Maxtor SLD240 - Manual (Page 16)

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4. BASIC OPERATIONS
This section shows you how to operate and manage the DVR.
4.1 Configure Recording Settings
Recording Time settings (Recording Rate and Picture Quality Setting)
Recording time will vary depending on the image size, recording rate, and the capacity of th e hard disk
drives. Generally, the DVR comes with a built-in hard disk drive for continuous recording from one to four
weeks under most recording conditions. Table 4.1.2 shows the possible recording times based on an
80GB hard disk drive at certain refresh rates and the corresponding image quality. With one or more
hard disk drive(s) in operation, please calculate the necessary recording time using the table below. For
example, if the unit is set to record images with BEST quality at a 60 fps record rate, n ormally an 80GB
hard disk drive will be filled in 15 hours (See the gray area in the table). If a 240GB hard disk drive is in
use under the same refresh rate and picture quality, it will be filled in 45 hours (3 times the rate of an
80GB hard disk drive).
Set up the REC Time Mode when a multiplexer is connected
If a multiplexer is connected, for optimum image recording and playback, the record speed of the
multiplexer must be correctly adjusted to match the DVR and set the MULTIPLEXER option on the
setup menu to ON. This can be done by the method detailed below.
4.1.1 Multiplexer Setup
Connect the SW. OUT terminal in 9-PIN D-SUB connector on the rear panel of the DVR to the
multiplexer’s trigger contact. The DVR will provide the timing signal to the multiplexer.
Note: The DVR will only send out a timing signal while it is in RECORD mode.
In the multiplexer’s menu, set the recording mode to SYNC for recording in all DVR refresh rates except
60fps and 30fps. In SYNC mode, if the DVR changes the recor ding speed, the multiplexer will
automatically adjust the recording to match. Be sure to set your multiplexer’s timing signal to falling. If
you wish to record in 60fps or 30fps, put the multiplexer in real-time instead of SYNC. 60fps and 30fps
timing signals are constantly negative/falling.