User Manual

Grandstream Networks, Inc. GXV3500 User Manual Page 34 of 82
Firmware Version 1.0.1.94 Last Updated: 05/2016
On Screen Display (OSD) Format to display the OSD date
o OSD Text: Input text (to identify the camera) shown on the screen.
o OSD Position: Show the OSD in either top or bottom position on screen.
o Display Time: When checked, time will be displayed inside the video image
o Display Text: When checked, inputted text will display on video image
Video Settings
• Primary Stream Settings:
o Preferred Video Codec: MJPEG and H.264 supported, H.264 recommended.
o Resolution: The resolution in pixels used at video image
o Bit Rate: video bit rate or bandwidth used
o Maximum Frame Rate: Maximum frame rate used (more data if big frame used)
o Bit Rate Control: Constantly bit rate, or variable bit rate
o Image Quality: Image quality used when Variable Bit Rate used
o I-frame Interval: I-frame interval (suggested 2~3 times of frame rate)
 Secondary Stream Settings: Same as primary stream.
NOTE:
 H.264 suggested if camera needs to be viewed via Internet.

The definition of Baseline, Main Profile and High profile of H.264 please refer to:
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC
 If MJPEG selected, reduce max. frame rate to min. value to save bandwidth and get better image
 Grandstream IP Camera provides two video streams, user can use them with flexibility. For example,
the high-resolution stream for local recording; another low or high resolution for remote monitoring; or
vice versa depending application scenarios.
 Use below link to calculate bandwidth and storage before installation
http://www.grandstream.com/support/tools/bandwidth-storage-calc
 Audio Settings: .
o Preferred Audio Codec: PCMU, PCMA. Audio also can be disabled.
o Microphone Volume: Slide to adjust microphone gain.
o Speaker Volume: Slide to adjust the speaker volume connected.