Fluke 8845A, User Manual

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C-
1
Appendix C
RS-232 Port Connections
Introduction
Table C-1 lists the pins and related signals available through the RS-232 port.
Table C-1. RS-232 Pin to Signal List
Pin Name Usage
1 DCD Not used
2 RX Receive data
3 TX Transmit data
4 DTR Not used
5 GND Signal ground
6 DSR Not used
7 RTS Request to send
8 CTS Clear to send
9 RI Not used
The Meter’s RS-232 control lines can be rewired to an alternate pairing instead of the
RTS/CTS control pair. This alteration should be done by a trained technician at Fluke
service center. Opening the cover of the Meter to make this alteration may void the
Meter’s warranty.