User Manual
Table Of Contents
- Chapter 1 Product introduction
- Chapter 2 Installation
- Chapter 3 Getting started
- Chapter 4 Recording
- Chapter 5 Alarm settings
- Chapter 6 Network settings
- Configuring general network settings
- Configuring DDNS
- Configuring an NTP server
- Configuring email
- Configuring UPnP
- Configuring SNMP
- Configuring an FTP server to store snapshots
- Configuring a remote alarm host
- Configuring multicast
- Configuring the server and HTTP ports
- Configuring the RTSP service port
- Telnet setup
- Checking network status
- Exporting network packet data
- Chapter 7 HDD management
- Chapter 8 Operating instructions
- Chapter 9 Live view
- Chapter 10 Controlling a PTZ camera
- Chapter 11 Playing back a recording
- Chapter 12 Archiving recorded files
- Chapter 13 Recorder management
- Chapter 14 Camera settings
- Chapter 15 User management
- Chapter 16 Using the web browser
- 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
- Index
TruVision DVR 12 User Manual 141
Appendix E
Maximum pre-recording
times
The maximum pre-recording time that can be selected depends on the bit rate.
Frame rate, resolution and image quality do not impact time.
Note: This information only applies when the bit rate is set to Constant (see
“Initializing the recording settings” on page 22 for more information).
Constant bit rate
Maximum pre-recording time
(seconds)
32 30
48 30
64 30
80 30
96 30
128 30
160 30
192 30
224 30
256 30
320 30
384 30
448 30
512 30
640 30
768 30
896 30
1024 30
1280 25
1536 20