About Wits Port Pin-Outs; Rs232 Port Pin-Outs; Comm022 Rs232 Pin-Outs; Figure 17: Comm022 Rs232 Pin-Outs - Pason WITS User Manual

5

About WITS Port Pin-Outs

This section contains pin-outs to guide you as you design a product interface that is
compatible with the Pason system. Consult the information below if you are connecting a
third-party device that uses RS232 or RS422 communications.
5.1

RS232 Port Pin-Outs

Pason provides two communications boxes for use by third parties interested in setting
up WITS communications between an RS232 device and the EDR system: COMM022
and COMM018. Both of these comm boxes convert RS232 to RS422, which the EDR
can accept.

COMM022 RS232 Pin-Outs

COMM022 provides a DB9 connector on the third-party side. The table below lists pins
and descriptions for the COMM022 pin-outs:
DB9 Pin
2
3
5
all other pins
3
5

Figure 17: COMM022 RS232 pin-outs

Revised May 1, 2019
Description
TX
RX
GND
unused
Revision 25 of DOCU225, © Copyright
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