Chapter 3: Installation

3.2.4 Channel switching by external control

The OPTIONS port allows external control of the current channel by commands sent either via RS-232 serial input or by switching one of the four channel select input lines. For more details about the necessary RS-232 serial cable, see Appendix C.

3.2.4.1 OPTIONS port pinout

The OPTIONS port can accept either 8p8c or 10p10c connectors, as required. See Figure 3-13.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8p8c

10p10c

Signal

1

 

 

 

 

10

 

1

Channel select input 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

5VDC power output (100mA max)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

3

GND reference for all signals

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

4

RS232 (RXD) data receive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

5

RS232 auxiliary data transmit (reserved)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

6

RS232 auxiliary data receive (reserved)

 

OPTIONS

 

6

7

RS232 (TXD) data transmit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

8

Channel select input 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

9

Channel select input 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

Channel select input 4

Figure 3-13. Signal and power pin-outs on the OPTIONS port

To connect a computer or device for remote control

1 Insert the 8p8c or 10p10c connector of the cable to the OPTIONS port on the rear panel of the unit. See Figure 3-14.

USER

CONSOLE

OPTIONS

4

Figure 3-14. Link cable to the OPTIONS port on the rear panel.

2 Connect the other end of the cable to a vacant serial port on the computer or to the output of the switching device.

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Black Box Black Box ServSwitch Wizard VGA (USB), KV3304A manual Channel switching by external control, Options port pinout

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