3Com DSA-3CV1001-02 User Manual

Visitor and Community Network Access Point Service Manual

Release 2.0

http://www.3com.com/

Part No. DSA-3CV1001-02 Published August 2000

3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145

Copyright © 2000, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as a “commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide.

3Com, the 3Com logo, and SuperStack, are registered trademarks of 3Com Corporation. 3Com Facts is a service mark of 3Com Corporation.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

Procomm Plus is a registered trademark of Datastorm Technologies, inc., a subsidiary of Quarterdeck corporation. All other company and product names may be trademarks of the respective companies with which they are associated.

All other company and product names may be trademarks of the respective companies with which they are associated.

Guide written by Ruth Zach and Ronald Schwarz. Illustrated by Pearl Goldberg and Ronald Schwarz. Produced by 3Com corporation.

BOUT THIS

This guide describes the 3Com® Visitor and Community Network Access Point Release 2.0, its installation, operation, management, and troubleshooting.

The NAU (Network Access Unit) name has been changed in release II and is referred to as Visitor and Community Network Access Point.

This guide is intended for technicians who install or service the VCN Access Point at customer sites.

If release notes are shipped with your product and the information there differs from the information in this guide, follow the instructions in the release notes.

Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com World Wide Web site:

http://support.3com.com/

UIDE

Conventions

Ta b le 1 and Ta bl e 2 list conventions that are used throughout this guide.

Ta b le 1

Icon Notice Type Description

Notice Icons

Information note Information that describes important features or

instructions

Caution Information that alerts you to potential loss of data or

potential damage to an application, system, or device

Warning Information that alerts you to potential personal injury

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BOUT THIS GUIDE

: A

Year 2000 Compliance

Visitor and Community Based Networking Access Point Service

■

Manual

Visitor and Community Based Networking Access Concentrator

■

Service Manual

Visitor and Community Based Networking Access Point Mounting

■

Guide

Visitor and Community Based Networking Access Concentrator

■

Installation Guide

For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page:

http://www.3com.com/products/yr2000.html

ONTENTS

BOUT THIS GUIDE

Conventions 3 Related Documentation 4 Year 2000 Compliance 4

VERVIEW

Visitor and Community Network Major Features and Benefits 9

Features 9

Benefits 10 Visitor and Community Network Applications 11 VCN Access Point Features 12

Operational Controls 14

AFETY INFORMATION

Safety Precautions 17 Précautions de sécurité concernant le VCN Access Point 18 Sicherheitsvorkehrungen für den VCN Access Point 18

NSTALLING AND OPERATING THE

Prerequisites for Installation 21 Installing the VCN Access Point 22

Mounting the VCN Access Point on a Wall 23

Mounting the VCN Access Point Under a Table 27

Placing the VCN AP on Top of a Table 32

Connecting the VCN AP 33 Operating the VCN Access Point 35

Making a Voice Call 35

Sending and Receiving Data Traffic 36

Sending and Receiving Faxes 36

VCN A

CCESS POINT

SING THE LOCAL MANAGEMENT ACCESS

Using the Management Terminal 37

Management Terminal Requirements 37 Connecting the PC Terminal Emulator 38

VCN Access Point Menus 38

Summary and Structure of the Menus 38 Login 40 Access Point Main Menu 41 AP Version 42 Management Menu 42 The Ethernet Menu 42 The HDLC Menu 48 Reset All Counters 51 Reset the Board 51 VDSL Menu 53 AP Configuration Menu 55 Closing the Local Management Interface 57

Remote Software Download 58

Overview 58 Requirements 58 Procedure 58 Solving Problems in Remote Software Download 67

ROUBLESHOOTING

Power-on Self Test (POST) 69 Using Front Panel LEDs to Solve Problems 70 Using a PC Terminal Emulator to Solve Problems 74

Ethernet Traffic Counts 75 HDLC Traffic Counts 75 Summary of Abnormal Indications from Traffic Counts 76 Error Messages 76

RODUCT SPECIFICATION

OADING SOFTWARE THROUGH LOCAL ACCESS

PIN A

Connector for Local Management Terminal 89

Local Management Cable Wiring 91

Defining the Terminal Emulation Settings 93 Establishing Terminal Settings 94

Online Technical Services 97

Support from Your Network Supplier 99 Support from 3Com 99 Returning Products for Repair 101

