Cisco XR 12406 - Manual (Page 121)

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Cisco XR 12406 Router Installation Guide
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Chapter 3 Installing the Cisco XR 12406 Router
Powering On the Router—First Time
Step 2 Power on the router by switching on all the circuit breakers and/or plug the power
cord into an active power source that controls power to the router’s AC PEM or
DC power distribution unit (PDU).
Step 3 You should observe the following LED confirmation:
• For a router equipped with AC-input power supplies:
– Green LED labeled AC—When the power module is fully seated in its
bay and is receiving source power within the required range, this LED
should be on. It indicates that AC power is present and is within specified
limits. The power supply fan should also be on.
– Green LED labeled DC—Power supply is operating normally in a
powered-on condition.
• For a router equipped with DC-input PEMs:
– Green LED labeled INPUT OK—When the power module is fully seated
in its bay and is receiving source power within the required range, this
LED should be on. It indicates that DC power is present and is within
specified limits. The power supply fan should also be on.
– Green LED labeled OUTPUT OK—DC-input PEM is operating normally
in a powered-on condition.
– Amber LED labeled MISWIRE—Should be off. When it is on, it
indicates that the input is wired backward at the PDU input.
Step 4 Visually check the two LEDs on the front of the blower module at the back of the
router:
• Green LED labeled OK—Should be on
• Red LED labeled FAIL—Should be off
Step 5 Listen for the blowers in the blower module; you should immediately hear them
operating.
Note In a noisy environment, the blowers might be difficult to hear; in that case,
place your hand in front of the exhaust vents at the rear of the chassis to
verify that the blowers are operating.