Gefen EXT-DVIKVM-841DL User manual

www.gefen.com

®

8

x1 DVI KVM DL

Switche

r

EXT-DVIKVM-

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en.com

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en, LL

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x1 DVI KVM DL Switcher is a trademark o

f

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e

f

en, LL

C

.

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e

f

en, LL

C

., All Ri

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hts Reserved.

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y

o

f

their respective owners

CONTENT

S

1 Intr

oduc

ti

on

2

O

peration Notes

3

Features

4 Panel La

y

ou

t

5

Panel Descriptions

6

C

onnectin

g

the 8x1 DVI KVM DL

S

witcher

7 8x1 DVI KVM DL Remote Descriptio

n

8

x1 DVI KVM DL

S

witcher Remote Installatio

n

9

R

MT-

8

I

R

Remote and 8x1 DVI KVM

S

witcher

C

on

ﬁ

g

uratio

n

1

0

EDID Modes

12 DL

(

Dual Link

)

O

nl

y

Modes

1

3

R

S

-2

3

2

S

erial

C

ommunicatio

n

14 R

S

-2

3

2

S

erial

C

ontrol

C

ommands

22 R

ac

k M

ou

nt In

s

t

a

ll

a

ti

on

23

S

peci

ﬁ

cations

24 Warrant

y

1

INTRODUCTIO

N

C

on

g

ratulations on

y

our purchase o

f

the 8x1 DVI KVM DL

S

witcher. Your

c

omplete satis

f

action is ver

y

important to us.

G

efen

G

e

f

en delivers innovative, pro

g

ressive computer and electronics add-on solutions

that harness inte

g

ration, extension, distribution and conversion technolo

g

ies.

G

e

f

en’s reliable, plu

g

-and-pla

y

products supplement cross-plat

f

orm computer

sy

stems, pro

f

essional audio

/

video environments and HDTV s

y

stems o

f

all sizes

with hard-workin

g

solutions that are eas

y

to implement and simple to operate.

T

he Gefen 8x1 DVI KVM DL Switcher

The rack-mountable

G

e

f

en

8

x1 DVI KVM DL

S

witcher o

ff

ers an economical

s

olution b

y

eliminatin

g

the need to purchase man

y

displa

y

s

f

or each computer in

a studio or lab situation. A plu

g

-and-pla

y

solution that supports both Macintosh

and IBM-P

C

computers, the 8x1 DVI KVM DL

S

witcher shares one DVI displa

y

with up to ei

g

ht computers or other DVI video sources. A sin

g

le U

S

B 2.0 port,

k

e

y

board

&

mouse ports, and an analo

g

audio

j

ack are also switched. The

s

witcher saves space on

y

our desktop b

y

eliminatin

g

a crowded workspace

f

ull

o

f

DVI monitors, ke

y

boards

&

mice, and U

S

B and audio cables.

S

witchin

g

o

f

DVI

s

ources is eas

y

and reliable.

How It Works

The DVI monitor is connected to the 8x1 DVI KVM DL

S

witcher’s output. Up to

e

i

g

ht DVI video sources connect to the switcher

’

s DVI inputs usin

g

included hi

g

h

q

ualit

y

DVI cables. The included power suppl

y

is connected to the switcher via

the lockin

g

power plu

g

and then to a power outlet. The currentl

y

selected DVI

video si

g

nal appears on the shared monitor. DVI Video sources

(

and optionall

y

k

e

y

boards and mice, U

S

B and audio cables

)

are selected

/

switched usin

g

the

R

MT-8IR remote control, R

S

-232 control, or the input selector push button on the

f

ront panel o

f

the switcher.

2

OPERATION NOTE

S

READ THESE NOTES BEFORE INSTALLING OR

OPERATING THE GEFEN 8X1 DVI KVM DL SWITCHER

• The 8x1 DVI KVM DL

S

witcher will take an

y

o

f

up to ei

g

ht

(

8

)

DVI dual-link or

s

in

g

le-link resolution inputs and switch them, one at a time, to a DVI output

device such as a displa

y/

monitor or pro

j

ector. Dual link resolutions up t

o

3840 x 2400 are supported.

