Parker PowerStation PA2 Series - Settings and Pinouts for COM1; Settings and Pinouts for COM2

Chapter 3: Starting Your PowerStation PowerStation Connectors
PA2 PowerStation User Guide 3-2
RS-422 and RS-485 communications offer greater noise immunity than
RS-232. These standards increase the maximum cable length to 4,000 feet
(1,200 meters).
RS-422 communications are full-duplex (send and receive simultaneously),
while RS-485 communications are half-duplex (send or receive).
For either configuration, be careful not to connect any wires to unused
connector pins. Information on the specific connection required for the
Interact drivers you will use is located in the Help file associated with the
driver.
Settings and Pinouts for COM1
If you need to make a cable for communicating with COM1, Table 3-1
shows the pinouts and signal information for this port.
Table 3-1: COM1 Pinouts
Settings and Pinouts for COM2
If you need to make a cable for communicating with COM2, Table 3-2,
shows the pinouts and signal information for this port.
Table 3-2: COM2 Pinouts
Pin# Signal
1 DCD, data carrier detect
2RXD, received data
3 TXD, transmitted data
4 DTR, data terminal ready
5 Signal ground
6DSR
7 RTS, request to send
8 CTS, clear to send
9RI
Pin#
RS-232
Communication
RS-422
Communication
RS-485
Communication
1 N/C TXD-, transmitted
data -
DATA-
2 RXD, received data TXD+, transmitted
data +
DATA+
3 TXD, transmitted
data
RXD+, received data
+
4N/C RXD-, received data
-