User guide

Chapter 7 Troubleshooting 35
connections.
If your device server is configured correctly but you are
unable to communicate with your serial device connected to
the device server port, check the cabling.
Cabling
Make sure you have the proper cabling from the Digi One IA
(or SP) device server’s serial port to the connecting device.
The Digi One is a DTE device.
The DB9 pinout can be found on the Digi One IA device label
or on the Quick Start Guide for the Digi One SP. If you are
using the Screw Terminal Block instead of the DB9 serial
port, count pin # 1 as the one farthest from the DB9 serial
port. Pinout information is also available in this manual and
online at http://support.digi.com.
If your cabling is correct, try resetting the device in Chapter 7
Administration, page 46 or 47.
Software - RealPort
Install RealPort according to the procedure in Chapter 3
pages 19-21. If the IP address is set correctly but you are
having trouble with RealPort, verify TCP port 771 is open for
the RealPort driver to get to the Digi One device server.