Grass Valley NV8500 Series v.3.5 - Manual (Page 85)

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NV8500 Series
User’s Guide
Outputs 577–864 are distributed by crosspoint cards 1 and 3 in frame 1, and 2 and 4 in frame 2.
Outputs 865–1152 are distributed by crosspoint cards 7 and 9 in frame 1 and 8 and 10 in
frame 2.
As for the NV8576, the redundant crosspoint module is in stand-by mode under normal opera-
tion; it does nothing unless one of the normal crosspoints fails.
If fail-over is automatic and a normal crosspoint card fails, the frame’s control card causes the
redundant card to take over for the failed card. When the redundant card becomes active, it
sends its outputs to the output cards normally supported by the failed crosspoint card.
Installing Crosspoint Cards
NV8144
The NV8144 has one (primary) crosspoint card slot and one redundant crosspoint card slot. The
cards are installed in the two available slots. If you are facing the front of the router, the primary
slot is on the right, the redundant slot is on the left.
Installing Crosspoint Cards in the NV8144
1 Face the front of the router frame. The crosspoint card slots are located between the output
card slots and input card slots, in the middle of the frame. See Figure 1-4 on page 7.
2 Insert the primary crosspoint card in the right slot of the two. The slots have black card
guides. The redundant crosspoint card is optional. For each card, press the ejector levers
inward, making sure each card is fully seated in its slot.
3 Close the door after the cards have been installed. The door must be closed for the router
cooling system to work properly.
NV8140
The NV8140 has 2 (primary) crosspoint card slots and one redundant crosspoint card slot. The
redundant crosspoint card goes in the middle slot.
Installing Crosspoint Cards in the NV8140
1 Face the front of the router frame. The crosspoint card slots are located between the output
card slots and input card slots, in the middle of the frame. See Figure 1-6 on page 9.
2 Insert primary crosspoint cards in the left and right crosspoint slots. The slots have black
card guides. The redundant crosspoint card is optional and goes in the middle slot. For each
card, press the ejector levers inward, making sure each card is fully seated in its slot.
3 Close the door after the cards have been installed. The door must be closed for the router’s
cooling system to work properly.
 The crosspoint card slots for the NV8140 are narrower than the crosspoint slots for the
NV8144. Do not attempt to install the older (and now obsolete) EM0799 or EM0819 cross-
point cards in the NV8140. Physical damage will result.