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The 8-pin receptacle provides access to the circuitry of
the projector and allows for additional external control
and programming capability. Functions include forward
and reverse slide change, sensing of the zero tray
position when the shutter is closed and electrical
grounding. 8-contact or "DIN-type" 3 and 5
contact plugs may be used. 22.5 volts of isolated
power is available.
All circuits connected electrically to the projector
through this receptacle must have a rating of no
more than 30 V (rms) and must comply with
Underwriters Laboratories, Inc. low voltage, lim-
ited-energy circuit requirements.
1 and 3 (Zero Position Switch)
Connects to an internal single-pole, single-throw,
normally open switch. Contacts are closed when the
projector slide tray is at any position other than zero.
These leads connect only to the switch terminals. Do
not exceed a switching load of 1 A at 30 V ac.
4 and 5 (Shutter Switch)
Connects to an internal single-pole, single-throw
normally closed switch. Contacts are open when a
slide is in the projector gate and the shutter is open.
These leads connect only to the switch terminals. Do
not exceed a switching load of 1 A at 30 V ac.
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