Crystal Vision
Introduction
The Indigo frames have been designed to accept any selection of boards from Crystal
Vision's range of Standard Definition, High Definition, 3G audio, video and optical products.
The high packing density allows up to six modules in 1U, up to 12 modules in 2U, and up to
two modules in the desk top box.
The main features of the FTX-L 3G are as follows:
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2 channel 3G/HD/SD serial digital optical transmitter
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Handles pathological test pattern
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1310nm class 1 compliant two channel laser module
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LED SDI input present indication
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Indication of laser near end of life and shutdown
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Automatic and manual laser shutdown
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Single-mode fibre system
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Assignable input loop-throughs
FTX-L 3G
The two identical channels of the FTX-L 3G optical transmitter are completely independent of
each other. Each channel consists of a serial digital input section, which equalises the input
signal for cable length, a driver module and laser diode. Both channels are under the control
of a CPU, which monitors and reports their status. An added feature of the FTX-L 3G are its
assignable input loop-throughs. These can be assigned as Input 1 and Input 2 input loop-
throughs or both loop-throughs can be assigned to input 1.
At the heart of the FTX-L 3G is a two-channel state-of-the-art laser driver module
incorporating automatic power control, which gives the laser diode emitters a stable
performance throughout their lifetime. Safety circuitry within the laser module monitors the
operation of the laser driver and forces a shutdown should any critical parameters be
exceeded. Warning is also given once the laser is considered to have reached near to the
end of its expected lifetime. This warning is triggered after approximately 85% of its expected
lifetime has expired.
FTX-L 3G dual channel 3G/HD/SD optical transmitter
FTX-L 3G User Manual R1.2
4
19 May 2017
