Titan Electronics Inc NETCOM423 Manuel D’Utilisation

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823RM WLAN, 1623RM WLAN  
Page 
124 
 
12. G
LOSSARY OF 
T
ERMS
 
AES: 
Advanced Encryption Standard 
 
The successor of the now insecure DES. AES provides 
strong and modern encryption, with long keys up to 
256 Bit (DES used 56 Bit). 
APIPA: 
Automatic Private IP-Addressing   
A scheme to self-assign an IP-Address to a 
network device. The device selects an address of the 
LINKLOCAL range 169.254.0.1 to 169.254.255.254 by 
random. If this address is unused, it assigns it to itself. 
Otherwise the next address is tested. It became 
widespread with Windows 98. 
 
The netmask is 255.255.0.0, the addresses are not routed 
on the Internet. 
ART: 
Automatic Receive Transmit control  
Special control for RS485 modes. In RS485 the 
line driver for transmitting must be disabled (tri-stated) 
when the device does not send data. In a 2 wire 
configuration this is known as data direction change, 
with 4 wire it is called line contention. 
DHCP: 
Dynamic Host Configuration Protocol 
 
A service used to retrieve an IP-configuration from a 
database. 
FTP: 
File Transfer Protocol 
 
A common protocol to access a file server. 
HTTP: HyperText 
Transfer 
Protocol 
 
The protocol used by web browsers to access a web 
server.
 
Internet: 
The net connecting networks  
A set of protocols to exchange data between different 
networks. These information’s are carried via a global 
network of fibres and satellite links. 
IP: Internet 
Protocol 
 
The basic definitions for data packages. These Internet 
frames are stored and transported embedded in data 
frames of the local network.