M e r i d i a n I I U s e r M a n u a l
10
C H A P T E R T W O
11
M e r i d i a n I I U s e r M a n u a l
B A S I C I N S T A L L A T I O N
press the RIGHT arrow key until the “Network4” or “Network6” selection is highlighted. Press EN-
TER again. Now you can choose which port to set up - either
eth0
or
eth1
. You will then be able
to start modifying the IP address, gateway and netmask by pressing the EDIT key. The sequence of
displays will guide you through the setup process. Press the HELP key at any time to view context-
sensitive help information. When you are finished choose the REBOOT menu item and initiate a
system reboot.
Configuring Ethernet with the Serial Port
To configure your Ethernet interfaces with the serial port, after logging in as the
root
user, you must
run a simple script called
netconfig
. This script will prompt you for the needed information and
perform some syntax checking on your inputs. Then it will create or modify the appropriate files
needed to configure the Ethernet interface. The following sections will guide you in setting up com-
munications with the Meridian II using its RS-232 serial I/O port.
Connect the RS-232 Serial I/O Port
To test serial communications with the Meridian II you will need either a VT100 compatible terminal
or a terminal emulation program running on your computer. We will refer to either of these as “termi-
nal” for the remainder of this instruction.
1. Disconnect power from the Meridian II.
2. Connect one end of the DB9F-to-DB9F null modem adapter cable to the serial I/O jack on the
Meridian II.
3. Connect the other end of the DB9F-to-DB9F null modem adapter cable to the terminal. If the
serial I/O port on your terminal does not have a DB9M connector, you may need to use an adapter.
Refer to
Appendix K - Specifications
for details on the signal wiring.
If you are using a computer
for your terminal, remember which port you are using because you will need to
know that in order to
set up your terminal software.
NOTE
You must use an RS-232 null-modem cable or adapter if you are connecting the Meridian II to another
computer. The cable included in the shipping kit is a null-modem cable.
If your computer does not have a serial port, you can use a USB port with a USB-RS232 converter similar
to Gearmo GM-FTDI-8. First, connect the USB converter to your computer, then connect the converter to
the null-modem cable. Finally, connect the null-modem cable to the Meridian II.
Test the Serial Port
You must configure your terminal to use the serial I/O port you used in
Connect the RS-232 Serial
I/O Port
above. You must also configure your terminal as shown below:
Summary of Contents for Meridian II
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