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– 8 – ACRCOMM and ACREXPAXIS User’s Guide
Communications—P5 Connector
There is one 34 pin header provided on the ACRCOMM module for the 2
serial and 1 parallel communications ports. The two serial ports, COM1 and
COM2, can be individually configured as RS-232 or RS-422 interfaces.
Configuration of the COM ports is software selectable by the user.
The following diagram shows the connections for the 3 communications
ports. For jumper locations, see Figure 2 on page 5.
Note: P5 is a 34-pin shrouded male header.
Signal Pin Signal Pin
RXD1 1 TXD1 2
GND 3 MUX1 4
TXD1A 5 TXD1B 6
RXD1A 7 RXD1B 8
RXD2 9 TXD2 10
GND 11 MUX2 12
TXD2A 13 TXD2B 14
RXD2A 15 RXD2B 16
STB 17 AFD 18
ERR 19 INIT 20
SLIN 21 GND 22
PD0 23 PD1 24
PD2 25 PD3 26
PD4 27 PD5 28
PD6 29 PD7 30
ACK 31 BUSY 32
PE 33 SLCT 34
Table 6 ACRCOMM P5 Communications Connector