User Manual
Table Of Contents
- Chapter 1 Product introduction
- Chapter 2 Installation
- Chapter 3 Getting started
- Chapter 4 Operating instructions
- Chapter 5 Live view
- Chapter 6 Controlling a PTZ camera
- Chapter 7 Playing back a recording
- Overview of the playback window
- Playback pop-up menu
- Instant playback
- All-day playback
- Searching recorded video
- Playing back recordings by time and video type
- Playing back recordings by event
- Creating and playing back bookmarked recordings
- Slideshow of snapshots
- Playing back recordings from the system log
- Playing back frame-by-frame
- Digital zoom in playback
- Chapter 8 Archiving recorded files
- Chapter 9 Using the web browser
- Windows Vista and 7 users
- Accessing the web browser
- Web browser overview
- Using the web browser to configure the device
- Searching and playing back recorded video
- Searching for event logs
- Dual streaming
- Controlling a PTZ dome camera in the web browser
- Capturing text insertions
- Text overlay
- Using a network storage system
- Chapter 10 Recording
- Chapter 11 Alarm settings
- Chapter 12 Network settings
- Configuring general network settings
- Configuring an NTP server
- Configuring e-mail
- Configuring SNMP
- Configuring the FTP server
- Configuring a remote alarm host
- Configuring multicast
- Configuring the server and HTTP ports
- Configuring the RTSP service port
- Checking network status
- Exporting network packet data
- Port forwarding
- Chapter 13 HDD management
- Chapter 14 Camera settings
- Chapter 15 NVR management
- Chapter 16 User management
- Appendix A Specifications
- Appendix B PTZ protocols
- Appendix C Port forwarding information
- Appendix D KTD-405 keypad
- Appendix E Maximum pre-recording times
- Appendix F Supported PTZ commands
- Appendix G Default menu settings
- Glossary
- Index
TruVision NVR 21 User Manual 159
Glossary
Term
Definition
Data redundancy
Writing data to two or more locations for backup and data recovery. For
example, data can be stored on two or more HDDs.
DDNS
Dynamic DNS is a method, protocol, or network service that provides
the capability for a networked device, such as a router or computer
system using the Internet Protocol Suite, to notify a domain name server
to change, in real time (ad-hoc) the active DNS configuration of its
configured hostnames, addresses or other information stored in DNS.
DHCP
Dynamic Host Configuration Protocol (DHCP) is a network application
protocol used by devices (DHCP clients) to obtain configuration
information for operation in an Internet Protocol network.
Dual stream
Dual stream is a technology used to record high resolution video locally
while transmitting a lower resolution stream over the network. The two
streams are generated by the NVR.
DVR
Acronym for Digital Video Recorder. A DVR is device that is able to
accept video signals from analog cameras, compress the signal and
store it on its hard drives.
HDD
Acronym for Hard Disk Drive. A storage medium which stores digitally
encoded data on platters with magnetic surfaces.
HTTP
Acronym for Hypertext Transfer Protocol. A protocol to transfer
hypertext request and information between servers and browsers over a
network.
Hybrid DVR
A hybrid DVR is a combination of a DVR and NVR.
NTP
Acronym for Network Time Protocol. A protocol designed to synchronize
the clocks of computers over a network.
NTSC
Acronym for National Television System Committee. NTSC is an analog
television standard used in such countries as the United States and
Japan. Each frame of an NTSC signal contains 525 scan lines at 60Hz.
NVR
Acronym for Network Video Recorder. An NVR can be a PC-based or
embedded system used for centralized management and storage for IP
cameras, IP Domes and other DVRs.
PAL
Acronym for Phase Alternating Line. PAL is also another video standard
used in broadcast televisions systems in large parts of the world. PAL
signal contains 625 scan lines at 50Hz.