Crestron CNXVTC-3 User Manual

CRESTRON

Contents

CNX Volume Control Expansion Card: CNXVTC-3 1

Description ..........................................................................................................................1

Functional Description ...........................................................................................1

Physical Description...............................................................................................1

Leading Specifications......................................................................................................... 2

Setup....................................................................................................................................2

Installation.............................................................................................................2

Preparation for Use................................................................................................. 3

Programming with SIMPL Windows.................................................................................4

How the Program Works ........................................................................................4

How to Create the Program.....................................................................................5

Problem Solving...................................................................................................................9

Troubleshooting .....................................................................................................9

Further Inquiries ....................................................................................................9

Return and Warranty Policies............................................................................................. 10

Merchandise Returns / Repair Service .................................................................. 10

CRESTRON Limited Warranty............................................................................ 10

Operations Guide - DOC. 8126 Contents •• i

CRESTRON

CNX Volume Control Expansion
Card: CNXVTC-3

Description

Functional Description

The CNXVTC-3 Volume Control Expansion Card provides volume/tone control

interface with one stereo and one mono or three independent mono channels.

Physical Description

The CNXVTC-3, shown below, is a circuit board fastened to an aluminum

faceplate. The card is manufactured to easily fit into an unoccupied slot in a

Crestron CNX Generation Control System.

CNXVTC-3 Faceplate

The faceplate contains three identical male, 6-pin connectors. Each connector

provides balance/unbalance input and output ports as well as chassis ground. Silk

screening is applied to the faceplate; pins are labeled A through C. Common ground

pins are labeled with a G. Three supplied 6-position connectors can be wired and

attached to connectors, A, B, and C.

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Width: 5.000 in (12.700 cm)

Leading Specifications

The three tables below provide a summary of leading specifications for the
CNXVTC-3. Dimensions are approximations rounded to the nearest hundredth
unit.

Leading Specifications of the CNXVTC-3

SPECIFICATION DETAILS

Power Requirements
SIMPL Windows
CNX Operating System
CNX Monitor
Dimensions

Volume Specifications of the CNXVTC-3 (Per Channel)

SPECIFICATION DETAILS

Input Impedance
Output Impedance
Input
Output
Total Harmonic Distortion (THD)
Hum and Noise (ref. 0 Dbv) -90 dB
Maximum Input Level (Flat Mode) 3.5V rms
Channel Separation -90 dB
Attenuation Range (Excluding Mute) 0 to -76 dB (maximum)
Mute -104 dB
Frequency Response 8 Hz to 60 KHz (-3 dB minimum)

24 VDC, network power; 6 Watts
Version 1.19.08 or later
Version 5.01.00 or later
Version 2.00 or later
Height: 0.980 in (2.490 cm)

10K or 600 Ohms
10 Ohms
Balanced or Unbalanced
Balanced or Unbalanced

-90 dB

Setup

Tone Specifications of the CNXVTC-3 (Per Channel)

SPECIFICATION DETAILS

Flatness (8 Hz to 60 KHz flat mode)
Bass Gain Range (100 Hz)
Bass Step Size (100 Hz)

+/- 0.2 dB
+/- 12 dB
2 dB

Treble Gain Range (10 KHz) +/- 12 dB

Treble Step Size (10 KHz)

2 dB

As of the date of manufacture, the unit has been tested and found to comply with
specifications for CE marking.

Installation

Items required to install the CNXVTC-3 are already attached to the unit. The only
tools required are a Phillips tip screwdriver and a grounding strap. Follow the
assembly procedure after this paragraph.

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CAUTION: The CNXVTC-3 contains electrostatic sensitive devices (ESD);

observe precautions for handling ESDs to avoid damaging the card.

NOTE: If installing the CNXVTC-3 into a CNMSX-AV, it is assumed that the

CNXCAGE has been installed.

1. Disconnect power from the CNMSX.

2. Use the Phillips tip screwdriver and remove two screws and blank

faceplate from the control system.

3. Align the CNXVTC-3 with the card guides in the open slot and slide

the expansion card into postion.

4. Firmly press both ends of the CNXVTC-3 faceplate to seat the

expansion card into the control system connector.

5. Tighten the thumb-nail screws to secure the CNXVTC-3 to the control

system.

