Powering Up the Router
108 7705 SAR-A Chassis Installation Guide
Powering Up the Router
Complete the steps in Wiring and Connecting the DC Inputs (or Wiring and Connecting AC
Power via the 100W High Voltage Power Supply for systems using an AC power source) and
SFPs before proceeding with the power-up and initialization instructions. The primary copy
of the 7705 SAR-A TiMOS software is located on the internal flash memory device.
Power-Up and Initialization
To power up the router, follow these steps:
Step 1. Turn ON the power to the router at the remote DC power source(s) to initiate the
boot process. For systems using AC power, plug the AC power converter into an
AC power source to initiate the boot process.
Step 2. Verify that the system is initializing.
The system searches the internal flash memory device for the boot.ldr file (also
known as the bootstrap or boot loader file). The Status (combined power and alarm
status LED) blinks green and the Ethernet Act (activity) LED blinks amber during
initialization. After initialization (approximately 30 s), the Status LED turns solid
green and the Ethernet Act LED turns solid amber.
If the LEDs do not operate as described above, or if they blink and turn off, refer to
Troubleshooting Initial Startup.
Step 3. Verify the operational status of the ports by checking the LEDs on the front of the
router. Refer to 7705 SAR-A Connectors and LEDs.
Step 4. After verifying the LEDs, establish communication with the router via the Console
port. Refer to Console Connection.
Note:
• The 7705 SAR-A does not have a power switch or circuit breaker. The system is
powered on by applying power from the AC or DC power source. For AC power
supplies, unplug the cord(s) to disconnect the system from the power supply. For DC
power supplies, use a circuit breaker or a disconnect device to disconnect the system
from the power supply.
• Configurations and executable software can be stored on the internal flash memory
device or at an FTP file location.
• You must have a console or Telnet connection to communicate with and provision the
7705 SAR-A. See Establishing Router Management Connections.
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