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RS-HD256-AO Nextchip 2440H+Sony IMX323

Date: 2016-12-26

Technical characteristics

1IMX323 mega HD image sensor, 1080P, AHD/TVI/CVI/CVBS output, Effective resolution is up

to 1920*1080/960H

2OSD support 15 different languages, Digital function/ BLC, HLC/ motion detection/ privacy

protection, 2D/3D NR.

3Adopt Nextchip 2440H DSP, with OSD function (mirror imagecolor/ white&blackPAL/NTSC


4Support 3X AF + UTC + UTC control AF(for 3X AF Specification, pls follow the back of pages)

5AGC type, day-night effect is distinct, Various Day-night modes can be switched by OSD menu,

built-in HOLD picture (freezing) function.

6Can support UTC, 4-in-1 output, Output LCD/CRT can be chosen by OSD.

7Power(600W) Video (2KV) dual lightning protection design, PCB is OSP antioxidant with 38*38

dual border design.


1 Product structure description:

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


2 OSD 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)


3This product supports Auto-focus and zoom function, the matched function for OSD

menu shortcut key is as following:

LEFT Focus+ RIGHT Focus- UP Zoom+ DOWN Zoom-


RS-HD256-AO Nextchip 2440H+Sony IMX323

3.1: 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-EE

with ICR

3.2AF menu function

RS-HD256-AO Nextchip 2440H+Sony IMX323

SEMI: the module will be focused automatically once zooming manually (default)
AUTO:so 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).
CLOSE:no any change after power on.
WIDE:no mattter which zoom position is lens at before power off, it will back to 2.8mm after power
(3)TDN AF: re-focusing automatically after day&night switch.
(4)LENS INIT: initialize lens
(5)ONE SHOT AF: focus manually for one time

3.3:The operation and notice for adjusting & installing AF electric lens:
(1)Enter into OSD main menu,choose《AF》

RS-HD256-AO Nextchip 2440H+Sony IMX323

(2) On《AF》option, press the(ENSET)button again to enter into AF and adjust the
menu, as the picture below:

RS-HD256-AO Nextchip 2440H+Sony IMX323

(3)Choose the option 4, press ENSET button, then the lens will be

RS-HD256-AO Nextchip 2440H+Sony IMX323

(4)After the initialization of lens, choose option 6--RETURN, choosein
main menu.
(5)The 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-AO Nextchip 2440H+Sony IMX323

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

RS-HD256-AO Nextchip 2440H+Sony IMX323

(7)Operate zoom function following by page 3 of 《6-2. Description for OSD menu
shortcut key》
(8)The demo for operating electric zoom function:
The difference after using shortcut key UP (Zoom+) and DOWN (Zoom-):

RS-HD256-AO Nextchip 2440H+Sony IMX323

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

4 、AHD 3X AF special functions:
( 1)The module support M14/2.8-8mm or 2.8-12mm AF lens, support UTC, onboard
optional DC lens (IRIS) functions.
(2)Support 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.
(3)Support connecting DVR through UTC function, you can set OSD parameters,
switch AHD 1080P or CVBS 960H output on DVR directly.
( 4 ) OSD with TDN AF function, no matter daytime or night, AF lens will focus
automatically to reach the best image resolution after IR-CUT switched.



RS-HD256-AO Nextchip 2440H+Sony IMX323

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