RabbitCore RCM2000 Series, Руководство по началу работы

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Getting Started 11
2.3.3 Connect Ethernet Network Cable
Programming and development can be done with the RCM2200 without connecting the Ethernet
port to a network. However, if you will be running the sample programs that use the Ethernet capa-
bility or will be doing Ethernet-enabled development, you should connect the RCM2200 module’s
Ethernet port at this time.
There are four options for connecting the RCM2200 to a network for development and
runtime purposes. The first two options permit total freedom of action in selecting net-
work addresses and use of the “network,” as no action can interfere with other users. We
recommend one of these options for initial development.
• No LAN —
The simplest alternative for desktop development. Connect the
RCM2200’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 Eth-
ernet 10Base-T hub and connect both the PC’s network interface card and the
RCM2200’s Ethernet port to it, using standard network cables.
The following options require more care in address selection and testing actions, as con-
flicts with other users, servers and systems can occur:
• LAN —
Connect the RCM2200’s Ethernet port to an existing LAN, preferably one to
which the development PC is already connected. You will need to obtain IP addressing
information from your network administrator.
•
WAN — The RCM2200 is capable of direct connection to the Internet and other Wide
Area Networks, but exceptional care should be used with IP address settings and all
network-related programming and development. We recommend that development and
debugging be done on a local network before connecting a RabbitCore system to the
Internet.
TIP: Checking and debugging the initial setup on a micro-LAN is recommended before
connecting the system to a LAN or WAN.