Crestron CNX-PVID8x4 User manual

Crestron CNX-PVID8x4
Video Distribution Switch
Operations Guide

This document was prepared and written by the Technical Documentation department at:
Crestron Electronics, Inc.
15 Volvo Drive
Rockleigh, NJ 07647
1-888-CRESTRON
All brand names, product names, and trademarks are the property of their respective owners.
©2004 Crestron Electronics, Inc.

Crestron CNX-PVID8x4 Professional Video Distribution Switch
Operations Guide - DOC. 8166A Contents •i
Contents
Professional Video Distribution Switch: CNX-PVID8x4 1
Introduction ...............................................................................................................................1
Features and Functions................................................................................................1
Specifications ..............................................................................................................3
Physical Description....................................................................................................4
Industry Compliance ...................................................................................................8
Setup ..........................................................................................................................................8
Network Wiring........................................................................................................... 8
Identity Code ...............................................................................................................9
Cabling and Jumpers .................................................................................................10
Rack Mounting .......................................................................................................... 11
Stacking.....................................................................................................................12
Hardware Hookup ..................................................................................................... 13
Hardware Configurations ..........................................................................................14
Signal Distribution to More than Eight Rooms ......................................................... 19
Programming Software............................................................................................................20
Earliest Version Software Requirements for the PC .................................................20
Programming with Crestron AppBuilder...................................................................21
Programming with SIMPL Windows ........................................................................21
CNX-PVID8x4 Symbols ........................................................................................... 23
Example Program ...................................................................................................... 30
Uploading and Upgrading........................................................................................................ 31
Communication Settings ...........................................................................................31
Uploading a SIMPL Windows Program.................................................................... 33
Firmware Upgrade..................................................................................................... 35
Problem Solving ...................................................................................................................... 36
Troubleshooting......................................................................................................... 36
Further Inquiries ........................................................................................................ 37
Future Updates .......................................................................................................... 37
Return and Warranty Policies .................................................................................................. 38
Merchandise Returns / Repair Service ...................................................................... 38
CRESTRON Limited Warranty.................................................................................38

Crestron CNX-PVID8x4 Professional Video Distribution Switch
Operations Guide - DOC. 8166A Professional Video Distribution Switch: CNX-PVID8x4 •1
Professional Video Distribution
Switch: CNX-PVID8x4
Introduction
Features and Functions
The Crestron®Professional Video Distribution Switch, CNX-PVID8x4, is a CAT5
video distribution system that is capable of delivering video from a large number of
separate video sources like DVD players, DSS receivers, tuners, VCRs, and cameras
into a multitude of separate rooms or areas. The exact number of input sources and
output destinations depend on how the unit is to be used in a system and whether or
not it is connected to a Crestron Room Solution Box (CNXRMC or CNXRMCLV).
Its unique design and phenomenal flexibility remove design and installation
constraints from residential systems integration. This unit can provide professional
quality far above the level of consumer-grade equipment for sophisticated home
theaters, kitchens, bedrooms, offices, and outdoor areas. Fully integrated with the
Crestron control system as a network device, the CNX-PVID8x4 is a key component
in the Crestron Home®complete solution for distributing audio, video, and control
throughout the home.
Functional Summary
• Accepts digital audio, NTSC/PAL composite, component, and S-video
sources, including HDTV
• Distributes up to 64 separate video sources to as many as 32 separate
rooms
• Four levels of video matrix boards; each with 16 RCA inputs and 8 RCA
outputs
• Each input includes two RCA connectors wired in parallel; one for video
input, one for termination or loop-through
• Each input has built-in video sync sensor to report power/activity status
of source device
• RCA output jacks provide single-ended (local mode) video
• Eight RJ-45 connectors provide digital audio and differential (CAT5
mode) video to up to eight rooms
• Internal jumpers and programming enable extensive input/output
configuration flexibility

