Crown IQ-PIP-LITE User manual

Obtaining Other Language Versions: To obtain information in another language about
the use of this product, please contact your local Crown Distributor. If you need assistance
locating your local distributor, please contact Crown at 574-294-8000.
This manual does not include all of the details of design, production, or variations of the
equipment. Nor does it cover every possible situation which may arise during installation,
operation or maintenance. If special assistance is needed beyond the scope of this manual,
please contact the Crown Technical Support Group.
The information provided in this manual was deemed accurate as of the publication date.
However, updates to this information may have occurred. To obtain the latest version of this
manual, please visit the Crown website at www.crownaudio.com.
Trademark Notice: Crown, Amcron, Com-Tech, Macro-Tech, IQ and IQ System are reg-
istered trademarks of Crown International. SmartAmp, IQ2, PIP and PIP2 are trademarks of
Crown International. Other trademarks are the property of their respective owners.
Some models may be exported under the name Amcron.®
©2002 by Crown Audio Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A.
Telephone: [phone]
IQ-PIP-Lite Operation Manual
134719-1A
11/02
An IQ System® Programmable Input Processor with TCP/IQ
Connectivity, SmartAmp™ Features and Load Supervision for
Crown PIP2™-Compatible Amplifiers.

IQ-PIP-Lite
page 2 Operation Manual
Crown Technical Support
1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A.
Phone: [phone] (North America, Puerto Rico and Virgin Islands) or 574-294-8200
Fax: [phone] Internet: http://www.crownaudio.com
FCC COMPLIANCE NOTICE
This device complies with part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
CAUTION: Changes or modifications not expressly approved by the party responsible for
complicance could void the user’s authority to operate the euqipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or televi-
sion reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
WARNING
TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE!
WATCH FOR THIS SYMBOL. The exclamation point triangle is used to alert
the user to important oprating or maintenance instructions.

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Operation Manual
IQ-PIP-Lite
DECLARATION of CONFORMITY
Crown Audio, Inc.
1718 W. Mishawaka Rd.
Elkhart, IN 46517 U.S.A.
EMC Standards:
EN 55103-1:1995 Electromagnetic Compatibility – Product Family Standard for Audio, Video, Audio-
Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 1: Emissions
EN 55103-1:1995 Magnetic Field Emissions-Annex A @ 10 cm and 1 M
EN 61000-3-3:1995 Limitation of Voltage Fluctuations and Flicker in Low-Voltage Supply Systems
Rated Current ≤16A
EN 55022:1992 + A1:1995 & A2:1997 Limits and Methods of Measure-ment of Radio Disturbance
Characteristics of ITE: Radiated, Class B Limits; Conducted, Class A
EN 55103-2:1996 Electromagnetic Compatibility – Product Family Standard for Audio, Video, Audio-
Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 2: Immunity
EN 61000-4-2:1995 Electrostatic Discharge Immunity (Environment E2-Criteria B, 4k V Contact, 8k V
Air Discharge)
EN 61000-4-3:1996 Radiated, Radio-Frequency, Electromagnetic Immunity (Environment E2, criteria A)
EN 61000-4-4:1995 Electrical Fast Transient/Burst Immunity (Criteria B)
EN 61000-4-5:1995 Surge Immunity (Criteria B)
EN 61000-4-6:1996 Immunity to Conducted Disturbances Induced by Radio-Frequency Fields
(Criteria A)
EN 61000-4-11:1994 Voltage Dips, Short Interruptions and Voltage Variation
Safety Standard:
EN 60065: 1998 Safety Requirements – Audio Video and Similar Electronic Apparatus
European Representative’s Name and Address:
Nick Owen
19 Clos Nant Coslech
Pontprennau
Cardiff
CF23 8ND United Kingdom
Equipment Type: Control System Components
Family Name: IQ
Model Name: IQ-PIP-Lite
Title: Senior Vice President of Manufacturing
Date of Issue: October 1, 2002
Susan Whitfield
574-294-8289
[email protected]om
Signed
Larry Colburn

