Nevion SDI-TD-3GMX-5 - Manual (Page 26)

HD-TD-3GMX-2 / HD-TD-3GDX-2 and SDI-TD-3GMX-5 / SDI-TD-3GDX-5 Rev. F
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7
Connections
7.1 Power connections
Power is applied to the board via the backplane board, which in turn is plugged into the
power distribution bus in the Flashlink rack.
The HD-TD-3GMX-2 and SDI-TD-3GMX-5 boards both consume 5.0 W of power from the
+5 V supply and 1.5 W of power from the +15 V supply.
The HD-TD-3GDX-2 and SDI-TD-3GDX-5 boards both consume 3.7 W of power from the
+5 V supply and 1.7 W of power from the +15 V supply.
For all boards, this means that some power supplies will limit the number of
cards per frame to less than 10 (a fully populated frame). Check the power
ratings of the supply you plan to use!
7.2 Backplane
All cards mentioned in this manual use the same backplane. The direction of each BNC
port will depend on whether it is used with a multiplexer or a de-multiplexer board.
Table below shows the signal directions for the SDI-TD-3GMX-5 board, with the directions
for the SDI-TD-3GDX-5 in parentheses.
The GPI I/Os consists of alarm signals for driving external alarm devices and one input to
disable the laser output for the SDI-TD-3GMX-5/HD-TD-3GMX-2. See chapter 7.2.1.
Figure 11: The backplane, common for all cards mentioned in this manual.