Terms - SSS Siedle DoorCom IP DCIP 650-0 Manual

3 Terms

Client
PC user connected to a network.
Gateway
Gateways link two different
systems and create connections
across network boundaries. During
this process, both the physical
transmission modes and also
protocols and addresses are adjusted
accordingly.
Full duplex
Two speaking users e.g. door
station and remote station have
an unrestricted speech connection.
Open duplex communication, i.e.
as opposed to the simplex speech
mode.
Half duplex
Two speaking users have one
speech connection which they
can use alternately, also known as
push to talk. The speech direction
is controlled by the user via the PC
client.
HTTP
The Hypertext Transfer Protocol is a
protocol used for the transmission
of data via a network. It is used
mainly to load websites and other
data from the Internet into a web
browser.
Hub
The term hub when used in relation
to network technology describes a
device which links network nodes in
a star formation. Normally, the term
hub is used to denote a multiport
repeater. It is used in order to link
network nodes or other hubs, for
example by means of an Ethernet.
IP address
Internet Protocol address
An IP address is a number which
permits PCs and other devices in
an IP network to be addressed. In
technical terms, the number is a
32-or 128-bit binary number.
6
IP
Internet Protocol
The IP is a network protocol in
widespread use in computer
networks. IP forms the first layer of
the Internet protocol family which
is independent of the transmission
medium. This means that computers
can be grouped within a network
into logical units known as subnets
by means of an IP address and
subnet mask.
IGMP V3
The Internet Group Management
Protocol is based on the Internet
Protocol (IP) and permits IP
multicasting (group communication)
in the Internet. IP multicasting is the
distribution of IP packages under
an IP address to several stations
simultaneously. Here, it is possible to
specify which source is required for
the multicast stream.
IWA
Interface working address
Six-digit address with which the
system interface video server e.g.
SIVS IP 610-... addresses the users.
LAN
Local Area Network
Local, cable-linked network.
Multicasting
Term to denote group/parallel calls
with video image to several PC users
which have the Software Client
installed. For this to be possible, the
UDP and IGMP V3 protocols must be
implemented in the network.
Push to Talk
In case of a connection using the
half-duplex mode (push-to-talk) a
button always has to be pushed to
change the speech direction.
Router
A router is a network device which
links several computer networks.
Network packages of a protocol
arriving at the router are analysed
for information and forwarded or
routed to the intended destination
network.
RS232
Designation for a serial interface, for
instance the COM interface of a PC.
RS485
Interface for serial data transmission
in the half-duplex mode.
Transmission to a pair of cores.
TCP
Transmission Control Protocol
The TCP is a protocol which
determines the way in which data
is exchanged between computers.
All operating systems in modern
computers have TCP capability and
use this protocol for data exchange
with other computers. The protocol
is a reliable, connection-oriented
transport protocol used in computer
networks. It is part of the internet
protocol family, which forms the
foundation of the Internet.
Server
A server is a program which waits to
be contacted by a client program,
after which it exchanges data with
the client program. The hardware
on which the server runs is known
as the host.
Subnet mask
The subnet mask, also known
as network mask, is a bit mask
which separates an IP address into
a network and a device or host
section. It is used in IP networks in
order to make routing decisions.
SUS
Siedle Universal Interface
UDP
User Datagram Protocol
The UDP is a minimal connectionless
network protocol which belongs to
the transport layer of the Internet
protocol family. It is the task of the
UDP to assign data transmitted via
the network to the right application.