ASTRO VD-1673 Instruction Manual

HDMI Switcher

VD-1673

Instruction Manual

Ver 1.10

HDMI Switcher

VD-1673

Instruction Manual

2009.5

Ver1.10

ASTRODESIGN,Inc

i

CONTENTS

INTRODUCTION................................................................................................................................................ v

SAFETY PRECAUTIONS................................................................................................................................... v

In order to ensure safe operation ............................................................................................................ v

Concerning the power cord..................................................................................................................... v

Concerning foreign matter....................................................................................................................... v

Concerning this product ..........................................................................................................................vi

Concerning impact ..................................................................................................................................vi

Concerning the installation......................................................................................................................vi

When trouble or malfunctioning has occurred.........................................................................................vi

Concerning the configuration of this manual ..................................................................................................... vii

What is packed with the switcher ......................................................................................................................vii

Chapter 1 CONCERNING THE VD-1673 ................................................................................................................ 1

1.1 General description................................................................................................................................. 1

1.2 Features.................................................................................................................................................. 1

1.3 Panel parts and their functions................................................................................................................ 2

1.3.1 Front panel................................................................................................................................... 2

1.3.2 Rear panel ................................................................................................................................... 3

1.4 Sequence of settings............................................................................................................................... 4

1.5 Examples of connections ........................................................................................................................ 5

Chapter 2 CONTROL METHODS (CONTROL MODES)......................................................................................... 7

2.1 Exercising control using the switcher’s front panel switches................................................................... 7

2.1.1 Setting the CONFIGURATION switches ...................................................................................... 7

2.1.2 Control method ............................................................................................................................ 8

2.2 Exercising control using the switcher’s EXT I/F connector...................................................................... 8

2.2.1 Setting the CONFIGURATION switches ...................................................................................... 8

2.2.2 Control method ............................................................................................................................ 9

2.3 Exercising control using a VG series generator .................................................................................... 10

2.3.1 Setting the CONFIGURATION switches .................................................................................... 10

2.3.2 Control method using a VG-870 series generator...................................................................... 10

2.3.3 Control method - VG-849 or 859 series generator..................................................................... 12

Chapter 3 DESCRIPTION OF FUNCTIONS.......................................................................................................... 15

3.1 Output mode ......................................................................................................................................... 15

3.1.1 SELECTION mode..................................................................................................................... 15

3.1.2 DISTRIBUTION mode................................................................................................................ 15

3.2 Input port selection................................................................................................................................ 16

3.3 Output port selection............................................................................................................................. 16

3.4 Pre-emphasis level................................................................................................................................ 16

3.5 Operations during power OFF............................................................................................................... 17

ii

Chapter 4 PRODUCT SPECIFICATIONS.............................................................................................................. 19

4.1 Main specifications................................................................................................................................ 19

4.1.1 Input/output specifications ......................................................................................................... 19

4.1.2 EXT I/F specifications ................................................................................................................ 19

4.1.3 General specifications................................................................................................................ 20

4.2 Connector specifications....................................................................................................................... 21

4.2.1 HDMI connector specifications .................................................................................................. 21

4.2.2 EXT I/F connector specifications................................................................................................ 22

4.3 Precautions........................................................................................................................................... 23

Concerning the performance of the VD-1673........................................................................................ 23

Concerning the CONFIGURATION switches ........................................................................................ 23

Concerning the CEC line....................................................................................................................... 23

Concerning the pre-emphasis level....................................................................................................... 23

Concerning the “DISTRIBUTION” output mode .................................................................................... 23

iii

Updated version history

Ver. Date Page Section no. Description of changes made

1.00 2009/03/16 Initial version

10 2.3.2 Added “Control method - VG-870 series generator.”

23 4.3 Added “Concerning the CONFIGURATION switches.”

1.10 2009/04/07

-- -- Errors corrected, etc.

iv

v

BEFORE OPERATION

INTRODUCTION

Thank you very much for purchasing this HDMI switcher.
This manual contains details on the operation procedures to be followed when the VD-1673 is used, the
checkpoints and precautions to be observed, and so on. Improper handling may result in malfunctioning so
before using the VD-1673, please read through these instructions to ensure that you will operate the switcher
correctly. Keep this manual in a safe place for future reference.

SAFETY PRECAUTIONS

Malfunctioning or trouble may result if this product is not handled properly. Before proceeding to operate the
product, be absolutely sure to read the safety precautions set forth below to ensure proper operation.

