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2-10
Installing fan trays
CAUTION:
•
The router has 33 fan tray slots at the chassis rear, arranged in 11 rows with three fan trays in
each row. To ensure good ventilation, install a fan tray in each fan tray slot.
•
Before powering on the router, make sure all fan tray slots are correctly installed with fan trays.
•
The fan trays in the top four rows (FAN 1 to FAN 12), in the middle three rows (FAN 13 to FAN
21), and in the bottom four rows (FAN 22 to FAN 33) power up after a three-second delay,
two-second delay, and four-second delay, respectively upon power-up of the router. Before a fan
tray powers up, its OK/FAIL LED is red.
•
The router uses N+1 fan tray redundancy. When a fan tray fails, the router can dissipate heat
normally. However, replace the faulty fan tray immediately as a best practice.
To install a fan tray:
1.
Wear an ESD wrist strap.
2.
Correctly orient the fan tray (with the lettering on it upward) and align the fan tray with the fan
tray slot.
3.
Grasp the handle of the fan tray with one hand and support its bottom with the other, and
steadily insert the fan tray way into the slot.
Figure2-8 Installing a fan tray
Содержание CR19000-20
Страница 11: ...1 5 Figure1 1 Chassis dimensions...
Страница 39: ...2 9 Figure2 7 Securing the router to the rack...
Страница 61: ...4 2 Figure4 1 Slot arrangement...
Страница 84: ...6 5 Figure6 4 Installing an air filter...
Страница 97: ...8 9 Figure8 9 Removing a fan tray...
Страница 103: ...8 15 Figure8 18 Securing the new power tray...
Страница 131: ...11 7 Figure11 8 Routing AC power cords...
Страница 132: ...11 8 Figure11 9 Routing DC power cords...
Страница 139: ...12 6 Figure12 3 Packing component positions...