SSIGNMENTS FOR

Connector for the LMA Port of the VCN AP 90

ERMINAL EMULATION SETTINGS

Using the Configuration Bar 94

Using the Menu Bar 95

ECHNICAL SUPPORT

World Wide Web Site 97

3Com Knowledgebase Web Services 97

3Com FTP Site 98

3Com Bulletin Board Service 98

3Com Facts Automated Fax Service 99

LMA C

ABLE

NDEX

3COM C

EMC S

AFETY STATEMENT

ORPORATION LIMITED WARRANTY

TATEMENTS

VERVIEW

This chapter provides an overview of the Visitor and Community Network Access Point.

The chapter includes the following topics:

■ Visitor and Community Network Major Features and Benefits

■ Visitor and Community Network Applications

■ VCN Access Point Features

Visitor and Community Network Major Features and Benefits

Features

A Visitor and Community Network system (VCN) consists of a Access Concentrator (VCN AC) and up to 24 VCN Access Points (VCN AP) connected by conventional 4-wire telephone cables.

The following are the major features of the Visitor and Community Network system:

The Visitor and Community Network system works over existing

■

cabling infrastructure and supports all Plain Old Telephone Services

(POTS) while simultaneously providing Ethernet connectivity at speeds

up to 10 Mbps full duplex.

The Visitor and Community Network system’s geographic range is 4

■

kilo feet from an VCN AP to an VCN AC over Category 1 to Category

5 cabling.

The system supports Ethernet 802.1Q frames transparently. The

■

maximum supported frame length is 1536 bytes.

■ The customer can simultaneously engage in two analog toll quality

conversations while sending high speed digital data on the POTS

cable.

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The system provides fast Internet connectivity and fast corporate

■

access to end-users.

Benefits

The Visitor and Community Network system provides the following benefits:

Use existing wiring for simultaneous voice calls and data connections

■

without the need for re-wiring. The system enables a customer to use a telephone extension to place calls while sending and receiving digital data over the same cable. A second extension over the same telephone cable can be used to place another call, send faxes, or connect an analog modem.

The customer receives Internet services more conveniently at faster speeds. Hotel guests traveling on business can access corporate Intranets and use e-mail over much more convenient connections than is currently possible.

The system allows a hotel to provide new data communication services without forfeiting any POTS revenues.

The system’s ready-to-use, out-of-the-box installation provides easy

■

and cost-effective setup. Its non-disruptive installation avoids complete hotel and floor shut downs.

The system is totally manageable and provides real-time status with

■

troubleshooting tools. Both the VCN AP and VCN AC support local management through a terminal emulating computer connection. A Telnet connection in the Internet or Intranet, supports secure remote management of the VCN AC in addition to software download.

The system presents a low cost of ownership while providing

■

customers with mutiple services over a single wire, and providing operators of hotels, residential telecommunications, and office towers a single manageable network. Its low cost derives from the re-use of common cabling systems, such as Category 5. It offers low cost maintenance and flexible tracking capabilities and is readily integrated with existing hotel and multiple dwelling unit (MDU) billing systems.

The Visitor and Community Network system provides a foundation for

■

future services such as IP telephony. The system offers the capability to present local advertising and local interest information from a Visitor and Community Network (VCN) server to users on their computer monitors. Via a VCN server, Internet, video on demand, and gaming services can be billed.

The system is easily expanded to cover the required number of rooms.

Visitor and Community Network Applications 11

Visitor and Community Network Applications

Existing Phone Lines

The Visitor and Community Network system serves the following applications:

■ Multiple Dwelling Units (MDU)

■ Multiple Tenant Units (MTU)

Figure 1

Figure 1 MTU/MDU Visitor and Community Network Systems Application

Punch-Down Block

SuperStack II 1100 Switch

13x

Com

green

flashinggreen

12x

6x7x

off

2 3

151516

16 17

24x

18x19x

3C16980

24PortsConcentrator

VCN Access

Concentrator

Status

=enabled,linkOK =disabled,linkOK =linkfail

665

1818191920

212122

MDUs include apartment houses and hotels.

MTUs comprise mainly office complexes.

shows a typical MTU/MDU application.