In order to ensure safe operation

 Do not subject the switcher to impact or throw it. Doing so may cause the

switcher to malfunction, explode or generate abnormally high levels of heat,
possibly resulting in a fire.

 Do not use the switcher where there is a danger of ignition or explosions.
 Do not place the switcher inside a microwave oven or other heating kitchen

appliance or inside a high pressure vessel. Doing so may heat up the switcher
to abnormally high levels, cause smoking, running the risk of the switcher’s
catching fire and/or damaging the circuit components.

 This switcher contains some high-voltage parts. If you touch them, you may

receive an electric shock and burn yourself so do not attempt to disassemble,
repair or remodel the switcher.

 If there is a thunderstorm while the switcher is being used outdoors,

immediately turn off its power, disconnect the power cable from the main unit,
and move the switcher to a safe place.

Concerning the power cord

 Always take hold of the molded part of the plug when disconnecting the power

cord.

 Do not use force to bend the power cord or bunch it up for use. Doing so may

cause a fire.

 Do not place heavy objects on top of the power cord. Doing so may damage the

cord, causing a fire or electrical shock.

Concerning foreign matter

 Do not spill liquids inside the monitor or drop inflammable object s or metal part s

into it. Operating the switcher under these conditions may cause a fire, electric
shocks and/or malfunctioning.

vi

Concerning this product

 When connecting this product to another unit (such as a TV set or DVD player),

use the FG cable provided or a similar cable to connect the frame ground (FG)
terminal on the other unit to the frame ground (FG) terminal on the VD-1673
switcher. Failure to connect these terminals may cause the product to fail or
malfunction.

EXT I/F IN1 IN2 OUT1 OUT2 OUT3 OU T4 OUT5 OUT6 OUT 7 OUT8

Fig. Connecting the FG terminals

Concerning impact

 This is a precision instrument and, as such, subjecting it to impact may cause

malfunctioning. Take special care when moving the switcher.

 Do not drop the switcher.

Concerning the installation

 Install the switcher in a stable location. Do not stand the switcher on one of its

sides. Doing so may cause the switcher’s temperature to rise due to heat
generation, possibly resulting in malfunctioning.

When trouble or malfunctioning has occurred

 In the unlikely event that trouble or malfunctioning should occur, disconnect the

switcher’s power cable, and contact your dealer or an ASTRODESIGN sales
representative.

vii

Concerning the configuratio n of this manual

This manual contains the instructions for operating the VD-1673 switcher. It is configured as shown in the table
below, and it describes the control methods, precautions and other aspects. Read through the manual carefully
to ensure that the switcher will be operated properly.

Chapter Description

INTRODUCTION This chapter describes the safety precautions, configuration of the

manual and what is packed with the switcher.

1 CONCERNING THE VD-1673 This chapter gives an overview of the VD-1673 and describes its

features.

2 CONTROL METHODS This chapter describes the methods used to control the VD-1673.

3 DESCRIPTION OF FUNCTIONS This chapter describes the VD-1673’s functions.

4 PRODUCT SPECIFICATIONS This chapter describes the VD-1673’s specifications.

What is packed with the switcher

The switcher comes with the following items. Be absolutely sure to use only the genuine accessories which are
supplied with this switcher since the use of any non-designated items may cause malfunctioning.

 Standard accessories

Accessory supplied Quantity

VD-1673 main unit 1

VD-1673 instruction manual 1

Power cable 1

FG cable 1

viii

1

1

1

CONCERNING THE VD-1673

1.1 General description

The model VD-1673 is an HDMI signal switcher which is provided with two HDMI input ports and
eight output ports. It enables the input ports to be switched for TVs which have a multiple number of
HDMI inputs without having to change the cable connections. When it is used together with a
generator in the VG series, it enables the signals of the input ports to be monitored easily.

The switcher makes it possible to distribute the TMDS signals among the HDMI input signals, and
output them when HDCP is not going to be executed.

1.2 Features

 HDMI input selection

One of the two HDMI signals supplied to the VD-1673 can be selected and output.

 HDMI output selection

Any one of the eight ports for outputting the signals from the VD-1673 can be selected.

 HDMI output distribution

When HDCP is not going to be executed, it is possible to distribute the TMDS signals among
the HDMI input signals supplied to the VD-1673, and output them.

