Gefen DVI-248 Manuel utilisateur

2x8 DVI DA

USER MANUAL

www.gefen.com

Technical Support:

Telephone (818) 772-9100

(800) 545-6900

Fax (818) 772-9120

Technical Support Hours:

8:00 AM to 5:00 PM Monday through Friday PST.

Write To:

Gefen Inc.

C/O Customer Service

20600 Nordhoff St.

Chatsworth, CA 91311

www.gefen.com

[email protected]

Notice

Gefen Inc. reserves the right to make changes in the hardware, packaging and any

accompanying documentation without prior written notice.

The 2:8 DVI Distribution Ampliﬁer is a trademark of Gefen Inc.

ASKING FOR ASSISTANCE

TABLE OF CONTENTS

Introduction

Operation Notes

Panel Descriptions

Dip Switch Settings

IR Code Conﬂicts

RS-232 Interface

Speciﬁcations

Warranty

INTRODUCTION

Congratulations on your purchase of the 2:8 DVI DistributionAmpliﬁer. The 2:8 DVI distri-

bution ampliﬁer is an innovative solution for anyone with more complex computer system

requirements, like studios and presentation venues where multi-viewing is essential. The

2:8 DVI distribution ampliﬁer accommodates various system scenarios. Most commonly,

two video sources (either DVI-equipped computer, DVD player or satellite set top box)

are connected to the distribution ampliﬁer on one side. On the output side, eight video

outputs are available to be used in part or in full. Once the unit is connected and powered,

each source can be routed to multiple displays.All DVI displays are driven by the two DVI

sources with each source or computer capable of driving eight displays at one time. For

home theater applications, the unit is HDCP (high deﬁnition content protection) compliant,

making it effective for use with all DVI displays.

How it works:

Gefen’s Gefen 2:8 DVI distribution ampliﬁer is an expandable distribution hub that sends

the same DVI graphics source to eight DVI based digital screens (ﬂat panels or projec-

tors).It isa ﬂexiblesolution thataccommodates multipleDVI displays.You canswitch from

source one and two via the RMT-2IR remote control. The 2:8 DVI distribution ampliﬁer is

also equipped with an auto sensing feature to switch between whatever source is active.

When one source is inactive it will automatically switch to the active source.

The Gefen 2:8 DVI distribution ampliﬁer is connected with a DVI (male to male) cable from

the DVI graphic source to the distribution ampliﬁer input. There are eight DVI outputs in

each module. DVI output one is the primary connection and is used for the main display.

DVI output 2 thru 8 follow the main display. The 2:8 DVI distribution ampliﬁers is using a

uniqueDVI Bus™technologyto connectmultiple ampliﬁerswithoutsacriﬁcinga DVIoutput

connection. The ninth output is an expansion output used to daisy chain an additional 2:8

DVI DistributionAmpliﬁer. The 2:8 DVI DistributionAmpliﬁer is expandable to 256 outputs

(32 DVI DA’s).

Contents:

The 2:8 DVI Distribution Ampliﬁer consists of:

(1) 2x8 DVI Distribution Ampliﬁer

(1) DVI 6ft Male to Male Cables

(1) 24VDC Power Supply

(1) RMT-2 IR Remote

(1) User Manual

READ THESE NOTES BEFORE INSTALLING

OR OPERATING THE 2:8 DVI DISTRIBUTION AMPLIFIER SYSTEM

• All the monitors connected to the 2:8 DVI DistributionAmpliﬁer must be able to run at the

same native resolution. The 2:8 DVI DistributionAmpliﬁer does not scale the video.

• The 2:8 DVI Distribution Ampliﬁer units are housed in a metal box for better RF shield-

ing.

• You must connect the sources and displays prior to applying power to the unit.

