A 25- to 9-pin adapter is provided with the cable – Rockwell Automation 2707-M232P3_M485P3 DTAM Micro Operator Interface Module User Manual
Page 93
Appendix B
DTAM Micro Cable Diagrams
B–3
Catalog No. 2707-NC5
Use the RS-485 Upload/Download Cable to connect the RS-485 port of the
DTAM Micro (Catalog No. 2707-M485P3) to a personal computer for
transferring applications. The cable contains the circuitry to convert RS-422
signals to RS-232 signals. The DTAM Micro RS-485 port is compatible with
the RS-422 output of the converter cable.
Personal Computer
2
3
7
20
1
2
3
4
5
8
9
TXD+
RXD -
RXD+
TXD -
Communications Port
Signal Ground
Shield
RXD
Signal Ground
DTR
TXD
RS-422
{ RS-232
25-Pin Female Connector
DTAM Micro RS-485
Signal Ground
9-Pin Male D Connector
A 25- to 9-pin adapter is provided with the cable.
25-Pin Male Connector
TXD
RXD
Signal Ground
TXD
RXD
2
3
7
20
3
2
5
4
9-Pin Female Connector
DTR
Signal Ground
DTR
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