Grass Valley NV8500 Series v.3.5 - Manual (Page 87)

71
NV8500 Series
User’s Guide
For a stand-alone NV8576-Plus, you need only those crosspoint cards that support the slots
in which I/O cards are installed. If your router is an expanded NV8576-Plus (i.e, two frames),
then crosspoint cards must be paired to support inter-frame communication
4 Insert the optional redundant crosspoint in crosspoint card slots 5 and 6. (The redundant
crosspoint has two cards.)
5 For all cards, press the ejector levers inward, making sure each card is fully seated in its slot.
6 Close the frame door after the cards have been installed. The door must be closed for the
router cooling system to work properly.
Redundant Crosspoint Functions
By default, the redundant crosspoint module operates in standby mode. It is intended to
assume the operation of any single crosspoint card that fails. However, an operator can choose,
at any time, to have one of the crosspoint card slots placed in standby mode and have the
redundant crosspoint card take over active control of that card’s inputs and outputs. The oper-
ator might, for example, want to swap out a crosspoint card.
Each of the redundant crosspoint modules has one or more buttons at its front. The use of the
buttons varies with the router.
Manual NV8140 Switchover
The NV8140 has 3 crosspoint card slots. As viewed from the front of the router, slot 1 is on the
left, the redundant crosspoint card is in slot 2, and slot 3 is on the right:
Usually, the normal crosspoint cards are active and their active LEDs are on and the redundant
crosspoint card is in standby mode, its ‘Active’ LED is off, and its ‘Standby’ button is bright.
If the card in slot 1 fails or you want to remove it from the frame, press the button labeled 1 on
the redundant crosspoint card. Immediately, the redundant card takes over for the card in slot 1.
If the card in slot 1 is still powered up, its ‘Active’ LED turns off. The redundant card’s active LED
turns on, the button labeled 1 turns bright, and the ‘Standby’ button turns dim.
1
3
ALARM
ACTIVE
POWER
ALARM
ACTIVE
POWER
ALARM
ACTIVE
POWER
REDUNDANT OPERATION
REDUND
ANT
OPER
A TION
ST
ANDB
Y
REDUNDANT OPERATION
PATH
LITE PATH
LITE
PATH
LITE
Redundant card
standby; both
crosspoint cards
active Redundant card
active, substitut-
ing for crosspoint
card 1 Redundant card
active, substitut-
ing for crosspoint
card 3