Axis Network video User Manual

4
Camera protection and housings 39
4.1 Camera enclosures in general 39
4.2 Transparent covering 40
4.3 Positioning a xed camera in a housing 40
4.4 Environmental protection 41
4.5 Vandal and tampering protection 41
4.5.1 Camera/housing design 41
4.5.2 Mounting 42
4.5.3 Camera placement 43
4.5.4 Intelligent video 43
4.6 Types of mounting 43
4.6.1 Ceiling mounts 43
4.6.2 Wall mounts 44
4.6.3 Pole mounts 44
4.6.4 Parapet mounts 44
Video encoders 45
5.1 What is a video encoder? 45
5.1.1 Video encoder components and considerations 46
5.1.2 Event management and intelligent video 47
5.2 Standalone video encoders 47
5.3 Rack-mounted video encoders 48
5.4 Video encoders with PTZ cameras and PTZ domes 48
5.5 Deinterlacing techniques 49
5.6 Video decoder 50
Resolutions 51
6.1 NTSC and PAL resolutions 51
6.2 VGA resolutions 52
6.3 Megapixel resolutions 53
6.4 High-denition television (HDTV) resolutions 54
Video compression 55
7.1 Compression basics 55
7.1.1 Video codec 55
7.1.2 Image compression vs. video compression 56
7.2 Compression formats 59
7.2.1 Motion JPEG 59
7.2.2 MPEG-4 60
7.2.3 H.264 or MPEG-4 Part 10/AVC 60
7.3 Variable and constant bit rates 61
7.4 Comparing standards 61
Audio 63
8.1 Audio applications 63
8.2 Audio support and equipment 64
8.3 Audio modes 65
8.3.1 Simplex 65
8.3.2 Half duplex 66
8.3.3 Full duplex 66
TABLE OF CONTENTS

Axis Network video Specifications

General

Day/Night	Yes
Video Compression	H.264, MJPEG
Network Interface	Ethernet, PoE
Power	PoE
Operating Temperature	-20 °C to 50 °C (-4 °F to 122 °F)
Ingress Protection	IP66/IP67-rated
Protocols	HTTP, HTTPS, RTSP, FTP
Type	Network Camera
Output	1x digital output