Otima DVR-0420TF, User Manual

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7
NOTICE: Sensor input is RECOGNIZED as LOW when alarm signal is on a level with GND, and it is
recognized as HIGH when alarm signal is FLOATING or 5V. Following is internal circuit.
Thus, there is a danger of damage, when the sensor input goes to a Negative level or voltage higher than 5V.
5) HDD connection
Notice:
-The 4 CH DVR capable of accomeudating maximum 2 internal hard drives.
-Hard Disk Master and Slave jumper pin must be set correctly, otherwise it makes DVR react faulty.
Hard Disk testing table:
Brand Model Capacity Notice
Seagate Barracuda 80 GB
IBM DeskStar 80 GB
WD2000 Caviar 200 GB
Hitachi DeskStar 80 GB
Maxtor MaxLineII 300 GB
Internal Circuit
1. Make sure the HDD is MASTER.
2. Make sure the cable connector is
correct.
3.
Please check the HDD panel for
Master set up.
1. Make sure the HDD is MASTER and
SLAVE.
2. Make sure the cable connector is
correct.
3. Please check the HDD panel for
Master and Slave set up.
HDD
MASTER
MAIN BOARD
I/O BOARD
Set the drive jumpers as specified by hard disk drive manufacturer.
1
2
3
1
3
2
tie
HDD1
HDD2
MASTER
SLAVE
MAIN BOARD
I/O BOARD
Set the drive jumpers as specified by hard disk drive manufacturer.
2
1
3
1
How to connect single HDD
2
How to connect 2 HDD
D1
5
V