Regular

Phone

Cable

r e

Power

P L

e d o M

x a F

Fax-Modem

T E N

R E

H T E

ETHERNET

Ethernet

3C10BSO24OA-C

Ethernet

Module

Unit

11111212112

Packet

Status

Packet

232324

Power/SelfTest

Status

SuperStackII Switch3300

VCN AP

Visitor Based

Networking Servers

Corporate

Intranet

Corporate

Server

Firewall

VPN Router

Punch-Down Block

Phone Line

T1 to ISP

VPN Router

Internet

PBX

PSTN

When personal computer equipped with an Ethernet card is plugged into the Ethernet port of the VCN AP, the system provides fast internet and

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VERVIEW

other network services for data transmissions while allowing voice channels to be used simultaneously.

The VCN AP connects to the VCN AC via a standard copper wire pair. The VCN AC connects to the analog PBX or local telephone exchange and to a 10 Base-T switch, e.g. 3Com® VCN Services Switch 10.

After connecting the telephone and the computer to the VCN AP, a person can send data from his computer and speak on the telephone simultaneously. An additional telephone extension based on the same cable remains available for conversation but, does not go through the VCN AC since the two telephones do not share the same wire pair.

Thus a hotel or a residence that installs Visitor and Community Network is able to add many more communication services without losing any existing capability.

The VCN AP joins voice and data channels in the direction of the VCN AC and separates voice and data channels toward the end user.

VCN Access Point Features

The Visitor and Community Network System facilitates intra-campus data communications over a high speed Local Area Network (LAN), i.e., Intranet. If the campus is connected to an ISP, the system enables the users on the campus to use the Internet.

Existing LAN infrastructure can be extended to locations currently lacking LAN cabling through the Visitor and Community Network system.

Services that do not need the LAN, for example, voice and fax, continue to operate normally.

The VCN Access Point has the following features:

The VCN AP is a network access device that allows a user to have an

■

Ethernet data connection, available in most PCs and laptops, over a telephone extension line and simultaneously use the same line for telephone calls.

Voice traffic is carried in its native frequency band over the copper pair

■

wire which connects the VCN AP to the VCN AC.

The VCN AP combines voice and data in the direction of the VCN AC,

■

which separates voice and data, by sending voice to the analog PBX

24 Ports Con centrator

Ethernet frames

VCN Access Point Features 13

and data to the SuperStack II 1100 Switch. The VCN AP also splits voice and data in the direction from the VCN AC. Data is sent up to 10 Mbps full duplex.

The solution also works with the VCN Services Switch 10 and the SuperStack II Switch 3300.

■ The user’s Ethernet frames are encapsulated in HDLC frames carried in

VDSL. Voice and data traffic are carried in their respective frequency ranges in the wire pair that connects the VCN AP to the VCN AC. Voice traffic, including facsimile and analog modem traffic, are not modified. Refer to Figure 2

Figure 2 Transfer of Ethernet Frames to VDSL frames in VCN System

Ethernet frame

HDLC frame

VDSL frame

Data frequency

Vo ice c alls

POTS lines

PBX

VCN AC

Ethernet

JUHHQ

#HQDEOHG/#OLQN# 2.

IODVKLQJ#JUHHQ

#GLVDEOHG/#OLQN#2.

9[ :[

45[

RII

#OLQN#IDLO

66779988::;;<<434344444545445

3DFNHW

5 6

6WDWXV

3DFNHW

46464747484849494:4:4;4;4<4<535354545555565657

6WDWXV

4;[4<[4[46[

57[

3C16980

Ethernet switch

3RZHU26HOI#7HVW

:9;

6XSHU6WDFN#,, 6ZLWFK#6633

VCN AP

Ethernet

Voice fre quency

E x istin g PO T S me ta llic p a ir lin e

Ethernet

Vo ice c all

fra me s

POTS line

The VCN AP supports 4-wire telephone cable. The additional 2 wires

■

which exist in every telephone cable will remain available for an additional extension. In telephone sets that have two RJ-11 jacks, the

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VERVIEW

additional line may be used independently of the VCN AP for connecting an analog modem or facsimile use.

The VCN AP supports remote software download of VCN APs and

■

VCN Access Concentrators through a special download menu and through a special network configuration—the VCN AP is connected to the Ethernet switch directly through the VCN AP Ethernet port. Refer to Figure 3

Figure 3

VCN AP Software Download Network Configuration

Existing Phone Lines

Punch-Down Block

VCN Servic es Switc h 1 0

24 Ports Concentrator

Punch-Down Block

Phone Line

JUHHQ

#HQDEOHG /#OLQN#2.

