HBZMXSIB/10/16SD-OP-1
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Time Lapse VCRs
The time-lapse VCR reduces the number of cassettes required for a site. It also
reduces the amount of time spent changing them and the amount of storage space
required for them. Time-lapse VCRs record and play tapes more slowly by recording
fewer images. The speed of operation for a normal VHS VCR is 3 hours. The table
below gives examples of how many fields can be recorded on a 3 hour tape per
camera in various time-lapse modes.
Time Lapse mode
fields per second
with 1 camera
fields per second
with 10 cameras
fields per second
with 16 cameras
3 hour
50
5
3.125
12 hour
12.5
1.25
.78
24 hour
6.25
.625
.39
48 hour
3.13
.313
.2
Table 1 Time-lapse modes and recording quality
Features of your Multiplexer
To produce multi-screen displays and to multiplex cameras to tape, the multiplexer
digitises the camera input signals in sequence. For the colour models, unlike other
similar multiplexers, it uses ’Parallel Video Processing’ which means that it does it
more quickly. The camera update rate to tape is typically 2 to 3 times faster than its
competitors. This makes the image less jerky by capturing the maximum of 50 unique
fields-per-second to tape in the fastest time-lapse setting, which means that if an
incident occurs, less information is lost.
Summary of Contents for ZMX/BD/10
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