3Com DIA3CV1100-02 manual Installing the VCN Access Concentrator

16Visitor and Community Network Access Concentrator Installation Guide

Installing the VCN

Access

Concentrator

Mounting the VCN

Access Concentrator

in the 19-inch Rack

Before installing the VCN AC make sure that:

■The unit is accessible and can be connected easily.

■Cabling is away from:

■Sources of electrical noise such as radios, transmitters and broadband amplifiers

■Power lines and fluorescent lighting fixtures

■Water or moisture cannot enter the case of the unit.

■Air-flow is not restricted around the unit or through the vents in the side of the switch. Make sure you provide a minimum of 2.5 cm (1 inch) clearance between the Ethernet switch and the VCN AC

It is recommended to have a ventilated or air conditioned room.

■The VCN AC is within cable reach of both the patch panel and the Ethernet switch for which the unit is to be attached.

Table 2 lists the accessories needed for mounting the VCN AC in the 19-inch rack.

Table 2 The VCN Access Concentrator Accessory Set

No.	Part	Quantity
1	VCN AC unit	1
2	19-inch brackets	2
3	Handles	2
4	Screws for handles	4
5	Screws for brackets	8

In addition to the VCN AC unit, you will find a box containing the cable kit needed to install the VCN AC.

Table 3 lists the cable kit parts.

Table 3 The Cable Kit

No.	Part	Quantity
1	Power Cord	1
2	UTP CAT-5 Patch Cords	24
3	Flat cables (1.5 m each) with	2
	RJ-21 connectors