TOA Electronics C-DR161 CU Series Before Recording, Recording order to hard disks

15. RECORDING

15.1. Before Recording

Auto-recordings are normally performed according to the preprogrammed schedule. Operations to start recording such as pressing the key are not required. You can also make recording by pressing the Priority Recording key outside the scheduled time period. Perform disk mode and overwrite settings before recording.

15.1.1. Disk mode

Normal and mirror modes are available to this mode. For models with a single hard disk (versions with a model number suffix -08, -1, D08 or D1), Mirror settings are available only when the hard disk expansion unit is connected. (Refer to p. 101; Equipment maintenance.)

Notes

•When the disk mode is changed, the hard disk is initialized, causing the recorded images to be erased. Be sure to determine the disk mode before use.

•Unless the disk mode setting is performed, mirror recording cannot be performed as the hard disk is factory- preset to normal mode.

Normal mode: When the first hard disk finishes recording, the second hard disk automatically begins to record. When the settings (recording rate and picture quality) of both normal and mirror modes are set to be identical, the recording time for normal mode is about twice that of mirror mode. The total recording rate is 120 IPS maximum.

Mirror mode: The same image is simultaneously recorded on both hard disks. Even if one of the two hard disks fails, the other hard disk continues to record, allowing all recorded images to be played back. The total recording rate is 60 IPS maximum. Set the disk mode to Mirror when performing mirroring by the two built-in hard disks or when performing mirroring by the built-in hard disk and the hard disk expansion unit.

15.1.2. Recording order to hard disks

Recordings to the built-in hard disks are performed in the following order.

Normal mode		Mirror mode
One hard disk	Two hard disks	One hard disk	Two hard disks
HDD A	HDD A	HDD A	HDD A
	HDD B
			HDD B

Note

For the recording operation when the expansion unit is connected, refer to the instruction manual enclosed with the expansion unit.

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