Specifications

60
short delay?
A: 1) It’s normal if less than 10 seconds; 2) Confirm the DVR environment
network speed is guaranteed.
19. Serious image delay during cell phone monitoring?
A: 1) Change the “wireless network” into 2.5G; 2) Confirm the DVR
environment network speed is guaranteed; 3) Do not put cell phone in a weak
signal area; 4) It’s normal if less than 10 seconds.
Appendix 2 harddisk space occupation calculation
This DVR data harddisk occupation per channel/hour is as following table
according to different bit rate and resolution:
(The table is only for reference, the real product shall prevail) Unit: MB/
channel/hour
Bit rate
Resolution
Excellent Good Ordinary
Highest (D1)
400 300 200
High(half-D1)
350 250 150
Normal(CIF)
300 200 100
According to this table, for a 4-channel DVR, if the resolution is CIF and video
bit rate is “excellent”, then the mainframe can record the days in following
formula 24 hours per day:
N = 1000G * 1000 / (4 * 300 * 24) = 34.7 days
Where, N is the number of days, 1000G * 1000 = 1000000MB is the total
capacity of the harddisk, 4 * 300 * 24 = 28800 is the harddisk space occupied by
4 cameras 24 hours per day.
The data from different environment, signal source and bit rate will be different,
so the data can only serve for reference.
Appendix 3 Player
Open the “player” folder in the CD-ROM, double-click ，it will pop up a