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PR-23 instrucon manual

If you are using Windows (or Mac OS X 10.3 or newer or any recent Linux distrib-

ution) and the computer has the default network settings, change the DTR IP ad-

dress to 169.254.x.y, where x=1–254 and y=1–254, for example 169.254.100.100 or

169.254.123.1. This way the DTR address will be suitably paired with the address

your computer automatically generates for itself.

If in doubt, you can get your Windows computer’s network settings by opening the

command window (command prompt) and by typing the command ipconfig at the

command prompt (press Enter to give the command), see igure 12.7 (in Mac OS X

and Linux the same command is called ifconfig). The result will give you your com-

puter’s IP address, so you can change the DTR to match; the connection should always

work if you match the irst three groups of numbers and just change the last number.

Figure 12.7 Typical IP conguraon for a stand-alone laptop

when connected to a DTR; laptop wireless (WLAN) is turned o

Note: You may have to connect the cross-over cable and power on the DTR before

your computer generates an IP address for the ethernet connection (computer reboot

may also be required). Note also that the connection will not work if the computer

and the DTR have exactly the same IP address.

Note: Please make sure that your WLAN (Wireless network connection) is not active

when you connect to the DTR. If the WLAN is active, the computer’s Ethernet connec-

tion may not function as expected.

When you have set the DTR (and/or the computer) according to instructions above,

you can proceed to test the connection as instructed below in Section 12.3.

12.3 Tesng the Ethernet connecon

On the Ethernet connector inside the DTR there are two diagnostic LEDs. The green

LED indicates that the physical connection is working, i.e. that both ends of the

Ethernet cable are plugged in, the device in each end is powered and the cable is of

correct type. The orange LED indicates trafic in the cable, i.e. that DTR receives

data.

The IP address can be tested with a ping command after the physical Ethernet connec-

tion has been set up and the DTR is powered. In Windows systems ping is available by

using the Command Prompt (usually found in the Accessories). The usage of ping is

K-Patents PR-23 User Manual

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