2 serial ports, 3 parallel port, Figure 2-10: serial ports – IEI Integration PPC-5xxx-9455 v1.10 User Manual
Page 49: Figure 2-11: parallel port

PPC-5xxx-9455 Panel PC
Page 31
2.10.2 Serial Ports
Serial ports provide communications to external devices. Four of the external serial ports
provide short-range communications, while one provides for longer range communication.
Figure 2-10: Serial Ports
Some features of the serial ports include:
RS-232 transmission protocol for easy connection to devices with a standard
RS-232 interface
RS-422 and RS-485 transmission capabilities for longer distance
connections.
2.10.3 Parallel Port
The parallel port can be programmed for machine control, or used in the standard setup
for parallel port printers and other devices that use a standard parallel port.
Figure 2-11: Parallel Port
Some of the features of the parallel port include:
Programmable pin functions for customized applications