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Chapter 2 System Component Descriptions 21
# Feature
10. Serial COM Connector: Provides two-way serial communication between the controller and
the host computer. Uses TAXI protocol. Contact the factory if an application requires use of
the optional fiber-optic data link to increase the maximum allowable distance between the
camera and the computer.
11. Fan: Cools the controller electronics. Runs continuously when the controller is turned on. Do
not block the side vents or the fan exhaust port.
12. Shutter Setting Selector: Sets the shutter hold voltage. Dial is correctly set at the factory
for the camera’s internal shutter if one is present. Refer to Table 1 for setting selection.
13. Remote Shutter Connector: Provides shutter-hold pulses for a 25 mm Princeton
Instruments-supplied external shutter (typically an entrance slit shutter).
WARNING:
Dangerous live potentials are present at the Remote Shutter Power
connector. To avoid shock hazard, the Controller power should be OFF when connecting
or disconnecting a remote shutter.
WARNING: If t
he camera has an internal shutter, then the Shutter Power connector should
not be used to drive a second external shutter. This configuration will result in under-
powering both shutters and may cause damage to the system In a system which requires
both an internal and an external shutter, use the Shutter signal (provided at the
connector when selected by an internal jumper or by software parameter selection) to
control the external shutter. Suitable driver electronics will additionally be required.
Contact the factory Technical Support Dept. for information.
14. Power Input Module: Contains the powercord socket and two fuses. Depending on the
ST-133 version, the power switch may be located directly above the power module.
15. Fuse/Voltage Label: Displays the controller’s power and fuse requirements. This label
may appear above the power module.
16. USB 2.0 Connector: Provides two-way serial communication between the controller and the
host computer. Uses USB 2.0 protocol.
WARNING
: Dangerous live potentials are present at the Remote Shutter Power
connector. To avoid shock hazard, the Controller power should be OFF when connecting
or disconnecting a remote shutter.
Shutter Setting* Shutter Type
1 25 mm Princeton Instruments supplied External shutter
(typically an Entrance slit shutter)
2 25 mm Princeton Instruments Internal shutter
4 35 mm Princeton Instruments Internal shutter (requires
70 V Shutter option), supplied with rectangular head
camera having 1300 × 1340 CCD
5 40 mm Princeton Instruments Internal shutter
* Shutter settings 0, 3, and 6-9 are unused and are reserved for future use.
Table 1. ST-133 Shutter Drive Selection