Pelco CM9700UTP32A manual Advance BLACK-WHITE Video Signal Settings DAY/NIGHT Cameras

ADVANCE BLACK-WHITE VIDEO SIGNAL SETTINGS (DAY/NIGHT CAMERAS)

Using a video signal generator, complete the following steps to fine tune the black and white signal:

1.Verify the color video signal (refer to Advance Color Video Signal Settings on page 15).

2.Send a black-white video signal, from a signal generator or a black-white camera, through the UTP to the unit.

3.Set the rotary switch to the correct position for the cable length (refer to Table D on page 13). If the cable length is not known, then begin at position 1 on the rotary.

4.The LED for the camera input on the front panel glows orange if black-white video is present.

5.Turn the rotary switch on the front panel, beginning at position 1, until the video signal on the oscilloscope resembles Figure 12.

GAIN SET CORRECTLY,

NO OVERSHOOT

Figure 12. Ideal Black-White Video Signal

6.If the video signal is out of range, increase the gain by resetting the position of the DIP switches (refer to Table E on page 14). The optimal DIP switch position for black-white video is medium gain (300 meters). A high gain setting will overamplify the signal (refer to Figure 13).

GAIN IS HIGH

Figure 13. High Gain Signal

16 C3646M-C (6/09)