Ir Input Tip Polarity - PROCEED PRE User Manual

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IR input tip polarity

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The pin assignments of these XLR-type male outputs are:
Pin 1: Signal ground
Pin 2: Signal + (non-inverting)
1 2
3 Pin 3: Signal – (inverting)
Connector ground lug: chassis ground
Refer to your power amplifier's operating manual to verify that the pin
assignments of its input connectors correspond to the PRE. If not, wire
the cable so that the appropriate output pin connects to the equivalent
input pin.
Connect the right-channel and left-channel balanced
PRE to the appropriate balanced inputs of the power amplifier.
REMOTE IR
A 1 ⁄ " "mini" jack in the lower right corner of the rear panel provides di-
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rect access to the infrared control circuitry of the PRE. This
peater input facilitates a wide range of installation options. If desired, the
PRE may be placed inside a cabinet or outside the normal line-of-sight in
the listening area, with the controlling IR signal being relayed to the PRE
by any of a number of commercially-available IR repeaters.
The incoming signal for the remote IR input should conform to widely-
accepted IR repeater standards: that is, the signal present should be be-
tween 3-12 volts DC at less than 100 mA current, with a positive tip po-
larity, as shown below:
Y our Proceed dealer can help you take advantage of these design fea-
tures to maximize your system's versatility .
REMOTE TURN-ON
The PRE can control the status of certain compatible Madrigal power am-
plifiers, such as the Proceed AMP2. If this is desired, connect the
output of the PRE to the
turn-on
using a wire terminated with a
various lengths at electronics supply stores such as Radio Shack, or may
be custom made to length by your installing dealer). If more than one
Proceed amplifier is being used, simple "Y-adapters" may be used to
daisy-chain the turn-on signal for up to three AMPs turn-on inputs of
which are wired in parallel. The power amplifiers will then be turned
when the PRE is and placed in
on
.
standby
Note:the remote turn-on output provides a 300 msec long, 8 volt
positive pulse whenever the PRE turns on, and a 600 msec
long, 8 volt positive pulse whenever the PRE turns off. (This
information is sometimes needed in complex custom installa-
tions, and is provided for the designer/installer.)
– +
3-12 volts @ less
than 100 mA
input of those amplifiers
remote turn-on
1
⁄ " "mini" plug at both ends (available in
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when the PRE is placed in
standby
of the
main outputs
re-
remote IR
remote
on
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