Tektronix Camcorder 1780-R Manual do Utilizador descarregar pdf (Página 70)

Operating Instructions

3–18

1780R-Series Operator’s Manual

Serial Communications Interface

Serial Interface Connector

The rear-panel SERIAL interface connector is a 9-pin, sub-minia-

ture, D-type connector. It is used as an RS422A or RS232D interface

to the 1780R-Series microcontroller. Drivers for both interfaces are

resident. RS422A is a balanced voltage digital interface, and

RS232D is a serial binary data interchange. Figure 3–9 shows the

rear-panel SERIAL connector pin assignments.

Figure 3–9: Serial Interface Connector Pin Assignments

Building a Wiring Converter

Wiring converters can be built to connect the 1780R-Series 9-pin

SERIAL port with another 9-pin connector or with a 25-pin

connector. The 25-pin converter uses a 9-pin male connector

(Tektronix P/N 131-1007-00) and a 25-pin female connector

(Tektronix P/N 131-0971-00), as illustrated in Figure 3–10.

Operating Instructions

3–18

1780R-Series Operator’s Manual

Serial Communications Interface

Serial Interface Connector

The rear-panel SERIAL interface connector is a 9-pin, sub-minia-

ture, D-type connector. It is used as an RS422A or RS232D interface

to the 1780R-Series microcontroller. Drivers for both interfaces are

resident. RS422A is a balanced voltage digital interface, and

RS232D is a serial binary data interchange. Figure 3–9 shows the

rear-panel SERIAL connector pin assignments.

Figure 3–9: Serial Interface Connector Pin Assignments

Building a Wiring Converter

Wiring converters can be built to connect the 1780R-Series 9-pin

SERIAL port with another 9-pin connector or with a 25-pin

connector. The 25-pin converter uses a 9-pin male connector

(Tektronix P/N 131-1007-00) and a 25-pin female connector

(Tektronix P/N 131-0971-00), as illustrated in Figure 3–10.

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