Professional Video Distribution Switch Crestron CNX-PVID8x4
2 •Professional Video Distribution Switch: CNX-PVID8x4 Operations Guide - DOC. 8166A
The CNX-PVID8x4 accepts digital audio, component, S-video, and NTSC/PAL
composite sources, including HDTV signals, and distributes them to display devices
throughout the home via standard CAT5 structured wiring. This distribution method
ensures a balanced signal for long runs, allowing the user to equalize, adjust, and
boost the gain of the video signal for the perfect picture for every application, in
every room.
The CNX-PVID8x4 is designed with three levels of video inputs and outputs, each
highly configurable for a variety of video formats. Each of the three levels of
switcher boards implements a video matrix with 16 RCA inputs and eight RCA
outputs for direct single ended video connection to local display devices. A fourth
level may be used for 16 channels of distributed digital audio. In addition, the
CNX-PVID8x4 contains eight RJ-45 outputs for distributing any of these
audio/video signals via CAT5 mode for differential audio/video to up to eight rooms
throughout the house. No matter what the configuration, all inputs have a built-in
video sync sensor that reports power/activity status of all source devices attached to
the CNX-PVID8x4.
CNX-PVID8x4 used with Crestron Room Solution Box
NOTE: Systems that incorporate the CNX-PVID8x4 and Crestron Room Solution
Boxes satisfy a vast number of possible applications that could be used by Crestron
customers.
The CNXPVID8x4 is ideally used in tandem with a CNXRMC or CNXRMCLV in
each room, which receives and decodes the CAT5 video from the CNX-PVID8x4
and supplies it to the display device in the room. Refer to an illustration of a general
application scenario after this paragraph. This video distribution solution, combined
with Crestron's audio distribution switches (CNX-PAD8A or CNX-BIPAD8), a
Crestron CNAMPX intelligent amplifier, and a 2-Series control system, creates a
complete networked audio/video/control solution for the connected home.
General Application Scenario of the CNX-PVID8x4
L1
L1
CRESNET
CRESTRON CONTROL SYSTEM
VCR
SECURITY CAMERA
DVD
COMPOSITE VIDEO
COMPONENT VIDEO
DIGITAL AUDIO
CNX-PAD8A OR CNX-BIPAD8
SPEAKERS LOCATED IN
ROOM WITH NO LOCAL AV
R1 L8 R8
R1 L8 R8
CNAMPX
TO
CNXRMC
OR
CNXRMCLV
CNX-PVID8x4
(CAT 5)
VIDEO
ANALOG AUDIO
AUDIO
ANALOG
S-VIDEO
The Crestron Application Builder™ (Crestron AppBuilder) can be used to facilitate
the programming portion of this system. However, due to the wiring constraints
between the CNX-PVID8x4 and Crestron Room Solution Boxes, each type of video

Crestron CNX-PVID8x4 Professional Video Distribution Switch
Operations Guide - DOC. 8166A Professional Video Distribution Switch: CNX-PVID8x4 •3
source must connect to a specific group of input connectors, which is dependent on
the hardware configuration chosen. Refer to "Hardware Configurations" on page 14
for specific connection details.
CNX-PVID8x4 used without Crestron Room Solution Box
In this system, the CNX-PVID8x4 has an incredible amount of flexibility with
respect to making connections to all three types of video sources. For example, it is
possible to have a composite source connected to INPUT 1, level 1 and an S-video
source connected to INPUT 1, levels 2 and 3, simultaneously. However, the Crestron
AppBuilder cannot be used for the programming portion of this kind of system. All
programming is done entirely in SIMPL Windows.
Specifications
The following table provides a summary of specifications for the CNX-PVID8x4.
Specifications of the CNX-PVID8x4
SPECIFICATION DETAILS
Power Requirements 40 Watts (1.67 Amp @ 24 VDC)
Default Net ID 41
Control System Update Files 1, 2, 3
2-Series Control System
CNMSX-AV/PRO
CNRACKX/-DP
CEN/CN-TVAV
ST-CP
Version 2.004.CUZ or later
Version 5.14.02X.UPZ or later
Version 5.14.02W.UPZ or later
Version 5.12.63V.UPZ or later
Version 4.02.4S.UPZ or later
CNX-PVID8x4 Firmware 4 PVID_16.upg or later
PVID_16.s19 or later
Rack space required 4U high; 1U wide
Video bandwidth 100 MHz
Crosstalk > -60 dB
Environmental temperature range 41° to 104°F (5° to 40°C)
Humidity 10% to 90% RH (non-condensing)
Dimensions
(without mounting ears)
Height: 6.97 in (17.70 cm)
Width: 17.29 in (43.92 cm)
Depth: 8.45 in (21.46 cm)
Weight 9.81 lb (4.45 kg)
1 The latest versions can be obtained from the Downloads | Software Updates section of the Crestron
website (www.crestron.com). Refer to following NOTE.
2 Crestron 2-Series control systems include the AV2 and PRO2. Consult the latest Crestron Product
Catalog for a complete list of 2-Series control systems.
3 Filenames for CNX and ST-CP update files have a UPZ extension. Files on the website may be .zip
or self-extracting .exe files containing the .cuz or .upz file. All can be obtained from the Downloads
section of the Crestron website. To avoid program problems, make sure you are using the update file
with the correct suffix letter (e.g., S, V, W, X)
4 Refer to firmware upgrade release notes for applicability.
NOTE: Crestron software and any files on the website are for Authorized Crestron
dealers and Crestron Authorized Independent Programmers (CAIP) only. New users
may be required to register to obtain access to certain areas of the site (including the
FTP site).

