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      Pelco Manual C2913M-F (08/05)
INSTALLATION
Lens Mounting
MC3610 and MC3710 Series cameras can use fixed iris, manual iris, auto iris, or direct drive lenses. Cameras
are factory-set for CS-mount lenses, but are easily adjusted for C-mount lenses.
1.
C-Mount Lens Only - Loosen the two back focus locking screws. Rotate the back focus adjust-
ment ring fully counterclockwise before installing the C-mount lens (refer to the section on Back Focus
Adjustment
).
2.
Screw the lens onto the lens mount. Be careful to prevent dust from entering the space between the
lens and the CCD element. If necessary, use clean, compressed air to remove any foreign matter.
3.
Auto Iris Lens Only - Connect the auto iris lens to the four-pin iris drive connector located on
the side of the camera. Pin connections for the iris drive connector are as follows.
PIN
DC (AID) AUTO IRIS LENS
VIDEO (AIV) AUTO IRIS LENS
1
Control coil positive (+)
Not used
2
Control coil negative (-)
Lens positive supply
3
Drive coil negative (-)
Ground
4
Drive coil positive (+)
Video drive signal
Figure 2.  AID/AIV Lens Connector
CAMERA LAYOUT
Figure 1.  Camera Layout
Maximum load:
50 mA video auto iris lens
25 mA direct drive lens
Camera Connector