Crown Audio IQ-P.I.P.-SMT - Manual (Page 23)

Page 23
IQ P.I.P.–SMT
57
45
40
30
27
44
39
30
30
14
14
30
24
17
30
51
Channel 1
57
45
40
30
27
44
39
24
44
14
39
30
24
17
30
51
Channel 2
Scale Values (Decimal)
Com-Tech 200 (8 ohm)
Com-Tech 400 (8 ohm)
Com-Tech 800 (8 ohm)
Com-Tech 1600 (8 ohm)
All Com-Tech (70-volt)
Macro-Tech 600
Macro-Tech 1200
Macro-Tech 2400
Macro-Tech 24x6
Macro-Tech 3600VZ
Macro-Tech 36x12
Macro-Tech 5000VZ
Macro-Tech 10000
Reference I
Reference II
PIP2-Compatible (Auto)
Amplifier
Model
Output Signal Pads
(JP4, JP5)
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
IN
IN
IN
OUT
Fig. 4.8 Amplifier Scale Factor Values
and Output Signal Pad Settings
Com-Tech amplifier in the 8-
ohm output mode and the
other channel in the 70-volt
output mode, it may be nec-
essary to configure the scale
factors differently for each
channel.
4.6 A Closer Look at Crown
Bus Wiring
The IQ–P.I.P.–SMT must be con-
nected to a Crown Bus loop having
an
IQ2-compatible IQ interface in or-
der for the IQ System to control or
monitor it. The Crown Bus is a serial
communication loop designed to
transmit IQ commands and data. As
implemented in the
IQ–P.I.P.–SMT, it
is a 20 milliamp current loop operat-
ing at a BAUD rate of 38.4 K. The
loop must be unbroken.
If the system includes an IQ–INT II
interface, it can accept eight different
Crown Bus loops or zones. Dividing
the sound system into different
zones, each with its own Crown Bus
loop, can have several advantages.
The following list contrasts those ad-
vantages with those of a single loop.
Multiloop Advantages
• A break in communication in
one loop does not affect
other loops.
• Over 250 IQ components of
the same type can be used in
a system.
• The same IQ address can be
used more than once (once
per loop per model).
Single Loop Advantages (with IQ-INT
II interfaces)
• The IQ System can send and
retrieve data faster in a single
loop.
• “Real time” level display of a
greater number of units is
possible.
The IQ–P.I.P.–SMT can be connected