6. Reapply power to the CNMSX.

Preparation for Use

Three distinct channels are available from the CNXVTC-3 via three connectors, A,

B, and C. Each connector is labeled IN (+, X, and -), OUT (+ and -), and G

(ground). Refer to a sample hookup diagram below and aside from reapplying

power to the control system last, complete the connections in any order.

Sample Hookup Connections for CNXVTC-3

A/V

EQUIPMENT

UNPOWERED

AUDIO OUT

INPUT

AMPLIFIER

Input impedance and balance are determined by external connections. Refer to the

diagram on the next page.

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Balanced and Unbalanced External Connections

BALANCED 600 OHMS INPUT

BALANCED OUTPUT

UNBALANCED 10K INPUT

UNBALANCED OUTPUT

+

INX

­+

OUT

­G

Programming with SIMPL Windows

SIMPL (Symbol Intensive Master Programming Language) is an easy-to-use
programming language that is completely integrated and compatible with all
Crestron system hardware. The objects that are used in SIMPL are called symbols.
SIMPL Windows offers drag and drop functionality in a familiar Windows®
environment.

SIMPL Windows is Crestron Electronics' software for programming Crestron
control systems. It provides a well-designed graphical environment with a number
of workspaces (i.e., windows) in which a programmer can select, configure,
program, test, and monitor a Crestron control system.

The next two subsections describe a sample SIMPL Windows program that utilizes
the CNXVTC-3. The first subsection details how the sample program works with a
textual description and block diagram. The second subsection provides a broad
description of how to actually create the SIMPL Windows program.

+

INX

­+

OUT

­G

NOTE: The following description assumes that the reader has knowledge of
SIMPL Windows. If not, please refer to the extensive help information provided
with the software.

NOTE: There is no need to recreate the sample SIMPL Windows program. A copy
of this program is available from Crestron’s ControlCD (version 4.03 and later).
Search for the CNXVTC-3.SMW project in the SIMPL Windows Example Base.

How the Program Works

A basic CNXVTC-3 SIMPL program is shown on the next page in block diagram
form. For this example, the CNXVTC-3 occupies slot #1 of a CNMSX-PRO.
Assume channels A and B are tied together to provide control over a stereo source
that has a left and right channel. Channel C is for a mono source that only has one
channel, such as a microphone.

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Block Diagram of CNXVTC-3

How to Create the Program

Use the Configuration Manager workspace in SIMPL Windows to select and

configure all the devices that need to be included into the system. For this example,

add a CNXVTC-3 to slot #1 of the CNMSX-PRO. Also add a CT-3000 to the

system; its NET ID must be set to 03, shown below.

NOTE: SIMPL Windows v1.19.08 or later is required to program the CNMSX-

PRO. If using an earlier version of SIMPL Windows, Crestron recommends a

SIMPL Windows and operating system upgrade.

Graphical System View of CNXVTC-3 and CT-3000 in SIMPL Windows’ Configuration

Manager

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Use the Programming Manager workspace in SIMPL Windows to select symbols
and assign their respective signals. For this example, a touchpanel and CNXVTC-3
symbols were added automatically when the devices were added to the system in the
Configuration Manager workspace. Expand the Network Modules folder and double
click on the touchpanel for a detail view (alternatively CTRL+D or drag and drop
into Detail View). Assign signals as shown below.

Graphical Detail View of Touchpanel in SIMPL Windows’ Programming Manager

Expand the Central Control Modules folder and double click on the CNXVTC-3 for
a detail view (alternatively CTRL+D or drag and drop into Detail View). Assign
signals as shown below.

Graphical Detail View of CNXVTC-3 in SIMPL Windows’ Programming Manager

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Expand the Logic folder to display the numerous symbols integrated into this

program. View each of the nine symbols in detail view (alternatively CTRL+D or

drag and drop into Detail View). Assign signals as shown below.

