Proface PS4800 - 19 Panel PC" - Manual (Page 35)

Physical Overview
35
Serial Interfaces
COM 1 and COM 2: These interfaces are used to connect an RS-232C (serial) cable
with a D-Sub 9 pin connector.
Serial interface COM1 and COM2
Connector D-Sub 9 pin plug
Type RS-232C, modem-
capable, not electrically
isolated
UART 16650-compatible, 16-
byte FIFO
Transfer rate Max. 115 kBit/s
Cable length Max. 15 meters (49.21
feet)
Interfit Bracket #4-40 (UNC)
Pin Assignment
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
1 5
6 9