Ensemble Designs Brighteye 10 User Manual

This user guide provides detailed information for using the BrightEye™10
Optical and SDI to Analog and SDI Converter unit.

The information is organized into the following sections:

• Product Overview

• Functional Description

• Applications

• Rear Connectors

• Operation

• Front Panel Controls and Indicators

• Using The BrightEye Control Application

• Warranty and Factory Service

• Specifications

• Glossary

BrightEye-1

BrightEye 10

Optical/SDI to

Analog/SDI Converter

User Guide

Revision 3.0 SW v1.0.2

ENSEMBLE

DESIGNS

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BrightEye 10 Optical/SDI to Analog/SDI Converter

PRODUCT OVERVIEW

The BrightEye™ 10 is a digital to analog video converter with both SDI (electri­cal) and fiber optic inputs. Output formats include Beta and SMPTE component,
RGB, and composite (with simultaneous S-Video Y/C). Video processing, encoding,
and analog conversion are performed digitally at 12 bits of resolution with 8 times
sampling.

Front panel controls select between the optical and SDI input, choose the analog
output format, and adjust gain. The BrightEyeControl application is provided to
allow remote control of the unit from a personal computer with USB support.

The reclocked SDI output follows the input selector, thus providing optical to elec­trical conversion when the optical input is selected. BrightEye 10 combines fiber
to SDI conversion and QC monitoring in one compact unit.

A glossary of commonly used video terms is provided at the end of this user guide.

FUNCTIONAL DESCRIPTION

As shown in the functional block diagram below, serial digital video is fed to the
converter on a single BNC connector. Or, an optical input can be connected to the
standard SC connector provided. Selection of the input type is made with the
front panel controls.

The SDI input is routed directly to the SDI Out BNC and the reclocking and dese­rializing circuitry before entering the D to A converter. The optical input, if
selected, also passes through the reclocker and deserializer before being converted
to analog video.

The converted analog signal is then encoded to the desired output format as
chosen on the front panel or with the BrightEye Control application. During this
stage, gain can be adjusted for the correct output levels.

BrightEye 10 is powered by a 12 volt DC universal power supply. This power
supply can accept an input voltage between 90 and 230 volts, at 50 or 60 Hertz. It
uses a standard IEC line cord and can be used anywhere in the world. It is
normal for the converter to be quite warm to the touch when operating.

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BrightEye 10 Functional Block Diagram

SDI Out

SDI In

Optical In

Input

Reclocker

Deserializer

12-bit

D to A

Converter

and

Video

Encoder

Cpst, Y, G Out

C, Pr, R Out

Y, Pb, B Out

Front Panel Controls

Gain Adjust

APPLICATIONS

The versatility of BrightEye 10 can be utilized in a number of different applica­tions where conversion of SDI or optical video to analog is required. Some
examples of using BrightEye 10 are given below.

Optical to Electrical Conversion with Analog Monitoring

This application, shown in the illustration below, utilizes the full functionality of
BrightEye 10 by using the converted SDI output from an optical input to feed a
destination such as a video router while monitoring the signal on an RGB
monitor at the same time.

Analog Monitoring of an SDI Signal

This application performs conversion of an SDI signal from a production switcher
to the Composite/S-Video format for feeding an S-VHS tape machine with the Y/C
outputs while monitoring the signal on a composite analog monitor as shown
below.

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Optical to Electrical Conversion with Analog Monitoring Illustration

Analog Monitoring of an SDI Signal Illustration

Router

BrightEye 10

Optical In

SDI
Out

R
G
B

Monitor

R

G
B

BrightEye 10

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Production

Switcher

BrightEye 10

SDI In

Composite

Monitor

Cmpst

Out

Y
C

S-VHS

Y

C

BrightEye 10 Optical/SDI to Analog/SDI Converter

Driving an RGB Projector

The ability of BrightEye 10 to accept optical inputs makes it an ideal choice for
converting sources located a great distance away. One example of this would be to
drive an RGB projector whose video source is located in a distant location similar
to the example shown below.

Optical or SDI Input to Component VTR

BrightEye 10 can provide a converted video output from an SDI or optical input
to feed any type of component VTR format as shown in the example below.

