3Com 10/100BASE-TX, 100BASE-FX quick start ESD Safety Information

410-Port 100BASE-FX and 20-Port 10/100BASE-TX Fast Ethernet Layer 2 Switching Modules Quick Start Guide

ESD Safety Information

Electrostatic discharge (ESD) can damage components of the module. ESD, which occurs when a module is improperly handled, can cause complete or intermittent failures.

CAUTION: To prevent ESD-related damage:

■ Always wear an ESD wrist strap (not provided) when you handle a module, ensuring that the strap makes good skin contact and is properly grounded.

■Keep the module in its antistatic bag until you are ready to install it.

Handling Precautions When you handle a module, follow these precautions:

■Always handle the module by the front panel only.

■Do not touch the components, pins, leads, or solder connections.

■Do not twist or otherwise force the module into the chassis when you insert it into the module guides.

■Before you push the module into the chassis, verify that the module ejector handles are open.

■When you slide the module into the 7-slot chassis, match the left and right module guides. In the 8-slot chassis or 16-slot chassis, match the upper and lower module guides.

For details, see “Installation Prerequisites” and “Installing the Module” later in this guide.