IQ-PIP-Lite
page 4 Operation Manual
Quick Install Procedure
This procedure is provided for those who would like to install the IQ-PIP-Lite in the shortest time
possible and are already familiar with Crown’s IQ System and TCP/IQ. Less experienced installers
or those wishing a full explanation of the installation procedure are encouraged to go to Section 3
where the full installation procedure is described.
Prepare the amplifier:
1. Turn down the level controls of the amplifier and turn off the amplifier.
2. Unplug the power cord from the AC mains.
3. Remove the existing PIP or cover from the amplifier back panel (two screws).
Install the IQ-PIP-Lite into the amplifier:
4. Carefully ground yourself to the chassis of the amplifier before installing the IQ-PIP-Lite. It is
a good idea to maintain ground contact between yourself and the amplifier while inserting the
module into the amplifier in the next step.
5. Turn the PIP upside down so the ribbon cable connectors located along the back edge on the
underside of the module can be clearly seen (See Figure 3.1). Attach the ribbon cables from
the amplifier to the ribbon-cable connectors. The 20 pin cable (A) should connect to the con-
nector closest to the corner and the 18 pin cable (B) should connect to the other connector.
Important: Be careful when attaching the ribbon cable to the connector. Applying pressure to an
improperly seated connector could cause the keying tabs, which ensure proper pin alignment, to
break. Connecting the ribbon cables with improper pin alignment will likely result in damage to
the PIP.
6. With both cables firmly attached, turn the IQ-PIP-Lite back to an upright position. Verify that
the cables run untwisted between the amplifier and the PIP. Insert the PIP into the amplifier
while taking care not to crimp, pinch or stretch the ribbon cables.
7. Tighten the two PIP mounting screws until it is secured to the amplifier back panel, making
sure the supplied star-washers penetrate the powder-coat finish of the PIP panel for a good
ground connection.
Install the wiring:
8. Connect the IQ-PIP-Lite to the Ethernet network used for TCP/IQ control. Each PIP must con-
nect to its own port on a 100 Megabit Ethernet Switch with a standard straight CAT 5 network
cable. (See Section 3.4 if more information is needed.) A 10 Megabit connection will work but
is not recommended for systems with a high number of components.
9. Connect the audio signal wiring to the IQ-PIP-Lite. (See Section 5.1 for more information.)
10. Connect the amplifier back to the AC mains and reset the back panel input attenuators to the
proper levels.

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Operation Manual
IQ-PIP-Lite
Table of Contents
FCC Compliance Notice .............................................................. 2
Declaration of Conformity ............................................................ 3
Quick Install Procedure ................................................................ 4
Illustrations .................................................................................. 7
1 Welcome ..................................................... 8
1.1 Unpacking ........................................................................ 8
1.2 How to Use This Manual ................................................... 9
2 Controls, Indicators and Connectors ..................... 10
3 Installation .................................................. 11
3.1 Prepare the IQ-PIP-Lite ..................................................... 11
3.2 Prepare the Amplifier ........................................................ 11
3.3 Install the PIP Lite Into the Amplifier ................................. 12
3.4 Install the Wiring .............................................................. 13
4 Operation .................................................... 14
4.1 Hardware ........................................................................... 15
4.1.1 Data Indicator ........................................................... 15
4.1.2 Preset Indicator ......................................................... 15
4.1.3 Network Connector ................................................... 15
4.1.4 Link/Activity Indicator ............................................... 15
4.1.5 100Mb Indicator ....................................................... 15
4.1.6 Balanced Audio Inputs .............................................. 15
4.1.7 Aux Input/Output and Listen Bus Connector ............. 15
4.1.8 Preset/Reset Switch .................................................. 16
4.2 Amplifier Control and Monitoring ...................................... 17
4.2.1 User Presets ............................................................. 17
4.2.2 Clip Event Monitor .................................................... 17
4.2.3 Input Signal Level Monitor ....................................... 17
4.2.4 Output Signal Level Monitor ..................................... 17
4.2.5 Thermal Headroom Level Monitor ........................... 18
4.2.6 Power/Standby Control ............................................. 18
4.2.7 Signal Mute .............................................................. 18
4.2.8 Polarity Inverter ....................................................... 18
4.2.9 Input Signal Attenuator ............................................. 18
4.2.10 Dynamic Gain Monitors (Ghost Faders) ................. 18
4.2.11 Memory Backup ..................................................... 18
4.2.12 Amplifier Information .............................................. 18
4.2.13 User and Channel Labels ........................................ 19
4.2.14 Amplifier Mode ....................................................... 19
4.2.15 Amplifier Output Mode ........................................... 19
4.2.16 Line Voltage Monitor .............................................. 19
4.2.17 Error Reporting ....................................................... 19
4.2.18 Auto Standby .......................................................... 20
4.2.19 Input Signal Compressor/Limiter ............................ 20
4.2.20 Peak Voltage Limiter ............................................... 21