 Control method selection

Three control methods are available to establish the settings to be used for selecting and
distributing the HDMI input and output signals: The first method exercises control using the
switches on the VD-1673 unit, the second exercises external control (TTL level) from the
general-purpose connectors, and the third exercises external control from a VG series
generator.

 Connection with a VG series generator

By using the VD-1673 in combination with a VG series generator, control over the VD-1673 can
be registered as a series of programmed settings in the VG series generator.

2

1.3 Panel parts and their functions

1.3.1 Front panel

(1) (2) (3) (4) (5) (6)

OUTPUT
SELECTSELECT

INPUT

OFF

OFF

OFF

OFF

ON

ON

21

FRONT SW

EXT I/F

VG

SW No .

SELECTION

DISTRIB UTIO N

VG

SW No.

OFF

3

ON

OFFON1

CONTROL OUTPUT

1357

2468

1

2

POWER

|

○

HDMI SWITCHER VD-1673

234 5

12345

PRE-EMPHASIS

SW No .56

0dB

3dB

6dB

OFFOFF

OFF

OFFONON

Fig. Front panel

Table Names of the parts and what they are used for

No. Name of part Description of setting

1 INPUT SELECT switch This is used to select the input ports when “front panel switches”

control has been selected as the control mode.

2 INPUT SELECT LED These indicate the currently selected input port. (The lighted LED

indicates the corresponding port which is currently selected.)

3 OUTPUT SELECT switch This is used to select the output ports when “front panel switch”

control has been selected as the control mode.

4 OUTPUT SELECT LED These indicate the output ports which are currently selected. (The

lighted LEDs indicate the corresponding ports which are currently
selected.)

5 CONFIGURATION switches Refer to “CONFIGURATION switches” below (on page 3).

6 POWER switch This used to turn the power of the VD-1673 on and off.

Chapter 1 CONCERNING THE VD-1673

3

 CONFIGURATION switches

The CONFIGURATION switches have the functions described below.

Table CONFIGURATION switches

Name of function Switch no. Description

1 2 Used to set the control mode.

* Refer to “Chapter 2 Control Methods (Control

Modes)” (on page 7).

(OFF) (OFF) Control is exercised using the “front panel switches.”

(ON) (OFF) Control is exercised using the “EXT I/F connector.”

CONTROL

(OFF) (ON) Control is exercised using a “VG series generator.”

3 Used to set the output mode when “front panel switch”

control has been selected as the control mode.
* Refer to “3.1 Output modes” (on page 15).

(OFF) The switcher operates in the switching mode.

OUTPUT

(ON) The switcher operates in the distribution mode.

4 5 Used to set the pre-emphasis level of the TMDS

signals.
* Refer to “3.4 Pre-emphasis level” (on page 16).

(OFF) (OFF) 0 dB

(ON) (OFF) 3 dB

PRE-PMPHASIS

(OFF) (ON) 6 dB

6 7 8

Set all of these three switches to OFF.

Reserve

OFF OFF OFF

1.3.2 Rear panel

(7) (8) (9)

AC IN (100-240V)T 3.15A

EXT I / F IN1 IN2 OUT1 OUT2 OU T3 OUT4 OUT5 OUT6 OUT7 OUT8

Fig. Rear panel

Table Names of the parts and what they are used for

No. Name of part Description of setting

7 EXT I/F connector Used to control the VD-1673 by inputting signals to this connector when “EXT I/F

connector” control has been selected as the control mode.

8 INPUT These are the HDMI input ports of the VD-1673.

9 OUTPUT These are the HDMI output ports of the VD-1673.

4

1.4 Sequence of settings

Follow the sequence of steps below when using the VD-1673.

(1) Set the control mode.

Select the control mode, and set it using the CONFIGURATION switches on the front panel of
the VD-1673.

(2) Connecting the units

Connect the units to the HDMI input and output ports of the VD-1673.

(3) Setting the input ports

Select the input ports in line with the control mode selected.

(4) Setting the output ports

Select the output ports in line with the control mode selected.

(5) Setting the output mode

Select the output mode in line with the control mode selected.

(6) Set the pre-emphasis level.

Set the pre-emphasis level of the TMDS signals.

