Moxa Tech Note
Fixed TTY Driver for NPort
Copyright © 2008 Moxa Inc.
Page 2 of 4
What is the Fixed TTY Driver for NPort?
After installing the fixed TTY driver on your UNIX machine, a UNIX TTY device can
be redirected to an NPort serial port. In other words, a device attached to the
NPort can be treated as a local TTY device on the UNIX PC.
PC with TTY
(termio) program
Ethernet
NPort
Serial
Device
Installing the Fixed TTY Driver for NPort
Before performing the following steps, restore the NPort's default settings by
holding down the reset button for 10 seconds.
1.
Make sure that DIP switch 1 is set to OFF (applies to DE-211 and DE-311).
2.
Modify the DIP switch settings for serial communication as required for your
device.
3.
Turn on the NPort. The Ready LED should turn green.
4.
Make sure that the NPort and the host PC are properly connected to the
network.
5.
Adjust the NPort's IP settings so that it is on the same subnet as your PC.
You may also need to modify the host PC's IP configuration. Ping from the
PC to the NPort to verify that they are on the same subnet.
Note: The IP addresses of the NPort and the PC must be on the same subnet.
If one IP address is modified, you may need to modify the other IP address
as well.
6.
Configure the NPort for Real COM Mode and then configure the serial
interface and communication parameters. Refer to instructions in the
NPort's Quick Installation Guide or User's Manual for details.
7.
Log into UNIX and create a directory for the Moxa fixed TTY driver. For
example, execute the following command to create the directory
/user/etc:
# mkdir /usr/etc
8.
Use the following commands to copy moxattyd.tar to the new directory:
# cp moxattyd.tar /usr
# cd /usr/etc
