
GVR3550 USER MANUAL
Grandstream Networks, Inc.
GVR3550 User Manual
Page
74 of 76
Firmware Version 1.0.0.0
Last Updated: 10/2013
Incorrect alarm input signal
Two circuits having been connected to one alarm simultaneously
15.
Unable to control the GVR3550 via remote control
Remote control distance is too far or the control angle is far too partial.
Run-down batteries
Damaged control/front panel
16.
Insufficient record time
Large stream caused by poor quality of the front camera, dirty camera Lens, backlight
installation, unadjusted aperture lens.
Insufficient HDD capacity
Damaged HDD
17.
Unable to play downloaded file
You have no installed player or unplugged the external storage device unproperly.
18.
No image, black screen
Check whether the IP of remote IPC is correct
Check whether the port No. of remote IPC is correct
Check whether the username/password of remote IPC is correct
Check whether the internet connection of remote GVR3550 is correct
19.
Incomplete display interface
Confirm the current resolution, check the resolution the LCD supports. If the resolution is
1920*1080, the LCD should support 1920*1080 resolution.
20.
No LCD HDMI output
Check the HDMI cable and whether LCD works in HDMI mode
Check whether HDMI cable is in the wrong situation
Images are not fluent on multi-channel client monitor
Check network bandwidth, multi-channel monitor network bandwidth demand is high, need
100 MB above.
Check PC performance, multi-channel decoding has certain requirements for PC
performance, 16-way PC is required. General configuration: four-core CPU, 2 G memory,
independent card with 256M above.
21.
Multi-channel monitoring record lag
Please check the network bandwidth, the multi-channel monitoring requires one hundred
trillion bandwidth.Then please make sure the PC configuration is suitable for