Chapter 1 CONCERNING THE VD-1673

5

1.5 Examples of connections

 When controlling the switcher from the EXT I/F connector

AC IN(100-240V)T3.15A

EXT I/F

IN1

リモコン等の治具

 When controlling the switcher from the VG series generator

Sink機器

AC IN(100-240V) T3.15A

EXT I /F IN1 IN2 OUT1 OUT2 OU T3 OUT4 OUT5 OUT 6 OUT 7 OUT8

Source機器1

Source機器2

Remote control unit
or other jig

Source unit

Source unit 2

Sink units

6

 When using the SELECTION mode as the HDMI output mode

Sink機器

AC IN(100-240V)T3.15A

EXT I /F IN1 IN2 OUT 1 OUT2 OUT3 OU T4 OUT5 OU T6 OUT7 OUT 8

VGシリーズ

HDCP OK

EDID OK

CEC OK

 When using the DISTRIBUTION mode as the HDMI output mode

(* only when HDCP is OFF)

Sink機器

AC IN(100-240V)T3.15A

EXT I /F IN1 IN 2 OUT1 OU T2 OUT3 OUT4 OUT5 OUT6 OUT 7 OUT8

VGシリー ズ

VG series generato

r

Sink units

Sink units

VG series generato

r

7

2

2

CONTROL METHODS
(CONTROL MODES)

The following three control methods (control modes) are available for the VD-1673.

Table Control modes

Control mode Description Details

Front panel switches The switcher is controlled using the switches on

its front panel.

2.1 Exercising control using the
switcher’s front panel switches

EXT I/F connector The switcher is controlled by inputting signals to

the EXT I/F connector.

2.2 Exercising control using the
switcher’s EXT I/F connector

VG series generator The switcher is controlled using the menus of a

VG series generator.

2.3 Exercising control using a
VG series generator

Once the control method has been set, the switches of the VD-1673 must be used to set the switcher’s
operations in line with the control method selected.

2.1 Exercising control using the switcher’s front panel
switches

The VD-1673 can be controlled using the CONFIGURATION switches, INPUT SELECT switch and
OUTPUT SELECT switch on its front panel.

2.1.1 Setting the CONFIGURATION switches

In order to enable control to be exercised using the switches on the switcher’s front panel,
CONFIGURATION switches no. 1, 2 and 3 on the front panel must be set to the positions shown in
the table below.

Table CONFIGURATION switch settings

Switch no. Name of function Setting

1 OFF

2

CONTROL

OFF

3 OUTPUT Refer to “2.1.2 Control methods” below.

8

2.1.2 Control method

Set the CONFIGURATION switch, INPUT SELECT switch and OUTPUT SELECT switch on the
switcher’s front panel to the positions shown in the table below.

Table Control method selected using the front panel switches

Setting item Operation Description

Input port selection Press the INPUT SELECT switch. Each time the switch is pressed, the input

port is switched.
(Input 1 → input 2 → input 1)

Output port selection Press the OUTPUT SELECT switch. Each time the switch is pressed, the output

port is switched.
(Output 1 → output 2 → output 3 ... output 8

→ output 1) *1

OFF SELECTION mode *2 Output mode selection CONFIGURATION switch no.3

ON DISTRIBUTION mode *2

2.2 Exercising control using the switcher’s EXT I/F
connector

The VD-1673 can be controlled using the EXT I/F connector on its rear panel.

2.2.1 Setting the CONFIGURATION switches

In order to enable control to be exercised using the EXT I/F connector on the switcher’s rear panel,
CONFIGURATION switches no.1 and 2 on the front panel must be set to the positions shown in the
table below.

Table CONFIGURATION switch settings

Switch no. Name of function Setting

1 ON

2

CONTROL

OFF

*1 When “SELECTION mode” has been set as the output mode, the TMDS, DDC and

CEC signals are all switched; when “DISTRIBUTION mode” has been set as the
output mode, only the DDC and CEC signals are switched.

*2 For further details on the SELECTION mode and DISTRIBUTION mode, refer to

“3.1 Output modes” (on page 15).

CAUTION

Chapter 2 CONTROL METHODS (CONTROL MODES)

9

2.2.2 Control method

Set the signals of the EXT I/F connector as shown in the table below. For details on the connector
pin positions, refer to “4.2.2 EXT I/F connector” (on page 22); for details on the input levels, refer to
“4.1.2 EXT I/F” (on page 19).

