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
A
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/
G
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

Related Documentation

Ta b le 2
Convention Description
Screen displays This typeface represents information as it appears on the
The words “enter” and “type”
Words in [ ] Default values are bracketed in “[ ]”.
Keyboard key names If you must press two or more keys simultaneously, the key
Words in italics Italics are used to:
Text Conventions
screen.
When you see the word “enter” in this guide, you must type something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says “type.”
names are linked with a plus sign (+). Example:
Press Ctrl+Alt+Del
Emphasize a point.
Denote a new term at the place where it is defined in the text.
Identify menu names, menu commands, and software button names. Examples:
From the Help menu, select Contents.
Click OK.
The Visitor and Community Based Networking System documentation set includes the following documents:

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
C
A
BOUT THIS GUIDE
Conventions 3 Related Documentation 4 Year 2000 Compliance 4
O
1
2
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
S
AFETY INFORMATION
Safety Precautions 17 Précautions de sécurité concernant le VCN Access Point 18 Sicherheitsvorkehrungen für den VCN Access Point 18
I
NSTALLING AND OPERATING THE
3
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
U
4
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
T
A
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
P
B
C
RODUCT SPECIFICATION
L
OADING SOFTWARE THROUGH LOCAL ACCESS
PIN A
D
Connector for Local Management Terminal 89
Local Management Cable Wiring 91
T
E
Defining the Terminal Emulation Settings 93 Establishing Terminal Settings 94
T
F
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
I
NDEX
3COM C
EMC S
S
AFETY STATEMENT
ORPORATION LIMITED WARRANTY
TATEMENTS
1
VERVIEW
O
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
1x
13x
3
Com
green
flashinggreen
12x
6x7x
off
4
3
4
2 3
5
13
151516
17
14
13
16 17
14
24x
18x19x
3C16980
24PortsConcentrator
VCN Access
Concentrator
Status
=enabled,linkOK =disabled,linkOK =linkfail
7
8
9
665
7
8
9
1818191920
212122
20
MDUs include apartment houses and hotels.
MTUs comprise mainly office complexes.
shows a typical MTU/MDU application.
Regular
Phone
Cable
om
c
3
r e
w
e
e
o
n
in
Power
P L
Li
m
e d o M
­x a F
Fax-Modem
T E N
R E
H T E
ETHERNET
Ethernet
3C10BSO24OA-C
Ethernet
Ethernet
Module
Unit
11111212112
10
2
1
Packet
10
4
3
Status
Packet
232324
Power/SelfTest
5
6
24
22
Status
7
8
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
12 C
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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
3
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
57
6WDWXV
4;[4<[4[46[
57[
3C16980
Ethernet switch
4
5
7
3RZHU26HOI#7HVW
8
: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
14 C
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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
3
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
57
4;[4<[4[46[
57[
3C16980
VCN Ac cess
Concentrator
3DFNHW
6WDWXV
3DFNHW
6WDWXV
4
5
7
3RZHU26HOI#7H VW
8
:9;
6XSHU6WDFN#,, 6ZLWFK#6633
PBX
User
Computer
Ethernet
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
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
AC
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
VCN AP
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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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
2
AFETY INFORMATION
S
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.
18 C
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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.
20 C
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2: S
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O
3

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
P
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
1
2
Unpacking List
VCN AP
PC (desktop, laptop or palm held) equipped with Ethernet Card.
1 3Com
1 End User
:
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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
1,2
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
1
VCN AP
For
2
For installing
3
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
S
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
1
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.
2
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
3
tip of your screwdriver.
Remove the plug from the small hole by forcing it out from the bottom
4
with a pointy instrument (for example a nail).
24 C
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Where the three crosshairs of the template holes intersect, indent the
5
surface with a sharp tool (for example a nail). See Figure 7
Remove the template.
6
Drill the indented holes with a drill bit of the same diameter as the wall
7
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
8
Drill Holes for Anchors
.
Installing the VCN Access Point 25
Figure 10
9
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
.
26 C
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VCN A
CCESS POINT
Figure 12
Align the two large holes of the VCN AP (see Figure 13
10
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.
11
Small screw hole
Installing the VCN Access Point 27
Reinsert the curved cover by reversing the sequence of step 2
12
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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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
1
) 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.
2
See Figure 18
.
Installing the VCN Access Point 29
S
Figure 18
Removing Curved Cover
crew hole
Line
Fax-ModemETHERNET
All three holes in the VCN AP are plugged.
3
Remove the plugs from the two large holes by prying them out with the tip of your screwdriver.
4
Remove the plug from the small front hole by forcing it out from the bottom with a pointy instrument (for example, a nail).
5
Where the crosshairs of the template holes intersect, indent the surface with a sharp tool (for example, a nail).
6
Remove the template. See Figure 17
Power
.
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Insert two of the three short screws provided into the farthest indented
7
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
8
) with the two
already driven screws.
Insert the screw heads into the holes and then shift the VCN AP forward
9
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
.
Installing the VCN Access Point 31
Figure 21
Large hole
Figure 22
Screw Holes in the Top of the VCN AP
Large hole
Small screw hole
Inserting the VCN AP under the Table
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Drive the last short screw through the small screw hole and into the
10
surface full depth. See Figure 23
VCN A
CCESS POINT
.
Placing the VCN AP
on Top of a Table
Figure 23
Reinsert the curved cover by reversing the sequence of step 2
11
Completion of Mounting the VCN AP Under the Table
Four rubber pads must be attached to the VCN AP bottom to provide stability when the VCN AP is used on top of a table.
.
Installing the VCN Access Point 33
To mount the VCN AP on top of a table perform the following tasks:
Stick the four rubber pads to the bottom of the VCN AP as shown in
1
Figure 24
Figure 24 Preparing VCN AP for Table Top Use
.
Attach Four Rubber Pads
Connecting the VCN
AP
Local
Management
Section
Turn the VCN AP over and place it on top of a table near the ac power
2
Rear Panel
and telephone sockets in the room.
To enable VCN AP operation, connect the following from the rear of the unit:
Connect the RJ-11 cable coming out from the telephone set to the
VCN AP PHONE port at the front.
Connect an RJ-11 cable from the VCN AP LINE port to the wall
telephone socket.
Connect the ac/dc adapter to the DC-IN port in the VCN AP and to the
ac power socket in the room.
The resulting connections are illustrated in Figure 25
.
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VCN A
CCESS POINT
Figure 25
Connect an RJ-45 cable from the user’s PC to the Ethernet port at the
Preparation of the
telephone
socket
LINE
PHONE
VCN Access Point
DC-IN
ac/dc
adapter
VCN Access Point
ac power
socket
front of the VCN AP. The user’s PC must be equipped with an Ethernet card. If the user’s PC does not have an Ethernet card installed, the modem card connects in the Fax-Modem port at the front of the VCN AP. In such case, the data does not go through the VDSL line and cannot make use of the 10 Mbps full duplex connectivity.
If the telephone set has an additional RJ-11 port, it can be used
independently of the VCN AP for fax or modem.
Thirty seconds after the VCN AP is connected to power, check that the Power and Line LEDs on the VCN AP front panel are green. Refer to
Figure 8
on page 23.
The VCN AP does not have an ON/OFF switch. The unit is powered on as soon as it is connected to ac power.
If the LEDs on the VCN AP do not turn green, refer to Appendix A
Troubleshooting
Figure 26
illustrates the VCN Access Point-VCN Access Concentrator
, section “Power-on Self Test (POST)”.
network after the VCN AP is installed and a user computer is attached to the VCN AP. The user has both access to the Public Switched Telephone Network (PSTN) and a high speed connection to an Internet Service Provider (ISP) as well as an additional connection to a fax or Modem.
Operating the VCN Access Point 35
Figure 26
VCN Access Concentrator
24 wire pairs
Communications Access via the VCN AP
VCN
Access Point
m o
c
3
ower P
Line
Fax-Modem
ETHERNET
Basement
24 wire pairs
24 wire pairs
PBX
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
3C10BSO24OA-C
LAN
1
LINE
POWER
24PortsConcentrator
3456789
2
3
Com
24 wire pairs
Punch-Down Blocks
Room
ISP / INTERNET
NSP / PSTN