Professional Video Distribution Switch Crestron CNX-PVID8x4
4 •Professional Video Distribution Switch: CNX-PVID8x4 Operations Guide - DOC. 8166A
Physical Description
The CNX-PVID8x4 is housed in a black enclosure with labeling on the front and
rear panels. LEDs on the front of the unit indicate the unit's status. All connections
are made to the back of the unit. Refer to the following illustrations.
CNX-PVID8x4 Front View
CNX-PVID8x4 Rear View

Crestron CNX-PVID8x4 Professional Video Distribution Switch
Operations Guide - DOC. 8166A Professional Video Distribution Switch: CNX-PVID8x4 •5
CNX-PVID8x4 Physical Views
6.97 in
(17.70 cm)
(EXTRUSION)
8.25 in
(20.96 cm)
I
19.00 in
(48.26 cm)
6.94 in
(17.63 cm)
(EARS)
PWR
NET
CRESTRON
RTSIDOEDIVLANOISSEFORP
8.45 in
(21.46 cm)
TIAV UEVPIECNOTDI
13452 678
10987654321 1614131211 15
3
LESCTE
2
1
4
B HCTIWSNOITU UTPUOT
CNX-PVID8X4
17.29 in
(43.92 cm)
ESTRONCRE 7HIGKLEROCINC.CTRO NICSLE 607 4J.N.,SAU
1
3
2
12345678910
4
INPUT
5678
1234
5678
1234
5678
8765
4123
OUTPUT
1234
11 12 123413 14 15 16
5678
OUTPUT
NET
SETUP 24 Y ZG
Two mounting ears are provided for rack mounting; four square rubber feet are
provided for tabletop mounting or stacking. These feet are to be attached on the base
of the unit for stability and to prevent slippage.
CNX-PVID8x4 Ports
All connections to the CNX-PVID8x4 are made through the ports on the rear panel.
Refer to the following illustrations and descriptions.

Professional Video Distribution Switch Crestron CNX-PVID8x4
6 •Professional Video Distribution Switch: CNX-PVID8x4 Operations Guide - DOC. 8166A
CNX-PVID8x4 Ports
12 34 56 78 910
E STRONCRE 7HIGKLEROCINC .CTRONICSLE 607 4J.N.,SAU
1
3
2
4
INPUT
11 12 123413 14 15 16
1234
5678
5678
1234
5678
1234
5678
8765
4123
OUTPUT
OUTPUT
NET
SETUP 24 Y ZG
INPUT 1 – 16 (Levels 1 – 4)
There are four levels of 16 inputs, each input has two RCA jacks connected in
parallel (one for video input, one for termination or loop-through), which is used to
connect independent video sources to the CNX-PVID8x4. Each connector is
supplied with RCA terminators (75 ohm). The terminators should remain attached
unless the INPUT connectors of multiple units are connected (loop-through). Refer
to "Signal Distribution to More than Eight Rooms" on page 19 for a description and
illustration about loop-through. The last unit in the loop must have terminators
installed.
All video inputs have a video sensor so that the power status of all components can
be reported. Only inputs with sync can be reliably detected (composite or
luminance).
OUTPUT (RCA Connectors)
There are four levels of eight RCA jacks (32 total) for single ended (local mode)
video.
NOTE: The information on the OUTPUT RCA connectors and OUTPUT RJ-45
connectors are identical; they are not independently controllable.
OUTPUT (RJ-45 Connectors)
There are eight RJ-45 connectors for differential digital audio/video (CAT5 mode).
The outputs are grouped into four pairs and correspond to the input levels as shown
in the table after this paragraph. Use a standard CAT5 cable.
Pairing of RJ-45 OUTPUT Connector Pins with respect to the INPUT Levels
PAIRED PIN # ASSOCIATED INPUT LEVEL
1 (+) and 2 (-) 1
3 (+) and 6 (-) 2
4 (+) and 5 (-) 3
7 (+) and 8 (-) 4
NOTE: For additional information on video connections over CAT5, refer to the
latest version of the Crestron CAT5 Wiring Reference Guide (Doc. 6137) which is
available from the Downloads | Product Manuals section of the Crestron website
(www.crestron.com).
JACK, REAR VIEW
(TAB POSITION DOWN)
Pin 1
RJ-45 Pinout

