Moxa Technologies NPort 5100 Series User manual

Moxa Tech Note

Fixed TTY Driver for NPort

About Moxa

Moxa manufactures one of the world’s leading brands of device networking solutions. Products include serial

boards, USB-to-serial hubs, media converters, device servers, embedded computers, Ethernet I/O products,

terminal servers, Modbus gateways, industrial switches, and Ethernet-to-fiber converters. Our products are key

components of many networking applications, including industrial automation, manufacturing, POS, and medical

treatment facilities.

How to Contact Moxa

Tel: 1-714-528-6777

Fax: 1-714-528-6778 Web: www.moxa.com

Email: info@moxa.com

This document was produced by the Moxa Technical Writing Center (TWC). Please send your comments or

suggestions about this or other Moxa documents to twc@moxa.com.

Fixed TTY Driver for NPort

Moxa Technical Support Team

[email protected]

This Tech Note applies to the following NPort device server models:

•NPort DE-211

•NPort DE-311

•NPort DE-311M

•NPort 5100 series

•NPort 5200 series

•NPort 5400 series

•NPort 5600 series

•NPort IA5150

•NPort IA5250

•NPort 6000 series

•NPort W2150

•NPort W2150 Plus

•NPort W2250

•NPort W2250 Plus

All of these products support the following UNIX operating systems:

•SCO UNIX

•SCO OpenServer 5

•SCO OpenServer 6

•UnixWare 7

•Solaris 10

•QNX4.25

•QNX6

•FreeBSD 5.x

•FreeBSD 6

Moxa Tech Note

Fixed TTY Driver for NPort

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

Moxa Tech Note

Fixed TTY Driver for NPort

9. Use the following commands to extract the source files:

# tar xvf moxattyd.tar

# cd /usr/etc/moxattyd

10. Follow your operating system's instructions for compiling and linking the

source files:

QNX4 # make qnx4

QNX6 # make qnx6

SCO OpenServer 6 # make sco6

SCO OpenServer 5 # make sco

Solaris # make sun

FreeBSD # make freebsd

UnixWare 7 # make svr5

11. Verify that the configuration is correct by using a text editor (vi, for example)

to open the text file moxattyd.cf, which is located in the directory that

contains the moxattyd deamon. The IP:port mapping for TTY devices will

appear as shown below:

ttyp11 192.168.127.254 950

12. Use the following command to start the moxattyd daemon:

# /usr/etc/moxattyd/moxattyd –t 1

The optional "-t" parameter is used to indicate the connection timeout value,

measured in minutes.

13. To start the moxattyd daemon automatically on system bootup, add an

entry to the appropriate system file. For SCO OpenServer 5 and 6, Solaris,

and UnixWare 7, add the following entry to the file /etc/inittab:

ts:234:respawn:/usr/etc/moxattyd/moxattyd -t 1

For QNX4, QNX6, and FreeBSD, add an entry to the appropriate system file

as follows:

OS File Add this entry

QNX4 /etc/Config/sysinit.1

QNX6 /etc/rc.d/rc.local

FreeBSD /etc/rc.local /usr/etc/moxattyd/moxattyd –t 1

Moxa Tech Note

Fixed TTY Driver for NPort

Testing Fixed TTY Ports

1. After installing the Fixed TTY driver as described above, enter the following

command to verify that a TTY port is available:

# sty –a < /dev/ttyp1

2. If the system responds with some serial parameter(s), the TTY port is

available and can be accessed by other programs.

Cable Wiring

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