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RS-HD256-A0 (4-in1 output)

Date: 2017-05-03

1NameAHD Mega HD Module

2ModelRS-HD256-A0   (4-in1 output)

3Technical characteristics

3.1IMX323 mega HD image sensor, 1080P, AHD/TVI/CVI/CVBS output, Effective resolution is up to 1920*1080/960H

3.2OSD support 15 different languages, Digital function/ BLC, HLC/ motion detection/ privacy protection, 2D/3D NR.

3.3Adopt Nextchip 2440H DSP, with OSD function (mirror imagecolor/ white&blackPAL/NTSC switch)

3.4Support 3X AF + UTC + UTC control AF(for 3X AF Specification, pls follow the back of pages)

3.5AGC type, day-night effect is distinct, Various Day-night modes can be switched by OSD menu, built-in HOLD picture (freezing) function.

3.6Can support UTC, 4-in-1 output, Output LCD/CRT can be chosen by OSD.

3.7Power(600W) Video (2KV) dual lightning protection design, PCB is OSP antioxidant with 38*38 dual border design.


 RS-HD256-A0   (4-in1 output)

RS-HD256-A0   (4-in1 output)

6Product structure& wiring definition diagram

RS-HD256-A0   (4-in1 output)


RS-HD256-A0   (4-in1 output)



7Product structure description:

(1) RS-HD256-A0  The power connector is 1.25*4pin as standard.

8OSD function instructions

(1) PAL/NTSC: Enter into OSD menu, enter into option 8 (Adjust) and then go into option 4 (NTSC/PAL) to switch freely. Press right button(shortly press) once switch to NTSC, twice to switch to PAL. Press left button to return, and press Save before exit.(The default is PAL)

(2)4-in-1 switch (shortcut switch)Power on (without enter into main menu), long press the middle button for cyclic switching, first time comes to TVI, second time is CVI, third time is CVBS, fourth time is AHD.(The default output is AHD)

9、This product supports Auto-focus and zoom function, the matched function for OSD menu shortcut key is as following:

LEFT Focus+RIGHT Focus-UPZoom+DOWN Zoom-            ENSET

RS-HD256-A0   (4-in1 output)


5.9.1: Instruction for the matched Auto-focus zoom lens: (The firmware should be corresponding with lens millimeter)

(1) M14/2.8-8mm_1/2.7(1.25*8pin)

(2) M14/2.8-12mm_1/2.7(1.25*8pin)

Recommendations for lensD14-02812IR3MP-C-EE /  D14-02812ICR3MP-C-EEwith ICR



   SEMI: the module will be focused automatically once zooming manually (default)

   AUTOso long as the objects move, the module will focus on it automatically.

   MANUAL: zoom manually need focusing manually at each time.


SAVE POSI when power on, it can get back to the last position saved before power off (default).

   CLOSEno any change after power on.

   WIDEno mattter which zoom position is lens at before power off, it will back to 2.8mm after power on.

(3)TDN AF: re-focusing automatically after day&night switch.

4LENS INIT:  initialize lens

5ONE SHOT AF: focus manually for one time

9.3The operation and notice for adjusting & installing AF electric lens:




4After the initialization of lens, choose option 6--RETURN, choosein main menu.

5The lens initialization has been finished at this moment, you can move on to the next step if the image is focused clearly; if not, please operate continually according to the below process:

RS-HD256-A0   (4-in1 output)

6After focusing manually, lock the screw of lens mount tightly, as picture below:



RS-HD256-A0   (4-in1 output)

7Operate zoom function following by page 3 of 6-2. Description for OSD menu shortcut key

8The demo for operating electric zoom function:

The difference after using shortcut key UP (Zoom+) and DOWN (Zoom-):



Use the AF lens matched with UTC function of AHD DVR (RS-AT2004/08-B0):

10、AHD 3X AF special functions:

1The module support M14/2.8-8mm or 2.8-12mm AF lens, support UTC, onboard optional DC lens (IRIS) functions.

2Support connecting DVR through UTC function, it can realize that “mouse wheel” or “dynamic arrow” control AF zoom, operate “coaxial control” on DVR, zoom and focus on AF lens, manually focus and auto focus.

3Support connecting DVR through UTC function, you can set OSD parameters, switch AHD 1080P or CVBS 960H output on DVR directly.




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