Pelco EA2010 operation manual Options, Operation

3.1 OPTIONS

DT200	Dual desktop mount kit; two units
	can be mounted side-by-side in one
	desktop chassis.
R300	Rack mounting kit. Up to three (3)
	units may be racked horizontally In a
	single rack kit. Blank filler panels
	provided for use when less than three
	units are racked.

4.0 OPERATION

Optimum performance Is achieved if an oscilloscope a standard EIA resolution chart are used in making gain and boost adjustments. The (GAIN control should be adjusted for an output level of 1 volt p-p and the L.F. BOOST control should be adjusted for minimum tilt during sync pulses. The H.F. BOOST control is then adjusted for optimum resolution wedge reproduction.

If the use of a resolution chart is precluded, the H.F. BOOST control should be adjusted for maximum sharp- ness of sync pulse edges—without overshoot.

In the absence of an oscilloscope, a less precise (but often equally satisfactory) adjustment can be made as follows:

1.Set the GAIN and BOOST controls approximately 1/3 turn from fully counterclockwise.

2.Adjust GAIN control for satisfactory overall pic- ture contrast.

3.Adjust L.F. BOOST control for optimum detail. Too much boost (clockwise) can cause picture in- stability and/or smearing (trail).

4.Adjust the H.F. BOOST control to further optimize picture detail. Note that the effectiveness of this control is hardly perceptible unless very fine pic- ture detail is present in the camera signal output. An excessive setting of this control (clockwise) can, however, increase picture noise.

Refer to Figure 1 for a typical system configuration.

OUTPUT INPUT

12 VAC

Figure 1. Typical System Configuration

2 Pelco Manual C630M Rev A (8/90)