp at levels set by the zone controller or preamp. Zone audio can also
be switched to the Audio Bus IN using a voltage trigger on any zone(s) where audio paging or other
temporary 'Bus' audio source may be desirable.
The 0E-IA1250 will turn OFF when the control voltage to the 0E-IA1250 Control IN from the multi-
zone controller or preamp is cut.
Setup
Connect the 0E-IA1250 Control IN jack to a voltage control OUT on the multi-zone controller or
preamp. See section: Connections/Control IN for additional information.
NOTE: In this application it may be desirable to connect an IR system to the individual zones to set
zone audio levels relative to the multi-zone controller or preamp to set max output levels. This can
also be done using a computer with a USB to Serial adapter via RS232. (These connections would be
for setup only.)
Operation
There would not be any user specific control of the 0E-IA1250 in this application.
IR CONTROLLED
This mode would typically be used when the 0E-IA1250 is being used with a single audio source
being fed to all 0E-IA1250 zones, (as shown in the illustration on the opposite page) or when each
0E-IA1250 zone has a dedicated audio source. The 0E-IA1250 IR Remote would be used to turn a
zone ON/OFF, adjust volume, mute and tone controls.
NOTE: The Remote Bypass switch can be used to allow or not allow (bypass) IR (and/or RS232)
control of any/all zone(s).
All of the following assumes control from a local zone with a connected IR receiver as shown in
the illustration on the opposite page. The IR control system can also be used to control the audio
source(s) and other IR controlled devices. Each zone would require a dedicated IR system or use of
an IR zone controller with dedicated zone IR IN/OUTs.
21
Publicité
