AHD DVR Specification

Firmware

Operating System

Embedded Linux

Video parameter

Input channel

4ch

Preview resolution

720P

Image coding format

H.264

Encode Resolution

720P

Video bitrate

512Kbps~4192Kbps,default 2048Kbps

Video Playback

4*720P

Subcode Resolution

Cif@15fps

Stream Type

Video stream/compound stream

Dual-stream

Support

Audio parameter

coding standard

G.711A

Audio Sample Rate

8KHz/16Bit

AUdio Bitrate

64Kbps

Video Interface

Anolog Video Input

4xBNC Interface

Video in

1xVGA,1xHDMI

Audio Interface

Audio in

1xRCA  (4CH optional)

Audio output

1xRCA

video Management

Recording Mode

Alarm Recording, Auto Recording,Motion Detection Recording, Manual Recording

Backup

U disk, Hard Drive, Internet.

Alarm

Alarm Input

4CH (optional)

Alarm Output

1CH (optional)

Hard Disk

Hard Disk Interface

1xSATA

Single Disk Capacity

4TB

Communication Interface

Network Interface

1xRJ45 Interface, 100M Ethernet Interface

Communication

1x485 Interface (Extensible matching)

USB

2xUSB Interface

                          AHD Camera Specification

Others

BNC cable

4*18 meters

Power Supply

DC12V 1A

Power Consumption

4W(Without HDD)

Operate Temperature

 -10°C~+55°C

Working Humidity

10%~90%

Technical Parameters

Camera quantity

4pcs

Sensor

1/4" 1 Mega PICADIS                                            

Signal System

PAL/NTSC

Mega pixel

720P                        

Sensor

AR0141

Minimum illumination

0.1Lux @ (F1.2,AGC ON),0 Lux with IR

Shutter

1/25s to 1/25,000s

Lens

3.6mm/6mm

Lens Interface type

M12

Day & Night Mode

ICR

IR View Distance

20~30M

Video Output

1Vp-p Composite Output(75Ω/BNC)

General Specification

S/N

>62dB

Operating Environment  

-40°C~60°C, < 90%

Power Supply 

DC12V±10%

Power consumption 

4W MAX

Level of Protection

IP66