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INTERFACES

9

position of the image can be adjusted through
the Horizontal Position Control knob located on
the front panel. Similarly, one can only adjust the
position of the image on the display for Input 2
using the Horizontal position control knob when
the CH2 Horizontal Delay switch is in the OFF
position.

7.3 I.D. BIT SWITCH 1& 2

Many computers use ID Bits or “Sense Pins” to
recognize that a monitor has been connected to
its video output port. Often, these ID Bits will
allow the computer to recognize what type of
monitor is connected in terms of its scan rate
compatibility.  When the ID Bit switch is in the
ON position, the 

VA6831FC

 allows the main ID

Bit (pin 4 on the input connector) to be
connected to the Ground signal.

This is used primarily when interfacing laptop
computers to imitate the presence of a local
monitor. Typically, this recognition will take place
during the boot up stage. If your Interface does
not output video on the display, then place this
switch in the ON position and reboot the
computer. When left in the OFF position, this ID
Bit will be passed through to the local monitor
output port.

ACCESSORIES

8

Model No.

Description

RACK MOUNT ACCESSORIES

DA1293SX

Rack/Wall Shelf fits two 

VA6831FC

units side by side

DA1294SX

Rack/Wall mount ears for single

VA6831FC
TABLE MOUNT BRACKETS

TM1271

1U High, ½ Rack-Wide

TM1272

1U High, ½ Rack-Wide with 15-pin
HD connector plate

TM1273

1U High, ½ Rack-Wide with snap-in
connectors

TM1274

1U High, ½ 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 Local Monitor Cable

MS8124CA

SUN/SGI Input Cable

MS8125CA

VGA Local Monitor Cable

MS8126CA

VGA Input Cable

MS8129CA

5 BNC Input/Local Monitor Cable

4 BNC TO 4 BNC COAXIAL CABLE

CB4103MR

3 feet, 4 BNC to 4 BNC coaxial cable

CB4106MR

6 feet, 4 BNC to 4 BNC coaxial cable

CB4112MR

12 feet, 4 BNC to 4 BNC coaxial
cable

CB4125MR

25 feet, 4 BNC to 4 BNC coaxial
cable

CB4150MR

50 feet, 4 BNC to 4 BNC coaxial
cable

CB4175MR

75 feet, 4 BNC to 4 BNC coaxial
cable

CB41100MR

100 feet, 4 BNC to 4 BNC coaxial
cable

CB41150MR

150 feet, 4 BNC to 4 BNC coaxial
cable

 5 BNC TO 5 BNC COAXIAL CABLE

CB4203MR

3 feet, 5 BNC to 5 BNC coaxial cable

CB4206MR

6 feet, 5 BNC to 5 BNC coaxial cable

CB4212MR

12 feet, 5 BNC to 5 BNC coaxial
cable

CB4225MR

25 feet, 5 BNC to 5 BNC coaxial
cable

CB4250MR

50 feet, 5 BNC to 5 BNC coaxial
cable

CB4275MR

75 feet, 5 BNC to 5 BNC coaxial
cable

CB42100MR

100 feet, 5 BNC to 5 BNC coaxial
cable

CB42150MR

150 feet, 5 BNC to 5 BNC coaxial
cable

All 

MS81

 Series cables listed above are 3 ft. long.

These cables are available in 6 ft. and 12 ft.
lengths. Please call 1-714-990-2300 for a wider
selection of cables.

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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