Crestron CNX-PVID8x4 Professional Video Distribution Switch
Operations Guide - DOC. 8166A Professional Video Distribution Switch: CNX-PVID8x4 •7
NET
This 4-pin terminal block connector is used to connect the CNX-PVID8x4 to the
Cresnet®system. Refer to "Network Wiring" on page 8 for details.
CNX-PVID8x4 Indicators
There are 30 LED indicators located on the front panel of the CNX-PVID8x4, and
one on the back panel. Refer to the following illustration and descriptions.
CNX-PVID8x4 Indicators
I
PWR
NET
CRESTRON
RTSIDOEDIVLANOISSEFORP
TIAV UEVPIECNOTDI
13452678
10987654321 1614131211 15
3
LESCTE
2
1
4
B HCTIWSNOITU
UTP UOT
CNX-PVID8X4
PWR (Power)
This LED illuminates when 24 volts DC from the network is supplied to the
CNX-PVID8x4.
NET
This LED illuminates when communication between the Cresnet system and the
CNX-PVID8x4 is established (unit is polled on the network). Illumination indicates
that the SIMPL Windows program currently loaded has a network device defined at
the same Net ID as the CNX-PVID8x4.
SELECT 1 - 4
These LEDs illuminate when a switcher board (levels 1 through 4) is selected.
Boards can be locally selected with a pushbutton. Refer to "CNX-PVID8x4
Pushbuttons" on this page for details.
OUTPUT 1 - 8
These eight LEDs illuminate to indicate that a source is routed via the respective port
to the corresponding room.
ACTIVE VIDEO INPUT
These 16 video sync indicators illuminate to signify active inputs on the selected
board (level).
NOTE: Only composite video and the "Y" S-video/component signal are reliably
detected. If connections to the INPUT connectors are made as recommended by
Crestron in "Hardware Configurations" on page 14, simply use level 1 for detection
of the sync signals.

Professional Video Distribution Switch Crestron CNX-PVID8x4
8 •Professional Video Distribution Switch: CNX-PVID8x4 Operations Guide - DOC. 8166A
SETUP
This LED is the lone indicator on the back panel. The LED is intended for future use
and is not defined at the time of printing.
CNX-PVID8x4 Pushbuttons
There are two pushbuttons on the CNX-PVID8x4 (one on the front panel and one on
the back panel). The front panel SELECT pushbutton allows for local selection of
the boards (levels 1 through 4). Four indicators are used as feedback. The rear panel
SETUP pushbutton is for future use and is not defined at the time of printing.
Industry Compliance
As of the date of manufacture, the CNX-PVID8x4 has been tested and found to
comply with specifications for CE marking and standards per EMC and
Radiocommunications Compliance Labelling.
NOTE: This device complies with part 15 of the FCC rules. Operation is subject to
the following two conditions: (1) these devices may not cause harmful interference,
and (2) these devices must accept any interference received, including interference
that may cause undesired operation.
Setup
Network Wiring
CAUTION: Use only Crestron power supplies for Crestron equipment. Failure to
do so could cause equipment damage or void the Crestron warranty.
NOTE: When installing network wiring, refer to the latest revision of the wiring
diagram(s) appropriate for your specific system configuration, available from the
Downloads | Product Manuals | Wiring Diagrams section of the Crestron website
(www.crestron.com).
When calculating the wire gauge for a particular Cresnet run, the length of the run
and the power factor of each network unit to be connected must be taken into
consideration. If Cresnet units are to be daisy-chained on the run, the power factor of
each unit to be daisy-chained must be added together to determine the power factor
of the entire chain. If the unit is a home-run from a Crestron system power supply
network port, the power factor of that unit is the power factor of the entire run. The
length of the run in feet and the power factor of the run should be used in the
following resistance equation to calculate the value on the right side of the equation.
Resistance Equation
R = Resistance (refer to table below).
L = Length of run (or chain) in feet.
PF = Power factor of entire run (or chain).
R < L x PF
40,000 Where:

