Introduction
The FM-1600 Fiber Optic Multiplexer is in essence a two-pole, eight position fiber optic switch. It is
intended to be used in FTIR spectroscopic applications to select any one of eight optical sampling
regions and interpose it in the interferometer optical path. Switching both ends of the optical path
eliminates the spurious spectral distribution problems encountered when using fiber optic bundle source
distribution to sampling regions. The unit may be operated from its front panel controls or by means of
a serial computer interface. The standard interface is Rs-232. Optional modules are available to inter-
face with Rs-422 or Rs-485 systems. Up to 100 unique serial addresses may be assigned to the unit for
use with Rs-485 controllers.
Page-2