Table Control method selected using the EXT I/F connector

Setting item Pin no. Setting *1 Description

111b Output port 1

110b Output port 2

101b Output port 3

100b Output port 4

011b Output port 5

010b Output port 6

001b Output port 7

Output port selection *2 3-1 (OUT_SEL[2-0])

000b Output port 8

1b Input port 1 Input port selection 6 (IN_SEL)

0b Input port 2

1b SELECTION mode *3 Output mode selection 7 (SW_DIV)

0b DISTRIBUTION mode *3

*1 At the “1” setting, input a high-level signal or leave the pin open; at the “0” setting,

input a low-level signal.

*2 When “SELECTION mode” has been set as the output mode, the TMDS, DDC and

CEC signals are all switched; when “DISTRIBUTION mode” has been set as the
output mode, only the DDC and CEC signals are switched.

*3 For further details on the SELECTION mode and DISTRIBUTION mode, refer to

“3.1 Output modes” (on page 15).

CAUTION

10

2.3 Exercising control using a VG series ge nerator

By connecting a VG series generator to the switcher’s input 1 port (IN1), the operations of the
VD-1673 can be controlled using the interface of a VG series generator.

2.3.1 Setting the CONFIGURATION switches

In order to enable control to be exercised using a VG series generator, CONFIGURATION switches
no.1 and 2 on the front panel of the VD-1673 must be set to the positions shown in the table below.

Table CONFIGURATION switch settings

Switch no. Name of function Setting

1 OFF

2

CONTROL

ON

2.3.2 Control method using a VG-870 series generator

To control the VD-1673 using a VG-870 series generator, proceed with the connections and control
in the sequences given below.

 Connections

1. Using the HDMI cable, connect the HDMI output port of the VG-870 series generator
to be used to the input 1 port of the VD-1673.

2. Turn on the power of the VD-1673.

3. Turn on the power of the VG-870 series generator.

* The VG-870 series generator will not recognize the VD-1673 unless the connections

are performed in the sequence described above.

* When exercising control over the VD-1673 using a VG series generator, connect the

generator to the input 1 port of the VD-1673. (The switcher cannot be controlled in
this way if the generator is connected to the input 2 port.)

CAUTION

Chapter 2 CONTROL METHODS (CONTROL MODES)

11

 Control

When the VG-870 series generator is operated in the sequence shown below, the “VD-1673
(HDMI SWITCHER)” control screen appears on the display.

MENU → select “Program Edit” → SET → select “OUTPUT” → SET

→ select “Digital OUTPUT” → SET → select “HDMI” → SET → select “VD-1673”
→ SET

Fig. VG-870 series generator front panel display 1: VD-1673 setting

For each of the generator’s output ports, the following settings are available.

Table Control method using VG-870 series generator

Setting item Description Setting Description

0 SELECTION mode *2 Mode Output mode selection

1 DISTRIBUTION mode *2

1 Input port 1 In Input port selection

2 Input port 2

1 Output port 1

2 Output port 2

3 Output port 3

4 Output port 4

5 Output port 5

6 Output port 6

7 Output port 7

Out *1 Output port selection

8 Output port 8

CAUTION

*1 When “SELECTION mode” has been set as the output mode, the TMDS, DDC and

CEC signals are all switched; when “DISTRIBUTION mode” has been set as the
output mode, only the DDC and CEC signals are switched.

*2 For further details on the SELECTION mode and DISTRIBUTION mode, refer to

“3.1 Output modes” (on page 15).

12

2.3.3 Control method - VG-849 or 859 series generator

To control the VD-1673 using a VG-849 or 859 series generator, proceed with the connections and
control in the sequences given below.

 Connections

1. Using the HDMI cable, connect the HDMI output port of the VG-849 or 859 series
generator to the input 1 port of the VD-1673.

2. Turn on the power of the VD-1673.

3. Turn on the power of the VG-849 or 859 series generator.

 Control

When the VG-849 or 859 series generator is operated in the sequence shown below, the
“HDMI Switcher Setting” control screen appears on the display.

FUNC → 3 → SET → TIMING → SHIFT → B or C (* Press the
number which will result in displaying “HDMI Switcher Setting” on the bottom level of the front
panel display.)

Timing Edit: B (0 - B)
HDMI Switcher Setting

Fig. VG-849/859 series generator front panel display 1: Timing data selection

→ SET

Mode: Selection (0/1)
In: 1 (1/2) Out: 1 (1-8)

Fig. VG-849/859 series generator front panel display 2: HDMI Switcher Setting

* The VG-849 or 859 series generator will not recognize the VD-1673 unless the

connections are performed in the sequence described above.