Crestron CNX-PVID8x4 Professional Video Distribution Switch
Operations Guide - DOC. 8166A Professional Video Distribution Switch: CNX-PVID8x4 •9
The required wire gauge should be chosen such that the resistance value is less than
the value calculated in the resistance equation. Refer to the following table.
Wire Gauge Values
RESISTANCE (R) WIRE GAUGE
416
618
10 20
15 22
13 Doubled CAT5
8.7 Tripled CAT5
NOTE: All network wiring must consist of two twisted-pairs. One twisted pair is
the +24V conductor and the GND conductor and the other twisted pair is the Y
conductor and the Z conductor.
NOTE: When daisy-chaining Cresnet units, strip the ends of the wires carefully to
avoid nicking the conductors. Twist together the ends of the wires that share a pin on
the network connector, and tin the twisted connection. Apply solder only to the ends
of the twisted wires. Avoid tinning too far up the wires or the end becomes brittle.
Insert the tinned connection into the Cresnet connector and tighten the retaining
screw. Repeat the procedure for the other three conductors.
Identity Code
Every equipment and user interface within the network requires a unique identity
code (Net ID). These codes are two-digit hexadecimal numbers from 03 to FE. The
Net ID of each unit must match an ID code specified in the SIMPL Windows
program. Refer to “Setting the Net ID in Device Settings” on page 22 for details of
the SIMPL Windows procedure.
Refer to the note on page 31 for a
definition of Viewport.
The Net ID of the CNX-PVID8x4 has been factory set to 41. The Net IDs of
multiple CNX-PVID8x4s in the same system must be unique. Net IDs are changed
from a personal computer (PC) via the Crestron Viewport.
NOTE: For detailed information on establishing communication between the PC and
control system, refer to “Communication Settings” on page 31. If communication
cannot be established, refer to the “Troubleshooting Communications” section in the
respective Operations Guide for the control system.
Complete the following steps to change the Net ID
1. Ensure that the CNX-PVID8x4 is the only device connected to the
control system.
2. Open the Crestron Viewport.
3. From the Viewport menu, select Functions | Set Network ID. The
software checks the baud rate and then opens the "Set Network ID"
window.
4. In the "Set Network ID" window, select the CNX-PVID8x4 from the
Current Network Devices text window.
5. Select the new Net ID for the CNX-PVID8x4 from the Choose the new
network ID for the selected device (Hex): text box.

