IC Realtime Combo Series: 8 Channel DVR with built-in 10 LCD monitor - Manual (Page 121)

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Please note, if you want to use local storage function, your storage device need to support
current function.
Please select the storage device first and then you can see the items on your right become valid.
You can check the corresponding item here. See Figure 7-46.
Figure 7-46
Please refer to the following sheet for detailed information.
Parameter Function
Format Clear data in the disk.
Read/write Set current SD card as read/write
Read only Set current card as read.
Recover Recover dada after error occurs.
Please note system needs to reboot to activate current setup.
7.3.3.2 Alarm I/O
Here you can search alarm output status. See Figure 7-47.