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4.2.21 Average Power Limiter ............................................ 21
4.2.22 Clip Eliminator ........................................................ 21
4.2.23 Thermal Limiter ...................................................... 21
4.2.24 Limiter Tie .............................................................. 22
4.2.25 Load Supervision ................................................... 22
5 Audio Signal Wiring and Network Basics ............... 23
5.1 A Closer Look at Audio Signal Wiring .............................. 23
5.2 TCP/IQ Network Basics .................................................... 24
6 Advanced Features and Options .......................... 28
6.1 Using the AUX Connector ................................................. 28
6.1.1 AUX Output ............................................................... 28
6.1.2 AUX Input ................................................................. 30
6.2 Load Supervision Applications ......................................... 30
6.2.1 Typical Load Characteristics ..................................... 31
7 Specifications .............................................. 32
7.1 General ............................................................................. 32
7.2 Audio ................................................................................ 32
8 Using the IQ-PIP-Lite with the IQ PIP USP2 Adapter .. 33
9 Troubleshooting ............................................. 37
10 Service ................................................................................. 38
10.1 Worldwide Service .......................................................... 38
10.2 US and Canada Service .................................................. 38
10.2.1 Factory Service ....................................................... 38
10.2.2 Factory Service Shipping Instructions .................... 38
11 Warranty .................................................... 40
Factory Service Information Form ................................................ 43
Table of Contents (continued)

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Operation Manual
IQ-PIP-Lite
Illustrations
2.1 Front Panel Controls, Connectors and Indicators .................. 9
3.1 Installing the IQ-PIP-Lite into the Amplifier ........................... 11
4.1 Signal Flow Block Diagram .................................................... 13
5.1 Input Wiring for the IQ-PIP-Lite ............................................. 22
5.2 A TCP/IQ Network .................................................................. 23
5.3 Multiple Network Communication Via an IP Router ............... 25
6.1 AUX Output Control of a Relay ............................................... 27
6.2 AUX Out Use to Switch In a Redundant Amplifier On Fault..... 28
6.3 Wiring for a Remote Preset Selector ...................................... 28
8.1 “General” Tab Showing Indentification of IQ-PIP-USP2
Adapter .................................................................................. 33
8.2 “Signal Path” Tab Showing Peak Voltage and Average
Power Limiting Disabled ........................................................ 33
8.3 “Peak Voltage Limiter” Block Disabled on “Signal Path”
Tab ......................................................................................... 34
8.4 “Average Power Limiter” Block Disabled on “Signal Path”
Tab ......................................................................................... 34
8.5 “Error Reporting” Tab Showing Fault and Load Error
Reporting Disabled ................................................................ 35
8.6 “Load Supervision” Tab Showing Load Supervision
Disabled ............................................................................... 35

IQ-PIP-Lite
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1 Welcome
The IQ-PIP-Lite is a PIP™ (Programmable Input Processor) input module for PIP2™
compatible amplifiers.* It connects the amplifier to a 100 Mb Ethernet network allowing it
to be remotely controlled and monitored via IQ®.
The IQ-PIP-Lite is a TCP/IQ series component. This means it connects to an IQ System®
via 100 Mb Ethernet. This provides faster IQ communications than the previous current
loop, IQ bus, connectivity method. With TCP/IQ, a large (or small) system can be intercon-
nected using standard off-the-shelf 100 Mb Ethernet components (Switches, NICs, and
cables). The IQ-PIP-Lite can also be connected to the same network used to pass CobraNet
audio .1
The audio path in the IQ-PIP-Lite is processed totally in the analog domain without the
inherent noise induced by analog-to-digital conversions. While DSP-type functions cannot
be supported with this type of architecture, the standard SmartAmp™ features are. These
features include input compressors, multimode output limiters, error reporting and load
monitoring.
1.1 Unpacking
The unit is shipped in a protective antistatic bag. CAUTION: STATIC ELECTRICITY
MAY DAMAGE THE UNIT. Use caution when handling the unit. Carefully ground your-
self BEFORE touching the unit. Avoided unnecessary touching the components or solder
pads on the circuit board. It is best to handle the unit by its front panel only.
Please unpack and inspect the unit for damage that may have occurred during transit. If
damage is found, notify the transportation company immediately. Only the consignee may
initiate a claim with the carrier for shipping damage. Crown will be happy to cooperate fully
as needed. Save the shipping carton as evidence of damage for the shipper's inspection.
Even if the unit arrived in perfect condition, as most do, save all the packing materials.
NEVER SHIP THE UNIT WITHOUT THE FACTORY PACK.
*A PIP2™-compatible amplifier is necessary to use the IQ-PIP-Lite. To determine if the amplifier is PIP2
compatible, look for the logo on the back of the amplifier. The IQ-PIP-Lite is NOT compatible
with older Crown PIP amplifiers unless a USP2 adapter is first installed in the amplifier. See Section 8
for more detail on the USP2 adapter.
1Note that the I.Q.-P.I.P.-Lite cannot receive or transmit CobraNet audio. Plese use the
IQ-P.I.P.-USP3/CN if this function is desired.
Figure 1.1 IQ-PIP-Lite Module