Professional Video Distribution Switch Crestron CNX-PVID8x4
10 •Professional Video Distribution Switch: CNX-PVID8x4 Operations Guide - DOC. 8166A
6. Click Set ID to initiate the change. This will display the "ID command
has been sent" window.
7. In the "Command Complete" window, click OK.
8. In the Current Network Devices text window, verify the new Net ID
code.
9. In the "Set Network ID" window, click Close.
NOTE: The new Net ID code may also be verified by selecting Diagnostic | Report
Network Devices in the Viewport (alternately, select F4).
10. Repeat this procedure for each CNX-PVID8x4 to be added to the
system.
Cabling and Jumpers
Out of the box, the CNX-PVID8x4 provides four 16x8 crosspoint boards that can be
operated independently or in parallel. However, versatility was built into the unit.
Depending on how the four boards are cabled and/or jumpered, the unit can be used
in different hardware configurations. For example, cabling boards 1 and 3
conceptually eliminates level 3 (thus component sources are not allowed with this
configuration) and extends level 1 with 16 composite-only connections. Furthermore,
installation of the cable assembly and removal of jumpers splits level 3 (thus
component sources are restricted to inputs 9 through 16) and extends level 1 with
eight composite-only connections.
NOTE: Possible configurations and their respective applications when the
CNX-PVID8x4 is connected to Crestron Room Solution Boxes are summarized in
"Hardware Configurations" on page 14. Furthermore, cabling and jumper removal
may prove useful in systems where the CNX-PVID8x4 does not connect to a
Crestron Room Solution Box.
If the out-of-the-box configuration is desired, the following procedure, which defines
how to install the cable and remove jumpers, need not be completed. If one of the
other configurations is required, the only tools needed to complete this procedure are
a #2 Phillips screwdriver and a grounding strap (grounded workstation).
CAUTION: The CNX-PVID8x4 contains ESD sensitive devices. Perform the
following procedure while wearing a grounding strap that is properly grounded or on
a grounded workstation to avoid damaging the unit.
NOTE: This procedure assumes that the CNX-PVID8x4 does not have rack ears
attached and has yet to be connected to the network.
1. Place the CNX-PVID8x4 right side up on a flat surface.
2. Using a #2 Phillips screwdriver, remove the 16 cover screws from the
top (four screws) and sides (six per side) of the CNX-PVID8x4.
3. Lift and remove the CNX-PVID8x4 top cover.
4. Use the supplied cable (15863) to connect board 1 (bottom board) to
board 3, as shown in the following diagram.

Crestron CNX-PVID8x4 Professional Video Distribution Switch
Operations Guide - DOC. 8166A Professional Video Distribution Switch: CNX-PVID8x4 •11
Location of Cable Connection (Side View of Unit)
USE CABLE FOR CONNECTION
OF LEVEL 1 TO LEVEL 3 ONLY
5. If the desired application requires removal of the jumpers, remove the
nine jumpers from level 3 (top board) only, as shown in the diagram
after this step. Otherwise, skip this step and step 6.
Location of Jumpers (Top View with Cover Removed)
TO SPLIT LEVEL 3,
REMOVE NINE JUMPERS
(FROM LEVEL 3 ONLY)
JUMPER HOLDER
STORES REMOVED
JUMPERS
NOTE: Eight of the nine jumpers are grouped together. Do not forget to remove the
ninth jumper that is located separately from the other eight.
6. Store jumpers removed in step 5 on the jumper holder, as shown in the
diagram that precedes this step.
7. Place the cover over the unit (observe proper orientation with respect to
front and back panels) and secure with 16 cover screws.
8. Tighten screws to finger-tight then, using a #2 Phillips screwdriver,
tighten an additional 1/8-turn.
Rack Mounting
WARNING: To prevent bodily injury when mounting or servicing this unit in a
rack, take special precautions to ensure that the system remains stable. The following
guidelines are provided to ensure user safety.
• The unit should be mounted at the bottom of the rack if it is the only
unit in the rack.

Professional Video Distribution Switch Crestron CNX-PVID8x4
12 •Professional Video Distribution Switch: CNX-PVID8x4 Operations Guide - DOC. 8166A
• When mounting this unit in a partially filled rack, load the rack from
the bottom to the top with the heaviest component at the bottom of the
rack.
• If the rack is provided with stabilizing devices, install the stabilizers
before mounting or servicing the units in the rack.
NOTE: If rack mounting is not required, rubber feet are provided for tabletop
mounting or stacking. Apply the feet near the corner edges on the underside of the
unit. Refer to "Stacking" on page 12 for details.
NOTE: Reliable grounding of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections other than direct
connections to the branch circuit (e.g., use of power strips).
Two "ears" are provided with the CNX-PVID8x4 so that the unit can be rack
mounted. These ears must be installed prior to mounting. Complete the following
procedure to attach ears to the CNX-PVID8x4. The only tool required for this
procedure is a #2 Phillips screwdriver.
1. Position a rack ear so that its drilled holes align with the four vacated
holes located on one side of the CNX-PVID8x4.
2. Use four screws (supplied, #6-32, 3/8"L) to secure the ear to the
CNX-PVID8x4, as shown in the following diagram.
Ear Attachment for Rack Mounting (Side View of Unit)
FASTEN EACH EAR
WITH FOUR
SCREWS (SUPPLIED)
3. Tighten screws to finger-tight then, using a #2 Phillips screwdriver,
tighten an additional 1/8-turn.
4. Repeat procedure (steps 1 and 2) to attach ear to the other side.
5. If the rear panel of the CNX-PVID8x4 is accessible when mounted in
the rack, install the CNX-PVID8x4. If the rear panel is NOT accessible,
perform the hookup procedure before rack installation.
Stacking
Four "feet" are provided with the CNX-PVID8x4 so that if the unit is not rack
mounted, the rubber feet can provide stability when the unit is placed on a flat
surface or stacked. These feet should be attached prior to the hookup procedure.
Refer to the following illustration for placement of the feet.

