Specifications
Item
Model
DS-7204HVI-S
Video
compression
H.264
Preview
resolution
PAL:
352×288
;
NTSC:
352×240
Playback
resolution
QCIF/CIF
Video
input
4
Video
input
interface
Composite
video
output
BNC
(Electrical
Level:
1.0Vp-p,
resistance:
75
Ω
)
1
channel,
BNC
(Electrical
Level:
1.0Vp-p,
resistance:
75
Ω
)
Spot
video
Output
1
channel,
BNC
(Electrical
Level:
1.0Vp-p,
resistance:
75
Ω
)
Frame
rate
PAL:1/16
to
25FPS,
NTSC:
1/16
to
30FPS
Audio
compression
OggVorbis
Audio
compression
rate
16Kbps
Audio
input
1
Audio
input
interface
RCA
(Electrical
Level:
2.0Vp-p,
Resistance:
1K
Ω
)
Audio
output
1
channel,
RCA
(Linear
Electrical
Level,
Resistance:
600
Ω
)
Stream
type
Video/Video&Audio
Bit
rate
32Kbps
to
2Mbps,
self-defined
HDD
interface
1
SATA
interface
can
support
1
SATA
HDD
up
to2000GB
in
total
Communication
interface
1
RJ45
10M/100M
self-adaptive
Ethernet
Interface
1
RS-485
interface
USB
interface
1
USB
interface,
USB2.0
1
VGA
interface
can
support
resolution:
VGA
interface
800×600/60Hz,
1024×768/60Hz,
1280
×1024/60Hz
External
alarm
in
4
Relay
output
1
Voice
talk
1
channel,
RCA
(Electrical
Level:
2.0Vp-p,
Resistance:
1K
Ω
)
Dual
stream
Available
Power
supply
12VDC
8
