Urmet 1783/69 Manual De Instrucciones página 9

For example, if it is requested to assign the cameras number 1 (A1,B1) and 4 (A4,B4) to the user 0 and the
other cameras to the user 1, set the dip switch in the following way:
RESET: If the CCTV Bus interface is removed from the system in order to be used in another system,
is necessary to reset it. To do this and erase all the active settings, open and close again the jumper
"RESET".
ON/OFF CAMERAS: If no camera is connected to an input or if it is needed to exclude temporarily the
selected camera from those displayed, put the respective dip-switch in OFF position. The dip-switch
number corresponds to the camera number (dip number 1 = camera connected to A1,B1 terminal pins).
For instance, if no camera is connected to A3, B3 terminal pins, set the dip-switch as follows:
DS1783-003B
Camera 1 is disabled
Camera 2 is disabled
Camera 3 is disabled
Camera 4 is disabled
Camera 1 is enabled
Camera 2 is enabled
Camera 3 is enabled
Camera 4 is enabled