* When exercising control over the VD-1673 using a VG series generator, connect the

generator to the input 1 port of the VD-1673. (The switcher cannot be controlled in
this way if the generator is connected to the input 2 port.)

CAUTION

Chapter 2 CONTROL METHODS (CONTROL MODES)

13

Table Control method using VG series generator

Setting item Description Setting Description

0 SELECTION mode *2 Mode Output mode selection

1 DISTRIBUTION mode *2

1 Input port 1 In Input port selection

2 Input port 2

1 Output port 1

2 Output port 2

3 Output port 3

4 Output port 4

5 Output port 5

6 Output port 6

7 Output port 7

Out *1 Output port selection

8 Output port 8

*1 When “SELECTION mode” has been set as the output mode, the TMDS, DDC and

CEC signals are all switched; when “DISTRIBUTION mode” has been set as the
output mode, only the DDC and CEC signals are switched.

*2 For further details on the SELECTION mode and DISTRIBUTION mode, refer to

“3.1 Output modes” (on page 15).

CAUTION

14

15

3

3

DESCRIPTION OF FUNCTIONS

The VD-1673 can select any one of the input and output ports and output signals or it can distribute the signals
from a multiple number of output ports, and output them. These functions are described in more detail below.

3.1 Output mode

The VD-1673 can output the HDMI signal of the input port selected from the two input ports through
its output ports. Two modes are used for outputting the signals.

3.1.1 SELECTION mode

When “SELECTION mode” has been selected as the output method setting, one of the VD-1673’s
output ports can be selected for outputting the signals. HDMI signals are not sent through the output
ports which are not selected. (The same status is established as when the power of the source unit
is OFF.)

Use the “SELECTION mode” setting if the TMDS signals input to the VD-1673 have been encoded
by the content protection function using HDCP.

3.1.2 DISTRIBUTION mode

When “DISTRIBUTION mode” has been selected as the output method setting, the TMDS signals
are output from all the VD-1673’s output ports.

Use the “SELECTION mode” setting if the TMDS signals input to the VD-1673 are encoded by the
content protection function using HDCP.

*1 The DDC and CEC signals among the HDMI signals are also switched.

*2 If the connection of the sink unit cannot be verified by the hot plug signal, the TMDS

output of the unit’s port concerned is set to OFF.

* The DDC and CEC signals among the HDMI signals take effect only for those output

ports selected.

* If “DISTRIBUTION mode” has been selected when TMDS signals encoded using

HDCP have been input, the signals will be output normally only through the output
ports selected.

* If the connection of the sink unit cannot be verified by the hot plug signal, the TMDS

output of the unit’s port concerned is set to OFF.

CAUTION

CAUTION

16

3.2 Input port selection

One of the VD-1673’s two input ports can be selected for inputting the signals.

3.3 Output port selection

One of the VD-1673’s eight output ports can be selected or signals can be distributed to all of its
output ports and then output.

3.4 Pre-emphasis level

The pre-emphasis level of the TMDS output can be changed by the VD-1673. Set switches no.4 and
5 among the CONFIGURATION switches on the front panel of the switcher to the positions shown in
the table below.

Table CONFIGURATION switch settings

Switch no.

4 5

Pre-emphasis level

OFF OFF 0 dB

OFF ON 3 dB

ON OFF 6 dB

* The DDC and CEC lines take effect only for the input port which has been selected.

The DDC and CEC signals of the port which has not been selected are cut off.

* The rated values for the TMDS characteristics as defined under the HDMI standard

are satisfied only when the pre-emphasis level setting is “0 dB.”

CAUTION

* In the “DISTRIBUTION mode,” only the TMDS signals are distributed. The DDC and

CEC signals take effect only for the output ports which have been selected.

* If the connection of the sink unit cannot be verified by the hot plug signal, the TMDS

output of the unit’s port concerned is set to OFF.

CAUTION

CAUTION

Chapter 3 DESCRIPTION OF FUNCTIONS

17

3.5 Operations during power OFF

When no power is supplied to the VD-1673, the operations of the DDC line items are performed in
the modes below.

Table Operations during power OFF

Setting item Description

Input port selection Input port 1

Output port selection Output port 1

* The TMDS signals are OFF both for input and output.

