Crestron CNX-PBVR4 Manuel utilisateur

Crestron CNX-PBVR4

Professional Balanced Video Receiver

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.

Crestron CNX-PBVR4 Professional Balanced Video Receiver

Contents

Professional Balanced Video Receiver: CNX-PBVR4 1

Introduction ...............................................................................................................................1

Features and Functions................................................................................................1

Specifications ..............................................................................................................2

Physical Description....................................................................................................2

Industry Compliance ...................................................................................................5

Setup ..........................................................................................................................................5

Rack Mounting ............................................................................................................ 5

Hookup ........................................................................................................................ 6

Video Input Compensation..........................................................................................7

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

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

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

Future Updates ............................................................................................................ 9

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

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

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

Operations Guide – DOC. 8184 Contents •i

Crestron CNX-PBVR4 Professional Balanced Video Receiver

Professional Balanced Video

Receiver: CNX-PBVR4

Introduction

Features and Functions

The CNX-PBVR4 Professional Balanced Video Receiver is designed to accept up to

16 channels of differential (balanced) video and digital audio from the Crestron

Room Solution Boxes (CNXRMC or CNXRMCLV) and provide single-ended

(unbalanced) video and digital audio to the Crestron Video Distribution Switch

(CNX-PVID8x3 or 8x4) for redistribution to other room boxes or PVIDs.

This non-Cresnetunit is a key component for distributing video and/or digital audio

throughout an entire home, using standard CAT5 cabling.

Functional Summary

•

16 Channels in 4 Video I/O Groups

• 4 RJ45 Connectors (1 per Group) for CAT5 Balanced

Video/Digital Audio Input

• 12 Video Input Compensation Potentiometers (3 per

Group) to Adjust for CAT5 Cable Length

• 16 RCA Connectors (4 per Group) for Video and

Digital Audio Output:

− Component Video including HDTV

− S-Video

− Composite Video

− Single, Fixed Compensation Line for Composite

Video or S/PDIF Digital Audio

Operations Guide – DOC. 8184 Professional Balanced Video Receiver: CNX-PBVR4 •1

Professional Balanced Video Receiver Crestron CNX-PBVR4

Specifications

Specifications for the CNX-PBVR4 are given in the following table.

CNX-PBVR4 Specifications

SPECIFICATION DETAILS

Power Requirements 24 VDC, 1A, 24W (Power Pack, PW-2410, included)

Video

Signal Type

Gain

Bandwidth

Composite Video

S-Video

Component Video

S/PDIF Digital Audio

Unity

50 MHz

CAT5 Input Cable Length from

CNXRMCLV

Up to 300 feet maximum.

Video Input

Input Video Type

Connector

Impedance

Voltage Level

Balanced

Shielded RJ-45 (8-pin) Female

100 Ohms

0.3V to 2Vp-p with no offset

Video Output

Output Video Type

Connector

Impedance

Voltage Level

Unbalanced

RCA Female

75 Ohms

0.3V to 2Vp-p with no offset

Environmental Temperature &

Humidity

41° to 113°F (5° to 45°C)

10% to 90% RH (non-condensing)

Dimensions & Weight Height: 1.7 in (4.32 cm) (1 rack space)

Width: 19.0 in (48.26 cm) – with ears

17.03 in (43.24 cm) – without ears

Depth: 6.67 in (16.94 cm)

Weight: 2.88 lb (1.29 kg)

Physical Description

The CNX-PBVR4, shown below, is housed in a black enclosure with labeling on

front and back panels. Refer to the physical views shown after this paragraph.

CNX-PVID8x4 Physical Views

17.025 in

(43.24 cm)

6.671 in

(16.94 cm)

1.70 in

(4.32 cm)

2 •Professional Balanced Video Receiver: CNX-PBVR4 Operations Guide – DOC. 8184

Crestron CNX-PBVR4 Professional Balanced Video Receiver

Ports, Controls, and Indicators

The CNX-PBVR4 has a single LED power indicator (PWR) on the front panel to

indicate when DC power is applied to the unit; all video signal ports and controls are

located on the rear panel.

NOTE: This unit is a non-Cresnet device.

CNX-PBVR4 Front Panel

As shown in the illustration following this paragraph, the unit’s ports and controls

consist of four identical video I/O groups of input and output connectors and signal

compensation potentiometers. Also located on the rear panel is the male connector

for 24VDC input power from the supplied power pack, PW-2410. The ports and

controls are described in the paragraphs following the illustration.

CNX-PBVR4 Rear Panel

Each of the four video I/O groups consists of an RJ45 (8-pin) connector (labeled A,

B, C, and D), three potentiometers (labeled VIDEO INPUT COMP 1, 2, and 3), and

four gold plated female RCA connectors (labeled VIDEO OUT 1, 2, 3, and 4).

