2-9
Weld the yellow-green grounding cable to the angel iron or steel tube and treat the joint for corrosion
protection.
Figure 2-12 Grounding the switch by burying the grounding conductor into the earth ground
(1) Grounding screw
(2) Chassis rear panel
(3) Grounding cable
(4) Earth
(5) Welding point
(6) Grounding conductor
Installing and removing a fan tray
CAUTION:
•
You can power on the switch only when the switch has two fan trays of the same model installed.
•
Do not leave any slots empty when the switch is operating. Install a module or filler panel in the
slots.
•
If both fan trays fail while the switch is operating, replace them within 2 minutes.
•
If one fan tray fails while the switch is operating, perform either of the following tasks:
{
If the ambient temperature is not higher than 27°C (80.6°F), replace the fan tray within 24 hours and
make sure the failed fan tray is in position before the replacement.
{
If the ambient temperature is higher than 27°C (80.6°F), replace the fan tray immediately.
•
If you power cycle the switch after a fan tray fails, the switch will fail to start up.
The switch comes with empty fan tray slots. It supports the LSWM1FANSCE and LSWM1FANSCBE
fan trays.
•
The LSWM1FANSCE fan tray provides power module-side intake and port- and chassis-side
exhaust airflows. The fan tray handle is blue.
•
The LSWM1FANSCBE fan tray provides port- and chassis-side intake and power module-side
exhaust airflows. The fan tray handle is red.
Select the LSWM1FANSCE or LSWM1FANSCBE fan trays for the switch based on the ventilation
requirements at the installation site.
Installing a fan tray
1.
Wear an ESD wrist strap. Make sure the strap makes good skin contact and is reliably
grounded.
2.
Unpack the fan tray and verify that the fan tray model is as required.
