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7-1. Introduction
This section describes how to set up the RS-232 interface for remote control using a
protocol similar to IEEE-488, and to print or transmit data from the 5790A. Once you set
up the interface for remote control, refer to Section 5 for full details of remote operation.
This section provides all details on printing or transmitting data.
The standard equipment serial interface is designed in accordance with EIA (Electronic
Industries Association) standard EIA-232-D. Through its serial interface, the 5790A can
be remotely controlled, and it can transmit its internal calibration constant values and
other information to a printer, video-display terminal, or host computer.
7-2. Serial Interface Specifications
The serial interface is configured as DTE (Data Terminal Equipment). A null-modem
cable with two female 25-pin subminiature D connectors must be used to connect the
5790A to other DTE (Data Terminal Equipment) such as printers, video-display
terminals, or computers. Recommended cables are Fluke accessories Y1702 or Y1703.
The pinout for the 5790A serial interface connector is shown in Figure 7-1. The choices
available and the defaults for all programmable interface parameters are shown in Table
7-1.
1
14
PIN
1
2
3
4
5
7
13
REAR PANEL VIEW
25
20
Figure 7-1. RS-232 Connector Pinout
Using the RS-232 Interface
FUNCTION
NAME
GND
CHASSIS GROUND
XMT
TRANSMITTED DATA
REC
RECEIVED DATA
RTS
REQUEST TO SEND
CTS
CLEAR TO SEND
RET
SIGNAL (LOGIC) GROUND
DTR
DATA TERMINAL READY
7
Introduction
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7-3
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