UltraPort Serial Adaptors User Guide
Host card back panel connectors and pinouts Page 105
Chapter 3 Cabling information
DB9 back panel connectors and pinout
The following diagram shows the UltraPort2/UltraPort2 SI, UltraPort 1/UltraPort1 SI, the
UltraPort1 SI Low Profile and UltraPort1 Expressback panels respectively.
DB9M pin EIA-232 EIA-422 EIA-485
1DCD CTS- NC
2RXD RXD+ RXD+
3TXD TXD- TXD-/RXD-
4DTR TXD+ TXD+/RXD+
5S-GND S-GND S-GND
6DSR RXD- RXD-
7RTS RTS- NC
8CTS CTS+ NC
9RI RTS+ NC
Shell C-GND C-GND C-GND