
RS-232 pin out
The following figures show the pin outs of the RS-232 cables used with
HP 54656A. The signals for the RS-232 port on the HP 54656A are listed
below:
Pin Number Signal
1 Data Terminal Ready
2 Transmit
3 Receive
4 Request to Send
5 Clear to Send
6 Data Set Ready
7 Ground
8 Data Carrier Detected
9 Ring
SHELL Protective Ground
Pin out of RS-232 port in HP 54656A looking into DB9 connector
Figure 33
Reference Information
RS-232 pin out
104
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