Wholesale Spy Cameras - Spy Cameras China Factory Supplier
* AHD, Analog High Definition CCTV chip board.
* Powered by CMOS image sensor Sony Exmor CMOS IMX225 & Nextchip DSP NVP2431H.
* High Definition AHD 720P output, resolution 1280 x 720.
* PAL / NTSC setup on OSD menu.
* Default setup AHD-M / PAL signal output. (please message for pre-setup on CVBS or NTSC).
* IRC (IR-Cut-OFF) filter required for better picture color & quality.
* Day / Night mode support external triggering by CDS (or 3.5V ~ 5V voltage signal).
1pcs Camera module.
Special Notes for User / Installer / DIYer :
1. Before power on the board, please make sure no potential risk of short-circuit metal / raw wires around the board.
2. Most of the board has OSD (On Screen Display) menu for adjust different kinds of parameters of the camera, an external OSD cable or Keypad is necessary for openning the menu, the definition of the OSD pins usually as following :
GND : Common PIN
U : Up key
D : Down key
L : Left key
R : Right key
E / M : Enter key or Menu key
3. We strongly suggest to use a IRC (IR-Cut-Off) filter for this board, due to it's made by CMOS image sensor, otherwise it will have serious color distortion, this is the current best & practical way for CMOS camera board works good both on Day & Night. Usually there are two 2PINs connector on an CMOS board, the one is for connect to an IRC switcher, another one is external Day/Night signal for triggering / activating the IRC, please be patient to contact us if don't know how it works.
4. AHD camera board made by Nextchip NVP2431 has short-cut / direct function on OSD cable / keypad by press (hold-on) the key above 5sec :
Down key : change PAL / NTSC output mode
Left key : change AHD to CVBS output.
Right key : change CVBS to AHD output.
* By default, the board is configured on AHD output.