Operating the VCN Access Point

Making a Voice Call

After the installing and mounting the VCN Access Point it is ready for use. The VCN AP may be used for the following:
Making a Voice Call
Sending and Receiving Data Traffic
Sending and Receiving Faxes
You can make a voice call without connecting the VCN AP to power or to any front panel connection.
To place a voice call:
1
Check that the telephone port is connected to a telephone set and the LINE port on the rear of the VCN AP is connected to the wall telephone socket.
2
Use the telephone set as if it were connected directly to the wall socket.
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If the telephone set has an additional RJ-11 port, it can be used
3
independently of the VCN AP for fax. Connect an RJ-11 cable between the fax machine or the PC fax modem to the PC RJ-11 port on the VCN AP.
VCN A
CCESS POINT
Sending and
Receiving Data Traffic
Sending and
Receiving Faxes
To send or receive data traffic:
Connect a RJ-45 cable between the Ethernet port and the PC Ethernet
1
card.
NOTE: No password or account number specific to the local ISP is needed, however, your normal log-in procedure should be observed, including access privileges like user ID, password, etc.
Run your network application: browser, e-mail etc.
2
You can make a fax call without connecting the VCN AP to power.
To send or receive faxes:
Connect a RJ-11 cable between the fax machine or the PC fax modem
1
and the VCN AP Fax-Modem port.
Use the fax machine and the telephone set in accordance with the fax
2
machine user manual.
If the telephone set has an additional RJ-11 port, it can be used
3
independently of the VCN AP for fax or modem. Connect an RJ-11 cable between the fax machine or the PC fax modem to the PC RJ-11 port.
SING THE LOCAL
U
ANAGEMENT
M
4

Using the Management Te r m i n a l

CCESS
A
This chapter describes using the Local Management Access (LMA) and remote management. The LMA is accessible via a terminal emulating computer connected to the LMA port on the VCN Access Point. The terminal is used for monitoring and problem solving. Remote software downloading is done via a Telnet program which can monitor the VCN Access Concentrator from a remote terminal.
The following topics are described:
Using the Management Terminal
VCN Access Point Menus
Remote Software Download
A computer with terminal emulation software provides the user interface to the local management of the VCN Access Point.
Management
Te r m i n al
Requirements
For service and maintenance, use a PC equipped with a terminal application capable of 115,200 bps serial communication with a VCN AP. Refer to Appendix E
The cable for connecting the management computer has a DB 9 pin connector for the computer and a 4 pin MiniDIN connector for the VCN AP LMA port. If you do not have the cable, contact your 3Com representative. Refer to Appendix D detailed description of the cable and the LM connectors.
Terminal Emulation Settings.
Pin Assignments for LMA Cable for a
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Connecting the PC Terminal Emulator

Perform the steps below to connect the PC to the LMA port:
Remove the cover from the LMA section of the VCN AP as in the figure
1
below.
Figure 27
LMA Section of the VCN Access Point
crew hole
Line
Fax-ModemETHERNET
Connect the LMA port to the PC serial port (COM1 or 2) with the cable
2
provided you; if you do not have the cable, contact 3Com. Plug the end of the cable with the a four-pin MiniDIN connector into the VCN AP LMA port.
Power
Local Management Port

VCN Access Point Menus

Summary and
Structure of the
Menus
This section describes the menus.
This section provides a menu hierarchy to describe the structure of the menu system and a menu summary to help the network administrator use the management system efficiently.
The chart in Figure 28
summarizes the menu hierarchy. The abbreviations next to the menu names are suggestions for how the menus are used. Most of the menus labeled D are not described further in this chapter since they are used mainly by developers for debugging. The debug menus for performing loopbacks are described since loopbacks can be used by network administrators to solve problems.
VCN Access Point Menus 39
Login Process
Access Point Main Menu
KEY
Configuration
C M
Monitoring syste m operation and problem reporting
P
Problem Solving
S
Software Download
D
Debug, for developers use only
Figure 28
Management Menu
D
Debug Menu
D
Test Control
D
Flash Actions
C
AP Configuration
M
VDSL Control
P
AP Version
Menu Hierarchy
M
M
D
S P
P
C
C
C C
M
Change
P
Work Mode
M
C
S D
P
Ethernet Status
Traffic Counters
P
Reset Counters
Learning Table
D
Change Work Mode
P
HDLC Status
M
Traffic Counters
P
Reset Counters
Operation Mode Selector
Ethernet Menu
HDLC Menu
Tasks Info Menu
Reset Board
Reset All Counters
Set Ethernet Half/Full Duplex Mode
Set VLAN ID for Management
Change Password Set to Factory Defaults
QAM Channel Status
P
D
Set Internal Loopback Mode
P
D
D
D
D
Read BCM6010 register
D
Write BCM6010 register
D
I2C control
D
VDSL print
Set Normal Mode
Set External Loopback Mode
Set Full Duplex Mode
Set Normal Mode
Set Internal Loopback Mode
Ta b l e 6 provides a summary of the line card menus, the submenus and
the corresponding number sequence. Click a menu or submenu name to receive more information.
After typing each number in the number sequence press the <Enter> key.
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Ta b le 6
Menu Name Submenu
Access Point Main Menu
Management Menu 3
VDSL Menu 4
AP Configuration Menu 7
Number Sequence Corresponding to Submenus
AP Version 1
The Ethernet Menu 31
Ethernet Traffic Counters 3 1 1
Ethernet Status 3 1 2
Reset Counters 3 1 3
Change Ethernet Work Mode Menu 3 1 4
The HDLC Menu 3 2
HDLC Traffic Counters 3 2 1
HDLC Status 3 2 2
Reset Counters 3 2 3
Change HDLC Work Mode 3 2 4
Reset All Counters 3 4
Reset the Board 3 5
VDSL QAM Channel Status Report 4 1
Set VLAN ID for Management 7 1
Set Ethernet Half/Full Duplex Mode 7 2
Change Password 7 3
Set to Factory Defaults 7 4
Number Sequence

Login

After connecting the management terminal to one of the LMA ports 2 through 24, press any key. The login dialog appears:
Login:
Type your Login ID and press <Enter>.
Password:
Type your password and press <Enter>.
VCN Access Point Menus 41
Access Point Main
Menu
The default login is
admin
; the default password is null—just press
<Enter>.
If you forget your password, contact technical support. Refer to
Appendix F
When you complete Login, the
Technical Support.

Access Point Main Menu

appears. If the
login was unsuccessful, the following message appears:
Login incorrect
In reconnecting to the VCN AP, the last used menu often appears. In most menus, except where indicated, the option labeled higher level menu (Figure 29
Figure 29 Return to Previous Menu Option
0. Return to previous menu
Press any key to view the If another menu appears, type the
Access Point Main Menu
Figure 30 VCN AP Main Menu
).
Access Point Main Menu
0 (zero) and press <Enter> repeatedly until
appears.
0 is for returning to a
on the terminal screen.
Access Point Main Menu
----------------------
1. AP Version
2. Debug Menu
3. Management Menu
4. VDSL control
5. Test control
6. Flash actions
7. AP Configuration
8. Software Download Menu
0. Exit
Please enter your choice:
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AP Version

Management Menu

Confirm VCN AP functionality by checking the software and hardware versions and dates.
To check the software version, enter
1
page 41
Figure 31
Press <Enter> to return to the
2
To d i s p l a y t h e <Enter>. The
Figure 32
). The following screen appears:
Version Screen
System Display
-------------­HW Version: 1.0 SW Version: 3.5 SW Date: Jul 23 2000, SW Time: 15:56:28
Press ENTER to continue ...
Management Menu
Management Menu
VCN AP Management Menu
Management Menu
----------------
In the
1
Main Menu
, type
appears:
Main Menu
.
in the Main Menu and press
3
(Figure 30,