Graphical Detail View of an Analog Ramp (S-1.1) in SIMPL Windows’ Programming

Manager

Graphical Detail View of a Toggle (S-1.2) in SIMPL Windows’ Programming Manager

Graphical Detail View of an Analog Ramp (S-1.3) in SIMPL Windows’ Programming

Manager

Graphical Detail View of an Analog Ramp (S-1.4) in SIMPL Windows’ Programming

Manager

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Graphical Detail View of an Analog Ramp (S-2.1) in SIMPL Windows’ Programming
Manager

Graphical Detail View of a Toggle (S-2.2) in SIMPL Windows’ Programming Manager

Graphical Detail View of an Analog Ramp (S-2.3) in SIMPL Windows’ Programming
Manager

Graphical Detail View of an Analog Ramp (S-2.4) in SIMPL Windows’ Programming
Manager

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CAUSE(S)

Graphical Detail View of an Analog Preset (S-3) in SIMPL Windows’ Programming

Manager

Problem Solving

Troubleshooting

The table below provides corrective action for possible trouble situations. If further

assistance is required, please contact a Crestron technical support representative.

CNXVTC-3 Toubleshooting

TROUBLE

CNXVTC-3
does not
function.

Hum on audio. Grounding problem. Either connect or remove ground wire.

POSSIBLE

CNX Control System
is not receiving
power.

Circuit card is not
properly seated in
slot.

Programming error. Check SIMPL Windows program.

Verify power to CNX Control System.

Verify CNXVTC-3 is properly inserted into
CNX Control System slot per procedures in
this Operations Guide.

CORRECTIVE ACTION

Further Inquiries

If after reviewing this Operations Guide for the CNXVTC-3, you cannot locate

specific information or have questions, please take advantage of Crestron's award

winning technical support team by calling:

• In the US and Canada, call Crestron’s corporate headquarters at

1-888-CRESTRON [1-888-273-7876] or 1-201-767-3400.

• In Europe, call Crestron International at [phone].

• In Asia, call Crestron Asia at [phone].

• In Latin America, call Crestron Latin America at [phone].

For local support from exclusive Crestron factory-trained personnel call:

• In Australia, call Soundcorp at [phone].

• In New Zealand, call Amber Technologies at [phone].

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CRESTRON

Return and Warranty Policies

Merchandise Returns / Repair Service

1. No merchandise may be returned for credit, exchange, or service

without prior authorization from CRESTRON. To obtain warranty
service for CRESTRON products, contact the factory and request an
RMA (Return Merchandise Authorization) number. Enclose a note
specifying the nature of the problem, name and phone number of
contact person, RMA number, and return address.

2. Products may be returned for credit, exchange, or service with a

CRESTRON Return Merchandise Authorization (RMA) number.
Authorized returns must be shipped freight prepaid to CRESTRON,
Cresskill, N.J., or its authorized subsidiaries, with RMA number
clearly marked on the outside of all cartons. Shipments arriving
freight collect or without an RMA number shall be subject to refusal.
CRESTRON reserves the right in its sole and absolute discretion to
charge a 15% restocking fee, plus shipping costs, on any products
returned with an RMA.

3. Return freight charges following repair of items under warranty shall

be paid by CRESTRON, shipping by standard ground carrier. In the
event repairs are found to be non-warranty, return freight costs shall
be paid by the purchaser.

CRESTRON Limited Warranty

CRESTRON ELECTRONICS, Inc. warrants its Cresnet II products, denoted by a
"CN" prefix model number, to be free from manufacturing defects in materials and
workmanship for a period of three (3) years from the date of shipment to purchaser.
Disk drives and any other moving or rotating mechanical parts are covered for a
period of one (1) year. CRESTRON warrants all its other products for a period of
one year from the defects mentioned above, excluding touchscreen display
components which are covered for 90 days. Incandescent lamps are completely
excluded from Crestron's Limited Warranty. CRESTRON shall, at its option, repair
or replace any product found defective without charge for parts or labor. Repaired or
replaced equipment and parts supplied under this warranty shall be covered only by
the unexpired portion of the warranty.

CRESTRON shall not be liable to honor warranty terms if the product has been
used in any application other than that for which it was intended, or if it has been
subjected to misuse, accidental damage, modification, or improper installation
procedures. Furthermore, this warranty does not cover any product that has had the
serial number altered, defaced, or removed.

This warranty shall be the sole and exclusive remedy to the purchaser. In no event
shall CRESTRON be liable for incidental or consequential damages of any kind
(property or economic damages inclusive) arising from the sale or use of this
equipment. CRESTRON makes no other warranties nor authorizes any other party
to offer any warranty, expressed or implied, including warranties of merchantability
for this product. This warranty statement supersedes all previous warranties.

NOTE: All brand names, product names, and trademarks are the property of their
respective owners. Windows and Windows95 are the property of Microsoft
Corp.

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