• The

8

x1 DVI KVM DL

S

witcher is housed in a metal box

f

or better RF

s

hieldin

g

.

3

FEATURE

S

Features

•

S

witches between an

y

ei

g

ht dual link

(

or sin

g

le link

)

DVI computers

•

S

witches U

S

B 2.0, ke

y

board, mouse, and analo

g

audi

o

•

S

upports either P

C

or Mac U

S

B ke

y

board

/

mous

e

• Maintains hi

g

hest resolution dual link and sin

g

le link DVI

•

S

upports resolutions up throu

g

h 1920 x 1200 and 3840 x 240

0

• Extends the ran

g

e o

f

DVI video up to 50

f

ee

t

• EDID Mana

g

ement

• Di

sc

r

e

t

e

IR r

e

m

o

t

e

co

ntr

o

l in

c

l

uded

•

S

erial R

S

-232 remote port

f

or switchin

g

via automated control or P

C

•

S

upports DDW

G

standards

f

or DVI monitors

• HD

C

P

C

ompliant

(

when usin

g

EDID D

S

Mode

)

• R

ac

k

ea

r

s

in

c

l

uded

P

acka

g

e Includes

(

1

)

8x1 DVI KVM DL

S

witcher

(

8

)

6

f

t. Dual Link DVI cables

(

8

)

6

f

t. U

S

B cables

(

8

)

6

f

t. 3.5mm

j

ack analo

g

audio cables

(

1

)

RMT-8IR Remote

C

ontrol

(

1

)

5V

/

4A D

C

lockin

g

power suppl

y

(

1

)

S

et o

f

rack ears

(

1

)

Q

uick

S

tart

G

uid

e

4

Back Panel

P

ANEL LAYOU

T

Front Panel

5

4

2

1

3

6

8

9

7

10

121

1

5

P

ANEL DESCRIPTION

S

1

External IR Por

t

For connection o

f

external IR extension device such as the

G

e

f

en IR Extender

(

part

#

EXT-RMT-EXTIR

)

.

2

I

R Receive

r

R

eceives IR si

g

nal

f

rom the handheld In

f

rared remote control unit included with

the

8

x1 DVI KVM DL

S

witcher.

3

DVI Signal Status LEDs 1-8

Provide visual con

ﬁ

rmation o

f

the currentl

y

selected DVI input si

g

nal bein

g

output to the DVI displa

y

device.

4

DVI Input Selecto

r

Push-button switch c

y

cles the next DVI input 1-8 in a

f

orward sequence startin

g

a

g

ain at 1.

5

P

ower Indicator LED

Indicates when the 8x1 DVI KVM DL

S

witcher is receivin

g

5V D

C

power

f

rom its

included A

C

power suppl

y

.

6

5V Locking Power Receptacle

S

upplies power to the 8x1 DVI KVM DL

S

witcher

f

rom the included external 5V

D

C

power suppl

y

. The 5V power suppl

y

has a lockin

g

power tip which screws

into this receptacle.

7

DVI Input Ports

1

-8

DVI video sources one throu

g

h ei

g

ht attach to the 8x1 DVI KVM DL

S

witcher.

8

DVI Output Por

t

This DVI output port is connected to the displa

y

device

(

Monitor, Pro

j

ector

)

.

9

R

S-232 Serial Communications Interface

Provided

f

or external control o

f

the

8

x1 DVI KVM DL

S

witcher.

10

3

.5mm mini-Stereo Analog Audio Jacks 1-8

Audio

S

ources one throu

g

h ei

g

ht connect to the switcher here.

11

USB Type B Ports 1-8

US

B devices one throu

g

h ei

g

ht connect to the switcher here.