The Ethernet Menu

1. Ethernet Menu
2. HDLC Menu
3. Tasks Info Menu
4. Reset All Counters
5. Reset Board
0. Return To Previous Menu
Please enter your choice:
To view the Ethernet Menu:
VCN Access Point Menus 43
In the
1
2
VCN AP Main Menu
In the
Management Menu
Figure 33 Ethernet Menu.
Ethernet Menu
-------------
1. Traffic Counters
2. Ethernet Status
3. Reset Counters
4. Change Work mode 5 Learning table
0. Return to previous menu
Please Enter your choice:
enter
, enter
3.
1. The
Ethernet Menu
appears
Ethernet Traffic Counters
The Ethernet traffic counters count normal frames and errored frames transferred between the user’s PC and the VCN AP.
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To check the Ethernet traffic counters, type 1 in the press <Enter>; the
Figure 34
transmit counters Tx frames - 6107 Tx error - 0 Discarded - 0
Receive counters Rx frames - 159 Crc errors - 0 Discarded - 0 Alignment error - 0 Overrun - 0 Collision - 0 Frame too long - 0 Frame too short - 0
press <Enter> to continue
Ethernet Traffic Count Screen
Ethernet Traffic Counters
Ethernet traffic counters
-------------------------
screen appears:
Ethernet Menu
and
Ethernet Status
To check Ethernet status, press
screen appears:
Status
Figure 35
Scc channel numbers - 2 Work Mode - normal mode Transmit enable - yes Receive Enable - yes Heartbeat checking - no Retry Limit - 15 Maximum length of rx frame - 1522 Maximum length of tx frame - 64 bytes
press <Enter> to continue...
Ethernet Status Screen
Ethernet Status
---------------
in the
2
Ethernet Menu
; the
Ethernet
Reset Counters
To reset Ethernet counters:
VCN Access Point Menus 45
1
In the
Ethernet Menu
3 and press <Enter>. The following message
, type
appears:
Do you want to proceed (Y/[N])? :
Ty p e
2
y and press <Enter> to perform the reset. The following message
appears:
The action has been done !
Learning Table
To view the MAC and IP addresses of the user’s PC, type
and press <Enter>. If a PC is connected, the
Menu
Figure 36
Figure 36 A Typical MAC Address Display
appears.
Learning table:
---------------
MAC address: 00-60-08-BC-F7-7F IP address : 191.28.68.25
Press <Enter> to continue.......
5 in the
Learning Table
Ethernet
in
If a PC is not connected, the message in Figure 37 appears.
Figure 37 Station not Connected Message
Learning table:
---------------
Station not connected
press <Enter> to continue...
Change Ethernet Work Mode Menu
To change the Ethernet loopback mode or the duplex mode, use the
Change Work Mode Menu
. In the
<Enter>. The options in Figure 38
Ethernet Menu
appear.
, type
and press
4
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Figure 38
Current Working Mode of Ethernet: Normal Operation
1. Set Normal Mode
2. Set Internal Loopback Mode
3. Set Extenal Loopback Mode
4. Set Full Duplex Mode
0. Return to Previous Menu
Please enter your choice:
In the
Change Work Mode Menu
Change Work Mode Menu
---------------------
Change Work Mode Menu
, the current working mode is shown to
be one of:
Normal Operation
Normal operation is lack of loopbacks and half duplex.
Internal Loopback Mode
External Loopback Mode
Full Duplex Mode
The full duplex mode is displayed if a previous operation changed the mode to full duplex.
Refer to Setting Duplex Mode
, on page 47, for changing the duplex
mode.
Setting Internal Loopback Mode
To set internal loopback mode, type
and press <Enter>. The message
2
appears:
This action will change the working mode of Ethernet! Do you want to proceed (Y/[N])? :
To c o n f i r m t y p e y; to discard, type n; and and press <Enter>.
When you proceed, the message appears:
Action has been done.
VCN Access Point Menus 47
When you discard the operation, the message appears:
The action has been canceled
Setting External Loopback Mode
To set external loopback mode, type
3 and press <Enter>. The message
appears:
This action will change the working mode of Ethernet! Do you want to proceed (Y/[N])? :
To c o n f i r m t y p e y; to discard, type n; and and press <Enter>.
When you proceed, the message appears:
Action has been done.
When you discard the operation, the message appears:
The action has been canceled
Setting Normal Mode
To set normal mode, type
This action will change the working mode of Ethernet! Do you want to proceed (Y/[N])? :
1 and press <Enter>. The message appears:
To c o n f i r m t y p e y; to discard, type n; and and press <Enter>.
When you proceed, the message appears:
Action has been done.
When you discard the operation, the message appears:
The action has been canceled
Normal mode is both lack of loopbacks and half duplex operation.
Setting Duplex Mode
To change the duplex mode to full, type
, and press <Enter>. The messages appear:
Menu
4 in the
Change Work Mode
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This action will change the working mode of Ethernet! Note: the change will NOT be saved after reset. For changing and saving use the configuration menu Do you want to proceed (Y/[N])? :
To c o n f i r m t y p e y; to discard, type n; and and press <Enter>.
When you proceed, the message appears:
Action has been done.
When you discard the operation, the message appears:
The action has been canceled

The HDLC Menu

To view the
In the
1
HDLC Menu
Main Menu
appears (Figure 32
In the
2
Management Menu
appears (Figure 39
Figure 39
1. Traffic Counters
2. HDLC Status
1. Traffic Counters
3. Reset Counters
2. HDLC Status
4. Change Work mode
3. Reset counters
0. Return to previous menu
4. Change Work mode O. Return to previous menu
Please Enter your choice: Please Enter your choice... :
HDLC Menu.
HDLC Menu
----------
,
type
3
).
).
HDLC Menu
--------
and press <Enter>. The
type
and press <Enter>. The
2
Management Menu
HDLC Menu
HDLC Traffic Counters
The HDLC traffic counter counts normal frames and errored frames over the common telephone and data line, thus indicating the behavior of the connection between the VCN AP and the VCNAC.
To check the HDLC traffic counters, type <Enter>; the
HDLC Traffic Counters Screen
in the HDLC Menu and press
1
appears (Figure 40
).
VCN Access Point Menus 49
Figure 40
Transmit counters
Tx frames - 3 Retransmissions - 0 Tx errors - 0 Discards - 0
Receive counters
Rx frames - 6 Crc errors - 10219 Discards - 0 Abort sequences - 23017 Overruns - 0 Not mine - 0 Frames too long - 0 Dpll errors - 0 Frames not aligned - 39201
Press ENTER to continue ...
HDLC Traffic Counters Screen
HDLC Traffic Counters
---------------------
Reset Counters
To reset HDLC counters:
1
2
HDLC Menu
In the
Do you want to proceed(Y/[N])? :
y
and press <Enter> to perform the reset.
Ty p e
, type
3
and press <Enter>. The message appears:
HDLC Status
2
To check HDLC status, enter
in the HDLC menu; the HDLC Status screen
appears:
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Figure 41
Scc channel numbers - 3 Work Mode - normal mode Transmit enable - yes Receive Enable - yes Maximum length of rx frame- 1518
press <Enter> to continue...
HDLC Status Screen
HDLC Status
------------
Change HDLC Work Mode
To change the HDLC loopback mode, use the In the
HDLC Menu
, type
and press <Enter>. The options in Figure 42
4
Change Work Mode Menu
appear.
Figure 42
Current Working Mode of HDLC: Normal Operation
1. Set Normal Mode
2. Set Internal Loopback Mode
0. Return to Previous Menu
Change HDLC Work Mode Menu
.
Please enter your choice:
In the
Change Work Mode Menu
, the current working mode is shown to
be one of:
Normal Operation
Normal operation is lack of loopbacks.
Internal Loopback Mode
Setting Internal Loopback Mode
To set internal loopback mode, type
and press <Enter>. The message
2
appears:
This action will change the working mode of HDLC!
VCN Access Point Menus 51
Do you want to proceed (Y/[N])? :
To c o n f i r m t y p e y; to discard, type n; and and press <Enter>.
When you proceed, the message appears:
Action has been done.
When you discard the operation, the message appears:
The action has been canceled
Setting Normal Mode

Reset All Counters

Reset the Board

To set normal mode, type
This action will change the working mode of HDLC! Do you want to proceed (Y/[N])? :
1 and press <Enter>. The message appears:
To c o n f i r m t y p e y; to discard, type n; and and press <Enter>.
When you proceed, the message appears:
Action has been done.
When you discard the operation, the message appears:
Normal mode is lack of loopbacks.
To reset all counters, perform the following steps:
1
In the
Main Men
u, type
3 and press <Enter>; the
Management Menu
appears.
2
In the
Management Menu
4 and press <Enter>; a confirmation
, type
message appears. The counters have been reset.
To reset the VCN AP, type press <Enter>; the messages in Figure 43
5 in the
Management Menu
appear:
(Figure 32) and
Figure 43 Reset Board Confirmation
This action will reset the whole board
Do you want to proceed (Y/[N])? :
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To reject, press <Enter> or type n and press <Enter>. The
reappears.
Menu
To proceed type
The system is going down...
The
Operation Mode Selector Menu
Figure 44
********************************************************
3Com NCD. (C) 10Base-S Boot loader V2.00 Date: Jun 15 1999, Time: 16:13:31
CPE modem Operation Mode Selector. Enter:
S - for Serial loading OR D - for Debug operation OR F - for SW execution from the Flash OR C - for MAC address programming.
********************************************************
and press <Enter>; the message appears:
y
(Figure 44) appears.
Operation Mode Selector Menu
Management
If this menu is ignored for 5 seconds, execution from the flash begins and the messages in Figure 45 option
Option
.
F
is for entering the MAC address. This is normally performed in
C
through Figure 47 appear. This is the default
the factory.
Option
Option information see Appendix C
is for debugging. This option is for developers only.
D
is for downloading software through the LMA port. For more
S
Loading Software Through Local Access.
To use an option, type its letter.
To continue with the reset operation without performing the other options, do one the followin steps:
Wait 5 seconds.
VCN Access Point Menus 53
Enter F.
Figure 45 Reset messages
****************************** SW is being executed from Flash! Please wait... ****************************** SW image is being copied to the SDRAM Entering BOOT_image_get! Read FLASH start! Read address is - 2880008 Read FLASH OK! SW image validation passed!
SW image is being executed! *****************************
Figure 46 Start of Software Execution
Start executing main! Watchdog initialized OK !
Figure 47 Self-test Messages

