Grass Valley NV8500 Series v.3.5 - Manual (Page 86)

70
Crosspoints
Installing Crosspoint Cards
NV8280, NV8576, or NV8576-Plus
Crosspoint cards in the NV8280 and NV8576 must be installed in pairs: slots 1 and 2, slots 3 and
4, slots 7 and 8, or slots 9 and 10. For example, you could install crosspoint cards in slots 1 and 2,
but not in slots 1 and 3.
For a stand-alone NV8576-Plus, the requirements are different. You need only those crosspoint
cards that support the slots in which I/O cards are installed.
However, if your router is an expanded NV8576-Plus (i.e, two frames), then crosspoint cards
must be paired to support inter-frame communication.
Install Crosspoint Cards in the NV8280, NV8576, or NV8576-Plus
1 Face the front of the router frame.
For the NV8280, the crosspoint card slots are at the bottom of the frame. See Figure 1-8 on
page 11.
For the NV8576 and the two frames of the NV8576-Plus, the crosspoint card slots are located
in the middle of the frame. See Figure 1-10 on page 14.
2 Insert crosspoint cards in slots. The slots have black guides. From the front of the router
frame, the crosspoint card slots are numbered 1 through 10, from left to right.
Fig. 3-4: NV8280 Crosspoint Card Slots (Front View)
3 Crosspoint cards must be installed in adjacent pairs (In the NV8280 and NV8576). If your
NV8280 or NV8576 is not fully populated with I/O cards, you might not need a full comple-
ment of crosspoint cards. Install crosspoint cards in adjacent pairs:
Slots 1 and 2
Slots 3 and 4
Slots 7 and 8
Slots 9 and 10
according to the I/O cards they must switch.
CAUTION
Do not drop, roughly handle, or stack circuit boards. If you cannot easily
insert or remove a board, stop and contact Grass Valley Technical Support.
NV8280
144 X 144
3Gig
Redundant
XPT
STANDBY
PATH LITE
ALARM
ACTIVE
POWER
REDUNDANT OPERATION
1 7
2 8
3 9
4 10
NV8500 NV8500 NV8500 NV8500 NV8500 NV8500 NV8500 NV8500 NV8500
1 2 3 4 7 8 9 10 5 6