Measurement Computing Micro488/p - Manual (Page 12)

2-2 09-26-02 Getting Started
2.3 Serial Signal Descriptions
The Micro488/p serial connector is configured as DCE type equipment for
RS-232 communications. This means the Micro488/p always transmits data on
Pin 3 and always receives data on Pin 2.
Note that the Micro488/p is equipped with a standard DB-25S connector and
requires a standard DB-25P mating connector.
Refer to the following figure and table to understand the relationship of the
Micro488/p connector’s pins and the associated RS-232 signals.
Section 2.4 of
this document includes wiring information for making your own cables.
Micro488p Serial Connector Pinout
The following table idetifies the above connector pins in regard to
signal name and I/O type.