Hirschmann PowerLION-24TP, Руководство по установке

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3-8
Installing the Switch
3
Stacking Topologies
All units in the stack must be connected via stacking cable. You can connect units in
a simple cascade configuration, connecting Up ports to Down ports, from the top unit
to the bottom unit. Using this “line” topology, if any link or unit in the stack fails, the
stack splits and two separate segments are formed. The Stack Link LEDs on the
units that are disconnected flash to indicate that the stack link between them is not
functioning (see Table 1-2 “System Status LEDs” on page 1-5).
When a stack link failure occurs, the stack reboots and a Master unit is selected
within each of the two stack segments. The Master unit will be either the unit with the
Master button depressed or the unit with the lowest MAC address if the Master
button is not depressed on any unit. When the stack reboots and resumes
operations, note that the IP address will be the same for both of the stack segments.
To resolve the conflicting IP addresses, you should manually replace the failed link
or unit as soon as possible. If you are using a wrap-around stack topology, a single
point of failure in the stack will not cause the stack to fail. It would take two or more
points of failure to break the stack apart.
If the Master unit fails or is powered off, the Backup unit will take control of the stack
without any loss of configuration settings. The Slave unit with the lowest MAC
address is selected as the Backup unit.
Connecting to a Power Source
To connect a device to a power source:
1. Insert the power cable plug directly into the receptacle located at the back of
the device.
Figure 3-8 Power Receptacle
2. Plug the other end of the cable into a grounded, 3-pin socket.
Note: For International use, you may need to change the AC line cord. You must
use a line cord set that has been approved for the receptacle type in your
country.
3. Check the front-panel LEDs as the device is powered on to be sure the Power
LED is lit. If not, check that the power cable is correctly plugged in.
4. If you have purchased a Redundant Power Unit, connect it to the switch and to
an AC power source now, following the instructions included with the package.
100 -240V~
50-60Hz 2A