Page 44
Com-Tech 200/400/800/1600 Power Amplifiers
8 Accessories
8.1
P.I.P.
Modules
One advantage of
Com-Tech
amplifiers is the ability to
customize them using
P.I.P.
(Programmable Input Pro-
cessor) modules.
Com-Tech
amplifiers are equipped
with an edge card connector inside the back panel
P.I.P.
compartment. The modules install easily:
FTE
Programmable
Input Processor (P.I.P.)
CH-2 INPUT CH-1 INPUT
+ – + –
P.I.P.-FTE includes all P.I.P.-FXT features, and adds
12 dB/octave RFI filters, variable 18 dB/octave high-
pass filters, and 6 dB/octave 3 kHz shelving networks
for “constant-directivity” horn equalization. Screw ter-
minal plugs are provided for input.
P. I. P.
3
12
GND
Programmable
Input Processor
CH-2 CH-1
DATA OUT
AUX DSPI
DATA IN
CROWN
BUS
PUSHPUSH
AUDIO IN AUDIO IN
IQ-P.I.P. v1.3 integrates the amplifier into Crown’s pat-
ented
IQ System
.
®
The
IQ System
provides centralized
computer control of 1 to 2,000 amplifiers. Each ampli-
fier channel can be monitored and controlled from an
inexpensive personal computer. Any combination of
mic- and line-level signals can also be mixed and routed
with optional
MPX-6
,
™
SMX-6
™
and
AMB-5
™
mixer/mul-
tiplexers, and the MRX series matrixers.
IQ-P.I.P. v1.4
Smart Amp
™
offers the monitoring and
control features of the IQ-P.I.P. v1.3
plus the capability
to function as a stand-alone unit as part of the
IQ
System’s distributed intelligence
.
™
Features include a
smooth output limiter for transparent loudspeaker pro-
tection, power supply gates for energy savings,
ODEP
conservation which protects the output devices with
precision input signal control, interrupt-driven report-
ing that lets you define error conditions, and configur-
able short detection.
CLP
Programmable
Input Processor (P.I.P.)
3
12
GND
INPUT INPUT
CH-2 CH-1
PUSHPUSH
P.I.P.-CLP is designed to detect and prevent overload.
Its compressor is driven by the amplifier’s built-in
IOC
error detection circuitry. Unlike typical signal-driven
compressors, it only compresses the signal to prevent
overload. It can deliver up to 13 dB of additional head-
room without being noticeable.
Note: In Fire Protective Signaling Systems, the Com-Tech 200 may
use the P.I.P.-BB, P.I.P.-ISO or P.I.P.-UL1711, however the Com-Tech
400, 800 and 1600 may
only use the P.I.P.-UL1711.
WARNING: Disconnect power to the amplifier when in-
stalling or removing a
P.I.P.
module.
Here are some of the available
P.I.P.
modules:
AMC
Programmable
Input Processor (P.I.P.)
OUTPUT INPUT
3
12
GND
P.I.P.-AMCb unites many features of the P.I.P.-XOV and
P.I.P.-CLP. It offers a variable 4th-order Linkwitz-Riley
crossover and an
IOC
-driven, variable threshold com-
pressor. In addition, it provides “constant-directivity”
horn equalization and filter-assisted B
6
vented box
equalization. Biamping and triamping capabilities are
provided via XLR connectors.
Programmable
Input Processor (P.I.P.)
INPUT
3
12
GND
PUSH
CH-2 CH-1
PUSH
INPUT
EDC
P.I.P.-EDCb combines a sophisticated error-driven com-
pressor and smooth limiter with a subsonic filter for each
channel. The compressors have adjustable attack and
release times, and can be set to track each other. The
compressors activate when a signal will clip the input,
an
IOC
error occurs, or the output exceeds the selected
threshold. The subsonic filters have corner frequencies
of 24, 28, 32 and 36 Hz.
P
.I.P
.
M
O
D
U
L
E
BACK PANEL
OF AMPLIFIER
Fig. 8.1 Installing a P.I.P. Module
To Next Page
Loading...
Need help?
General
