FO-400/12
Combining Utah Scientific’s award-winning FO-400/12 and FI-400/12 flex cards with SFPs, the UTAH-400 Series 2 routers support fiber, A-D analog video, D-A analog video, HDMI, and DVI formats. You can mix and match any of the SFPs to create up to 12 inputs or outputs (in pairs) of mixed formats.
The FO-400/12 card’s fiber inputs receive optical signals and convert them to SDI; conversely, the outputs take SDI and convert it to optical signals. Both single- mode and multimode fiber is supported, making this capability especially useful on long cable runs.
The card can also convert composite analog video input signals to SDI, and the outputs can convert SDI signals to composite. This is especially valuable when switching a small amount of analog video. In the same manner, the card converts HDMI and DVI input signals to SDI and the outputs can convert SDI to HDMI or DVI. This is useful for adding monitors to the router. With these capabilities, together with Utah Scientific’s XFD fiber and coax distribution products, the router becomes the hub of a complete optical routing system.
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This card is used to drive differential pair signals out of the router to either Multi-Viewer systems of Fiber Optic SFPs on the rear panel of the router. It has integral Clock and Data Recovery circuits that operate on standard SMPTE Video frequencies and work to remove jitter from the signal.
Circuit Description
Signals enter this card from multiple crosspoint cards. The control signals from the Frame Communications module determine whether the output stage selects signals from the Primary or Redundant Crosspoint cards.
Once an input is selected, the output stage typically reclocks it unless the signal is not a standard SMPTEvideo frequency, and the signal is bypassed.
After the signal passes through the reclocker stage, it is presented to the rear panel where it may be connected to either a Fiber Optic Output rear panel or a Differential Pair rear panel.
Controls and Indicators
Controls:
– This card has a two-bank dipswitch with 16 total switches. Twelve of them are used to force a bypass condition on each of the 12 individual outputs (labeled as P1 through P12).
The other four dipswitch locations should remain placed toward their labeling on the PCB.
– P1 is a standard UT400 diagnostic port that provides detailed operational status and control for this card.
Indicators:
– Communications indicator – Yellow. Illuminated when the card has been addressed by the Frame Controller Module.
– Reclocker Locked LEDs (12) – Green. One of these LEDs is present on the front edge of the card for each input signal. They are labeled as ‘Locked’ 1 to 12. It is important to note that if the reclocker is bypassed, either manually or automatically, the signal could still be passing through the output if the LED is off.
– Redundancy selection LEDs (2) – These are two LEDs nearest the edge connector of the card that indicate which crosspoint the card is getting the signal from. DS15 is labeled P/R and indicatesthat the card is receiving signals from its redundant crosspoint when it is illuminated. DS16, labeled as N/I, indicates that output 0 of the card is receiving signals from its Mezzanine Level redundancy crosspoint card.
