Addtron Technology Electronic Device WebNet - Manual (Page 12)

3 Installation
3.1 Connecting to the Network
Besides the WebNet Start Kit, you need a computer with TCP/IP and a web browser
installed on it. The computer must be equipped with a network adapter. You can either
connect the WebNet Start Kit directly to the network adapter on the computer, or you can
connect it to a network hub or switch on the local area network.
3.1.1 Connecting to a hub
When connecting to a hub to which the computer is attached, the “straight” network cable
supplied with the Start Kit is used. Make sure that the hub is capable of running 10Mbps.
Old hubs only run 10Mbps and many new dual-speed hubs automatically detects the speed
and run either 10 or 100Mbps (or is able to switch packets between devices of different
speeds), but some new hubs only run 100Mbps. The only solution in the latter case is to
replace the hub.
Also make sure that the WebNet and the computer are on the same segment of the LAN,
that is, no routers or bridges are in between the two devices. Hubs or switching hubs are
OK.
3.1.2 Connecting to a network switch
Connecting the WebNet to a network switch, before an IP-address is configured, is not
recommended. Some network switches might filter out packets addressed to “unknown”
MAC addresses. Once the WebNet is properly configured, there are no problems in con-
necting it to a network switch. Use the same network cable as when connecting to a hub.
3.1.3 Connecting directly to the computer
To connect the WebNet directly to the computer, a “crossed” network cable is required (the
one supplied with the Start Kit is “straight” and can not be used for this purpose). The
network adapter in the computer must be capable of running 10Mbps.
In case of problems, configure the network adapter to 10Mbit link speed or “auto-sense” –
100Mbit will not work. Notice that the link speed cannot be set on all types of network
adapters.
For Windows computers the setting would appear (if applicable) in
Control Panel -> Network -> (Adapter name) -> Properties
-> Advanced -> Link speed
The crossed network cable is connected to the network adapter in the computer and to the
WebNet.
12 WebNet User’s Guide