Toshiba IK-528A - Manual (Page 8)

(3) When using the auto IRIS lens (with amplifier):
(a) Set the slide switch (on rear panel) to VIDEO position.
(b) Connect the Al iens cable to the IRIS connector on left side of camera.
(4) When using the auto IRIS lens (without amplifiter):
(a) Set the slide switch (on rear panel) to DC position.
(b) Connect the auto IRIS lens cable to the IRIS connector on left side of
camera.
NOTE : Please refer to the pin definitions and figure shown below to
ensure correct operation.
IRIS pin definitions
VIDEO DC
1 + 12V DAMP - (y)
2 NC damp + (r)
3 VIDEO DRIVER + (wh)
4 GND DRIVER - (g)
( 5. OPERATION PROCEDURE : )
(1) Before operation make sure the power source is correct for your camera.
(2) Install lens to the camera.
(3) Connect the VIDEO output to the Video monitor. The picture will appear on the
monitor screen as the power is supplied to the camera.
(4) Adjust the focus and aperture of the lens to get a best quality image.
(5) Back focus adjustment:
In general, the back focus is calibrated in the factory. So readjustment is
unnecessary. But depending on your application, back focus readjustment may
be necessary. In this case, set the focus ring of the lens to the oo position and
take a picture at a distance of 20m or more. Then, loosen the focus lick screw
and turn the focus ring till the picture on the monitor is in focus. Now tighten the
focus lock screw.