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Application for Driving an RGB Projector

Optical or SDI Input to Component VTR Application

BrightEye 10

Optical

In

BrightEye 10

SDI or
Optical In

Y

Pr

Pb

RGB

Projector

R
G
B

Beta Tape Deck

Y

Pr
Pb

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REAR CONNECTORS

All connections to the BrightEye 10 converter are made on the rear of the unit.
Refer to the illustration below.

Power Connection

Connect a modular power supply to the 12 volt DC power input connection on the
far left of the unit. Use the locking ring to secure it.

USB Connector

The USB connector is used to provide more comprehensive control, diagnostics,
and upgrades to the unit from a PC or Mac. Use the BrightEye Control applica­tion included on CD-ROM to make adjustments as described in the OPERATION
section of this user guide.

Optical In

The optical input connector carries the same ITU-R 601 component digital televi­sion signal as a directly modulated optical carrier in accordance with SMPTE
297M. The output wavelength is 1310 nm (nanometers), with a nominal output
power of -7 dBm. This is an SC type connector which is capable of driving both
single mode (SM) and multi-mode (MM) fibers.

As multi-mode fiber has a larger diameter than single mode fiber, multi-mode
ingests more light and this can result in overload of the optical receiver. When
using multi-mode fiber it is usually necessary to put a short single mode patch
cable ahead of the multi-mode fiber at the transmit end to reduce the signal to a
normal level.

A suitable arrangement can be a S3YYSFISA one meter, single mode patch cord
and a F1-8310 coupler. These items are inexpensive and available from Fiber
Instrument Sales (www.fiberinstrumentsales.com).

The patch cord has SC connectors and is used at the BrightEye optical transmit­ter output. The SC-to-SC coupler then connects this single mode patch cord to the
input of the multi-mode fiber link.

BrightEye 10 Rear Connectors

BrightEye 10

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BrightEye 10 Optical/SDI to Analog/SDI Converter

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Input/Output BNCS

There are five rear BNC connectors used as inputs and outputs as follows:

SDI In

This BNC input accepts a SMPTE 259M serial digital component signal, 525 or
625 line standard.

SDI Out

The Serial Digital Component signal from the reclocking circuitry is presented on
this connector. This output conforms to the ITU-R 601 standard for serial digital
video, with SMPTE 259M serialization at 270 Mb/s.

C, Pr, R Out

The function of this connector varies according to the selected output format as
follows:

• C – S-Video C output (use Y /C S-Video adapter) NTSC or PAL

•Pr– SMPTE/Beta analog component color difference R-Y channel output

•R– RGB Red output

Y, Pb, B Out

The function of this connector varies according to the selected output format as
follows:

•Y– S-Video Y output (use Y /C S-Video adapter) NTSC or PAL

•Pb– SMPTE/Beta analog component color difference B-Y channel output

•B– RGB Blue output

Cpst, Y, G Out

The function of this connector varies according to the selected output format as
follows:

• Cpst – NTSC or PAL composite output

•Y– SMPTE/Beta analog component Y (luminance) output

• G – RGB G output

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OPERATION

Control and operation of the BrightEye 10 converter is performed from the front
panel or with the BrightEye Control application.

Some control settings are only available with BrightEye PC or Mac. These parameters
cannot be monitored or controlled with the front panel.

Front Panel Controls and Indicators

The front panel of the converter, shown in the figure below, provides status indi­cators and control over video input and output selection, and gain.

Status Indicators

The following status indicators are provided on the front panel:

In

Illuminates green when an input for the currently selected video format is
detected on the input connector.

Input
The currently selected input type (SDI or Optical) will illuminate green.

Output

The currently selected output format (Cpst {S-Video}, Beta, SMPTE, or RGB)
will illuminate green.

Gain

Illuminates green when output gain is set to its nominal or unity value.
Illuminates red when gain is set higher or lower than nominal setting.

Pwr (Power)

Illuminates green when power is applied to the converter and the internal
voltage regulator is functioning correctly.

BrightEye 10 Front Panel

NOTE:

BrightEye 10

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