UltraPort Serial Adaptors User Guide
Host card back panel connectors and pinouts
Page 104
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
1
DCD
CTS-
NC
2
RXD
RXD+
RXD+
3
TXD
TXD-
TXD-/RXD-
4
DTR
TXD+
TXD+/RXD+
5
S-GND
S-GND
S-GND
6
DSR
RXD-
RXD-
7
RTS
RTS-
NC
8
CTS
CTS+
NC
9
RI
RTS+
NC
Shell
C-GND
C-GND
C-GND