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Operation Manual
IQ-PIP-Lite
1.2 How to Use This Manual
This manual provides you with the necessary information to safely and correctly set up and
operate your amplifier accessory. It does not cover every aspect of installation, setup or
operation that might occur under every condition. For additional information, please con-
sult Crown Tech Support, your system installer or retailer.
We strongly recommend that you read all instructions, warnings and cautions contained in
this manual. Also, for your protection, please send in your warranty registration card today,
or register online at www.crownaudio.com. And save your bill of sale – it’s your official
proof of purchase.

IQ-PIP-Lite
page 10 Operation Manual
2 Controls, Indicators and Connectors
Figure 2.1 Front Panel Controls, Indicators and Connectors
A. Balanced Audio Input Connectors
3-pin removable barrier-strip connectors, one per channel.
B. Preset Indicator
Signals the number of the current preset, if active, by flashing a series of flashes equal to
the current preset number. See Section 4.1.2.
C. Reset/Preset Switch
Used to change presets, restore settings to factory default or restore all the presets to the
factory defaults. During operations of the switch, the Data indicator flashes as an aid to
the user. See Section 4.1.8.
D. IQ Data Indicator
Flashes when the IQ-PIP-Lite receives a valid TCP/IQ command that is addressed to the
IQ-PIP-Lite. See Section 4.1.1.
E. AUX Connector
Configurable for AUX input, AUX output, or Listen Bus. See Section 6.1.
F. Network Connector
The network connector is a standard RJ-45 connector that allows the IQ-PIP-Lite to con-
nect to an Ethernet network. Connection is made using a standard CAT 5 cable to a net-
work switch port. The Link Activity LED indicates data activity on the network line. The
100 MB LED indicates that the data is at 100 Megabits. See Section 4.1.3.
G. Mounting Holes

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Operation Manual
IQ-PIP-Lite
3 Installation
Before beginning, please carefully note:
CAUTION: STATIC ELECTRICITY MAY DAMAGE THE UNIT. Use caution when handling
the unit. Carefully ground yourself BEFORE touching the unit. Avoided unnecessary touching
the components or solder pads on the circuit board. It is best to handle the unit by its front
panel only.
3.1 Prepare the IQ-PIP-Lite
The IQ-PIP-Lite comes ready to install in the amplifier. This unit does not require setting the
“IQ address” as the older current loop, Crown bus, units did. Each IQ-PIP-Lite (as well as all
TCP/IQ components) come preprogrammed with a unique network (MAC) address. The IQ
address is then set (automatically or manually) via the IQ control software. (Also a TCP/IP net-
work address will be set automatically.)
3.2 Prepare the Amplifier
Turn down the amplifier level controls (full counterclockwise) and turn off the
amplifier.
Disconnect the amplifier's power cord.
Remove the existing PIP module from the amplifier back panel (two screws). This may involve
disconnecting the PIP module from a PIP2 input adapter. If a PIP2 input adapter is present,
remove ribbon cables from the adapter.

