Grass Valley NV8500 Series v.3.5 - Manual (Page 90)

74
Crosspoints
Redundant Crosspoint Functions
Manual N V8576 and NV8576-Plus Switchover
The NV8576 has 10 crosspoint card slots. As viewed from the front of the router, slot 1 is on the
left and slot 10 is on the far right. The redundant crosspoint module occupies the two middle
slots, numbered 5 and 6:
The normal crosspoints are numbered 1–4 on the left and 7–10 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.
Each frame of the expanded NV8576-Plus has the same arrangement of crosspoint cards as the
NV8576 (shown above).
If one of the normal cards (for instance, in slot 2) fails or you want to remove it from the frame,
press the corresponding button (labeled 2) on the redundant crosspoint card. Immediately, the
redundant card takes over for the card in slot 2. If the card in slot 2 is still powered up, its ‘Active’
288 X 288
3Gig
Redundant
XPT
NV8500
ALARM
ACTIVE
POWER
1
2
3
4
7
8
9
10
STANDBY
PATH
LITE
REDUNDANT OPERATION