36 IP920 Operating Manual: Chapter 4 Configuration
4.6.2 Upgrade Password
Upgrade password protects IP920 units from being upgraded (package
upgrade) by unauthorized personel. Default password should be avoided
when system is deployed to make the units more secure.
Figure 16 Change Password for Upgrade
4.6.3 Wireless WEP Encryption
Network traffic over air can be encrypted by Wired Equivalent Privacy
(WEP) encryption algorithm.
WEP encryption is disabled by default to keep overhead minimum, it
should be enabled if over air encryption is required. When enabled, more
protocol overhead is added on the packets being transmitted; therefore a
minor throughput decrease shall be expected.