101501-565 Rev C
Page 8 of 58
4.2 ETHERNET
The ST contains an embedded diagnostic web server that can be
accessed through any standard web browser by browsing to the ST’s IP
address. For example:
http://192.168.1.4
The Ethernet interface communicates using the following protocols:
TCP/IP
HTTP
TFTP
FTP
4.2.1 Direct Connection between the ST and a Computer
A direct Ethernet connection between the ST and the computer
requires an RJ45 crossover cable. The end connectors will look
identical to a “normal” RJ45 connector but the colors of some of the
wires in the connectors will be “reversed”. Hold up the two ends of
the RJ45 cable and look at the color of the wires from left to right.
They should differ on the two connectors. Please see figure 4 on
rage 7 for reference.
When direct connecting the ST to a computer using a crossover
cable over Ethernet they are essentially participating in a private
network. As such you need to pick two valid IP addresses, one for
each device.
The table below illustrates that not all IP addresses are actually
valid IP addresses. For example, IP addresses beginning with 127
are not valid.
4.2.2.1
Configuring the Computer for Direct Ethernet
Connection
As mentioned above both the IP Address and Subnet Mask need to
be configured. In our environment computers normally are assigned
IP addresses dynamically, using DHCP. We need to change this
and assign the IP Address statically to the one we have selected.
Class
Address Range
A
1.0.0.0-126.255.255.255
B
128.0.0.0-191.255.255.255
C
192.0.0.0-223.255.255.255
