NC-485X Network Converter
Application Note
Page 7 of 13
P/N: 01967-001 Rev. C
3.2.1.2
Slave Mode Configuration
There are a few critical parameters to set via Telnet, all other parameters should be left at their default
values.
There are two ways to open Telnet, through the Lantronix DeviceInstaller window or by opening a
DOS box.
•
From the DeviceInstaller page, locate and double-click on the IP address of the LAN-520X.
Select the Telnet tab and then click on the
button.
•
Open a DOS box and open a Telnet connection to Port 9999 on the LAN-520X.
At the DOS prompt type the following to make the Port 9999 Telnet connection to the LAN-
520X:
- c:\>telnet <LAN-520 IP address> 9999 <Enter>
For example:
- c:\>telnet 192.168.100.250 9999 <Enter>
1. As soon as the Telnet sign-on screen appears, press <Enter> to go into the LAN-520X Setup
mode. There is a two to three second window in which you must press <Enter> before the Telnet
session automatically closes. If the Telnet session closes before you enter Setup mode (if nothing
happens when you press <Enter>), simply click the
box again to establish a connection to
Telnet.
2. Once Telnet connects with the LAN-520X all current configuration information is displayed and
the cursor is placed at the “Your choice” field (see Figure 4 on page 5).
3. Press 2 <Enter> to enter the Channel 2 Configuration values. The second configuration parameter
is displayed.
4. If a configuration value needs to be changed, type the new value and the original value is
overwritten. Every time <Enter> is pressed, the displayed configuration value is accepted and the
next parameter is displayed.
5. Press <Enter> until the I/F Mode parameter is displayed. This value must be
4F
for proper
communication between LAN-520Xs over RS-485. If this value is not
4F
, type
4F
to overwrite
the original value.
6. Press <Enter> until the Connect Mode parameter is displayed. This value must be
0C
for slave
units. If this value is not set correctly, overwrite it with the correct value stated above.
7. Press <Enter> until the Remote IP Address parameter is displayed. This value must be set to the
IP address of the LAN-520X Master. Setting the remote IP address will designate this unit as a
slave. The slave will only respond to messages from the designated Master IP address.