VDSL Menu

HDLC selftest passed! Ethernet selftest passed! I2C selftest passed! VDSL selftest passed! MNG task created! MNG task started! LED task created! LED task started! DWN task created! DWN task started! LMA task created LMA task started
Then the Login prompt appears.
To view the
VDSL Menu
VDSL Menu
appears.
, type
4
in the Main Menu and press <Enter>; the
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Figure 48
.
VDSL Menu
VDSL Menu
---------
1. QAM channel status
2. Read BCM6010 register
3. Write BCM6010 register
4. I2C control
5. VDSL print
0. Return to previous menu
Please Enter your choice:
VDSL QAM Channel Status Report
To check the VDSL parameters, enter 1 in the VDSL Control Menu; the QAM Channel Status report appears:
Figure 49
QAM Channel Status
------------------
QAM status: In lock VDSL restarts: 1 VDSL warm starts: 0
VDSL QAM Channel Status Report
Downstream parameters
DS Symbol rate: 1.964 Mbaud DS Constellation: 2^5 DS Bit rate: 9.820 Mbps SNR Estimate: 40.30 dB
Upstream parameters
US Symbol rate: 4.910 Mbaud US Constellation: 2^2 US Bit rate: 9.820 Mbps
Press ENTER to continue ...
Figure 49 contains the following information:
QAM Status: In lock—the line to the VCN Access Concentrator (VCN
AC) is connected.
VCN Access Point Menus 55
The alternate state is Out of lock—the line to the VCN AC is not connected.
Restarts, the number of times the line to the VCN AC undergoes a
cold restart. A cold restart occurs when there is a prolonged break in the line.
Warm restart, a restart using information that existed the previous
time the link was operational. A warm start occurs when the line is briefly disconnected or line noise occurs over a period of time.
SNR, signal to noise ratio.
AP Configuration
Menu
To configure the VCN AP, type
7 in the
Access Point Main Menu
press <Enter> ; the following options appear (Figure 50
Figure 50 The AP Configuration Menu

AP Configuration Menu

----------------------
Current VLAN ID for Management: None Current Ethernet mode: Half Duplex
1. Set VLAN ID for Management
2. Set Ethernet Half/Full Duplex Mode
3. Change Password
4. Reset to Factory Defaults
0. Return to Previous Menu
Please enter your choice: 0
Set VLAN ID for Management
To set the VLAN ID perform the following steps:
1
In the
AP Configuration Menu
enter 1
.
and
):
Enter the VLAN ID number or enter
2
a confirmation, as shown in Figure 51
0 for none; a note appears as well as
.
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Figure 51
Please enter your choice: 1 Note: In a topology with VCN Concentrator, this setting may override the concentrator agent settings. For more information please refer to the service manual.
Enter VLAN ID (1-4094, 0 for none) [none]: 2
Action has been done
Setting VLAN ID Message Screen.
Set Ethernet Half/Full Duplex Mode
To set Ethernet half/full duplex mode, perform the following steps:
In the
1
2
AP Configuration Menu
Enter the desired mode; a confirmation message appears.
Action has been done.
enter
.
2
Change Password
To change the password, do as follows:
In the
1
2
AP Configuration Menu
You are prompted to enter the old password followed by the new password and a confirmation, as in Figure 52
Figure 52
Enter the old password:
Enter the new password (up to 8 characters): Confirm new password (up to 8 characters): The password was changed and saved in a non-volatile memory
Changing Password Message
, enter
3.
:
If you forget your password, contact technical support. Refer to
Appendix F
Technical Support.
VCN Access Point Menus 57
Set to Factory Defaults
To set VCN AP to factory defaults perform the following steps:
Closing the Local
Management
Interface
1
In the
AP Configuration Menu
4 and press <Enter>; a warning
, type
message that the action will set the system to their default value appears:
This action will return the system parameters to their default values!
Do you want to proceed (Y/[N])?:
Ty p e
2
y and press <Enter>; the system is set to factory default. The
following messages appear:
The factory’s default settings were written to the non-volatile memory Note: some of the changes will take effect after reset
When you are finished using the local management menus, exit your terminal emulation program and disconnect your personal computer from the Local Management port.
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Remote Software Download

Overview

Requirements

This section describes the remote software downloading procedure.
The VCN Access Point is an Ethernet over VDSL modem that combines the transmission of voice and data in the direction of the VCN Access Concentrator and separates voice and data in the direction from the VCN AC towards the user.
A VCN AP can be directly attached to the Ethernet switch for the purpose of downloading a software release update to other VCN APs and to the line cards in the VCN ACs. In this application, the VCN AP is connected directly to the Ethernet network through the Ethernet port and sends and receives data only. The user is connected to the VCN AP LMA port and operates a
Software Download Menu
to perform the software download.
The following are the requirements for downloading software:
The downloading VCN AP software is version 3.5 or later.
The software of the receiving VCN AC LCs is version 3.5 or later.
The software of the recieving VCN APs is version 3.0 or later.
The remaining requirements for the VCN APs and VCN AC are the
same as for all operational units.

