Powering On the T640 Router

1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
2. Switch the circuit breakers on one of the power supplies to the on position (|), and observe the LEDs on the power supply faceplate. If the power supply is correctly installed and is functioning properly, the DC OK LED lights steadily, and the CB ON LED blinks momentarily, then lights steadily.

   Note: After powering off a power supply, wait at least 60 seconds before turning it back on. After powering on a power supply, wait at least 60 seconds before turning it off. If the system is completely powered off when you power on the power supply, the Routing Engine boots as the power supply completes its startup sequence. After a power supply is powered on, it can take up to 60 seconds for status indicators—such as the output status LEDs on the power supply, the show chassis command display, and messages on the LED display on the craft interface—to indicate that the power supply is functioning normally. Ignore error indicators that appear during the first 60 seconds.

3. Repeat Step 2 for the remaining power supply.
4. On an external management device connected to the console or auxiliary port of the T640-CIP, monitor the startup process to verify that the system has booted properly.

Note: You do not need to reboot the TX Matrix router after the T640 router has booted.