IODVKLQJ#JU H HQ

#GLVDEO HG/#OL QN #2.

45[

9[:[

RII

#OLQN#IDLO

66779988::;;<<434344444545445

5 6

46464747484849494:4:4;4;4<4<535354545555565657

4;[4<[4[46[

57[

3C16980

VCN Ac cess

Concentrator

3DFNHW

6WDWXV

3DFNHW

6WDWXV

3RZHU26HOI#7H VW

:9;

6XSHU6WDFN#,, 6ZLWFK#6633

PBX

User

Computer

Ethernet

Software Download

VCN A ccess P o int

Regular

Phone

Cable

VCN

Access P oint

Manage m ent

Computer

Operational Controls

This section describes the connectors and LED indicators of the VCN AP.

Figure 4

displays the VCN AP Unit Front View.

VCN Access Point Features 15

Figure 4

Ethernet LED

The VCN AP Unit Front View

Line

Fax-ModemETHERNET

Ethernet port

Power

Fax-Modem port

Line LED

Local Management Connector (hidden)

Power LE D

Ta b l e 3 describes the LEDs and connectors on the front panel.

Ta b le 3

Item Type State Used to

Ethernet LED Green Indicate connection of the

Ethernet RJ-45 - Connect the

Fax-

Modem

Line LED OFF indicate

The VCN Access Point LEDs and Connectors - Front View

VCN AP

RJ-11 port - Connect a fax machine or a fax modem of a PC

for sending/receiving faxes or making dial-up data transfers.

VCN AP

Green Indicate connection of the

to a PC

is not connected to the line

VCN AP

Flashing in Green

Power LED OFF Indicate that the

Orange After 30 seconds, indicate that the

Green Indicate that the

LMI 4-pin

MiniDin connector (hidden)

Indicate data transmission to the

power-on-self-test (POST) failed

- Connect the ASCII terminal for monitoring and troubleshooting.

VCN AP

is not powered

is functional

to a PC

to the

VCN

Figure 5

displays the back panel of the VCN AP.

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VERVIEW

Figure 5

VCN AP Unit Back Panel

PHONE

Telephone

port

LINE

Line port

DC-IN

5Vdc Power Socket

Ta b l e 4 describes the connectors on the back panel.

Ta b le 4

Item Type State Used to

Telephone RJ-11 port - Connect the telephone set

Line RJ-11 port - Connect the VCN AP to the room

DC-IN 8-pin MiniDIN DC Power

The VCN AP Unit LEDs and Connectors - Back Panel

telephone socket

- Connect the AC/DC adapter

port

AFETY INFORMATION

This chapter provides safety information in English, French and German.

The topics covered in this chapter are:

■ Safety Precautions

■ Précautions de sécurité concernant le VCN Access Point

■ Sicherheitsvorkehrungen für den VCN Access Point

Safety Precautions

The following safety precautions should be taken before installing the VCN Access Point:

To reduce the risk of electrocution and fire:

■ All servicing should be undertaken only by qualified service personnel.

There are no user serviceable parts in the unit.

■ Do not plug in, turn on or attempt to operate an obviously damaged

unit.

DO not operate the unit in a location where the maximum ambient

■

temperature exceeds 40 degrees C.

Be sure to unplug the power supply cord from the wall socket before

■

attempting to remove and/or replace the unit.

The power supply provides for automatic selection of either 100-120

■

Vac or 200-240 Vac, 60/50 Hz, as indicated on the safety label adjacent to the power inlet. Ensure that the available voltage supply at the mains is within one of these two ranges.

Use only the special power adapter supplied with the unit.

■

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AFETY INFORMATION

2: S

Précautions de sécurité concernant le VCN Access Point

Attention: Réduisez les risques d'electrocution et d'incendie

Sicherheitsvorkehrungen für den VCN Access Point

Toute intervention sera effectuée

■

uniquement

par un personnel qualifié. L'unité ne comporte pas de pièces à remplacer par l'utilisateur.

Si l'unité est visiblement endommagée

■

la brancher au secteur,

ne pas

ni tenter de la mettre en fonction.

■ Ne pas faire fonctionner

l'unité dans un endroit où la température

ambiante dépasse 40 degrés C.

