User`s manual

User’s Manual 93
APPENDIX C. USING THE TCP/IP
FEATURES
C.1 TCP/IP Connections
Programming and development can be done with the RCM3400 modules without connect-
ing the Ethernet port on the RCM3400 Prototyping Board to a network. However, if you
will be running the sample programs that use the Ethernet capability or will be doing
Ethernet-enabled development, you should connect the RCM3400 Prototyping Board’s
Ethernet port at this time.
Before proceeding you will need to have the following items.
• If you don’t have Ethernet access, you will need at least a 10Base-T Ethernet card
(available from your favorite computer supplier) installed in a PC.
• Two RJ-45 straight through Ethernet cables and a hub, or an RJ-45 crossover Ethernet
cable.
The Ethernet cables and a 10Base-T Ethernet hub are available from Rabbit Semiconduc-
tor in a TCP/IP tool kit. More information is available at http://www.digi.com/support.
1. Connect the AC adapter and the programming cable as shown in Chapter 2, “Getting
Started.”
2. Ethernet Connections
There are four options for connecting the RCM3400 Prototyping Board to a network
for development and runtime purposes. The first two options permit total freedom of
action in selecting network addresses and use of the “network,” as no action can inter-
fere with other users. We recommend one of these options for initial development.
•
No LAN — The simplest alternative for desktop development. Connect the RCM3400
Prototyping Board’s Ethernet port directly to the PC’s network interface card using an
RJ-45 crossover cable. A crossover cable is a special cable that flips some connections
between the two connectors and permits direct connection of two client systems. A
standard RJ-45 network cable will not work for this purpose.
•
Micro-LAN — Another simple alternative for desktop development. Use a small
Ethernet 10Base-T hub and connect both the PC’s network interface card and the
RCM3400 Prototyping Board’s Ethernet port to it using standard network cables.