1

2 USB Type A Control Ports 1-2

The ke

y

board

&

mouse

f

or controllin

g

the selected remote computer or device

co

nn

ec

t

s

t

o

th

e

s

wit

c

h

e

r h

e

r

e

.

6

CONNECTING THE 8X1 DVI KVM DL SWITCHER

How to Connect the 8x1 DVI KVM DL Switcher

1.

C

onnect

y

our computers’ DVI, U

S

B, and Audio sources to the 8x1 DVI KVM

DL

S

witcher inputs usin

g

the supplied cables.

2.

C

onnect

y

our DVI displa

y

to the DVI output o

f

the 8x1 DVI KVM DL

S

witcher

u

sin

g

a user-supplied DVI cable.

3

.

C

onnect

y

our U

S

B and audio devices to the U

S

B and audio outputs with user-

s

upplied cables.

4. Turn on the DVI displa

y

or pro

j

ector

ﬁ

rst.

5

.

C

onnect the included 5V D

C

power suppl

y

to the

8

x1 DVI KVM D

L

S

witcher

b

y

b

y

screwin

g

its 5V D

C

power suppl

y

tip into the receptacle in the rear o

f

the unit, then plu

g

it into the wall.

6

. Turn on the computer.

Note: When powerin

g

the

S

witcher on

f

or the

ﬁ

rst time, make sure that the

displa

y

is powered on and connected to the

S

witcher be

f

ore appl

y

in

g

power to

the

S

witcher. The reason

f

or this procedure is that EDID in

f

ormation will onl

y

be

c

opied

f

rom the displa

y

device to DVI sources upon power-up. I

f

power is applied

to the

S

witcher be

f

ore the displa

y

device is connected and powered up, the

S

witcher’s last recorded EDID

f

rom previous activit

y

will be used.

Wirin

g

Dia

g

ram for the 8x1 DVI KVM DL Switcher

EXT-DVIKVM-841DL

DVI Dual Link Display

USB Keyboard

USB Mouce &

Powered Speaker

DVI DUAL LINK CABLE

AUDIO CABLE

USB CABLE

DVI Dual Link Sources

USB Sources

Audio Sources

8x

Switcher

7

8X1 DVI KVM DL REMOTE DESCRIPTIO

N

D

Indicator

L

E

D

In

p

ut Selection

Buttons

The RMT-8IR remote control will allow the user to choose which of 8 DVI sources

mo

te

c

on

tr

ol

w

il

l

al

lo

w

th

e

us

er

t

o

ch

oo

se

w

hi

ch

or computers will be selected. Please use the in

f

ormation below when selectin

g

the

des

ir

ed

sou

r

ce:

RMT-8IR Button

D

VI Sourc

e

1

2

3

4

55

6

77

8

8X1 DVI KVM DL SWITCHER REMOTE INSTALLATIO

N

To use the RMT-8IR remote, remove the batter

y

cover on the back o

f

the remote to

r

eveal the batter

y

compartment. Insert the included batter

y

into the open batter

y

slot.

The positive

(

+

)

side should be

f

acin

g

up. Ensure that both DIP

(

Dual Inline Packa

g

e

)

s

witches are in the

O

FF position. Replace the batter

y

cover. The remote ships with 2

batteries.

O

ne batter

y

is needed

f

or operation and the other batter

y

is complimentar

y

.

IR Code Di

p

Switches

E

mpt

y

Batter

y

Slo

t

9

RMT-8IR REMOTE AND 8X1 KVM SWITCHER CONFIGURATIO

N

How to Resolve IR Code Conﬂ icts

In th

e

v

e

nt th

a

t IR

co

mm

a

n

ds

f

r

o

m

o

th

e

r r

e

m

o

t

e

co

ntr

o

l

s

co

n

ﬂ

i

c

t with th

e

s

upplied RMT-8IR remote control, chan

g

in

g

the remote channel will alleviate this

issue. The RMT-

8

IR remote control and the

8

x1 DVI KVM DL

S

witcher both have

banks o

f

DIP

(

Dual Inline Packa

g

e

)

S

witches

f

or con

ﬁ

g

urin

g

the remote channel

that both units use to communicate. These settin

g

s must exactl

y

match each

other

f

or proper operation.