Assurez vous que vous avez bien débranché le câble d'alimentation

■

électrique de la prise de courant

d'essayer de déplacer ou de

avant

remplacer l'unité.

Le bloc d'alimentation sélectionne automatiquement la tension

■

d'entrée (soit 100-120 V soit 200-240 V, alternatif 60/50 Hz) comme indiqué sur l'étiquette de sécurité apposé à côté de la prise.

Assurez-vous

que la tension disponible au secteur se trouve dans la

plage appropriée.

N'employez que l'adaptateur d'alimentation fourni avec l'unité.

■

Warnung: Um das Risiko eines elektrischen Stromschlages mit möglicher Todesfolge und eines Feuers zu reduzieren:

Alle Wartungsdienste sollten

■

von qualifiziertem Wartungspersonal

nur

durchgeführt werden. Die Einheit enthält keine Teile, die der Benutzer selbst warten kann.

Schließen Sie die Einheit

■

unter keinen Umständen

an das Stromnetz an, schalten diese ein oder versuchen diese zu benutzen, wenn die Einheit klar erkennbar beschädigt ist.

■ Bedienen

Sie die Einheit

, wenn die Temperatur am Standort 40

nicht

Grad C übersteigt.

Ziehen Sie den Stromstecker aus der Steckdose,

■

bevor

Sie die

Energieversorgung entfernen und/oder austauschen.

Sicherheitsvorkehrungen für den VCN Access Point 19

■ Die Energieversorgung wählt automatisch entweder 100-120 V WS

oder 200-240 V WS, 60/50 Hz, wie auf dem Sicherheitsaufkleber neben der Energiezufuhr angegeben.

Gewährleisten

Sie, daß die vorhandene Stromleistung des Hauptstromnetzes innerhalb eines dieser möglichen Bereiche liegt.

■ Verwenden Sie nur den besonderen Adapter, der mit der Einheit

geliefert wird.

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AFETY INFORMATION

2: S

NSTALLING AND

PERATING THE

Prerequisites for Installation

VCN A

This chapter provides the information about installing, setting up, powering up and operating the VCN Access Point. The following topics are described:

■ Prerequisites for Installation

■ Installing the VCN Access Point

■ Operating the VCN Access Point

Before installing the VCN AP, check that you have all the necessary components and accessories listed in Ta b le 5 required outlets in the room where you will be installing the unit.

The initial communications setup in a room is illustrated in the Figure 6

Figure 6

CCESS

Initial Room Communications Setup

OINT

and that you have the

Telephone

Socket

The accessories needed for installation are included in the package provided with the VCN AP set. Prior to carrying out installation, compare the VCN AP package contents with items listed in Ta bl e 5

Ta b le 5

NO. Item Quantity Supplied by

Unpacking List

VCN AP

PC (desktop, laptop or palm held) equipped with Ethernet Card.

1 3Com

1 End User

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NSTALLING AND OPERATING THE

3: I

VCN A

CCESS POINT

Ta b le 5

Unpacking List (continued)

NO. Item Quantity Supplied by

3 ac/dc adapter 1 3Com

4 Line cable (RJ-11) 1 3Com

5 Laptop/PC cable (RJ-45) 1 End User or Customer on Request

6 FAX cable (RJ-11) 1 End User or Customer on Request

7 4-pin MiniDIN Control

Cable

8 Long screws

9 Short screws

10 Wall anchors

11 Template

1,2

1 3Com, for Local Management or

Troubleshooting Only

3 3Com

3 3Com.

3 3Com

1 3Com, for Installation only

12 Rubber pads3 4 3Com

VCN AP

For

For installing

For

VCN AP

wall installation

VCN AP

under the table

table top installation

The VCN AC must be installed before the VCN AP. Refer to the Visitor and Community Based Networking Concentrator Unit Service Manual.

Installing the VCN Access Point

The VCN AP may be conveniently mounted on one the following:

a wall, see page 23.

■

under a table, see page 27.

■

on top of a table, see page 32.

■

Installing the VCN Access Point 23

Mounting the VCN

Access Point on a

Wall

To mount the VCN AP on a wall perform the following tasks.

Apply the paper template to the wall as shown in Figure 7

Figure 7 Using the Paper Template to Mark the Wall

The partially curved edge of the template corresponds to the curved cover that is part of the VCN AP front panel.

