User's Manual

DB-9 Connector
14  Digi Connect SP Hardware Reference
DB-9 Connector
The figure and table provide information on DB-9 pin orientation and pin assignments.
DB-9 Pin Orientation
*If switch 4 is up, termination.
If down, no termination.
Up/On
Down/Off
EIA-232
EIA-422/485
Full-Duplex
EIA-485
Half-Duplex
*
*
0
0000006
Pin 1
Pin 5
Pin 6 Pin 9