The DIP

S

witch bank on the RMT-8IR is located underneath the batter

y

c

over. DIP

S

witch banks

f

or the

8

x1 DVI KVM DL

S

witcher are located on the

u

nderside o

f

the unit beneath a black piece o

f

metallic tape.

O

ne DIP switch

bank

(

4-switch

)

is

f

or the ad

j

ustment o

f

remote control

f

requencies and switch

behavior. The other DIP switch

(

8-switch

)

is reserved

f

or DL

O

nl

y

mode

(

pa

g

e

11

)

.

S

witches 1 and 2 on the RMT-8IR directl

y

correspond to DIP

S

witches 1 and

2 on the 8x1 DVI KVM DL

S

witcher.

O

nl

y

switches 1 and 2

(

o

f

4 in that bank

)

are

u

sed

f

or IR

C

ode settin

g

s.

R

emote

C

hannel 1

:

D

efau

l

t

12

R

emote

C

hannel 2

:

12

R

emote

C

hannel

3:

1

2

R

emote

C

hannel 4

:

1

2

L

eft: Picture o

f

the opened rear batter

y

c

ompartment o

f

the RMT8-IR remote showin

g

the exposed DIP

S

witch bank between the

batter

y

chambers.

8

x1 DVI KVM DL

S

witcher

R

emote

C

hannel 1

:

D

e

f

au

l

t

R

emote

C

hannel 4

:

1

2

3

4

R

emote

C

hannel

3:

1

2

3

4

R

emote

C

hannel 2

:

1

2

3

4

10

E

DID MODE

S

EDID. What is it, and what is it used for?

,

U

nder normal circumstances, a computer source device

(

di

g

ital or analo

g)

will

r

equire in

f

ormation about a connected device

/

displa

y

to assess what resolutions

and

f

eatures

(

capabilities

)

are possible. The source device can then cater its

output to create resolutions and

/

or

f

eatures that are compatible with the attached

device

/

displa

y

. This capabilit

y

in

f

ormation is called EDID

(

Extended Displa

y

Identi

ﬁ

cation Data

)

. A source device can onl

y

accept and read one EDID data

s

tructure

/

record

f

rom a connected source device

/

displa

y

. Likewise, the source

device can output onl

y

one video resolution to a connected device

/

displa

y

.

The importance of EDID with regards to the 8x1 DVI KVM DL Switcher

pg

The 8x1 DVI KVM DL

S

witcher handles multiple sources

/

inputs. Each connected

s

ource device must correctl

y

read one EDID data structure in order to address its

displa

y

device correctl

y

. EDID mana

g

ement is care

f

ull

y

handled b

y

the

S

witcher

to insure that EDID is recorded and retransmitted to sources properl

y

at all times,

otherwise displa

y

o

f

input sources mi

g

ht not happen correctl

y

(

or at all

)

.

Managing EDID with the 8x1 DVI KVM DL Switcher

gg

The 8x1 DVI KVM DL

S

witcher has 2 modes

f

or routin

g

EDID

:

1. The de

f

ault mode is the L

OC

AL mode which will store the EDID o

f

a source

device

(

one

f

or each input

)

into the 8x1 DVI KVM DL

S

witcher. The EDID

s

tored in each L

OC

AL location can be

f

rom a local displa

y

device or

f

rom

a remote source over the R

S

-232 serial communications port. The 8x1 DVI

KVM DL

S

witcher also includes a built-in EDID memor

y

bank which can

s

tore up to 7 separate EDID data structures which can then be loaded to

e

ach o

f

the L

OC

AL EDID locations.

