#9 Viper_SC_Manual_001-5008-000_Rev12e.docx | Page 16
The subnet mask of the RF IP addresses has been changed to ensure that the RF IP network does not overlap any of the
Ethernet networks. In this scenario, the RF IP addresses must be manually programmed to ensure that every Viper has an
RF IP address in the network and that no RF IP address is used twice.
Ethernet Subnet Mask for all units: 255.255.255.240
RF Subnet Mask for all units: 255.255.0.0
Viper #1 Eth IP Address: 10.200.1.1 / 28 RF IP Address: 10.0.0.1 / 16
Viper #2 Eth IP Address: 10.200.1.17 / 28 RF IP Address: 10.0.0.2 / 16
Viper #3 Eth IP Address: 10.200.1.33 / 28 RF IP Address: 10.0.0.3 / 16
Viper #4 Eth IP Address: 10.200.1.49 / 28 RF IP Address: 10.0.0.4 / 16
…
Viper #177 Eth IP Address: 10.200.12.1 / 28 RF IP Address: 10.0.0.177 / 16
Viper #178 Eth IP Address: 10.200.12.17 / 28 RF IP Address: 10.0.0.178 / 16
Figure 9 – Router Mode Example 2
2.2.3 MULTISPEED NETWORKING
When using Viper SC with a Viper SC 19” rack mount base station, the user can configure the network for multispeed
operation. With the Base enabled as a ‘rate-controller’, the remote device becomes a ‘rate follower’. The rate-controller
can be configured to talk at different over-the-air data rates for each remote Viper. This allows the user to uniquely control
the data rate for each RF link in the system from the Base Station web pages. The user can program RF links with strong
signal strength to communicate at fast data rates and RF links with low signal strength can be programmed to communicate
at more robust, slower data rates. Even if data rates vary from Viper to Viper, every Viper in the network must be
programmed with the same bandwidth.
Refer to Section 4.3.1 for multispeed configuration options.
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