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Digital Video Recorder
Comparison Chart
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Video Signal |
Support NTSC & PAL Standards |
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Operation System
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Embedded Linux Operating System
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Quadruplex Function
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Simutaneuos Record / Playback/ Network /
Backup
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Video Input
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4/8
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4/8
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4/9
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4
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9/16
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4 |
8/16 |
4/8
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16 |
Video Output |
1 BNC / 1 VGA / 1 S-Video / 1 Spot Out |
1 Main Monitor / 1 S-Video |
1 VGA / 1 Spot Out |
1 BNC |
1 BNC, 1 S-Video, 1 VGA |
1 BNC 1 VGA 1 Spot out
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1 BNC 1 VGA 1 Spot out |
1 Composite / 1 S-Video / 1 VGA / 1 Spot Out |
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Loop Out
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4/8
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4/8
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4/9
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0
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9/16
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0 |
0 |
4/8
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16 |
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Live Display
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1,4 / 1,4,6,8
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1,4 / 1,4,6,8
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1,4 / 1,4,9 PIP
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1, 4
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1,4,9, / 1,4,9,16
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1,4 |
1,4,6,7,8/ 1,4,7,8,9,10,13,16 |
1,4 / 1,4,6,7,8
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1, 4, 7, 8, 9, 10, 13, 16 |
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Playback Displays
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1, 4/1,4,6,8
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1,4 / 1,4,6,8
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1,4 / 1 4,9
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1, 4
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1,4,9, / 1,4,9,16
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1,4 |
1,4,6,7,8/ 1,4,7,8,9,10,13,16 |
1,4 / 1,4,6,7,8
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1, 4, 7, 8, 9, 10, 16 |
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Video Compression Method
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Adavanced MJPEG
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Wavelet
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MPEG 4
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MPEG4 (Modified)
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MPEG 4
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Average File Size
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5 ~ 18 KB
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8 ~ 24 KB
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1~3 Kb
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3~5KB
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-
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9-25 KB
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Live Display Resolution
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720 x 480 (NTSC), 720 x 576 (PAL)
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Live Display Rate
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120 fps /
240fps |
120 fps /
240fps |
120 fps /
240fps |
120fps
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240fps / 480fps
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120fps |
240/480 |
120 fps /
240fps |
480fps |
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Max Recording Speed & Rate
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60fps
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60fps
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120fps
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120fps
| 120fps |
120fps |
120fps |
120fps |
240fps / 480fps |
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Max Recording Speed Per Channel
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15fps / 7.5fps
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15fps / 7.5fps
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15fps / 7.5fps
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30fps
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13fps/7.5fps
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30 |
15/7 |
30fps /
15fps |
15fps / 30fps |
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Alarm In / Out
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4/1, / 8/1
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4/1, / 8/1
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4/4, 9/9
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4
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9/4, 16/4
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4/1 |
8:2 / 16:2 |
4/2, 8/2
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16/4 |
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System Control
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Key Buttons, IR Remote Controller, Remote Client
PC
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Audio |
1 / 1 |
1 / 1 |
4 / 1 |
4/0 |
4/1 |
1/1 |
4/1 |
4/1, 8/1 |
16/2 |
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Power Failure Recovery
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Auto Reboot while Maintaining Previous Record
Settings
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Alarm Notification
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Automatic E-mail: External Alarm, Video Loss, Power
Loss, HDD Failure
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System Utility
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2-Level Password / Auto Lock / Disk Format / Disk Check
/ Fan Lock Detection
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External Backup Device
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- USB 1.1 |
Yes
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No
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No
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No
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No
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Yes
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Yes |
No |
No |
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- USB 2.0 |
No
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Yes
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Yes
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No
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Yes
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No
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No |
Yes |
Yes |
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- Built-in DVD/CDRW
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No
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No
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No
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No
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No
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Yes
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Communication Port
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USB, RS-232C,
RS-422/485, Ethernet |
USB,
RS-422/485, Ethernet |
RS-485 / Ethernet
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USB,
RS-232C, RS-422/485, Ethernet |
USB1.1 RS232C RS485/RS422, Ethernet
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USB1.1RS232C RS485/RS422, Ethernet |
USB2.0 RS232C RS485/RS422, Ethernet |
USB2.0 RS232C RS485/RS422, Ethernet |
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Internal HDD Slot
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1
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2
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1
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1
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4
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1
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1 |
3 |
3 |
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Hot Swappable HDD
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Yes
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No
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No
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No
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No
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Network Interface
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Ethernet RJ-45 10/100
base-Tx
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Remote Client Software
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Proprietary Software
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Proprietary Software or Web Browser
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Proprietary Software
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Proprietary Software or Web Browser |
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Supports Dynamic/Static IP
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Yes
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Yes
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IR Remote Controller
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Control Up to 99 DVRs
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-
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Control Up to 99 DVRs
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Power
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100 or 230 VAC, Universal
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100 or 230 VAC, Selectable
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DC 12V, 3A 50~60Hz
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DC 12V, 5A
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100~127V / 200~240V,
50-60Hz |
DC 12v |
DC 12v |
100 or 230 VAC Selectable
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Free Voltage |
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Dimensions (inch)
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13.2 x 14.6 x 2.8
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14.2 x 13.25 x 4.25
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15.2 x 16.9 x 6.7 |
13.7 x 12.4 x 2.5
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13.75 x 17 x 3.5
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13.8 x 7.1 x 3.2 |
13.8 x 7.1 x 3.2 |
17 x 17.7 x 3.9
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17 x 17.7 x 4 |
Weight (pound) |
13.2 |
13.2 |
18.5 |
18.7 |
12 |
7.7 |
7.7 |
19.2 |
13.2 |