Juniper EX2500-RMK-4POST ユーザーズマニュアル
EX2500 Ethernet Switch Hardware Guide
18
Connecting Power to the EX2500 Ethernet Switch
Connecting Power to the EX2500 Ethernet Switch
The EX2500 Ethernet Switch has two AC power supplies, each with its own IEC 320
power connector. When connected to separate AC circuits, the dual power supplies
share the power load to mitigate the risk of down time during a power failure. To
connect power to the switch:
power connector. When connected to separate AC circuits, the dual power supplies
share the power load to mitigate the risk of down time during a power failure. To
connect power to the switch:
1.
Connect one AC power cord to one of the two IEC 320 power connections on
the rear panel of the switch, and connect the second power cord to the other
IEC connector.
the rear panel of the switch, and connect the second power cord to the other
IEC connector.
2.
If the AC power source outlets have a power switch, set each outlet switch to
the OFF (0) position.
the OFF (0) position.
3.
Insert one power cord into one AC power source outlet, and then insert the
second power cord into an AC power source on a separate circuit.
second power cord into an AC power source on a separate circuit.
If the outlet does not have a power switch, the switch powers on immediately.
4.
If the AC power source outlets have a power switch, set each outlet switch to
the ON (|) position.
the ON (|) position.
The switch powers on immediately.
5.
Verify overall system status:
SYS—Must be solid green if both power cords are connected, or blinking
green if only one power cord is connected
green if only one power cord is connected
FAN—Must be solid green if all fans are running.
Initializing the EX2500 Ethernet Switch
When you plug in an EX2500 switch power cord, the switch initializes
automatically.
automatically.
Use the mini-USB console cable to connect the RS-232 serial (CON) port on the
switch unit’s front panel to a terminal or a PC running a terminal emulation
program. You can access the command-line interface (CLI) to perform initial
configuration tasks.
switch unit’s front panel to a terminal or a PC running a terminal emulation
program. You can access the command-line interface (CLI) to perform initial
configuration tasks.
WARNING:
The EX2500 switch does not have a power switch. When you connect
one of the two power cords to a suitable, energized AC power outlet, the switch
powers on immediately. You must disconnect the power cords to power off the
EX2500 switch. Always connect each power cord to a universal grounded power
source in a location that is quickly and safely accessible.
powers on immediately. You must disconnect the power cords to power off the
EX2500 switch. Always connect each power cord to a universal grounded power
source in a location that is quickly and safely accessible.
CAUTION:
A blinking green FAN LED indicates a fan failure. Contact Juniper
Networks technical support.