Crestron CNX-PVID8x4 Professional Video Distribution Switch
Operations Guide - DOC. 8166A Professional Video Distribution Switch: CNX-PVID8x4 •13
Feet Location (Bottom View of Unit)
ATTACH FEET
NEAR CORNERS
OF THE UNIT
Hardware Hookup
Refer to the hookup diagram after this paragraph. Other than making the power
connection last, complete the connections in any order.
NOTE: For specific details regarding input connections, refer to "Hardware
Configurations" on page 14 if the CNX-PVID8x4 connects to Crestron Room
Solution Boxes within the system.
NOTE: Refer to "Network Wiring" on page 8 when making connections to the port
labeled CRESNET.
Hookup Connections for the CNX-PVID8x4
ESTRONCRE 7HIGKLERO CINC .CTRO NICSLE 607 4J.N.,SAU
3
1
2
1234
4
1234
5678
5678
1234
5678
8765
4123
OUTPUT
FROM VIDEO SOURCES
(ACCEPTS COMPONENT,
S-VIDEO, NTSC/PAL COMPOSITE,
AND DIGITAL AUDIO)
5678 910
INPUT
11 12 13 14 15 16 1234
1234
5678
OUTPUT
NET
SETUP 24 Y ZG
INPUT: CRESNET:
TO CONTROL
SYSTEM AND
OTHER CRESNET
DEVICES
SINGLE ENDED
(LOCAL) VIDEO TO
MONITOR OR
DISPLAY
OUTPUT:
DIFFERENTIAL
VIDEO/AUDIO (CAT5)
TO ROOM SOLUTION
BOX
OUTPUT:

Professional Video Distribution Switch Crestron CNX-PVID8x4
14 •Professional Video Distribution Switch: CNX-PVID8x4 Operations Guide - DOC. 8166A
Hardware Configurations
NOTE: The hardware configurations described in the following sections only apply
to systems where the CNX-PVID8x4 connects to Crestron Room Solution Boxes.
The Crestron AppBuilder can generate a program that fits into one of these
configurations.
The CNX-PVID8x4 is constructed with four crosspoint boards; each implements a
16x8x1 matrix. The physical boards are labeled on the back of the unit as "levels" 1,
2, 3, and 4 from bottom to top. Component sources connect to levels 1 through 3 per
input (connect Y to level 1, Pbto level 2, and Prto level 3). S-video sources use
levels 1 and 2 per input (connect Y to level 1 and C to level 2). Composite sources
should connect to level 1 only (including level 3 extensions of level 1when boards 1
and 3 are connected via the cable assembly). Digital audio sources connect to level 4.
Refer to the table after this paragraph for a tabulation of the relationship between
input levels and audio/video formats.
Relationship of Audio and Video Formats to Input Levels
\ VIDEO COMPONENT S-VIDEO COMPOSITE DIGITAL AUDIO
\ FORMAT (connects to (connects to (connects to (connects to
LEVEL \ three levels) two levels) one level*) one level)
4not connected not connected not connected digital audio
3Prnot connected not connected* not connected
2PbC not connected not connected
1Y Y COMP not connected
* Composite sources can physically connect to level 3 when boards 1 & 3 are connected via the cable assembly.
Depending on how the internal boards are cabled/jumpered, the unit can be used in
different configurations (each is discussed in the following subsections). Refer to the
following flowchart to determine which configuration to use (based on the source
types in the system).
NOTE: Crestron recommends the out-of-the-box configuration, because it allows
for the distribution of a large number of sources with the greatest flexibility and there
is no need to open the unit. The other configurations permit a greater number of
sources, but are not as flexible. The other configurations also require cabling of
boards and possibly the removal of jumpers.