2. The second mode is the D

S

(

Down

S

tream

)

mode which

f

unctions as a

s

imple EDID pass-throu

g

h. In this mode, the displa

y

device connected to the

8

x1 DVI KVM DL

S

witcher will pass its EDID directl

y

to whichever DVI input

s

ource is currentl

y

selected. HDCP is supported in this mode only.

N

O

TE: The 8x1 DVIKVM DL

/S

L

S

witcher also

f

eatures an EDID Lock Mode,

allowin

g

the EDID to be stored.

S

ee the

f

ollowin

g

pa

g

e

f

or details.

How do I change EDID modes in the 8x1 DVI KVM DL Switcher?

g

Th

e

r

e

i

s

a

n

ba

nk

of

4 DIP

s

wit

c

h

es

l

oca

t

ed

o

n th

e

m

a

in

c

ir

cu

it

boa

r

d

o

n th

e

u

nderside o

f

the

8

x1 DVI KVM DL

S

witcher. DIP switch

3

can be used to set

e

ither the D

S

or L

OC

AL EDID modes. The bank o

f

8

DIP switches are used

f

or

the DL

(

dual link

)

onl

y

f

eature and are discussed later on pa

g

e 12.

T

IP: Advanced EDID

f

unctions can also be mana

g

ed via the R

S

-232 serial

c

ommunications port.

S

ee pa

g

e 13

f

or more in

f

ormation on the R

S

-232 serial

co

mm

u

ni

ca

ti

o

n

fea

t

u

r

es

.

1

E

DID MODE

S

EDID Mode

s

The dia

g

ram below illustrates the 4 DIP switch bank. The 8 DIP switch bank

f

unctions are outlined later on this pa

g

e.

D

IP SWITC

H

Function

1

IR

C

hannel

2

IR

C

hannel

3

EDID M

ode

4 EDID L

oc

k M

ode

U

se DIP switch

3

to set the desired EDID mode.

1.

L

OCAL EDID Mode

(

Switch 3=OFF

)

DEFAUL

T

• EDID that is stored in the L

OC

AL memor

y

location is passed to all inputs.

•B

y

de

f

ault, durin

g

each power on process the connected displa

y

’s

EDID will be automaticall

y

copied to each o

f

the input’s L

OC

AL EDID

loca

ti

o

n

s

.

*

• The EDID stored in the L

OC

AL locations can be overwritten with another

EDID

f

rom the

f

ollowin

g

locations

(

These options can onl

y

be initiated b

y

u

sin

g

R

S

-232 serial communication commands

)

:

• Built-in EDID memor

y

bank

(

up to 7 EDID records can be stored

)

• EDID collected directl

y

f

rom the input displa

y*

• Externall

y

uploaded via the R

S

-232 command set

(

see p. 13

)

*

For the de

f

ault EDID writin

g

process to be success

f

ul the connected displa

y

m

ust be powered on.

2

.

D

S

(

Down Stream

)

EDID Mode

(

Switch 3=ON

)

• EDID is passed directl

y

f

rom the connected displa

y

to the currentl

y

active

input.

N

ote: HDCP is supported in this mode only.

3

.

E

DID Lock Mode

(

DIP Switch 4 = ON

)

• Locks the last stored EDID, even i

f

the unit is power-c

y

cled. To store a

n

ew EDID, do the

f

ollowin

g:

1. Power-down the

S

witcher and set DIP

S

witch 4 to the

O

FF position.

2.

C

onnect the displa

y

to the DVI output port then power-on the

S

witcher.

3

.

S

et DIP

S

witch 4 to the

O

N position to lock the EDID.

1

2

3

4

12

D

L

(

DUAL LINK

)

ONLY MODE

S

DL (Dual Link) Only Modes

()y

The 8 DIP switch bank, located on the underside o

f

the

8

x1 DVI KVM D

L

S

witcher cab be used to set each individual input to work in a Dual Link

O

nl

y

m

ode. These modes should onl

y

be enabled i

f

issues occur when usin

g

Dual

Link sources and displa

y

s in the default mode.

