Juniper Networks M5 - Manual (Page 122)

Replace Power System Components
Disconnect AC Power from the Router
To disconnect AC power from the router, follow this procedure:
1. On the console or other management device connected to the Routing Engine, enter CLI
operational mode and issue the following command to shut down the router software
cleanly and preserve Routing Engine state information.
user@host> request system halt
Wait until a message appears on the console confirming that the operating system
has halted.
For more information about the command, see the JUNOS Internet Software Operational
Mode Command Reference: Protocols, Class of Service, Chassis, and Management.
2. Press the power switch on each power supply faceplate to the OFF (O) position.
3. Unplug the power cord from each power supply.
When multiple AC power supplies are installed in the chassis, each power
cord (one for each power supply) must be unplugged to disconnect power
completely.
Connect AC Power to the Router
To connect AC power to the router, follow this procedure:
1. Verify that the power supplies are fully inserted in the chassis and the thumbscrews on
their faceplates are tightened.
2. For each power supply, verify that the ends of the power cord are firmly plugged into the
appliance inlet on the power supply faceplate and the external power source receptacle.
3. Connect a management device to one of the ports on the craft interface (AUX/MODEM,
CONSOLE, or MGMT). For more information on connecting management devices, see
“Replace Connectors to Routing Engine Interface Ports” on page 118.
4. Turn on the management device.
102 M5 and M10 Internet Routers Hardware Guide