Procedure

If the software requirements are not met, then local downloading procedures must be used. For the VCN AC, refer to Visitor and Community Based Networking Access Concentrator Service Manual, Chapter 3, the section Loading a New Software Release Through the LMA.
For the VCN AP, refer to Appendix C
, Loading Software Through Local
Access in this manual.
Recommendation: Prior to performing remote software download, configure your switch. Perform the procedure in Visitor and Community Network Access Concentrator Service Manual, Managing the VCN Access Concentrator, section Configuring the Ethernet Switch for the VCN Access Concentrator.
To use the VCN AP to download software perform the following steps:
Remote Software Download 59
Downloading Software to the LCs in the VCN AC
Remove the cover of the LMA section of the VCN AP to reveal the LMA
1
port, as shown in page 38
Connect the management computer to the VCN AP LMA port.
2
Using RJ-45 connectors, connect the Ethernet port of the VCN AP to an
3
Ethernet switch 10BaseT port; refer to Figure 53
, Figure 27.
. Refer to Figure 54 for
the network configuration.
Recommendation: Attach the downloading VCN AP to port
26 in the VCN Services Switch 10.
26 in the the SuperStack II Switch 1100.
24 in the VCN Services Switch 100.
24 in the SuperStack II Switch 3300.
Figure 53 The VCN Service Switch 10 Front Pane
green
= enabled, link OK
flashing green
1x
13x
6x 7x
18x 19x
12x
TCVR
24x
= disabled, link OK
off
= link fail
112
3 3446655778899101011111212
2
13
14
13
141515161617171818191920202121222223232424
3CV2010
Packet Status
Packet 25 26 Packet
Status
25 26 Status
25x 26x
1 3 5 7
2 4 6
Power/Self Test
8
VCN Services
Switch 10
60 C
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Figure 54
Software Download Network Configuration
Existing Phone Lines
Punch-Down Block
VCN Servic es Switc h 1 0
24 Ports Concentrator
3
Punch-Down Block
Phone Line
JUHHQ
#HQDEOHG /#OLQN#2.
IODVKLQJ#JU H HQ
#GLVDEO HG/#OL QN #2.
9[:[
45[
RII
#OLQN#IDLO
6
6779988::;;<<4343444445454455 6
46464747484849494:4:4;4;4<4<535354545555565657
57
4;[4<[4[46[
57[
3C16980
VCN Ac cess Concentrator
3DFNHW
6WDWXV
3DFNHW
6WDWXV
4
5
7
3RZHU26HOI#7H VW
8
:9;
6XSHU6WDFN#,, 6ZLWFK#6633
PBX
User
Computer
Ethernet
Ethernet
Software Download
VCN A ccess P o int
Regular
Phone
Cable
VCN
Access P oint
Manage m ent
Computer
In the
4
VCN AP Main Menu
Software Download Menu
(Figure 30 .
) type 8, and press <Enter> for the
A warning appears, followed by a prompt asking if you want to proceed (Figure 55
Figure 55
*************** WARNING ***************************************** *Choosing this menu will discontinue normal VCN AP operation. * *VDSL line will be stopped. Reset board to renew VDSL connection* *****************************************************************
Do you want to proceed (YES/[NO])? :
To proceed, type
5
(Figure 56
).
Remote software Download Warning and Prompt
and press <Enter>; the
yes
Software Download Menu
) appears.
Remote Software Download 61
Figure 56
1. AP Version
2. Download LC
3. Download AP
4. LC Downloading State
5. AP Downloading State
6. Change the VLAN Id for Downloading
7. Reset Board
Please enter your choice:
To download software to LCs do as follows:
6
Check the VLAN IDs of the VCN AP and the VCN AC.
a
To change the VLAN ID of the AP to make it the same as the AC, type
b
6 in the
Software Download Menu
Software Download Menu
----------------------
Software Download Menu
and press <Enter>. The following
dialog appears:
Current VLAN ID for downloading:
Please enter new VLAN ID (1 - 4094, 0 for none):
Enter the AC VLAN ID and press <Enter>. The message appears:
c
Action has been done.
Software Download will not occur if the VCN AP is not in the same VLAN as the VCN AC.
In the
d
Software Download Menu
Downloading State Table
appears (Figure 57
2 and press <Enter>. The
, type
).
LC
62 C
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Figure 57
LC downloading state table
-----------------------------------------------------­| LC | Downloading || LC | Downloading | | number | status || number | status |
-----------------------------------------------------­| 1 | Not downloaded || 13 | Not downloaded | | 2 | Not downloaded || 14 | Not downloaded | | 3 | Not downloaded || 15 | Not downloaded | | 4 | Not downloaded || 16 | Not downloaded | | 5 | Not downloaded || 17 | Not downloaded | | 6 | Not downloaded || 18 | Not downloaded | | 7 | Not downloaded || 19 | Not downloaded | | 8 | Not downloaded || 20 | Not downloaded | | 9 | Not downloaded || 21 | Not downloaded | | 10 | Not downloaded || 22 | Not downloaded | | 11 | Not downloaded || 23 | Not downloaded | | 12 | Not downloaded || 24 | Not downloaded |
------------------------------------------------------
Enter LC number (1 - 24, 0 for all, R for return):
At the end of the
e
The LC Downloading State Table
LC Downloading State Table
, do one of the
following:
Type the number of an LC to receive the software download and press
<Enter>.
The downloading messages and the downloading results table appear (Figure 58
Ty p e 0 and press <Enter> to download the software to all LC cards.
).
The downloading messages and the downloading results table appear (Figure 58
Ty p e r and press <Enter> to cancel.
The VCN AP
).
Software Download Menu
(Figure 56
) reappears.
Remote Software Download 63
Figure 58
Begin sending version...
Sending version complete
Waiting for acknowledge...
Downloading complete.
Downloading complete. See results in the table:
-----------------------------------------------------­| LC | Downloading || LC | Downloading | | number | status || number | status |
-----------------------------------------------------­| 1 | Successful || 13 | Successful | | 2 | Successful || 14 | Successful | | 3 | Successful || 15 | Successful | | 4 | Successful || 16 | Successful | | 5 | Successful || 17 | Successful | | 6 | Successful || 18 | Successful | | 7 | Successful || 19 | Successful | | 8 | Successful || 20 | Successful | | 9 | Successful || 21 | Successful | | 10 | Successful || 22 | Successful | | 11 | Successful || 23 | Successful | | 12 | Successful || 24 | Successful |
------------------------------------------------------
LC Downloading Results
Press ENTER to continue ...
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Downloading Software to VCN APs:
To download software to VCN APs do as follows:
Perform step 1
1
Check the VLAN IDs of the downloading VCN AP and the receiving VCN
2
through step 5 above.
APs.
To change the VLAN ID of the AP to make it the same as the receiving
3
VCN APs, type
in the VCN AP
6
Software Download Menu
and press
<Enter>. The following dialog appears:
Current VLAN ID for downloading:
Please enter new VLAN ID (1 - 4094, 0 for none):
Enter the AP VLAN ID and press <Enter>. The message appears:
4
Action has been done.
Software Download will not occur if the downloading VCN AP is not in the same VLAN as the receiving VCN APs.
Software Download Menu
In the
5
Downloading State Table
type
and press <Enter>. The
3
appears (Figure 59
).
AP
Remote Software Download 65
Figure 59
AP downloading state table
-----------------------------------------------------­| AP | Downloading || AP | Downloading | | number | status || number | status |
-----------------------------------------------------­| 1 | Not downloaded || 13 | Not downloaded | | 2 | Not downloaded || 14 | Not downloaded | | 3 | Not downloaded || 15 | Not downloaded | | 4 | Not downloaded || 16 | Not downloaded | | 5 | Not downloaded || 17 | Not downloaded | | 6 | Not downloaded || 18 | Not downloaded | | 7 | Not downloaded || 19 | Not downloaded | | 8 | Not downloaded || 20 | Not downloaded | | 9 | Not downloaded || 21 | Not downloaded | | 10 | Not downloaded || 22 | Not downloaded | | 11 | Not downloaded || 23 | Not downloaded | | 12 | Not downloaded || 24 | Not downloaded |
------------------------------------------------------
Enter AP number (1 - 24, 0 for all, R for return):
6
At the end of the
AP Downloading State Table
AP Downloading State Table
, do one of the following:
Type the number of VCN AP to receive the software download and press <Enter>.
The downloading messages and the downloading results table appear (Figure 60
Ty p e 0 to download software to all VCN AP cards and press <Enter>.
).
The downloading messages and the downloading results table appear (Figure 60
Ty p e r and press <Enter> to cancel.
The VCN AP
).
Software Download Menu
(Figure 56
) reappears.
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Figure 60
Begin sending version...
Sending version complete
Waiting for acknowledge...
Downloading complete.
Downloading complete. See results in the table:
-----------------------------------------------------­| AP | Downloading || AP | Downloading | | number | status || number | status |
-----------------------------------------------------­| 1 | Successful || 13 | Successful | | 2 | Successful || 14 | Failed | | 3 | Successful || 15 | Failed | | 4 | Successful || 16 | Failed | | 5 | Failed || 17 | Failed | | 6 | Failed || 18 | Successful | | 7 | Failed || 19 | Failed | | 8 | Failed || 20 | Successful | | 9 | Failed || 21 | Successful | | 10 | Failed || 22 | Successful | | 11 | Failed || 23 | Successful | | 12 | Failed || 24 | Successful |
------------------------------------------------------
AP Downloading Results
Press ENTER to continue ...
Check Software Download for the LC Cards:
To check the software download results in the LC cards, type <Enter> in the
Software Download Menu
. The LC Downloading State
Table appears.
Check Software Download for the VCN APs:
To check the software download results of the VCN APs, type <Enter> in the
Software Download Menu
. The VCN AP Downloading
State appears.
and press
4
and press
5
Remote Software Download 67
Solving Problems in
Remote Software
Download
If the LC Downloading Results or more Line Cards or the AP Downloading Results
in Figure 58 show download failed for one
in Figure 60 show download failed for one or more APs, follow the procedures this section to solve the problems.
Download Failed for all LCs and all VCN APs
Check the following:
Downloading VCN AP software version.
If the version is not 3.5 or later, locally download version 3.5 or the later version to the VCN AP. Refer to Appendix C
, Loading Software
Through Local Access.
Downloading VCN AP connections to the network.
Check the configuration of your switch and perform the following
step:
Run the ConfApp program on the switch or perform manual configuration according to Visitor and Community Based Networking Access Concentrator Service Manual, the section Configuring the
Ethernet Switch for the VCN Access Concentrator.
Perform remote software download again.
Download Failed for One or More Line Cards but not All
Check the following:
Software version of the failed LCs.
If the version is not 3.5 or later, locally download the current software. Refer to the Visitor and Community Based Networking Access Concentrator Service Manual. Remote software download need not be performed after this step.
Check the physical path between the downloading VCN AP and the
VCN AC.
Check the configuration of your switch and perform the following
steps:
Run the ConfApp program on the switch or perform manual configuration according to Visitor and Community Based Networking Access Concentrator Service Manual, the section Configuring the
Ethernet Switch for the VCN Access Concentrator.
Perform remote software download again.
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Download Failed for One or More VCN APs but not All
Check the following:
AP software version of the failed APs.
If the version is not 3.0 or later, locally download the current software version to the VCN AP. Refer to Appendix C
Through Local Access. Remote software download need not be
performed after this step.
Check the physical path between the downloading VCN AP and the
VCN APs.
Check the VDSL connection between the failed APs and the VCN AC.
Check the configuration of your switch and perform the following
steps:
Run the ConfApp program on the switch or perform manual configuration according to Chapter 2
Access, section Configuring the Ethernet Switch for the VCN Access Concentrator.
Perform remote software download again.
, Loading Software
, Using the Local Management
A
ROUBLESHOOTING
T
This appendix explains how to identify and correct problems, and how to perform related diagnostic tasks.
If you have problems that are not addressed in this chapter, contact 3Com Technical Support or your service person. Refer to Appendix F technical support information.
for