Remove the cover by sliding it downward and then pulling it outward.

See Figure 8

Figure 8 Removing Curved Cover

crew hole

Line

Fax-ModemETHERNET

Power

All three holes in the VCN AP are plugged.

Remove the plugs from the two large holes by prying them out with the

tip of your screwdriver.

Remove the plug from the small hole by forcing it out from the bottom

with a pointy instrument (for example a nail).

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NSTALLING AND OPERATING THE

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Where the three crosshairs of the template holes intersect, indent the

surface with a sharp tool (for example a nail). See Figure 7

Remove the template.

Drill the indented holes with a drill bit of the same diameter as the wall

anchors. See Figure 9

Note: If the provided anchors are not suited to your wall, you must obtain and insert suitable anchors that match the diameter of the provided screws.

VCN A

CCESS POINT

Figure 9

Insert the three anchors. See Figure 10

Drill Holes for Anchors

Installing the VCN Access Point 25

Figure 10

Drive two of the three long screws provided into the bottommost anchors to the distance indicated in Figure 11

Figure 11

Inserting Anchors

. See Figure 12.

Offset of the Screw Head from the Wall

7/64 in

25 - 3mm

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NSTALLING AND OPERATING THE

3: I

VCN A

CCESS POINT

Figure 12

Align the two large holes of the VCN AP (see Figure 13

Driving Screws into the Wall

) with the two

already driven screws and insert the screw heads into the holes .

Shift the VCN AP downward so that the screw shanks slip into the slots and the topmost indented hole is aligned with the VCN AP's small screw hole.

Figure 13

Large hole

Screw Holes in the Top of the VCN AP

Large hole

Drive the last screw into the wall anchor to the full depth.

Small screw hole

Installing the VCN Access Point 27

Reinsert the curved cover by reversing the sequence of step 2

Figure 14

Figure 14 VCN AP without Curved Cover

Figure 15 Placing Curved Cover on VCN AP

and Figure 15.

. See

Mounting the VCN

Access Point Under a

Ta b l e

Two screws support the rear side of the VCN AP and an additional screw is used to fasten its front. Find an appropriate location for the VCN AP on the lower surface of a table, as in Figure 16

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NSTALLING AND OPERATING THE

3: I

VCN A

CCESS POINT

Figure 16

Mounting Underneath a Table

VCN AP Mounted to Underside o f Table Top

To mount the VCN AP under a table, perform the following tasks:

Tape the paper template (see Figure 17

) to the under side of the table.

Make sure that the straight edge is farthest away from you and the partially curved edge is nearest to you.

Figure 17

Using the Paper Template to Mark the Table

paper

template

The partially curved edge of the template corresponds to the curved cover that is part of the VCN AP's front panel.

Remove the cover by sliding it downward and then pulling it outward.

See Figure 18

Installing the VCN Access Point 29

Figure 18

Removing Curved Cover

crew hole

Line

Fax-ModemETHERNET

All three holes in the VCN AP are plugged.

Remove the plugs from the two large holes by prying them out with the tip of your screwdriver.

Remove the plug from the small front hole by forcing it out from the bottom with a pointy instrument (for example, a nail).

Where the crosshairs of the template holes intersect, indent the surface with a sharp tool (for example, a nail).

Remove the template. See Figure 17

Power

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NSTALLING AND OPERATING THE

3: I

Insert two of the three short screws provided into the farthest indented

holes (Figure 19

CCESS POINT

VCN A

) and drive them to the distance indicated in Figure 20.

Figure 19

Figure 20

Driving Two Screws into the Table

Offset of the Screw Head from the Table

7/64 in

25 - 3mm

Align the two large holes of the VCN AP (see Figure 21

) with the two

already driven screws.

Insert the screw heads into the holes and then shift the VCN AP forward

so that the screw shanks slip into the slots and the closest indented hole is aligned with the VCN AP's small screw hole. See Figure 22

+ 78 hidden pages

3Com DSA-3CV1001-02 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Conventions

Related Documentation

Year 2000 Compliance

Visitor and Community Network Major Features and Benefits

Features

Benefits

Visitor and Community Network Applications

VCN Access Point Features

Operational Controls

Safety Precautions

Précautions de sécurité concernant le VCN Access Point

Prerequisites for Installation

Installing the VCN Access Point