26 2.4 Inch TFT POE Terminal User Manual
QoS:
Quality of Service, a kind of network secure mechanism, a technology of solving network delay and
congestion.
Fig 2.31
IGMP:
It is a multi-cast protocol of internet family, helping IP Host report their membership to the
adjacent routers.
Fig 2.32
Fig 2.33
DDNS:
The user’s dynamic IP address is mapped to a fixed domain name resolution service.
When connecting network each time, the client’s procedure would pass the host’s IP address to the
server’s procedure which provides DNS service and realize domain name resolution. That is, DDNS
captures the changing IP address and corresponds the domain name, which is how other clients
communicate.
Summary of Contents for PS-55B Series
Page 1: ...Contents 1 USER MANUAL Network Speed Dome Version 1 0 Date June 2018 ...
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Page 13: ...2 Installation 5 2 Installation 2 1 Dimension Ceiling Installation Bracket Installation ...
Page 46: ...38 2 4 Inch TFT POE Terminal User Manual Fig 2 48 Auto Tour Fig 2 49 ...