Fluke 8845A FE 8845A & 8846A Users Manual - Page 89

C. RS-232 Port Connections, Appendix C

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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. C-1

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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.