Crestron CNX-PVID8x4 Professional Video Distribution Switch
Operations Guide - DOC. 8166A Professional Video Distribution Switch: CNX-PVID8x4 •15
Flowchart: Determine the Configuration
Out-of-the-Box Configuration
AKA: 16 Sources of Any Type (Video, S-Video, Component)
This configuration is aptly named, because the internal jumpers are intact, as
shipped, and the supplied cable assembly is not used. Therefore, the unit is ready for
immediate use and is capable of distributing a combination of up to 16 sources of
any type. The built-in versatility of this configuration makes it the most popular and
easiest to use.
NOTE: Installers only need to consider another configuration if the system consists
of more than 16 sources.
The illustration after this paragraph provides a visual depiction of a system that
utilizes the CNX-PVID8x4 and contains a combination of 16 or fewer composite,
S-video, and component sources. Some of the sources also include digital audio.
Notice that each input (labeled 1 through 16) can connect to a single source. The
sequence of video signal type is irrelevant. Levels 1 through 4 are always switched
together.

Professional Video Distribution Switch Crestron CNX-PVID8x4
16 •Professional Video Distribution Switch: CNX-PVID8x4 Operations Guide - DOC. 8166A
Illustration of Out-of-the-Box Configuration
Cabling and Jumpering Internal
Boards:
Cable between level 1 and level 3
is not attached.
Nine jumpers remain in their
original location (no jumpers
on the jumper holder).
14
COMPONENT - CONNECTS TO LEVELS 1, 2, & 3*.
S-VIDEO - CONNECTS TO LEVELS 1 & 2 ONLY*.
COMPOSITE - CONNECTS TO LEVEL 1 ONLY*.
* DIGITAL AUDIO (IF AVAILABLE) CONNECTS
TO LEVEL 4 ONLY ON THE SAME INPUT
FOR ANY OF THE VIDEO FORMATS. FOR
EXAMPLE, REFER TO INPUTS 9, 10, & 11.
NOTES:
LEVELS 1 THROUGH 4 ARE ALWAYS
SWITCHED TOGETHER.
EACH SOURCE CONNECTS TO A SINGLE
INPUT (LABELED 1 THROUGH 16).
THE SEQUENCE OF SOURCES IS
INDEPENDENT OF VIDEO FORMAT.
MAXIMUM NUMBER OF SOURCES ALLOWED
WITH THIS CONFIGURATION IS 16.
E STRONCRE 7HIGKLEROCIN C .CTRONICSLE 607 4J.N.,SAU
1
2
3
4
12345 106 789
INPUT
11 12 13
567 8
1234
5678
1234
5678
1234
5678
65 87
12
OUTPUT
43
15 16 1234
OUTPUT
SETUP 24
NET
YZG
Composite/S-Video Only Configuration
AKA: 16 Video & Up to 16 S-Video or Video Sources
NOTE: Dealing with a system that contains more than 16 sources? This
configuration may be preferred as long as the system does not contain component
video.
To achieve this configuration, the unit must be opened and the cable assembly
attached. Refer to "Cabling and Jumpers" on page 8 for details. The internal jumpers
remain intact.
Conditions of this configuration;
p
lease read care
f
ull
y
! This configuration allows for the greatest number of sources, 32. However, those
sources can only be composite (up to 32, when there is no S-video) and S-video (up
to 16, maximum). The illustration after this paragraph provides a visual depiction of
a system that utilizes the CNX-PVID8x4 in the composite/S-video only
configuration. Some of the sources also include digital audio. Notice that S-video
sources can only be connected to input 1 through 16 (connect Y to level 1 and C to
level 2). Installation of the cable assembly conceptually eliminates level 3 (thus
component sources are not allowed with this configuration) and extends level 1 with
16 composite-only connections. Of course, if there are fewer than 16 S-video sources
in the system, the number of composite sources can increase as long as the total
number of composite and S-video sources does not exceed 32.
NOTE: The composite sources connected to level 3 are switchable to the output on
level 1.