4-1
4
Replacement procedures
WARNING!
•
When replacing FRUs while the router is operating, ensure electricity safety.
•
To avoid bodily injury and device damage, follow the procedure in this chapter strictly to replace a
module.
•
Long-time exposure to strong air flow might cause discomfort. To avoid this hazard, do not stand
close to the air outlet vents while the router is operating. If you must be next to the router on the
air outlet vent side for an extended period, avoid the air flow or take other protective measures.
The router uses a modular architecture, and supports removable components. You can replace the
removable components when the router is operating.
Replacing a power supply
WARNING!
•
Provide a circuit breaker for each power supply. Before replacing a power supply, turn off the
circuit breaker for it.
•
To reinstall the removed power supply in the chassis, wait until the status LED on it is off.
•
To avoid being hurt, allow a power supply to cool before removing it.
To avoid device damage and bodily injury, strictly follow the procedures shown in
to remove and install a power supply, respectively.
Figure4-1 Power supply removal procedure
Figure4-2 Power supply installation procedure
To replace a power supply:
1.
Prepare an antistatic mat to place the removed power supply.
2.
Turn off the circuit breaker.
3.
Wear an ESD wrist strap, and make sure it makes good skin contact and is reliably grounded.
4.
Remove the cable tie, and then remove the power cord connector from the power supply.
5.
Press the latch on the power supply towards the handle direction and pull the power supply part
way out of the slot.
6.
Holding the power supply handle with one hand and supporting the power supply bottom with
the other, pull the power supply slowly out of the slot.
7.
Place the removed power supply on the antistatic mat.
8.
Install a new power supply. For information about the power supply installation procedure, see
"Installing power supplies."
Turn off the circuit
breaker
Disconnect the power
cord
Remove the power
supply
Install the power
supply
Connect the power
cord
Turn on the circuit
breaker