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INTERFACES

4

Ohms)

Cross-talk

<80dB @ 1 kHz

Signal-to-Noise Ratio

>95dB

Bandwidth

10 Hz – 40 kHz

Stereo Channel Separation

>75dB @ 1 kHz,

>60dB @ 20 kHz

Frequency Compatibility

Horizontal

15-130 kHz

Vertical

25-180Hz

Minimum Video Bandwidth

350MHz

Horizontal Position Range

20%

Cross-talk

39dB @ 100MHz

Power

Internal Power Supply

90-140/200-240 V

Power Consumption

12 watts max.

Table 3. 

VA6831FC

 Electrical

VA6831FC DESCRIPTION

4

4.1 COMPUTER VIDEO INPUT (VGA-

COMPATIBLE 15-PIN HD CONNECTOR)

The two 15-pin HD inputs allow the connections
of two computers to the interface using cables
with a 15-pin HD connector on the interface end
and a matching connector on the computer end.
This 15-pin HD connector allows greater
flexibility and versatility from the 

VA6831FC. 

All

ID pins are passed through

 

for proper boot up

mode. Several computers like the PC, MAC,
SUN, and SGI can be attached using the proper
cables as described in Section 8 - Accessories.

PIN
No.

INPUT SIGNALS ON 15-PIN HD FEMALE

CONNECTOR

1

Red Video

2

Green Video

3

Blue Video

4

ID Bit (Connected to Ground when ID Bit switch
is ON)

5

Ground

6

Ground

7

Ground

8

Ground

9

No connection

10

No connection

11

ID Bit

PIN
No.

INPUT SIGNALS ON 15-PIN HD FEMALE

CONNECTOR

12

ID Bit

13

Horizontal Sync/Composite Sync

14

Vertical Sync

15

No connection

Table 4. 

VA6831FC

 Dual Input pin-outs

4.2 LOCAL MONITOR OUTPUT (15-PIN HD

CONNECTOR)

Each of the inputs has a local monitor output
through a 15-pin HD female connector. These
outputs allow the connections of a local monitor
up to 12 feet away from the interface.

These are fully buffered outputs, eliminating
reflections often caused by “Y” type monitor
breakout cables. It is not necessary to terminate
the unused output. The output is VGA
compatible, but can also be used to transmit
signals to other types of local monitors using the
provided Altinex

 

adapter cables such as VGA,

MAC, SUN, SGI, or RGB.

PIN
No.

LOCAL MONITOR OUTPUT SIGNALS ON

15-PIN HD FEMALE CONNECTOR

1

Red Video

2

Green Video

3

Blue Video

4

ID Bit /Grounded when ID Bit switch is ON

5

Ground

6

Ground

7

Ground

8

Ground

9

Composite Sync

10

No connection

11

ID Bit

12

ID Bit

13

Horizontal Sync/Composite Sync

14

Vertical Sync

15

No connection

Table 5. Dual Local Monitor Outputs pin-out

Summary of Contents for VA6831FC

Page 1: ...INTERFACES MANUAL PART NUMBER 400 0049 003 PRODUCT REVISION 0 VA6831FC DUAL INPUT SWITCHABLE ANALOG INTERFACE USER S GUIDE ...

Page 2: ...selection of our products and are confident that you will join the ranks of our many satisfied customers throughout the world This manual covers VA6831FC Dual Input Switchable Analog Interface TABLE OF CONTENTS Page PRECAUTIONS SAFETY WARNINGS 2 GENERAL 2 RACK MOUNT SAFETY GUIDELINES 2 INSTALLATION 2 CLEANING 2 FCC CE NOTICE 2 ABOUT YOUR INTERFACE 3 TECHNICAL SPECIFICATION 3 VA6831FC DESCRIPTION 4...

Page 3: ...x made mounting accessories such as brackets DA1293FC or DA1294FC and cables for optimum setup To turn off the main power be sure to remove the cord from the power outlet The power outlet socket should be installed as close to the equipment as possible and should be easily accessible Do not pull the power cord or any cable that is attached to the VA6831FC Interface If the VA6831FC Interface is not...

Page 4: ...al combination of advanced features and very competitive pricing TECHNICAL SPECIFICATIONS 3 FEATURES DESCRIPTION VA6831FC GENERAL No of Inputs 2 Audio Inputs 2 Video Inputs Computer Input Connector Two 15pin HD Female Stereo Audio Input Connector Two 5 position Terminal Blocks No of Outputs 2 Local Monitor Output Main Video Output Stereo Audio Output Local Monitor Output Connector Two 15 pin HD Fe...

Page 5: ...ue Video 4 ID Bit Connected to Ground when ID Bit switch is ON 5 Ground 6 Ground 7 Ground 8 Ground 9 No connection 10 No connection 11 ID Bit PIN No INPUT SIGNALS ON 15 PIN HD FEMALE CONNECTOR 12 ID Bit 13 Horizontal Sync Composite Sync 14 Vertical Sync 15 No connection Table 4 VA6831FC Dual Input pin outs 4 2 LOCAL MONITOR OUTPUT 15 PIN HD CONNECTOR Each of the inputs has a local monitor output t...

Page 6: ...INTERFACES 5 ...

Page 7: ...O position the VA6831FC selects INPUT 2 as the default turning LED 2 red 4 5 HORIZONTAL POSITION ADJUSTMENT Most monitors and projectors have the ability to adjust the horizontal position of the image but sometimes it is helpful to control this feature at the interface This control is especially useful when multiple computers are switched to a single display if the Horizontal positions for each co...

Page 8: ...ing brackets through two screens on each side of the VA6831FC Step 2 The VA6831FC may be used with either 110V or 220V and offers a universal connector for ease of use throughout the world Before plugging in the power cord to the unit please verify that the voltage rating of 110V 220V on the FUSE CLIP located on the rear of the VA6831FC is the same as the voltage rating on the power outlet To chan...

Page 9: ...nit The VA6831FC will operate successfully as long as the cables are attached properly and technical specifications are followed DIP SWITCH OFF ON Not Used X Sync on Green X Ch1 Horizontal Delay X Ch2 Horizontal Delay X ID Bit 1 X ID Bit 2 X Table 7 Dip switch default settings 7 1 SYNC ON GREEN OUTPUT SWITCH Often systems that use large matrix switchers are designed to switch signals in RGsB forma...

Page 10: ...1 1U High Rack Wide TM1272 1U High Rack Wide with 15 pin HD connector plate TM1273 1U High Rack Wide with snap in connectors TM1274 1U High Rack Wide with snap in POWER connectors Input cable Local Monitor Cables and Output Cables must be ordered separately from following list Model No Description INPUT LOCAL MONITOR CABLES MS8121CA MAC Local Monitor Cable MS8122CA MAC Input Cable MS8123CA SUN SGI...

Page 11: ...t will have the same type of Sync as the source 4 Why do we have balanced input and unbalanced output If you use the VA6831FC for a distance of less than 500 ft with an output cable there is no need to have balanced input and balanced output If balanced audio input is fed into the VA6831FC Interface the unbalanced audio output will provide a good signal quality TROUBLESHOOTING GUIDE 10 1 The power...

Page 12: ...roducts that you have ordered and that this product fulfills your need In the unlikely event that an Altinex product needs to be returned please follow the policies below Altinex will accept product returns for a period of 30 days from authorized Altinex dealers Products should be returned in an unopened package If the product has been opened the restocking fees will apply For the restocking fee a...

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