Comprehensive Video CVG-808xl Selecting the Sync Source, Setting the Configuration Switches

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9.3.1Selecting the Sync Source

Input sync selection is made using the "Sync Select” button located on the back panel. For an external sync operation, press the “Sync Select” button. For an internal sync operation, release the “Sync Select” button. This modifies the input circuitry to select the required input sync source.

9.3.2Setting the Configuration Switches

Setting the configuration switches is accomplished through a bank of DIP switches located on the back panel of each Matrix Switcher. Table 3 describes the settings and configurations for each of the DIP switches. To set the configuration switches, confirm that power to the Matrix Switcher is OFF, and with a small flathead screwdriver, move the DIP switches to the "ON" or "OFF" position as shown in Table 3 and Figure 3. Master/Slave DIP switches configure the Matrix Switcher for operation in a multiple switcher configuration. If a Matrix Switcher is operating and being controlled independently, it should be assumed that it is operating in the “Master” configuration.

Up to 8 Matrix Switchers may be cascaded for control via a single port by configuring one Matrix Switcher as a "master", or ID number "1", while all the others are assigned as slave Matrix Switchers or an ID other than "1". When RS-232 connection is implemented, DIP switch # 8 allows you to enable RS-232 communication between the Matrix Switcher and the PC. This is desirable, so that the controlling device “knows” that the controlled device has carried out its instructions. When RS-485 connection is used for communication between the Matrix Switcher and the PC, DIP switch # 8 should be up ("OFF"). In some applications, it may be desirable for some machines not to reply to instructions received on the RS-232 and RS-485 ports. In this scenario, you would disable the “Reply”, or acknowledgement commands. DIP switch # 5 enables or disables "reply" from the Matrix Switcher to the PC.

In the case of interconnection between more than two RS-485 receivers-transmitters (including PC), the termination resistor must be disconnected on all the devices, except the first and last machines on the communication line. DIP switch # 4 connects or disconnects the termination resistor.

Table 3: DIP Switches Configuration

MACHINE

SELF ADDRESS

DIP SWITCH

NUMBER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

1

0

3

2

1

 

 

 

 

 

 

 

 

1.

(Master)

0

0

0

ON

ON

ON

 

 

 

 

 

 

 

 

2.

 

0

0

1

ON

ON

OFF

 

 

 

 

 

 

 

 

3.

 

0

1

0

ON

OFF

ON

4.

 

0

1

1

ON

OFF

OFF

5.

 

1

0

0

OFF

ON

ON

6.

 

1

0

1

OFF

ON

OFF

7.

 

1

1

0

OFF

OFF

ON

8.

 

1

1

1

OFF

OFF

OFF

 

DIP switch #4

"ON"= Connects the termination resistor.

 

 

 

 

 

 

 

 

 

"OFF"= Disconnects the termination

 

 

 

 

 

 

 

 

 

resistor.

 

DIP switch #5

"ON"= Enables reply from switcher to PC.

 

 

 

 

 

 

 

 

 

"OFF"= Disables reply from switcher to

 

 

 

 

 

 

 

 

 

PC.

 

DIP switch #6,

Not used

 

DIP switch #7

 

 

DIP switch #8

"ON"= Enables RS-232 communication

 

 

 

 

 

 

 

 

 

between switcher and PC.

 

 

 

 

 

 

 

 

 

"OFF"= Enables RS-485 communication

 

 

 

 

 

 

 

 

 

between switcher and PC.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2: DIP switches General View

9.4RS-232 and RS-485 Operation

Connections made between your switcher and a PC are accomplished using your computer’s RS-232 communication port, or by connecting the PC to the RS-485 terminal block connector. Bear in mind that serial

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Contents CVG-606xl Contents Introduction Figures CVG-606xl CVG-808xl Word on Video/Audio SwitchersIntroduction Factors Affecting Quality of ResultsHOW do I GET STARTED? SpecificationsGetting to Know Your Matrix Switcher Unpacking and ContentsButtons Feature Function Power SwitchIlluminated switch supplies power to the unit Select the desired input to be switched to the outputSync Select switch Feature FunctionUsing the Machines InstallationConnecting to Video Devices Connecting to Audio DevicesUsing the Audio Follow Video Mode Connecting a Video/Audio Input/OutputDisconnecting a Video/Audio Input Connecting a Video/Audio Input to All OutputsRS-232 and RS-485 Operation Setting the Configuration SwitchesDIP Switches Configuration Selecting the Sync SourceRS-232 Control Connector Wiring Typical Applications Basic Video-Audio SetupComponent Switching using Multiple Matrix Switchers Taking Care of Your Matrix Switcher 10.2.1 RGB/YUV Switching with RS-232 e.g. PC ControlProblem Remedy TroubleshootingPower and Indicators Video SignalControl Audio SignalCommunication Protocol Switching MalfunctionsBit 7 Defined as Bits 4-6 Defined as O3 O0 Output 0000 1000 0011 Table of HEX Codes for the Master CVG-808xl OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT