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Installation SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide
Applying Power
The SmartStack STS16-20D/STS16-20R chassis does not have an on/off switch.
Power is on when the unit is plugged into a power source
.
There are no user serviceable parts inside an SmartStack STS16-20D/STS16-20R.
Any internal upgrades or service should be performed by qualified personnel
only
.
➽ Caution
: If you are using the STS-PSU Redundant Power Supply Unit on STS16-
20R, note that this unit is
not
hot-swappable. You must
turn off
the STS-PSU
Redundant Power Supply Unit and the switch before connecting or disconnecting
the DC power cable.
➽ Warning:
Unplug the power cord before you work on a system that does not have
an on/off switch.
➽ Warning:
When installing the unit, the ground connection must always be made
first and disconnected last.
➽ Warning:
This equipment is intended to be grounded. Ensure that the host is
connected to earth ground during normal use.
Use the following steps to power on your equipment.
1. Ensure that you are using the correct power source.
2. Using a power cable that complies with national regulations, plug the female
end of the cable into the AC power connector on the back panel of the switch
(see Figure 21 or Figure 22).
3. Plug the male end of the power cord(s) into a properly grounded electrical
outlet.
Figure 21. The back panel of the STS16-20D