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3.3 Install the IQ-PIP-Lite Into the
Amplifier
Carefully ground yourself to the chassis of
the amplifier before installing the IQ-PIP-Lite. It
is a good idea to maintain ground contact between
yourself and the amplifier while inserting the mod-
ule into the amplifier.
Connect the PIP module to the amplifier.
1. Turn the PIP module upside down so the ribbon
cable connectors located along the back edge on
the underside of the module can be clearly seen
(See Figure 3.1)
2. Attach the ribbon cables from the amplifier to the
ribbon-cable connectors. The 20-pin cable (A)
should connect to the connector closest to the
corner and the 18 pin cable (B) should connect
to the other connector.
Important: Be careful when attaching the ribbon
cable to the connector. Appling pres-
sure to an improperly seated connec-
tor could cause the keying tabs,
which ensure proper pin alignment,
to break. Connecting the ribbon cables with
improper pin alignment will likely result in dam-
age to the PIP module.
3. Set amplifier sensitivity.
Mount the PIP module in the amplifier.
1. With both cables firmly attached, turn the IQ-
PIP-Lite back to an upright position. Verify that
the cables run untwisted between the amplifier
and the PIP module.
2. Insert the PIP module into the amplifier while
taking care not to crimp, pinch or stretch the rib-
bon cables.
3. Fasten the PIP module to the amplifier rear panel
with the two supplied mounting screws. Be sure
to use the supplied star washers for a good
ground connection.
Figure 3.1 Installing the IQ-PIP-Lite Into the Amplifier

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Operation Manual
IQ-PIP-Lite
3.4 Install the Wiring
1. Using a straight CAT 5 cable, connect the network connector to a 100 Mb port on an Ether-
net switch that is used to form the TCP/IQ control network . For more detail see section 5.2,
TCP/IQ Network Basics. If the PIP module is not to be connected to a TCP/IQ control net-
work, it can be temporarily connected to a computer’s Ethernet port with a twisted cable (TX
and RX pairs switched) to set up the PIP module for desired operation.
2. Connect the audio input wiring. The IQ-PIP-Lite module is equipped with removable bar-
rier block connectors for each channel’s input. See Section 5.1 for more detail on audio
wiring.
3. Connect the AUX wiring if used. See Section 6.1 for more information.
4. Reconnect the amplifier's power cord.
5. Adjust the attenuator levels for optimum system gain on both the amplifier and on the IQ-
PIP-Lite’s control panel (with IQ control software version 5.2 or higher).

IQ-PIP-Lite
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4 Operation
With an IQ-PIP-Lite module, a Crown PIP2 amplifier can be monitored and controlled from
a remote location through the use of an IQ system. The PIP module features SmartAmp
capabilities that enable the amplifier to function automatically. For example, the IQ-PIP-Lite
can automatically turn off the high voltage supplies of the amplifier when no input signal is
present. This can lower electrical usage and provide long-term cost savings. The IQ-PIP-
Lite can also automatically limit the audio signal, and detect and report various problems.
In addition, the Load Supervision feature can verify the status of the loads in real time.
The IQ-PIP-Lite module uses Crown's TCP/IQ protocol allowing it to be controlled over an
Ethernet network composed of standard, off-the-shelf 100Mb Ethernet components. Con-
nection to the control computer is made through its standard network adapter. This protocol
still allows the IQ software greater flexibility with custom control pages and third-party con-
troller support (AMX and Crestron) than the older IQ2 protocol.
The following sections describe the IQ PIP features and operation. Most features are con-
trolled and configured using IQ for Windows software version 5.2 or higher. Please contact
a Crown representative or Crown’s Technical Support Group if you are unfamiliar with IQ
software. Figure 4.1 shows the system block diagram.
Figure 4.1 Signal Flow Block Diagram

