Classe Audio CA-M400 Owner's Manual page 19

Since an IR distribution system such as your dealer may design for
you usually must control many products, your amplifier includes
both an IR input (for the control of this product) and an IR out-
put (so as to pass along the same signal to the next product). This
allows you to "daisy chain" your control wires from one product to
the next.
The amplifier is designed to respond to IR commands of between
3-12 volts DC, with the tip of the mini-plugs defined to be "posi-
tive" relative to the shank of the plug.
6 DC Trigger Input and Output
Many audio/video preamplifiers can supply a DC control voltage
to associated equipment in order to induce desired behavior. Your
Classé amplifier can take advantage of these capabilities in order to
be switched between Operate and Standby automatically, perhaps
in concert with the A/V preamp itself.
Two 1 / 8 th -inch mini-jacks provide this remote-controlled turn-on
(that is, toggling between Operate and Standby) of the amplifier.
These jacks provide a simple pass-through of the control voltage
from one to the other, allowing you to "daisy-chain" a series of
amplifiers quite easily.
The remote trigger will be operated by the presence of 3–12 volts
DC, with tip polarity as shown below:
7 RS 232 Control Port
This port has two purposes:
• downloading new operating software into your amplifier
(should new features ever be added, for example)
• for external control of your amplifier by systems such as
AMX ™ and Crestron
For more information, please contact your dealer and ask about
home automation systems.
8 AC Mains Input
An IEC standard power cord is used in the CA-M400. Plug the
cord into the high-current IEC outlet provided, and then into a
suitable wall outlet.
3-12 volts @
less than 100 mA
3-12 volts @
less than 100 mA
™
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