3Com DSA-3CV1100-02 service manual Installing the VCN Access Concentrator, Safety Precautions

INSTALLING THE VCN ACCESS

2 CONCENTRATOR

This chapter contains safety precautions, information needed for installing the VCN AP punch-down block, and instructions on how to mount, install, and connect the VCN AC.

This chapter includes the following topics:

■Safety Precautions

■Preparing the Site for the VCN Access Concentrator

■Installing the VCN Access Concentrator

■Powering Up the Ethernet Switch

■Powering Up the VCN Access Concentrator

■Troubleshooting

Safety Precautions

WARNING: Do not plug in, turn on or attempt to operate an obviously damaged unit.

CAUTION: All servicing should be undertaken ONLY by qualified service personnel. there are no user serviceable parts inside the unit.

WARNING: Be sure to unplug the power supply cord from the wall socket BEFORE attempting to remove and/or replace the power supply.

CAUTION: Do not operate the unit in location where the maximum ambient temperature exceeds 40 degrees C.

CAUTION: Ensure that the chassis ventilation openings in the unit are not obstructed.