RJ45 Connectors

Each connector receives up to four baseband video input signals via CAT5 cable

from a Room Solution Box, such as the CNXRMCLV, or from a Crestron Video

Distribution Switch, such as the CNX-PVID8x3 or CNX-PVID8x4. Three baseband

signals can be provided by the CNX-PVID8x3 and the CNX-PVID8x4 can provide

four. Component video—including HDTV, S-Video and/or composite video

comprise Level 1 through Level 3 inputs. Level 4 inputs, because they are fed to

fixed compensation circuits, are typically used for composite video or digital audio.

The three to four baseband video signals (1 through 4) correspond to the levels

available on the particular model of CNX-PVID used.

Potentiometers

Three of the video inputs in each group have potentiometers, used to adjust each

signal independently to compensate for line loss due to lengthy CAT5 cable runs.

The fourth input signal has fixed cable compensation. Use a small, flat blade

screwdriver to adjust the pots following the procedures given in "Video Input

Compensation" on page 7.

Operations Guide – DOC. 8184 Professional Balanced Video Receiver: CNX-PBVR4 •3

Professional Balanced Video Receiver Crestron CNX-PBVR4

RCA Connectors

These four gold-plated RCA connectors provide flexibility to output component,

composite, and S-Video, along with digital audio for a variety of configurations

required by the local equipment in the room.

The four groups combined expand that flexibility, allowing for the simultaneous

distribution of at least one of every video format. The simplified block diagram

following this paragraph illustrates the internal configuration of each I/O group.

VIDEO I/O Block Diagram

FIXED COMP

RCA

OUTPUTS

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

CAT5 INPUT

(FROM CNX-PVID8x3/4

or CNXRMCLV)

VIDEO

INPUT

COMP

1–

2–

3–

4–

Connector

Pins

Although there is great flexibility to output a variety of video formats, certain

characteristics dictate the combination of video formats delivered by the CNX-

PBVR4. Characteristics include the internal wiring of the unit, the fact that three of

the four inputs can be compensated, and the ability to simultaneously distribute at

least one of every video format. The table after this paragraph lists three highly

recommended output configurations for the CNX-PBVR4 video I/O groups.

Recommended Output Configurations for CNX-PBVR4 I/O Groups

VIDEO

OUT

PORT

CONFIGURATION

1 Component (Y) S-Video (Y) Composite

2 Component (Pb) S-Video (C) Composite

3 Component (Pr) Composite

4 Digital Audio Digital Audio Digital Audio

PWR Indicator

The CNX-PBVR4 has a single PWR (power) indicator on its front panel. This LED

illuminates when the unit is connected to and receives 24VDC power from the

supplied power pack.

4 •Professional Balanced Video Receiver: CNX-PBVR4 Operations Guide – DOC. 8184

Crestron CNX-PBVR4 Professional Balanced Video Receiver

Industry Compliance

As of the date of manufacture, this unit has been tested and found to comply with

specifications for CE marking and standards per EMC and Radio Communications

Compliance Labeling (N11785)

NOTE: 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.

Setup

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 your safety:

 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 unit 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.

NOTE: Reliable earthing 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 unit and must be installed so that it can be rack

mounted. Refer to the following illustration and complete the procedures below to

attach ears to the unit. The only tool required is a Phillips screwdriver.

NOTE: Mounting screws are provided with the ears.

Operations Guide – DOC. 8184 Professional Balanced Video Receiver: CNX-PBVR4 •5

Professional Balanced Video Receiver Crestron CNX-PBVR4

Ear Attachment for Rack Mounting

1. Using a Phillips screwdriver, remove the three side screws closest to

the front panel.

2. Position a rack ear so that its mounting holes align with the vacated

holes, and secure the ear to the unit with the three longer screws

supplied with the ears.

3. Repeat the procedure to attach the remaining ear to the opposite side.

Hookup

The CNX-PBVR4 provides great flexibility in redistributing video signals

throughout an entire home. Local room sources can now be distributed and shared to

other rooms through the headend. For example, as seen in the simplified

configuration diagram on the next page, users in Room 1 or Room 2 can choose to

view from among the headend sources, their own local sources, or the local sources

of the other three rooms.

NOTE: Terminators are not required on unused video output connectors.

To maintain highest signal integrity, Crestron recommends a maximum length of

300 feet for CAT5 input cables from the CNXRMCLV room solution boxes to the

CNX-PBVR4.

6 •Professional Balanced Video Receiver: CNX-PBVR4 Operations Guide – DOC. 8184

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