Agilent-technologies N3970A Uživatelský manuál stáhnout pdf (Strana 21)

■ RS232 INTERFA C E

The connection details of the instrument, and connecting cables are as follows :

Some (out of spec) serial ports need a 10 K resistor in the D connector across wires 1 & 2.

Wire 1 (screen) Wire 2 Wire 3

Instrument Jack Plug Body (Gnd) Ring (Tx) Tip (Rx)

9 Pin D connector for RS232 Pin 5 (Gnd) Pin 2 (Rx) Pin 3 (Tx)

The RS232 interface can be used to access and control the instrument from an external computer. All functions can be accessed

remotely. See next pages for available software.

The baud rate can be set to: 0.3, 0.6, 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 56 Kbaud. The default and printer baud rate is 9.6 Kbaud. To set the

baud rate, on the hidden keypad, select -SHIFT- BAUD RATE, then -/+ to SET the rate, followed by set. At turn on, the default is

restored.

Local / remote modes

The hidden keypad enables the user to lock out the front panel controls, by selecting LOCAL or REMOTE.

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Agilent-technologies N3970A Uživatelský manuál Strana 21