Keithley 2510 User Manual

6-8 Remote Operations Models 2510 and 2510-AT User’s Manual
RS-232 connections
The RS-232 serial port is connected to the serial port of a computer using a straight-
through RS-232 cable terminated with DB-9 connectors. Do not use a null modem cable.
The serial port uses the transmit (TXD), receive (RXD), and signal ground (GND) lines of
the RS-232 standard. Figure 6-4 shows the rear panel connector for the RS-232 interface,
and Table 6-1 shows the pinout for the connector. (See Figure 6-3 for the rear panel con-
nector location.)
If your computer uses a DB-25 connector for the RS-232 interface, you will need a cable
or adapter with a DB-25 connector on one end and a DB-9 connector on the other, wired
straight through (not null modem).
NOTE To minimize interference caused by electromagnetic radiation, use only shielded
RS-232 cables such as the Keithley Model 7009-5.
Figure 6-4
RS-232 interface connector
Table 6-1
RS-232 connector pinout
Pin number Description
1 Not used
2 TXD, transmit data
3 RXD, receive data
4 Not used
5 GND, signal ground
6 Not used
7 RTS, ready to send
8 CTS, clear to send
9 Not used
NOTE: CTS and RTS are tied together.
9876
54321
Rear Panel Connector
RS-232

Keithley 2510 Specifications

General

Brand	Keithley
Model	2510
Category	Measuring Instruments
Language	English