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3Com
1


3Com
�
VCX V7111 Fast Track
Installation Guide
Version 4.4



















http://www.3com.com





Part Number 900-0259-01
Published June 2005
3Com VCX V7111 Fast Track Installation Guide
2
3Com Corporation, 350 Campus Drive, Marlborough MA 01752-3064
Copyright � 2004, 2005, 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 hardcopy 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 3Coms 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 guide.

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

3Com, the 3Com logo, NBX, and SuperStack are registered trademarks of 3Com Corporation. NBX NetSet, pcXset, and VCX
are trademarks of 3Com Corporation.

Adobe is a trademark and Adobe Acrobat is a registered trademark of Adobe Systems Incorporated. Microsoft, Windows,
Windows 2000, Windows NT, and Microsoft Word are registered trademarks of Microsoft Corporation.
All other company and product names may be trademarks of the respective companies with which they are associated.
3Com VCX V7111 Fast Track Installation Guide


3
C
ONTENTS

A
BOUT
T
HIS
G
UIDE
5

How to Use This Guide 5

Conventions 6

Related Documentation 6

Regulatory Information 6

General 6

FCC Notice to Users 7

Declaration of Conformity 8

Documentation Comments 9

Readers Notes 10

C
HAPTER
1:

Q
UICK
S
TART
11

C
HAPTER
2:

I
NSTALLING THE
VCX

V7111

13

Unpacking 13

Package Contents 13

Mounting the VCX V7111 14

Mounting the VCX V7111 on a Desktop 14

Installing the 2, 4, or 8 Port VCX V7111 in a 19-Inch Rack 15

Installing the 24 Port VCX V7111 in a 19-Inch Rack 16

Mounting the 2, 4, or 8 Port VCX V7111 on a Wall 17

Cabling the VCX V7111 18

VCX V7111 Rear Panel Connectors 18

Cables and Cabling Procedure 20

Installing the VCX V7111 2, 4, or 8FXS Life Line 23

C
HAPTER
3:

C
ONFIGURING THE
VCX

V7111

27

Assigning the VCX V7111 IP Address 27

Assigning the IP Address Using HTTP 28

Assigning the IP Address Using BootP 28

Assigning the IP Address via the RS-232 Port 30

3Com VCX V7111 Fast Track Installation Guide
4
Restoring Networking Parameters to their Initial State 31

Accessing the Embedded Web Server 31

Configuring the VCX V7111 Basic Control Protocol Parameters 32

Configuring Basic MGCP Parameters 33

Configuring Basic H.323 Parameters 34

Configuring Basic SIP Parameters 36

Example of Connecting Two 8FXS Devices 39

C
HAPTER
4:

C
HANGING THE
VCX

V7111

P
ASSWORD AND
U
SERNAME
41

C
HAPTER
5:

R
ESTORING AND
B
ACKING
U
P THE
VCX

V7111

C
ONFIGURATION
43

C
HAPTER
6:

M
ONITORING THE
VCX

V7111

45

Monitoring the VCX V7111 Front Panel LEDs 45

VCX V7111 Rear Panel LEDs 46

Monitoring the VCX V7111 Channels 46

C
HAPTER
7:

U
PGRADING THE
VCX

V7111

49

Software Upgrade Wizard 49

Updating the Auxiliary Files 54

C
HAPTER
8:

VCX

V7111

IP<->PBX

T
EST
E
XAMPLE
57

Analog Line Interconnect via the IP Network 57

A calling B scenario (automatic dialing set in the ini file) 57

B calling A scenario (one-stage dialing set in the
ini
file) 57
3Com VCX V7111 Fast Track Installation Guide


5
A
BOUT
T
HIS
G
UIDE

This Fast Track Installation Guide describes the installation of the following 3Com
�

VCX
V7111 SIP products:
The 24-port VCX V7111 24FXS
The eight-port VCX V7111 8FXS and 8FXO
The four-port VCX V7111 4FXS and 4FXO
The two port VCX V7111 2FXS
Information contained in this document is believed to be accurate and reliable at the time of
printing. However, because of on-going product improvements and revisions, 3Com cannot
guarantee the accuracy of printed material after the Date Published nor can it accept
responsibility for errors or omissions. Updates to this document and other documents can be
viewed by registered Technical Support customers.
How to Use This Guide
This book covers these topics:

Chapter 1: Quick Start


Chapter 2: Installing the VCX V7111


Chapter 3: Configuring the VCX V7111


Chapter 4: Changing the VCX V7111 Password and Username


Chapter 5: Restoring and Backing Up the VCX V7111 Configuration


Chapter 6: Monitoring the VCX V7111


Chapter 7: Upgrading the VCX V7111


Chapter 8: VCX V7111 IP<->PBX Test Example

3Com VCX V7111 Fast Track Installation Guide
6
Conventions
Table 1 lists conventions that are used throughout this guide.
Table 1

Notice Icons
Icon Notice
Type
Description

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, device, system,
or network.

Warning
Information that alerts you to potential personal injury
or death.
Related Documentation
The following documents are available on the 3Com Partner Access Web site for the 3Com
VCX V7111 SIP Analog Gateways:

3Com VCX V7111 VoIP SIP Gateways User Manual

3Com VCX V7111 SIP Analog Gateways Release Notes
Regulatory Information
General
This regulatory information document is provided in accordance with standards UL 1950, EN
60950 and 47 CFR, part 15, for the VCX V7111 product family.
The safety status of each port on the device is declared and detailed in the following table:
Table 2

Safety Status Indicators
Ports Safety
Status
Ethernet (100 Base-T)
SELV
FXO TNV-3
FXS TNV-2
3Com VCX V7111 Fast Track Installation Guide


7

SELV
Safety extra low voltage circuit.

TNV-3
Circuit whose normal operating voltages exceeds the limits for an SELV circuit
under normal operating conditions and on which over voltages from Telecommunication
Networks are possible

TNV-2
Circuit whose normal operating voltages exceeds the limits for an SELV circuit
under normal operating conditions and is not subjected to over voltages from
Telecommunication Networks
FCC Notice to Users
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
Consult the dealer or an experienced radio/TV technician for help.
This equipment complies with Part 68 of the FCC rules and the requirements adopted by
ACTA. On the bottom of this equipment is a label