OPERATION NOTES

2:8 DVI DISTRIBUTION DA FRONT PANEL DESCRIPTION

DVI Output

IR Eye

DVI Input RS-232

Input IR

Extender

Input

Power

Input

DIP SWITCH SELECT SETTINGS

Extended display identiﬁcation data (EDID) is a data structure provided by a display to

describe its capabilities to any source that asks for it. The EDID includes manufacturer

name, product type, timings supported by the display, display size, luminance data, (for

digital displays only) pixel mapping data, supported audio channels and formats. This

information is used by the source to cater its output to resolutions and audio formats

that are supported by the display.

Additional EDID modes are available and conﬁgured using a combination of dip

switches 1, 2, and 5. Please refer below for the different EDID modes.

To access the Dip Switches, remove all screws from the bottom and sides of the Gefen

unit. Remove the hex screw heads from each side of the rear DVI & RS-232 ports.

Carefully slide the unit apart. The 8 Bank of Dip Switches are located on the main PCB.

Once adjustments are complete, slide the unit back together and replace all removed

screws.

EDID Mode 0 (Switch 1=OFF Switch2=OFF Switch5=ON)

-EDID is copied from the ﬁrst HDMI port

EDID Mode 1 (Switch 1=ON Switch2=OFF Switch5=ON)

-Same as Mode 0 and adds basic audio support

EDID Mode 2 (Switch 1=OFF Switch2=ON Switch5=ON)

-Same as Mode 0 and adds full audio support

EDID Mode 3 (Switch 1=ON Switch2=ON Switch5=OFF)

-EDID is generated based on the common video and audio features of all of the

connected devices

EDID Mode 4 (Switch 1=OFF Switch2=ON Switch5=OFF)

-Same as Mode 3 and adds basic audio support

EDID Mode 5 (Switch 1=ON Switch2=OFF Switch5=OFF)

-Same as Mode 3 and adds full audio support

EDID Mode 6 (Switch 1=OFF Switch2=OFF Switch5=OFF) DEFAULT

-EDID is generated based on the common video features of all of the connected

devices and the combined audio features of all of the connected devices

DIP SWITCH

EDID GUIDE

IR CODE CONFLICTS

How to Resolve IR Code Conﬂicts

There are matching pairs of dip switches underneath the 2x8 DVI DAunit and under the

remote battery cover. Switch 1 & 2 on the Remote and Switch 3 & 4 inside the unit are the

matching switches. These switches need to be matched for the remote to

communicate with the switcher. There are 4 possible sets of IR codes and at least one of

these sets should be able to resolve any IR conﬂicts with other home theater devices.

Remote Channel 1:

Remote Channel 2:

Remote Channel 3:

Remote Channel 4:

Remote

2:8 DVI Distribution Amplifier

Remote Channel 1:

Default

Remote Channel 4:

12345678

Remote Channel 3:

12345678

Remote Channel 2:

12345678

RS-232 INTERFACE

Binary Table

ASCII Input Binary

1 1 0011 0001

2 2 0011 0010

Additional control of the EDID modes and IR channel are possible using the RS-232

interface. For any of these modes to be successfully written to the EEPROM, all Dip

Switches must be in the OFF position.

OK is printed out on screen when a mode has successfully been changed.

ASCII EDID Mode

m0 0

m1 1

m2 2

m3 3

m4 4

m5 5

m6 6

ASCII Remote Channel

r1 1

r2 2

r3 3

r4 4

Terminal Settings

Bits per second ...................................................................................................... 19200

Data bits ........................................................................................................................ 8

Parity ....................................................................................................................... None

Stop bits ..........................................................................................................................1

Flow Control ............................................................................................................ None

SPECIFICATIONS

Video Ampliﬁer Bandwidth ................................................................................. 1.65 GHz

Single Link Range ......................................................................................... 1920 x 1200

Vertical Frequency Range ....................................................................................... 60 Hz

DVI Input/Output Connector Type ....................................................... DVI-I (Digital Only)

Power Consumption ................................................................................ 60 Watts (max.)

Power Supply ........................................................................................................ 24VDC

Dimensions ................................................................................... 17”W x 1.75”H x 7.5”D

Rackmountable .......................................................................................... 1 Rack Space

Shipping Weight ....................................................................................................... 8 Lbs

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