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Operation Manual
IQ-PIP-Lite
4.1 Hardware
4.1.1 Data Indicator
An amber Data indicator is provided on the front panel. It flashes whenever a command
addressed to the IQ-PIP-Lite is received. To assist with troubleshooting, an option that
forces the data indicator to remain lit is available through the IQ software. Some Crown
amplifiers also have a data indicator on their front panels. In these cases this indicator will
light simultaneously as the PIP’s Data indicator.
4.1.2 Preset Indicator
A green Preset indicator is provided on the front panel. This indicator signals the number of
the current preset, if active, by continually flashing a series of flashes equal to the current
preset number, followed by a pause. A preset is considered “active” if the PIP settings
match those in the selected preset. If a change is made to any setting then the preset is con-
sidered “inactive,” and the indicator stops flashing.
4.1.3 Network Connector
The network connector is a standard RJ-45 connector that allows the IQ-PIP-Lite to connect
to an Ethernet network. Connection is made using a standard CAT 5 cable to a network
switch port. In cases where an IQ-PIP-Lite is used in stand-alone mode (not connected to
an network) it can be configured using a twisted cable (TX and RX pairs swapped) directly
to a computer’s network adapter port.
4.1.4 Link/Activity Indicator
The yellow Link/Activity indicator is provided on the network connector to display the sta-
tus of the Ethernet connection. Whenever the IQ-PIP-Lite is properly connected to another
functioning network port, the indicator lights. When the IQ-PIP-Lite detects the presence of
network traffic, the indicator flashes. Note: This differs from the Data indicator mentioned
previously in that it flashes for all network traffic, not just for commands addressed to this
component.
4.1.5 100 Mb Indicator
The green 100 Mb indicator is also provided on the network connector. It lights when the
IQ-PIP-Lite detects that it is connected with a 100 Megabit connection. Note: The IQ-PIP-
Lite is compatible with 10 Megabit Ethernet networks. However, a 10 Megabit network is
not recommended for systems with a large number of IQ components
4.1.6 Balanced Audio Inputs
The input audio for each channel is connected through a three-pin removable barrier block.
For amplifiers configured in bridge or parallel-mono mode, use only the Channel 1 input.
(Be sure to select the configured mode with the IQ software control and amplifier back panel
switch.)
4.1.7 Aux Input/Output and Listen Bus Connector
An RJ-11 connector provides three functions: AUX output, AUX input and Listen Bus. The
AUX output is a multifunctional control output that delivers 15 VDC limited to 15 mA. It
can be configured in three modes:

IQ-PIP-Lite
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• Manual mode: The output is simply controlled with a command from the IQ software.
• Error reporting mode: The AUX out is active when the IQ-PIP-Lite detects an error. Each
error source (Thermal, Clip, Load, Amp Fault, and Line Voltage) can be individually
enabled to activate the AUX output when the error conditions are met.
• Flash preset mode: The AUX output can be configured to flash the preset number like the
front panel indicator.
An inversion control allows the AUX output functionally to be inverted for the manual and
error reporting modes. The inversion control is ignored for flash preset mode.
The AUX input is a two-state input with a high state defined as voltage between 4 and 15
VDC. The low state is defined as voltages between 0 and 1.6 VDC. It has a 10K input
impedance. The AUX input can be configured in several modes:
• None: In this mode the IQ-PIP-Lite makes no changes to its operation. However, the AUX
input status can be monitored through the IQ software and used for functions within the
software.
• Mute Channel 1, Mute Channel 2, and Mute both functions each mute their respective
channels when the AUX input is active. Likewise, the Power Channel 1, Power Channel 2,
and Power Off Both functions disable the respective channels during an active AUX input.
• The cycle preset mode will advance the IQ-PIP-Lite through a defined range of presets
on a low-to-high transition of the AUX input. The inversion object changes the activity to a
high-to-low transition. The range of presets is defined by the max preset and min preset
controls. Once the max preset is reached the next defined AUX input event will cycle the PIP
to the minimum preset.
• AUX input inversion: This control allows the low state to activate the selected function.
Normally, the high state activates the selected AUX input function.
The AUX port provides a power supply for the AUX input. This 15 VDC at 15 mA supply can
be connected through a switch to the AUX input. This allows a simple switch closure to
offset the aux input without the need of an external power supply. See Section 6.1 for details
on using the AUX port.
The AUX port is also used for the Listen Bus connection. Two pins of the connector pro-
vide a balanced line-level audio output that can be selectively driven by either channel
under IQ software control. Multiple IQ-PIP-Lite modules can have their Listen Bus outputs
wired onto a single bus allowing the system operator to listen to any of their outputs.
4.1.8 Preset/Reset Switch
The Preset/Reset switch is a recessed pushbutton located between the Data and Preset indi-
cators. It is activated by a straightened paper clip or similar object. This switch can be used
to change presets, restore settings to factory default or restore all the presets to the factory
defaults. During operations of the switch, the Data indicator flashes as an aid to the user.

