Cabletron Systems STS16-20D User Manual

Preparing for Installation

SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide

Before installing the SmartStack STS16-20D/STS16-20R, read this chapter 
carefully.

Follow these guidelines to ensure general safety during and after the installation:

•

Keep the chassis area clear and dust-free during and after installation.

•

Keep tools away from walk areas where you and others could trip over them.

•

Do not perform any action that creates a potential hazard to people or makes 
the equipment unsafe.

Follow these guidelines when working on equipment powered by electricity.

➽

 Do not open the switch. Dangerous voltage inside.

➽

 To avoid shock hazard, the power cord must be connected to a properly 

wired and earthed receptacle. Any equipment to which the switch will be attached 
must also be connected to properly wired and earthed receptacles.

➽

 Before working on equipment that is connected to power lines, remove 

jewelry (including rings, necklaces, bracelets and watches). Metal objects will heat 
up when connected to power and ground and can cause serious burns or weld the 
metal object to the terminals.

➽

 Do not work on the system or connect or disconnect cables during 

periods of lightning activity. Read the installation instructions before you connect 
the system to its power source.

To turn off the switch, you must disconnect the power cord; there is no on/off 
switch. ON/OFF switch. Note that if the switch is connected to an external 
Redundant Power Supply Unit (RPSU), the power cord must be removed from both 
units.

•

Locate the emergency power-off switch for the room in which you are 
working. Then, if an electrical accident occurs, you can act quickly to turn off 
the power.