Power-on Self Test (POST)

When the VCN Access Point is plugged-in, the VCN AP immediately starts the power-on self test (POST) sequence as indicated by the power LED flashing in green. If the VCN AP is not powered, the power LED remains OFF. Check the power connections and the ac/dc adapter.
The power-on self test verifies that every component of the VCN AP is fully functional. The power-on self test lasts for 30 seconds at the most, during which time it is orange. If the power-on self test is successfully completed, the power a VCN AP failure, the power LED remains orange. In this case, contact 3Com technical support; refer to Appendix F
Use the front panel LEDs to determine each port’s status:
Ta b le 7
State Ethernet Line Power Notes
Off - - Off VCN AP is not connected to a
Power-on - - Orange Test is in progress
Power-on - - Off VCN AP failed
Determining VCN AP Status During POST
LED turns green. If the power-on self test detected
, Technical Support.
power source or failed.
70 A
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Using Front Panel LEDs to Solve Problems

This section describes the use of the LEDs to solve problems. Figure 61 displays the VCN AP LED indicators.
Figure 61
The VCN AP Unit Front View
Fax-ModemETHERNET
Ethernet LED
Line
Power
Line LED
Power LE D
Ta b l e 8 describes the LEDs.
Ta b le 8
The VCN AP LEDs
LED State Indicates
Ethernet Green
Line OFF
Green
Flashing Green
Power OFF
Orange First 30 seconds after connection to the power
Green The
VCN AP VCN AP VCN AP
Data transmission to or from the
VCN AP
main, power-on-self-test (POST) in progress.
After 30 seconds, POST failed.
connected a PC.
is not connected to the line.
connected to the
is not powered.
VCN AP
is functioning.
VCN AC.
VCN AC.
Using Front Panel LEDs to Solve Problems 71
Use the front panel LEDs to determine the VCN AP status after POST.
Ta b l e 9
Ta b le 9 Determining VCN AP status from the LED Indications after POST
provides detailed information summarized in Ta b l e 1 0 .
State Ethernet Line Power Notes
OFF OFF OFF OFF VCN AP is not
connected to a power source.
Power-on ON if user
data cable is connected.
OFF if user cable is not connected.
Voice Call Not
Applicable (NA)
OFF if the line is not connected. If the line is connected, it is steady green for 2 minutes after POST; After 2 minutes it can be steady green if there is no traffic, and flashing green if there is traffic. The above states are normal.
If the LED is not steady green during the first 2 minutes after POST, there is a communication problem.
Any other appearance after the first 2 minutes indicates the presence of a problem.
NA NA Connection to power
During POST, the LED is orange. If the LED remains orange after 30 seconds, the VCN AP is faulty and should be replaced.
If the Power LED remains orange after 30 seconds (POST), the technician uses the RS-232 LMI connector and terminal emulation to view the VCN AP diagnostic messages on his terminal screen.
is not needed to make a voice call.
An Ethernet connection is not required.
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Ta b le 9
Determining VCN AP status from the LED Indications after POST
State Ethernet Line Power Notes
Fax/Modem Call
Not Applicable (NA)
NA NA No power is needed to
make a fax/modem call.
An Ethernet connection is not required.
Data Transfer from PC
ON Flashing in
green
ON Indicates data is
passing through the VCN AP.
There is a valid connection between the VCN AP and the user
Data is passing between the user PC and the network through the VCN AP.
PC.
Using Front Panel LEDs to Solve Problems 73
Ta b le 9
Determining VCN AP status from the LED Indications after POST
State Ethernet Line Power Notes
VCN AP Failure Indicated
OFF after connection: Possible causes:
faulty
power adapter
problem
Replace ac/dc adapter and try again. If the problem is eliminated, the problem was the adapter. If not, the problem is in the VCN AP; replace it and send it to 3Com.
in the VCN AP
OFF and the user data cable is connected.
ON (green) One of the items
below failed:
user data cable
user PC NIC
VCN AP
Try replacing each of the first 2 items. If the problem is not eliminated, the problem is in the VCN AP; replace it and send it to 3Com.
The Line LED does not turn steady green during 2 minutes after POST
Possible causes are:
no connection
wiring
VCN AC
punch down
Power the VCN AP OFF, then ON. If the VCN AP starts properly, the problem is solved. If not, replace it and send it to 3Com.
block/patch panel
74 A
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Using a PC Terminal Emulator to Solve Problems

Table 10
Problem Solution
The power LED remains OFF after power connection
The power LED remains orange longer than 30 seconds.
The Line LED is not green.
The Ethernet LED is OFF.
Summary of VCN AP LED Indications after POST
Check the power connections and the ac/dc adapter. Plug in the power cable if necessary.
A hardware fault has been detected in the VCN AP.
Power the VCN AP OFF and then ON. If the problem persists, contact 3Com.
Check the line connection. If the line connections are appropriate, the VCN AP is not functioning.
Power the VCN AP OFF and then ON. If the problem persists, contact 3Com.
Check the Ethernet cable. The problem could be in your NIC or in the VCN AP.
Power the VCN AP OFF and then ON. If the problem persists, contact 3Com.
Refer to Appendix E for setting the parameters of a terminal emulation program. Then refer to Chapter 4
Using the Local Management Accessfor connecting the management PC to the VCN AP to operate the management menus.
Using a PC Terminal Emulator to Solve Problems 75
Ethernet Traffic
Counts
The normal frame counters indicate traffic between the VCN AP and user PC. Some errored frame counters indicate fatal errors, requiring replacement of the VCN AP, Ethernet cable or the user’s PC Network Interface Card (NIC).
The following table depicts normal count indications of the Ethernet traffic counters and probable causes for abnormal indications.
Table 11 Ethernet Traffic Counters
Counter Counts the Frames Normal Count
Tx frame Sent via the Ethernet
Port.
Rx frame Received via the
Ethernet port.
Rx collision The VCN AP was
unable to receive due to collisions on the line
Increases as traffic is generated
Increases as traffic is generated
Zero or steady. For non-zero count, reset the counter and wait a reasonable period of time to check for no significant increase.
CRC error, overrun,
Containing receive fatal errors.
Zero Hardware failure: VCN
Alignment error, frame too long, frame too short
Abnormal Count Indicates
No data transmitted; hardware problem:
VCN AP Tx channel
User Ethernet cable
No VCN AP connection
No data received; hardware problem:
VCN AP Rx channel
User Ethernet cable
No VCN AP connection
VCN AP port hardware failure.
AP, Ethernet cable or PC NIC

HDLC Traffic Counts

Normal frame counts indicate traffic between the VCN AP and the VCN AC. Some errored frame counters indicate fatal errors, requiring replacement of the VCN AP (failure between the analog front-end section and the CPU section), or handling of environmental noise over the line.
76 A
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The following table depicts normal counter indications and probable causes of abnormal counter indications.
Summary of
Abnormal Indications
from Traffic Counts
Table 12
Counter Counts the Frames Normal Count
Tx frames Sent via the
Rx frames Received via
Tx discarded The VCN AP was
Rx discarded The VCN AP was
Overrun, Not mine, DPLL error, Abort sequence, Non aligned, CRC error, Frame too long
HDLC Traffic Count Indicators
telephone line
telephone line
unable to send
unable to receive
Containing Receive fatal errors
Abnormal count indicates
High No transmit data
High No receive data
Low VCN AP software
failure
Low, unless the traffic is bi-directional
Zero/low VCN AP hardware
VCN AP software limitation
failure if abnormal count is growing significantly by the minute
The following provides a quick reference to problem identification by using frame counts:
Table 13
Summary of Problems Indicated by Counts of Errored Frames

