Bosch DHR-1600A-150A Glossary page 11

Camera, DVR, and VIP products
Sector blanking The ability to blank out video in any number of the pan sectors.
Sensitivity A measure of the amount of light required to provide a standard video signal. Sensitivity
values are stated in lux (see Lux) or foot-candles.
SensUp Ups (increases) camera sensitivity by increasing the integration time on the CCD. This is
accomplished by integrating the signal from a number of consecutive video frames to reduce
signal noise.
SFP Small Form-factor Pluggable: A small, standardized module for network connections; designed
as a plug connector for high-speed network connections.
SI International System of Units (abbreviated SI from the French Le Système international
d'unités): The world's most widely used system of units, both in everyday commerce and in
science.
Singlemode Fiber An optical fiber with a silica (or glass) core with a diameter of less than 10 microns. Used for
high-speed transmission over long distances, it provides greater bandwidth than multimode
(see Multimode Fiber), but its smaller core makes it more difficult to couple the light source.
Singlemode fiber optic transmission systems use more expensive laser-based light sources.
SNIA Storage Networking Industry Association: Association of companies for defining the iSCSI
standard.
SNMP Simple Network Management Protocol: IP based protocol for network management, as well as
managing and monitoring network components. SNMP allows getting information from
networking devices (GET), to set parameters on network devices (SET), and to be notified
about certain events (EVENT).
SNTP Simple Network Time Protocol: A simplified version of NTP (see NTP).
Spot Focus Activates Auto Focus for three seconds after camera movement.
Subnet mask Subnetting is a method that allows one large network to be broken down into several smaller
ones. IP addresses are grouped by something called a subnet mask. Every IP address has a
corresponding subnet mask. The subnet mask specifies the range of the IP addresses in a
group. The subnet mask looks a lot like an IP address. It is made up of four eight-bit numbers
separated by periods. These numbers once again range from 0 to 255. A typical subnet mask
is 255.255.255.0.
TCP/IP Transmission Control Protocol/Internet Protocol: a communications protocol suite that
provides two data transport methods. TCP is a connection-based protocol that ensures that
data arrives intact and complete. UDP is a connectionless, best effort protocol that simply
sends out packets. UDP is typically used for streaming media, while TCP is used when error-
free delivery is required.
Telnet Log in protocol with which users can access a remote computer (Host) on the Internet or local
area network (LAN) connections.
Tilt Camera movement in the vertical direction.
TLS Transport Layer Security: TLS 1.0, 1.1, and the standard advanced developments of SSL 3.0
(Secure Sockets Layer, the predecessor to TLS).
Bosch Security Systems
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Glossary of CCTV Terms
Glossary of CCTV Terms | en
AR18-08-B000 | | Version 1.0 | 2008.08
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