User Manual Part 2
ESR9855G Wireless N Gaming Router 
 114 
Application layer 
7th Layer of the OSI model. Provides services to applications to ensure that they can communicate properly with other applications on a 
network. 
ASCII 
American Standard Code for Information Interchange. This system of characters is most commonly used for text files 
Attenuation 
The loss in strength of digital and analog signals. The loss is greater when the signal is being transmitted over long distances. 
Authentication 
To provide credentials, like a Password, in order to verify that the person or device is really who they are claiming to be 
Automatic Private IP Addressing 
APIPA. An IP address that that a Windows computer will assign itself when it is configured to obtain an IP address automatically but no 
DHCP server is available on the network 
B 
Backward Compatible 
The ability for new devices to communicate and interact with older legacy devices to guarantee interoperability 
Bandwidth 
The maximum amount of bytes or bits per second that can be transmitted to and from a network device 
Basic Input/Output System 
BIOS. A program that the processor of a computer uses to startup the system once it is turned on 
Baud 
Data transmission speed 
Beacon 
A data frame by which one of the stations in a Wi-Fi network periodically broadcasts network control data to other wireless stations. 
Bit rate 
The amount of bits that pass in given amount of time 
Bit/sec 
Bits per second 
BOOTP 
Bootstrap Protocol. Allows for computers to be booted up and given an IP address with no user intervention 