Error Messages

Problem Solution
The following Ethernet traffic counters are growing significantly: CRC error, Overrun, Alignment error, Frame too long, or Frame too short.
The following HDLC traffic counters are growing significantly: Tx error, Overrun, Not mine, DPLL error, Abort sequence, Nonaligned, CRC error, Frame too long.
Replace in this order: the VCN AP, or the Ethernet cable, or the PC NIC.
Replace the VCN AP.
There are two types of error messages that appear on the management terminal screen:
Advisory
Using a PC Terminal Emulator to Solve Problems 77
The only error message of this type is Wrong entry! It appears when the user enters the wrong response to a menu. The user solves the problem by re-entering his response.
When a user disconnects the management terminal from the LMI port and later reconnects, the LMI menu system stays in the same state and expects the same user input after reconnect. During reconnect the user may press the wrong sequence of keys and cause displayed on the screen. Type
0
and press <Enter> a few times until the
Wrong entry!
to be
desired menu appears.
Fatal
Almost all error messages that do appear are fatal. Contact Technical Support when an error message, except for most common fatal error messages are listed in Ta bl e 1 4
Table 14 Fatal Error Messages
Error message Significance User Action
FATAL ERROR: SDRAM test failed!
FATAL ERROR: failed FLASH access!
Ethernet selftest failed! Hardware error during
HDLC selftest failed! Hardware error during
I2C selftest failed! Hardware error during
DRAM data bus test fail! Hardware error Contact Technical Support.
DRAM address bus test fail! Hardware error Contact Technical Support.
Hardware error during boot-up
Hardware error during boot-up
initialization
initialization
initialization
Wrong entry!, appears. The
.
Contact Technical Support.
Contact Technical Support.
Contact Technical Support.
Contact Technical Support.
Contact Technical Support.
Boot-up and initialization are processes that occur when the VCN AP is reset. Reset occurs when the user selects
Reset board
from the menu
system.
78 A
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ROUBLESHOOTING
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B
RODUCT
P
Line Data Rate Up to 10 Mbps, symmetric
Range up to 4000 ft
Cabling CAT1 to CAT5
Voice Dial Tone, Toll Quality, PBX features support
Power requirements
VCN AP Mains 90-260 ac, 47-63 Hz, 6 Watt maximum
ac/dc adapter 3.3 Vdc /1.5 A, 5 Vdc /150 mA, -5 Vdc /50 mA
Standards Compliance
Safety UL 1950
EMC FCC Part 15 Class B
Ethernet IEEE 802.3
Management interface 1 RS-232 port
Environmental
Operating Temperature 0°- 50°C
Relative humidity 95% non-condensing
PECIFICATION
S
C-UL, CSA22.#950
EN60950
IEC950
TS-001
AS/NZS 3548
VCCI Class B
CISPR22 Class B
CAN/CSA-CISPR22 Class B
EN 55022 Class B, Amendment A1, Amendment A2
EN 55024
IEC 61000-4-2 through 61000-4-6, IEC 61000-4-11
80 A
PPENDIX
RODUCT SPECIFICATION
B: P
OADING
L
OFTWARE
S
HROUGH
T
C
OCAL
L
This appendix describes how to load a new software release into the VCN AP through the LMA port.
Loading software requires using a PC in terminal emulation mode. Refer to Appendix E emulation procedures.
To load software into an VCN AP, perform the following steps:
Attach your terminal emulating PC to the LMA port on the VCN AP.
1
Press any key to view the VCN AP Main Menu on the terminal screen. If
2
another menu appears, press 0 (zero) and ENTER repeatedly until the Main Menu appears.
In the Main Menu (Figure 62
3
CCESS
A
Terminal Emulation Settings for a description of terminal
) type 3, and press ENTER.
82 A
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OADING SOFTWARE THROUGH LOCAL ACCESS
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Figure 62
VCN AP Main Menu
------------------
VCN AP Main Menu
1. VCN AP Version
2. Debug Menu
3. Management Menu
4. VDSL control
5. Test control
6. Flash actions
7. VCN AP Configuration
8. Software Download Menu
0. Exit
Please enter your choice:
The Management Menu appears:
Figure 63
Management Menu
-----------------
VCN AP Management Menu
1. Ethernet menu
2. HDLC menu
3. Tasks info menu
4. Reset all counters
5. Reset board
0. Return to main menu
Please enter your choice:
In the Management Menu type
4
Figure 64
Figure 64
:
appears:
Confirm Reset Board
This action will reset the whole board!
Do you want to proceed (Y/[N])? :
to reset the VCN AP. The dialog in
5
Ty p e
5
Y to reset. The screen in Figure 65 appears:
Figure 65 Software Download Option
********************************************************
3Com NCD. (C) 10Base-S Boot loader V2.00 Date: Jun 15 1999, Time: 16:13:31
CPE modem Operation Mode Selector. Enter:
S - for Serial loading OR D - for Debug operation OR F - for SW execution from the Flash OR C - for MAC address programming.
********************************************************
Ty p e
6
S; the downloading message appears (Figure 71).
83
The option of
F in the Software Download Menu (Figure 65), is the
default; if the Software Download Menu displays for 5 seconds, execution from the flash automatically begins. The option of
D is for
debug purposes only and should only be carried out by system developers. Option
C is for entering the MAC address. This is normally
performed in the factory.
Figure 66 Software Downloading Message
****************************** Load procedure via Serial Line. ******************************
Waiting for downloading...
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C: L
In the
7
Figure 67
Procomm
window (Figure 67
Procomm Plus Terminal Screen
), select
Data
>
Send File
(Figure 68).
85
Figure 68
Procomm Plus Data > Send File Menu
The screen in Figure 69 appears.
Figure 69
Send File Using ASCII Screen
8
Select the correct file and click
Open
.
86 A
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OADING SOFTWARE THROUGH LOCAL ACCESS
C: L
While the file is downloading, the status window in Figure 70 appears:
Figure 70
Send File Status Window
The VCN AP software is downloaded to the flash memory in the VCN AP, and the messages in Figure 71
and Figure 72 appear:
87
Figure 71
Start saving to the FLASH! Sector passed number-12 Sector passed number-13 Sector passed number-14 Sector passed number-15 Sector passed number-16 Sector passed number-17 Sector passed number-18 Sector passed number-19 Sector passed number-20 Sector passed number-21 Sector passed number-22 Sector passed number-23 Flash erased OK! Storage2 has been erased! Application buffer address - 99e8 Last write address - 2940004 Last write data - f Last written data - f Data counter - 1 Indicator has been written! Application buffer address - 160000 Last write address - 2940008 Last write data - 0 Last written data - 0 Data counter - 393211 SW image has been saved! Application buffer address - 66d0 Last write address - 2940000 Last write data - 55aa Last written data - 55aa Data counter - 1 Signature has been written! The SW version has been saved to the FLASH! SW image is being executed!!! *****************************
Software Downloading Message
Start executing main! Watchdog initialized OK !
88 A
PPENDIX
OADING SOFTWARE THROUGH LOCAL ACCESS
C: L
Figure 72
HDLC selftest passed! Ethernet selftest passed! I2C selftest passed! VDSL selftest passed! MNG task created! MNG task started! LED task created! LED task started! DWN task created! DWN task started! LMA task created LMA task started
The
Self-Test Messages
prompt appears.
Login
After the software download, the unit starts to execute the software from the flash memory.
If, instead of the messages in Figure 71
, one of the following messages
appear, the software load failed:
Flash Error
SW image validation failed
Action: Try to load the software again. If the problem persists, replace
the VCN AP.
D
PIN A
ABLE
C
This appendix describes the pin assignments for the LMA cable, see
Figure 73
SSIGNMENTS FOR
. The cable is used in an RS-232 connection.
LMA

Connector for Local Management Te r m i n a l

Figure 73
The connector for the local management (LM) terminal emulating computer is displayed in Figure 74 female connector. Ta bl e 1 5
Figure 74
Table 15
Pin No. Assignment
1
2
3
4
5
Local Management Access Cable
describes the pin assignments.
DB 9-Pin Female Connector
5
Not used
Tx
Rx
Not used
Ground (GND)
3
4
7
896
LM Terminal Connector Pin Assignment
1
2
. The connector consists of a DB 9-pin
90 A
PPENDIX
D: PIN A
SSIGNMENTS FOR
LMA C
ABLE
Connector for the
LMA Port of the
VCN AP
Table 15
Pin No. Assignment
6 Not used
7 Not used
8 Not used
9 Not used
LM Terminal Connector Pin Assignment
The connector for the LMA port of the VCN AP is described below. The connector consists of a MiniDIN 4-pin male connector, see Figure 75
Ta b l e 1 6
Figure 75
3 1
Table 16
Pin No. Assignment
1 Tx
2 Rx
3 GND
4 GND
describes the pin assignments.
MiniDIN 4-Pin Connector Pin Numbering
4
2
LMA Port Connector Pin Assignment
.
Local Management Cable Wiring 91

