Extron Electronics DVS 510 Series User Guide - Manual (Page 123)

DVS 510 Series • Reference Information 117
The following is an example of an invalid Class C addressing scheme:
Device IP Address
SPPCP Control Software Computer 208.132.180.41
DVS 510 192.157.180.42
NOTE: The above addresses are invalid because the network identifier for each address
is not the same even though each IP address is unique.
You can perform a test from your computer to check that a device at a particular address is
responding correctly or to determine its address (see “
Pinging for the IP Address ”).
Subnet Mask
The subnet mask is another 32-bit binary number that is used to “mask” certain bits of the
IP address. This provides a method of extending the number of network options for a given
IP address. It works by allowing part of the host identifier to be used as a subnet identifier.
It is important that you set the correct value for the subnet mask. The basic values depend
on the class of IP address being used.
Class Name Subnet Mask
Class A 255.0.0.0
Class B 255.255.0.0
Class C 255.255.255.0
(See “ Subnetting, a Primer ” on page 120 for more information.)
Pinging for the IP Address
To access the DVS 510 via the Ethernet port, you need the scaler IP address. If the address
has been changed to an address comprised of words and characters, you can determine the
actual numeric IP address using the Ping utility. If the address has not been changed, the
factory-specified default is 192.168.254.254.
Ping can also be used to test the Ethernet link to the DVS 510 Series.
Pinging to determine the Extron IP address
The Microsoft Ping utility is accessed via the command prompt. Ping tests the Ethernet
interface between the computer and the DVS 510 scaler. Ping can also be used to determine
the actual numeric IP address from an alias and to determine the web address.
Ping the scaler as follows:
1. From the Windows Start menu, select Run... . The Run window opens.
2. In the Open text field, enter command .
Figure 55. Run Window
3. Click OK . A command window opens.