3.3 Operation Using the Light Engine Control Pod
1. Move the master power switch on the lower left of
the SPECTRA rear panel (Figure 5) to the ON
position. A green LED next to the switch indicates
that power to the light engine is ON.#
2. Connect the USB A port of the light engine control
pod accessory (83-10007) to the RS-232 port on
the SPECTRA (Figure 5) using the USB-to-RS-232
cable (29-10011). Connect the USB B port of the
control pod to a USB A port on a host computer
[1].#
3. Press and hold the right button on the pod until a
menu of light engines appears. Turn the rotary dial
to select “SPECTRA” from the menu. Press the right button again to return to the main (0–
100 analog intensity) display screen.#
4. Before turning the light output on, be sure the output end of the light guide or optical fiber is
safely directed into an enclosed optical path (e.g. microscope input collimator or a beam
dump).#
5. Press the left button to select the desired color channel. Successive presses will cycle
through the available color channels.#
6. Press the right button to turn the selected light source on [2]. Adjust the output intensity
using the rotary dial [3,4]. Press the right button again to turn the selected light source off.#
7. Press and hold the left button to view a digital rendition of the intensity setting [5]. Press the
right button to return to the main display screen.#
8. Serial commands sent from a host computer to the USB B port of the control pod will
automatically switch the pod from local to pass-through mode, indicated by the message “PC
pass through mode active” shown on the pod display screen. Local command mode is
disabled as long as pass-through mode remains active.#
9. To quit pass-through mode and return to local command mode, press the right button on the
pod twice.#
10.Further details of control pod operation are available at Lumencor’s Operating Instructions
site.#
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