The keyboard controller can control AHD/TVI/CVI/ CVBS Analog high speed dome cameras, slow dome camera, zoom camera, decoders, etc. The electric outlet between the controlling keyboard and the receiving terminal is EIA/RS – 485, which enables the keyboard to control as many as 128 dome cameras or other terminals within a maximal communication range of 1.5 Km.

Product introduction:
1. Baud rate: 1200bps,2400bps,4800bps,9600bps,19200pbs,38400pbs
2. Protocol:Pelco-D ,Pelco-P ,SAMSUNG
3. Communication: RS-485
4. Power input: DC 12V -1A
5. Communication distance: max 1500m
6. Can control max 128pcs speed domes
7. Password setup function
8. Ambient Temperature: 0 celsius degree~60 celsius degree
9. Relative Humidity:90%RH
10. Dimension: 205mm*168mm*48 mm

Description of Main Functions
The main functions of the keyboard include:
1. The keyboard output adopts photoelectric insulated 485 control, which provides strong anti-jamming and long-range transmission.
2. The range for dome camera or decoder address setup: 1~255.
3. Variable-speed operation can be applied to the built-in dome of the high speed dome camera.
4. Pre-set positions can be setup and previewed in the high speed dome camera.
5. Up to four tour routes can be setup and previewed in the high speed dome
camera, with each tour having a maximum of 16 pre-set positions, dwell time and speed for each pre-set position programmable.
6. The high speed dome camera can be manually / automatically controlled.
7. Lens zoom ratio, focus and iris can be manually controlled.
8. More than one terminals, such as dome cameras and decoders, can be controlled.