Record rate
The record rate is the amount of pictures recorded to disk in a second, or pictures
per second (PPS). This is a system wide figure, so whether 1 or 16 cameras are
recorded, the record rate remains the same. The update rate per camera can be
worked out using the record rate:
Update rate
=
No. of cameras
Record rate
A table of common record rates can be found in Appendix 2.
Hard disk capacity
Analogue VCRs use 3-hour tapes which record a finite number of images. Unlike
a VCR, the number of images that can be recorded to a digital multiplex recorder
can be increased by using a larger capacity hard disk. Digital Sprite Lite is currently
available with hard disk sizes of 30, 45, 60, 75, 90, 120, and 150GB.
Using a larger hard disk will allow image quality, recording rate, or recording time
to be increased. For example, a 75GB disk can record up to 7 days at 24-hour
time-lapse mode speeds, but a 30GB disk can only record 3 days.
Calculating recording time
Digital Sprite Lite calculates the recording time automatically when the record rate
and image quality are entered. Alternatively, an interactive record calculator is
available for download from our web site:
www.dedicatedmicros.com
Quick install
Digital Sprite Lite can be installed in as little as 4 steps, and being plug-and-play,
cameras can be recorded within minutes.
main monitor
RJ-45 ethernet
SCSI-2 connector
connection
RS-485/RS-232 connector
-
+
AUX IN
S-Video main monitor
STEP 1. Connect cameras
Connect cameras to the video inputs marked VID1 to VID9 (9-way unit) or VID16
(16-way unit). Use the bottom row of connectors for looping through to other equipment.
STEP 2. Connect monitors
Connect the video output marked MON A to the Main monitor (digital playback
and multiscreens).
Connect the video output marked MON B to the optional Spot monitor (analogue
full-screen images).
STEP 3. Connect the external devices
If external devices need to be connected to Digital Sprite Lite, go to the next
section – 'Connecting external devices', before proceeding to Step 4.
STEP 4. Connect power
Once the Digital Sprite Lite is in its final position and all external devices have
been fitted and powered, connect the PSU to the rear of the unit and apply the
power. The power-up procedure may take up to one minute before Digital Sprite
Lite can be used.
will now record all cameras in a 24-hour time-lapse mode
without any further programming!
spot monitor
cameras
loopthrough
5
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