Sony HSR-1 Specifications page 5

Features
Playback-during-recording
(HSR-2 only)
The HSR-2 features a playback-during-recording function, allowing
you to view previously recorded images while continuing to
record. This function allows you to quickly verify whether an
alarm is real or false -- with the HSR-2 continuing to record.
The HSR-2 can also be programmed to playback a set number of
minutes from the instant you press the pre-reverse play button.
20 GB HDD
(HSR-2 only)
The 20 GB HDD (Hard Disk Drive) of the HSR-2 holds a large volume
of data -- approximately one third of the capacity of a 270-minute
DV tape. For example, in 24-hour mode using a 270-minute tape,
eight hours can be recorded to the HDD alone. This allows you
greater peace of mind because images will continuously record to
the HDD if a problem recording to DV tape should arise. Another
advantage is that the data on the HDD can be accessed faster than
from the tape.
Network capability with the
optional SNT-V304*
The HSR recorders give you the option to expand your existing
surveillance system. By connecting the SNT-V304 Video Network
Station to either HSR recorder, your surveillance system is network-
ready. The SNT-V304 gives you full remote control of the HSR
recorders using either a LAN or WAN, or connecting via the Internet.
The SNT-V304 also makes the HSR-2's playback-during-recording
feature especially effective,
because it allows remote-
site auditing over virtually
any network.
*Version 2.00 or higher required
Four Alternative Quality Modes
The HSR recorders can be switched between four levels of picture
quality: Super, High, Middle and Low. This enables you to balance
between picture quality and recording time as appropriate to your
application. Super mode provides excellent picture quality with a
horizontal resolution of more than 500 TV lines. High mode provides
a much higher S/N ratio and equivalent resolution.
More Shots Recorded
Large Storage Capacity
A 270-minute DV cassette tape provides a storage capacity of more
than 60 GB. This means you can handle a larger quantity of images
than you could using conventional equipment.
Number of recorded pictures for each
mode
Long Recording Time
The HSR recorders' long recording
times free you from having to change
your tapes as often as is required with
conventional equipment.
Number of days
when recorded at one second intervals
with one camera input
High Refresh Rate
With conventional equipment, there is always the possibility that
key scenes, such as criminal activity and alarm incidents, may be
missed during the long recording interval of each camera. The HSR
recorders are capable of recording images at a high refresh rate
for each camera, so you no longer have to worry about failing to
record key scenes.
Recording interval per camera (in High mode)
24-hour recording mode with 16 camera inputs
1-week recording mode with 8 camera inputs
High Reliability and Less
Maintenance
Reduced Use of Tape Mechanism
The hybrid configuration of HDD and DV tape drive achieves
higher reliability and reduces maintenance. While conventional
equipment has to work continuously during the recording operation,
the tape transport and heads of the HSR recorders are stationary
most of the time (because the DV tape drive works only while
the image data is being transferred from the HDD). Therefore the
mechanical transient motion and head running time are drastically
reduced to one quarter* of the time taken by conventional
equipment, resulting in excellent reliability and reduced costs.
*in 24-hour recording mode using a 270-minute tape.
Super mode 945,000
High mode 1,890,000
Middle mode 3,779,000
Low mode 7,558,000
DV 270-minute tape
Super mode 10.9 days
High mode 21.8 days
Middle mode 43.7 days
Low mode 87.4 days
0.7 sec.
2.6 sec.