Comprehensive Video CVG-606xl, CVG-808xl user manual RS-232 Control Connector Wiring

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communication between Matrix Switchers is always via RS-485 (see example in Figure 5). The RS-232 port is either a DB-9 (9-pin port) or DB-25 (25-pin port). The cable connecting your switcher to the PC should be wired as shown in Figure 4. A 9-25 pin adapter or 9-9 pin null-modem adapter is included for your convenience. The null-modem adaptor is wired as shown in Figure 4. If using the adaptor (recommended), plug it into the PC’s serial port, and connect via a flat-cable from the other end of the adaptor to your switcher. Please keep in mind that it is not recommended to extend an RS-232 signal beyond a length of 30 feet, without the use of an RS-232 to RS-422 converter at both the PC and the switcher.

If five machines and a PC are cascaded together for example, using RS-485 interconnection, disconnect the termination resistors on all machines except the fifth (see Figure 6). For similar setup, without a PC connected on the RS-485 line, disconnect all resistors except for the first and fifth machines.

Figure 3: RS-232 Control Connector Wiring

Figure 4: RS-232 and RS-485 Operation

Figure 5: Terminating the Line

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Contents CVG-606xl Contents Introduction Figures Word on Video/Audio Switchers IntroductionFactors Affecting Quality of Results CVG-606xl CVG-808xlSpecifications HOW do I GET STARTED?Unpacking and Contents Getting to Know Your Matrix SwitcherFeature Function Power Switch Illuminated switch supplies power to the unitSelect the desired input to be switched to the output ButtonsFeature Function Sync Select switchInstallation Connecting to Video DevicesConnecting to Audio Devices Using the MachinesConnecting a Video/Audio Input/Output Disconnecting a Video/Audio InputConnecting a Video/Audio Input to All Outputs Using the Audio Follow Video ModeSetting the Configuration Switches DIP Switches ConfigurationSelecting the Sync Source RS-232 and RS-485 OperationRS-232 Control Connector Wiring Basic Video-Audio Setup Component Switching using Multiple Matrix SwitchersTypical Applications 10.2.1 RGB/YUV Switching with RS-232 e.g. PC Control Taking Care of Your Matrix SwitcherTroubleshooting Power and IndicatorsVideo Signal Problem RemedyAudio Signal ControlSwitching Malfunctions Communication ProtocolBit 7 Defined as Bits 4-6 Defined as O3 O0 Output 0000 1000 0011 OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT Table of HEX Codes for the Master CVG-808xl