D

IP SWITC

H

Function

D

IP SWITC

H

Function

1

Input 1 Mod

e

5

Input 5 Mod

e

2

Input 2 Mod

e

6

Input 6 Mod

e

3

Input 3 Mod

e

7

Input 7 Mod

e

4 Input 4 Mod

e

8

Input 8 Mod

e

U

se DIP switch

3

to set the desired EDID mode.

D

L

(

Dual Link

)

and SL

(

Sin

g

le Link

)

Mode

(

Switch=OFF

)

DEFAUL

T

• This settin

g

can be set individuall

y

f

or each input. This mode will allow

the connection o

f

both Dual Link and

S

in

g

le Link displa

y

s.

D

L

(

Dual Link

)

Onl

y

Mode

(

Switch=ON

)

• This settin

g

can be set individuall

y

f

or each input. This mode should be

e

nabled i

f

issues with the de

f

ault occur with Dual Link displa

y

s.

1

3

RS-232 SERIAL COMMUNICATIO

N

What features are available via the RS-232 serial communications port?

p

The 8x1 DVI KVM DL

S

witcher can accept commands throu

g

h the R

S

-232 serial

c

ommunications port located on the rear panel. The current R

S

-232 control

fea

t

u

r

es

a

r

e:

•

S

witchin

g/

routin

g

o

f

inputs to outputs without the RMT-8IR remote control.

•

S

witch EDID modes without operatin

g

the DIP switches on the underside o

f

th

e

u

nit.

•

M

ana

g

in

g

the EDID bank and EDID that is loaded into the L

OC

AL EDID.

•

U

pload new EDID’s to the EDID bank or directl

y

to the L

OC

AL EDID

loca

ti

o

n.

How do I use these features

?

These

f

eatures were initiall

y

intended

f

or utilization b

y

custom installers in

automated setups. However, these

f

eatures can be tested b

y

usin

g

an

y

computer

with a terminal emulation pro

g

ram.

What pins are used for communication with the 8x1 DVI KVM DL Switcher?

p

O

nl

y

pins 2

(

Receive

)

, 3

(

Transmit

)

, and 5

(G

round

)

are used

f

or communication.

A null-modem adapter should not be used with this product.

54321

9876

12345

6789

Only Pins 2 (RX), 3 (TX), and 5 (Ground) are used on the RS-232 serial interface

What are the communication port settings?

pg

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

Data bits ...............................................................................................................

8

Parit

y

............................................................................................................. Non

e

S

top bits ................................................................................................................

1

Flow

C

ontrol .................................................................................................. Non

e

1

4

RS-232 SERIAL CONTROL COMMAND

S

RS-232 Features

RS

-232 remote

f

unctions are used to control o

f

this product’s

f

eatures. Features

include input to output routin

g

, EDID stora

g

e, EDID mana

g

ement, etc.

Functions Syntax

y

The s

y

ntax

f

or each

f

unction is alwa

y

s the same

:

#C

haracter as the start

ﬂ

a

g

→ Function name →

S

pace

(

_

)

as

f

unction name

e

nd

ﬂ

a

g

→ Parameter 1 →

S

pace → Parameter n →

C

arria

g

e Return

(

\

r

)

→

S

ample

:

#

FunctionName_param1_param2_param3_param4...

\

r

Sy

ntax is N

O

T case sensitive.

EDID Management

g

Function

D

escri

p

tion

#

EDIDD

S

T

O

L

O

R

ead downstream EDID and stores into all inputs

#

EDIDD

S

T

O

BA

Read

do

wn

s

tr

ea

m EDID

a

n

d

s

t

o

r

es

in EDID B

a

n

k

#

EDIDBAT

O

L

O

R

ead

f

rom EDID bank and store into all local inputs

#

DD

C

T

O

D

S

R

oute input DD

C

to downstream EDID

(

pass-throu

g

h mode

)

#

DD

C

T

O

L

O

R

outes input DD

C

to local EDID

#

DEF

S

ets unit to de

f

ault

f

actor

y

settin

g

s

#

L

O

EDIDT

O

B

A

Load EDID

f

rom serial port and store in EDID ban

k

#

L

O

EDIDT

O

L

O

Loads EDID

f

rom serial port and store in an

y

inpu

t

#

PRBAEDID

R

eads EDID

f

rom EDID bank and sends to serial por

t

#

PRD

S

EDID

R

eads downstream EDID and sends it to serial por

t

#

PRL

O

EDID

R

eads local input EDID and sends it to serial por

t

15

RS-232 SERIAL CONTROL COMMAND

S

#

EDIDDSTOLO Function

The

#

EDIDD

S

T

O

L

O

fu

n

c

ti

o

n r

eads

th

e

do

wn

s

tr

ea

m EDID

a

n

d

s

t

o

r

es

int

o

a

ll l

o

-

c

al inputs.

Syntax

y

:

#

EDIDDSTOLO

Pa

r

a

m

e

t

e

r

s

:

N

o

n

e

#

EDIDDSTOBA Function

The

#

EDIDD

S

T

O

BA

f

unction reads the downstream EDID and stores it to a

s

peci

ﬁ

ed EDID bank.

Syntax

y

:

#

EDIDDSTOBA

p

aram

1

Pa

r

a

m

e

t

e

r

s

:

p

aram

1

EDID bank o

ff

set [1 - 7]

#

EDIDBATOLO Function

The

#

EDIDBAT

O

L

O

f

unction reads an EDID

f

rom an EDID bank and stores it in

all inputs.

Syntax

y

:

#

EDIDBATOLO

p

aram

1

Pa

r

a

m

e

t

e

r

s

:

p

aram

1

EDID bank o

ff

set [1 - 7]

1

6

RS-232 SERIAL CONTROL COMMAND

S

#

DDCTODS Function

The

#

DD

C

T

O

D

S

f

unction routes the input DD

C

to the downstream EDID

(

pass-

throu

g

h mode

)

.

Syntax

y

:

#

DDCTOD

S

Pa

r

a

m

e

t

e

r

s

:

N

o

n

e

#

DDCTOLO Function

The

#

DD

C

T

O

L

O

f

unction routes the input DD

C

to the local EDID.

Syntax

y

:

#

DDCTOLO

Pa

r

a

m

e

t

e

r

s

:

N

o

n

e

#

DEF Function

The

#

DEF

f

unction set the

S

witcher to the

f

actor

y

de

f

ault settin

g

s.

Syntax

y

:

#

DE

F

Pa

r

a

m

e

t

e

r

s

:

N

o

n

e

17

RS-232 SERIAL CONTROL COMMAND

S

#

LOEDIDTOBA Function

The

#

L

O

EDIDT

O

BA

f

unction loads the speci

ﬁ

ed EDID

ﬁ

le and stores it in a

s

peci

ﬁ

ed EDID bank.

Syntax

y

:

#

LOEDIDTOBA

p

aram1

p

aram2

p

aram

3

Pa

r

a

m

e

t

e

r

s

:

p

aram

1

Echo mode [0 - 1]

V

a

l

ue

M

eanin

g

0

S

emi echo mod

e

1

F

u

ll

ec

h

o

m

ode

p

aram

2

EDID size [1 - 2]

2

V

a

l

ue

M

eanin

g

1

128 b

y

te EDID

2

256 b

y

te EDID

p

aram

3

EDID bank offset [1 - 7]

3

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Gefen EXT-DVIKVM-841DL User manual

Gefen EXT-DVIKVM-841DL User manual

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