Local Management Cable Wiring

This section describes the connection of the pins in the LM terminal connector to the pins in the VCN AP LMA port connector within the cable. Figure 76
depicts the connections in the cable. Ta b l e 1 7 lists the pin connections for the wires in the cable. The Tx and Rx directions relate to the VCN AP, not the LM terminal.
Figure 76 LM Cable Wiring
3 1
534
98 6
Table 17 LM Cable Connections
MiniDIN Pin No.
1 2
2 3
3 5
4 5
DB-9 Pin No.
4
2
21
7
Assignment
Tx
Rx
GND
GND
92 A
PPENDIX
D: PIN A
SSIGNMENTS FOR
LMA C
ABLE
E
ERMINAL
T
This appendix describes the terminal emulation settings for Procomm Plus. Procomm Plus is presented here as an example of a terminal emulation program; you can use another program with similar settings.
MULATION
E
ETTINGS
S

Defining the Terminal Emulation Settings

To define the terminal emulation settings:
Start the Procomm Plus terminal emulator through one of the procedures
1
below:
Double-click the Procomm Plus shortcut if it appears on the PC
Desktop.
or
Select Start > Programs > Procomm Plus.
The Procomm Plus Terminal screen in Figure 77
appears.
94 A
PPENDIX
ERMINAL EMULATION SETTINGS
E: T
Figure 77
Procomm Plus Terminal Screen
Configuration Bar
Terminal type

Establishing Terminal Settings

Using the
Configuration Bar
Data Code PC Communication
Port
Bits per Second
ASCII parameters
Terminal settings can be established in one of two ways:

Using the Configuration Bar

Using the Menu Bar
To establish terminal settings using the configuration bar:
From the Configuration Bar, establish the settings listed in Ta bl e 1 8
1
Table 18
No From Left Function Settings
Procomm Plus Settings
1 Type of Terminal ANSI BBS
.
Establishing Terminal Settings 95
Table 18 Procomm Plus Settings (continued)
No From Left Function Settings
2 3
4 5
If necessary, click the appropriate button to display a list of all possible
2
Data Code ASCII
PC serial communication port
Bits per second 115200
ASCII parameters 8-N-1:
COMx
8 bits
No parity
1 stop bit
settings and select the required settings.

Using the Menu Bar

To establish terminal settings using the menu bar:
Select
1
Options
window as shown in Figure 78
Figure 78 Procomm Setup Window
>
System Options > Modem Connection
opens.
. The Setup
2
Select
System Tab
.
96 A
PPENDIX
ERMINAL EMULATION SETTINGS
E: T
From the Current Modem/Connection window, select
3
connect-ComX
Click
4
Modem/Connection Properties
window as shown in Figure 79
Figure 79
From the
5
Set the following parameters:
6
Parity
, where X represents the number of your com port.
. The
Modem/Connection Properties
opens.
Connection Properties Window
Baud rate
window, select 115200.
: None.
direct
Data bits
Stop bits
Flow control
: 8.
: 1.
Use hardware flow control
Use software flow control
is the default.
Set Use software flow control if your computer works better with software flow control.
Click OK.
7
Click OK.
8
Your terminal is now ready for local management functions and for downloading software.
F
ECHNICAL
T
3Com provides easy access to technical support information through a variety of services. This appendix describes these services.
Information contained in this appendix is correct at time of publication. For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site.
UPPORT
S

Online Technical Services

World Wide Web Site

3Com
Knowledgebase Web
Services
3Com offers worldwide product support 24 hours a day, 7 days a week, through the following online systems:
World Wide Web Site

3Com Knowledgebase Web Services

3Com FTP Site
3Com Bulletin Board Service
3Com Facts Automated Fax Service
To access the latest networking information on the 3Com Corporation World Wide Web site, enter this URL into your Internet browser:
http://www.3com.com/
This service provides access to online support information such as technical documentation and software, as well as support options that range from technical education to maintenance and professional services.
This interactive tool contains technical product information compiled by 3Com expert technical engineers around the globe. Located on the World Wide Web at http://knowledgebase.3com.com 3Com customers and partners complementary, round-the-clock access to technical information on most 3Com products.
, this service gives all
98 A
PPENDIX
ECHNICAL SUPPORT
F: T

3Com FTP Site

3Com Bulletin Board
Service
Download drivers, patches, software, and MIBs across the Internet from the 3Com public FTP site. This service is available 24 hours a day, 7 days a week.
To connect to the 3Com FTP site, enter the following information into your FTP client:
Hostname:
Username:
Password:
ftp.3com.com
anonymous
<your Internet e-mail address>
You do not need a user name and password with Web browser software such as Netscape Navigator and Internet Explorer.
The 3Com BBS contains patches, software, and drivers for 3Com products. This service is available through analog modem or digital modem (ISDN) 24 hours a day, 7 days a week.
Access by Analog Modem
To reach the service by modem, set your modem to 8 data bits, no parity, and 1 stop bit. Call the telephone number nearest you:
Country Data Rate Telephone Number
Australia Up to 14,400 bps 61 2 9955 2073
Brazil Up to 28,800 bps 55 11 5181 9666
France Up to 14,400 bps 33 1 6986 6954
Germany Up to 28,800 bps 4989 62732 188
Hong Kong Up to 14,400 bps 852 2537 5601
Italy Up to 14,400 bps 39 2 27300680
Japan Up to 14,400 bps 81 3 5977 7977
Mexico Up to 28,800 bps 52 5 520 7835
P.R. of China Up to 14,400 bps 86 10 684 92351
Taiwan, R.O.C. Up to 14,400 bps 886 2 377 5840
U.K. Up to 28,800 bps 44 1442 438278
U.S.A. Up to 53,333 bps 1 847 262 6000
Support from Your Network Supplier 99
Access by Digital Modem
ISDN users can dial in to the 3Com BBS using a digital modem for fast access up to 64 Kbps. To access the 3Com BBS using ISDN, call the following number:
1 847 262 6000
3Com Facts
Automated Fax
Service

Support from Your Network Supplier

The 3Com Facts automated fax service provides technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, 7 days a week.
Call 3Com Facts using your Touch-Tone telephone:
1 408 727 7021
If you require additional assistance, contact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services.
When you contact your network supplier for assistance, have the following information ready:
Product model name, part number, and serial number
A list of system hardware and software, including revision levels
Diagnostic error messages
Details about recent configuration changes, if applicable
If you are unable to contact your network supplier, see the following section on how to contact 3Com.

Support from 3Com

If you are unable to obtain assistance from the 3Com online technical resources or from your network supplier, 3Com offers technical telephone support services. To find out more about your support options, call the 3Com technical telephone support phone number at the location nearest you.
100 A
PPENDIX
ECHNICAL SUPPORT
F: T
When you contact 3Com for assistance, have the following information ready:
Product model name, part number, and serial number
A list of system hardware and software, including revision levels
Diagnostic error messages
Details about recent configuration changes, if applicable
Here is a list of worldwide technical telephone support numbers:
Country Telephone Number Country Telephone Number
Asia, Pacific Rim
Australia Hong Kong India Indonesia Japan Malaysia New Zealand Pakistan Philippines
Europe
From anywhere in Europe, call:
Europe, South Africa, and Middle East
From the following countries, you may use the toll-free numbers:
Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy
Latin America
Argentina Brazil Chile Colombia
North America
1 800 678 515 800 933 486 +61 2 9937 5085 001 800 61 009 0031 61 6439 1800 801 777 0800 446 398 +61 2 9937 5085 1235 61 266 2602
+31 (0)30 6029900 phone +31 (0)30 6029999 fax
0800 297468 0800 71429 800 17309 0800 113153 0800 917959 0800 1821502 00800 12813 1800 553117 1800 9453794 1678 79489
AT&T +800 666 5065 0800 13 3266 1230 020 0645 98012 2127
1 800 NET 3Com (1 800 638 3266)
Enterprise Customers: 1 800 876-3266
P.R. of China
Singapore S. Korea
From anywhere in S. Korea:
From Seoul: Taiwan, R.O.C. Thailand
Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U.K.
Mexico Peru Puerto Rico Venezuela
10800 61 00137 or 021 6350 1590 800 6161 463
00798 611 2230 (0)2 3455 6455 0080 611 261 001 800 611 2000
0800 0227788 800 11376 00800 3111206 0800 831416 0800 995014 900 983125 020 795482 0800 55 3072 0800 966197
01 800 CARE (01 800 2273) AT&T +800 666 5065 800 666 5065 AT&T +800 666 5065
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