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Antona ANC-6023 User Manual

Rs232/rs422/video sync interface adapter
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Rev A

User's Manual

ANC-6023

RS232/RS422/Video Sync Interface Adapter

1

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Summary of Contents for Antona ANC-6023

  • Page 1: User's Manual

    Rev A User’s Manual ANC-6023 RS232/RS422/Video Sync Interface Adapter...

  • Page 2: Copyright

    PURCHASER MUST OBTAIN A RETURN AUTHORIZATION FROM THE ANTONA CORPORATION PRIOR TO RETURNING ANY PIECE OF EQUIPMENT. Shipment to the Antona Corporation will be at the expense of the purchaser, return shipment will be at the expense of the Antona Corporation for all repairs.

  • Page 3: Table Of Contents

    Video vertical synchronization interrupt ................ 5 Serial Port ........................6 Cable Termination ......................6 Adapter Jumper Options ....................7 External connections to ANC-6023 ................10 DB9 RS-232C Signals ....................10 DB9 to DB25 pin chart ....................10 RS422 connections to ANC-6023................. 10 DB9 RS-422 Signals for Master (Multimedia Controller) ...........

  • Page 4: Features

    The RS-422 connector can accept +5v to +12v regulated DC at 150 milliamps to provide the added power to the adapter. The ANC-6023 allows the designer to apply composite video sync that is readable on the serial port’s Data Carrier Detect (DCD, referred to as RLSD on some systems) or Ring Indicator (RI) line.

  • Page 5: Electrical Specifications

    The ANC-6023 may require the mounting screws be used as both a DB-9 cable and coax cable will be installed at the opposite end will exert a force on the adapter. The user of the ANC-6023 should be aware of this, and take the appropriate care with cable strain relieving.

  • Page 6: Serial Port

    In addition to the recommended external power supply, 3 of the PC’s serial port RS-232C level signals are used by the Antona adapter to derive power from; RTS, DTR and TX. The user must insure that the RTS and DTR signals from the PC’s serial port are brought to a high output level 100 ms before communicating over the adapter.

  • Page 7: Adapter Jumper Options

    Adapter Jumper Options figure 1 - ANC-6023 jumper locations When shipped, the ANC-6023 is set for transmit and receive always. The output pins are set for ‘master’, the terminating resister is disconnected and video sync is connected to DCD (JP7).
  • Page 8 signal to control driver output, the vertical position should be set. See Appendix C, the middle left hand of the schematic for the location of JP1. The photo below (photo 1 below) shows how lowering the RTS line on the RS-232 side of the adapter (lower trace - showing RTS signal after being translated to the TTL level within the adapter) precedes transmitting the data byte out the TX+ line (upper trace).
  • Page 9 RS-422/485 side of the adapter. The configuration as shipped from Antona is set for ‘master’. This configuration is for the adapter acting as a controller to multimedia type equipment with an RS-422 SMPTE interface. Figure 1 shows the jumper locations from the component side of the circuit board.

  • Page 10: External Connections To Anc-6023

    DB9 to DB25 pin chart When using the Antona adapters on a DB25 type com port an adapter can be bought or built to translate the DB9 connector to accommodate the signals from a DB25 type connector using the table below.

  • Page 11: Db9 Rs-422 Signals For Master (Multimedia Controller)

    The user can hand-wire a 9-pin cable assembly from the RS-422 piece of equipment to the Antona adapter. The only difference between the master and client version is the jumper positions of JP1 and JP2 within the adapter. The electronics are exactly the same, only the 2 transmit and 2 receive signal lines are exchanged.

  • Page 12: Appendix A - Program Listing

    Appendix A - Program listing The following short BASIC program will allow the designer to quickly verify the operation of the ANC- 6023 video sync input. It is assumed that the adapter is plugged into COM1: (use A=&H2FE for COM2:) with a suitable video input attached to the adapter’s BNC connector input.

  • Page 13: Appendix B -Troubleshooting

    Make sure that your terminal program is turning on RTS and DTR to power the Antona adapter, and that the program is set to control the com port that the adapter is connected to. The adapter operation does not rely on baud rate, parity, stop bits - but the actual application program you are using with the adapter may (see PROGRAM OPERATION).

  • Page 14: Rs422 Equipment

    RS232 signals being generated by the Antona adapter with the plastic cover removed and running with your RS422 device and program. Refer to the schematic at in the ANC-6023 User’s Manual you received with the adapter. It’s easy to put a scope probe onto the tops of the 4 jumpers and verify that RS422 signals are coming and going to the adapter.

  • Page 15: Appendix C -Circuit Board Schematic

    Appendix C -Circuit Board Schematic The following page(s) contain the schematic for the series 6023 adapter. The schematic and card artwork are copyright protected by Antona Corporation and are included only to aid the end user to configure the adapter or for competent technical service personnel to use in maintenance or repair.

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