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Operation Manual
IQ-PIP-Lite
To select a preset: Remove all audio input signals. With the IQ-PIP-Lite powered up,
momentarily hold the preset switch in for one flash of the Data indicator (less than 2 sec-
onds) and then release. The IQ-PIP-Lite will load the next preset in the defined preset
range. The range of presets is defined by the Maximum Preset and Minimum Preset con-
trols. Once the Maximum Preset is reached the next momentary depression of the switch
will cycle the PIP to the Minimum Preset. The Preset indicator will flash the number of the
selected preset followed by a pause. Restore the audio input signals.
To restore the unit to factory default settings: Remove all audio input signals. Hold
the Reset/Preset switch in for two flashes of the Data light (longer than 2 seconds). The
Data indicator will flash rapidly for a moment. Restore the audio input signals.
To restore the unit including presets to factory default settings: Remove all
audio input signals. Hold the Reset/Preset switch while applying power to the unit. The
Data and Preset indicator will both light. Release the switch within 5 seconds (before the
Data and Preset indicators go out). The Data indicator will flash rapidly for a moment.
Restore the audio input signals.
4.2 Amplifier Control and Monitoring
4.2.1 User Presets
The control settings for all the functions can be stored as presets. A total of ten presets can
be saved in the IQ-PIP-Lite’s nonvolatile memory. Each preset can be named with a 30
character name describing its function, which is also stored in the PIP’s memory.
• The Store Preset Control saves the current setting to the specified preset.
• The Recall Preset Control recalls the specified preset settings.
• The Preset Valid Monitor indicates if a change has been made to any setting since the
last time a preset has be saved or recalled.
• The Last Stored or Recalled Preset Monitor indicates what the Last Stored or Recalled
preset is.
4.2.2 Clip Event Monitor
A clip detector is provided each channel. These monitors will indicate any clip condition
(> 0.05% distortion) in the amplifier channel. The clip detectors also can indicate certain
errors (See Section 4.2.17).
4.2.3 Input Signal Level Monitor
The input signal level of each channel can be monitored. The measurement range is from
+20 dBu to –40 dBu with 0.5 dB resolution.
4.2.4 Output Signal Level Monitor
The output signal level of each channel can be monitored. The measurement range is from
0 dB to –40 dB with 0.5 dB resolution. The monitors are scaled so that 0 dB is referenced to
the full rated output voltage of the amplifier. In Com-Tech®amplifiers the scaling can be
changed between the rated 70V output and the rated 8-ohm level. For all other amplifier
models, the scale is set to the rated output level.

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4.2.5 Thermal Headroom Level Monitor
The thermal headroom level of each channel can be monitored with the IQ software. This
level represents the percent of available power/thermal capacity that is currently being used
within the output section of the amplifier. When the thermal headroom level reaches 100%,
the amplifier cannot produce any more power and it will begin to protect the output devices
by limiting their drive level. The thermal limiter feature of the IQ-PIP-Lite can be set to
engage at a pre-selected thermal level. (See Section 4.2.23.)
4.2.6 Power/Standby Control
Each channel can be independently turned on and off.
4.2.7 Signal Mute
The output signal of each channel can be independently muted. This function produces 60
dB or more of attenuation.
4.2.8 Polarity Inverter
The input signal polarity of each channel can be independently inverted.
4.2.9 Input Signal Attenuator
Each input signal can be attenuated under software control. The attenuation range is +20 dB
to –80 dB in 0.5 dB steps. (Zero dB equals unity gain.)
4.2.10 Dynamic Gain Monitors (Ghost Faders)
These indicators let the user monitor the actual signal path gain. The actual gain may vary
from the input attenuator settings as a result of compression and limiting. On standard IQ
software control panels, these indicators appear as flying ghost faders behind the input
attenuator controls.
4.2.11 Memory Backup
In normal operation, the IQ-PIP-Lite stores all its settings in nonvolatile memory. When the
power is removed from the amplifier and then restored, the IQ-PIP-Lite uses these backed-
up settings for its functions. This feature can be disabled with the memory backup enable
control. When the memory backup is disabled, the IQ-PIP-Lite stops storing changes made
to its settings. When the next power-up occurs the IQ-PIP-Lite uses the settings that were
active when the backup feature was disabled.
CAUTION: Care should be taken to backup “safe” levels for the input attenuator controls.
It is possible for the memory backup feature to be disabled with “unsafe” levels stored. This
may result in significantly greater system gain the next time power is reapplied to the IQ-
PIP-Lite.
4.2.12 Amplifier Information
At startup, the IQ-PIP-Lite extracts several useful items of information about the host ampli-
fier. These include manufacturer, model, date code, and serial number. This information is
stored in the IQ software system inventory and is displayed on the software control panels.

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Operation Manual
IQ-PIP-Lite
4.2.13 User and Channel Labels
The IQ-PIP-Lite can store two user labels and two channel labels. These labels are 30-char-
acter strings that can be set by the user to indicate the function of the amplifier and its
channels.
4.2.14 Amplifier Mode
The host amplifier’s mode status — Stereo (Dual), Bridge-Mono, or Parallel-Mono — can
be sent to the IQ-PIP-Lite with this control. IQ software then becomes aware of the ampli-
fier's mode and the IQ-PIP-Lite then ignores many of the Channel 2 controls. The actual
mode of the amplifier cannot be controlled by this function. The amplifier mode must be
selected with the switch located on the amplifier rear panel.
4.2.15 Amplifier Output Mode
On Com-Tech series amplifiers, the output mode (70V or 8-4 ohm) should be set on the IQ-
PIP-Lite with these controls. This allows the PIP to scale its output meters appropriately
and lets the IQ software become aware of the settings. The actual mode of the amplifier can-
not be controlled by this function. The amplifier output mode, for each channel, must be
selected with the switches located on the rear of the amplifier.
4.2.16 Line Voltage Monitor
The AC line voltage supplied to the amplifier can be monitored with this function. Not all
amplifiers support this.
4.2.17 Error Reporting
The IQ-PIP-Lite can detect four different error conditions per channel and errors in the AC
line voltage. Each error type can be individually configured to report the error through the
IQ network and/or the AUX port. Network reported errors appear in the IQ System Error
Window. The IQ software offers many options to further report errors, including audible
alerts, printout, email, pager, serial port and fax. The following describes each error source.
CLIP: The PIP can be configured to report if an excessive number of clip events occur in
either amplifier channel. The clip events are consider an error if they exceed the defined
count per the defined unit of time. The Count Control sets the maximum number of events
before the error is reported. The range is 1 to 100. The Time Control defines the amount of
time that the events are counted before starting the counting process over. Its range is 1 to
10 seconds. Note: Clip events are defined as the start of each clip and every 10
milliseconds the amplifier is in clip thereafter. Using a high count setting with a short time
setting may result in clip error never being detected.
THERMAL: Errors can be generated for excessive temperature in the output section of the
amplifier channel. The Threshold Control sets the level that, if exceeded, will generate the
error report. This control has a range of 1 to 100%.
FAULT: Some PIP2-compatible amplifiers provide a fault signal to the IQ-PIP-Lite if it
detects some catastrophic amplifier failure.

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LOAD: If the load monitoring feature is activated, an error report can be generated if the
load impedance falls outside the pre-selected range. See Section 4.2.25 for instructions on
setting up load monitoring.
4.2.18 Auto Standby
The Auto Standby feature automatically turns off either amplifier channel when no audio
input signal has been detected for a period of time. The channels are controlled indepen-
dently. There are three parameters which control this feature for each channel:
Enable: Enables or disables this feature.
Input Gate Level: Sets the level, in dBu, below which the high-voltage supply of an
amplifier channel will be turned off. The range is from +16 dBu to –40 dBu.
Turn-Off Delay: Sets the time, in minutes, that the input signal must remain below the
gate level before the channel will be disabled. The range is from 0 to 255 minutes. A setting
of zero is provided to facilitate the setup of the input gate level.
4.2.19 Input Signal Compressor/Limiter
An input signal compressor/limiter is available for each channel. Five parameters control
this feature:
Enable: Enables or disables this function.
Threshold: Sets the level, in dBu, above which the compressor begins to attenuate the
input signal. This level corresponds to the input level meter reading. The compressor is
“feed-forward,” meaning that the level detection point is located before the gain control
stage. The range is from +16 dBu to –40 dBu.
Attack Time: Sets the attack time of the compressor. The attack time is defined as the time
it takes the compressor to attenuate the signal gain by 20 dB. The range is from 1 millisec-
ond to 0.1 second.
Release Time: Sets the release time of the compressor. The release time is defined as the
time it takes the compressor to increase the signal gain by 20 dB. The range is from
10 milliseconds to 10 seconds.
Hold Time: Sets the hold time of the compressor. The hold time is defined as the time
between when the input signal goes back below the threshold until the compressor starts to
release. The range is from 0 seconds to 10 seconds.
Compression Ratio: Sets the compression ratio of the compressor. The ratio is the rela-
tion between the amount of attenuation applied by the compressor verses the amount that
the input signal is over the threshold. The available settings are 2:1 to 32:1.
Beyond the three controls for each channel, a single-control Compressor Tie connects
the compressors together. The compressors are tied at their sense points, meaning that the