* The CEC signals are set to the status in which the input and output connections

have been cut off.

* The CEC signals are set to the cut-off status for both input ports 1 and 2.

CAUTION

18

19

4

4

PRODUCT SPECIFICATIONS

4.1 Main specifications

4.1.1 Input/output specifications

Table Input/output specifications

Item Specification

Input 2 inputs

Output 8 outputs

Signal formats TMDS, CEC, DDC, hot plug, 5 V, etc.

Frequency supported 1.65 GHz (1080p60: 24 bpp, 1080i60: 36 bpp supported)

4.1.2 EXT I/F specifications

 Specifications

Table EXT I/F connector signal specifications

Item Specification

Polarity Low active

VIH 2.0 V to 5.25 V or open

VIL 0 V to 0.6 V

 Input circuit

EXT I/F Pin

VCC

+3.3V

VCC

VCC

47Ω

Fig. EXT I/F input circuit

20

4.1.3 General specifications

Table General specifications

Item Specification

Supply voltage AC100 V to 240 V

Power line frequency 50/60 Hz

Power consumption 10 W

External dimensions 140 mm × 370 mm × 44 mm

Weight 1.32 kg

Ambient operating temperature 5°C to 40°C

Ambient operating humidity 30% to 80% RH (no condensation)

Chapter 4 PRODUCT SPECIFICATIONS

21

4.2 Connector specifications

4.2.1 HDMI connector specifications

1

2

19

18

Fig. HDMI connector

Table HDMI connector pin assignment

Pin no. Signal Pin no. Signal

1 TMDS Data 2+ 11 TMDS Clock Shield

2 TMDS Data 2 Shield 12 TMDS Clock -

3 TMDS Data 2- 13 CEC

4 TMDS Data 1+ 14 Reserved (N.C. on device)

5 TMDS Data 1 Shield 15 SCL

6 TMDS Data 1- 16 SDA

7 TMDS Data 0+ 17 DDC/CEC Ground

8 TMDS Data 0 Shield 18 +5 V Power

9 TMDS Data 0- 19 Hot Plug Detect

10 TMDS Clock + -- --

22

4.2.2 EXT I/F connector specifications

 Connector used

D-Sub 9-pin female (CD6109SA1F0-E (receptacle)) or equivalent

 Pin assignment

15

69

Table EXT I/F connector pin assignment

Pin no. Signal Pin no. Signal

1 OUT_SEL[0] 6 IN_SEL

2 OUT_SEL[1] 7 SW_DIV

3 OUT_SEL[2] 8 Reserve

4 Reserve 9 Ground

5 Ground -- --

Chapter 4 PRODUCT SPECIFICATIONS

23

4.3 Precautions

Concerning the performance of the VD-1673

• Depending on the signals which are input to the VD-1673, it may not be possible to output the output
signals properly.

• It is not recommended that the VD-1673 be used at multiple stages.

Concerning the CONFIGURATION switches

• The reserve bits must be set to OFF without fail.

Concerning the CEC line

• CEC communication is possible only using the input port selected and the output port or ports selected.
(The CEC line for the input and output ports not selected is cut off.)

• While the switcher’s power is OFF, the CEC line for the input port and output port is cut off. (While the
power is OFF, CEC communication with the VD-1673 in between units on either side is not possible.)

Concerning the pre-emphasis level

• When the pre-emphasis level has been set to “3 dB” or “6 dB,” the TMDS characteristics will not satisfy
the ratings under the HDMI standard.

Concerning the “DISTRIBUTION” output mode

• The DDC and CEC signals among the HDMI signals take effect only for those output ports selected.

• If “DISTRIBUTION mode” has been selected when TMDS signals encoded using HDCP have been input,
the signals will be output normally only through the output ports selected.

24

VD-1673 Instruction Manual

NOTICE

●An incorrectly collated manual or a manual with missing pages will be

replaced.

●

All copyrights pertaining to this product are the property of ASTRODESIGN.

●

This manual may not be copied in whole or in part without written
permission.

●

The contents of this manual are subject to change without prior notice due
to improvements.

●

The manufacturer will not be liable for any effects caused by incorrect
operation.

●

All inquiries concerning this product should be addressed to your dealer or
to the manufacturer at the contact numbers given below.

T0160

●

The products and product names mentioned in this manual are the
trademarks and registered trademarks of the comp anies concerned.