Milestone XProtect Express 2014 - Manual (Page 191)

Milestone XProtect ® Express 2014 Administrator's Manual
www.milestonesys.com 191 Glossary of Terms
A file extension (.scs) for a script type targeted
at controlling clients.
SDK
Software Development Kit —programming
package enabling software developers to
create applications for use with a specific
platform.
SIM
Subscriber identity module —circuit stored on a
small card inserted into a mobile phone or
computer, or other mobile device. The SIM
card is used to identify and authenticate the
user.
SLC
Software license code —product registration
code required for using the XProtect Express
software. If you do not have system
administration responsibilities, you do not have
to deal with SLCs. System administrators use
SLCs when installing and registering the
software.
SMTP
Simple Mail Transfer Protocol —standard for
sending e-mail messages between mail
servers.
Subnet
A part of a network. Dividing a network into
subnets can be advantageous for
management and security reasons, and may in
some cases also help improve performance.
On TCP/IP-based networks, a subnet is
basically a part of a network on which all
devices share the same prefix in their IP
addresses, for example 123.123.123.xxx,
where the first three numbers (123.123.123)
are the shared prefix. Network administrators
use subnet masks to divide networks into
subnets.
T
TCP
Transmission Control Protocol —protocol (or
standard) used for sending data packets
across networks. TCP is often combined with
another protocol, IP (Internet Protocol). The
combination, known as TCP/IP, allows data
packets to be sent back and forth between two
points on a network for longer periods of time,
and is used when connecting computers and
other devices on the internet.
TCP/IP
Transmission Control Protocol/Internet
Protocol
—combination of protocols (or
standards) used when connecting computers
and other devices on networks, including the
internet.
Telnet
Terminal emulation program used on TCP/IP
networks. With Telnet, you can connect to a
server from a computer on the network and
execute commands through Telnet as if you
were entering them directly on the server.
Windows includes a client for use with Telnet.
U
UDP
User Datagram Protocol —connectionless
protocol for sending data packets across
networks. Primarily used for broadcasting
messages. UDP is a fairly simple protocol, with
less error recovery features than, for example,
the TCP protocol.
UPS
A UPS (Uninterruptible Power Supply) works
as a battery-driven secondary power source,
providing the necessary power for saving open
files and safely powering down your system in
the event of power irregularities. UPSs vary in
sophistication, but many UPSs include
software for automatically saving open files, for
alerting system administrators, etc.