Digium 2400 Series User manual

2400 Series
AEX2400 / TDM2400P
User Manual
601-00013 Rev. C4

Digium, Inc.
445 Jan Davis Drive
Huntsville, AL 35806
United States
Main Number: 1.256.428.6000
Tech Support: 1.256.428.6161
U.S. Toll Free: 1.877.344.4861
Sales: 1.256.428.6262
www.digium.com
www.asterisk.org
www.asterisknow.org
© Digium, Inc. 2013
All rights reserved.
No part of this publication may be copied, distributed, transmitted, transcribed, stored in a
retrieval system, or translated into any human or computer language without the prior written
permission of Digium, Inc.
Digium, Inc. has made every effort to ensure that the instructions contained in this document
are adequate and error free. The manufacturer will, if necessary, explain issues which may
not be covered by this documentation. The manufacturer’s liability for any errors in the
documents is limited to the correction of errors and the aforementioned advisory services.
This document has been prepared for use by professional and properly trained personnel,
and the customer assumes full responsibility when using it.
Adobe and Acrobat are registered trademarks, and Acrobat Reader is a trademark of Adobe
Systems Incorporated.
Asterisk, Digium, Switchvox, and AsteriskNOW are registered trademarks and Asterisk
Business Edition, AsteriskGUI, and Asterisk Appliance are trademarks of Digium, Inc.
Any other trademarks mentioned in the document are the property of their respective owners.
Digium, Inc. Page 2

Compliance Information
Compliance information for this product is available at
http://www.digium.com/ccs-compliance.
Digium, Inc. Page 3

Introduction to 2400 Series Documentation
This manual contains product information for the 2400 Series card. Be
sure to refer to any supplementary documents or release notes that were
shipped with your equipment. The manual is organized in the following
manner:
Chapter/
Appendix Title Description
1 Overview Identifies the card and type of modules you received
with your 2400 Series card. This chapter covers
applications and uses of the 2400 Series card in the
real world.
2 Card Installation Provides instructions for installing the card in your
PC, acquiring correct drivers, and checking device
compatibility.
3 Configuration Provides examples for configuring dial plan options.
4 FXS and FXO
Explained Describes the FXO (Foreign Exchange Office) and FXS (Foreign Exchange Station) modules and their
significance.
5 Troubleshooting Explains resolutions to common problems and
frequently asked questions pertaining to card
installation and usage.
A Pin Assignments Lists the connectors and pin assignments.
B Specifications Details card specifications.
C Glossary and
Acronyms A list of terms and acronyms used throughout this manual.
Digium, Inc. Page 4

Symbol Definitions
Caution statements indicatea condition where damageto the unit or
its configuration could occur if operational procedures are not
followed. To reduce the risk of damage or injury, follow all steps or
procedures as instructed.
The ESD symbol indicates electrostatic sensitive devices. Observe
precautions for handling devices. Wear a properly grounded
electrostatic discharge (ESD) wrist strap while handling the device.
The Electrical Hazard Symbol indicates a possibility of electrical
shock when operating this unit in certain situations. To reduce the
risk of damage or injury, follow all steps or procedures as
instructed.
Digium, Inc. Page 5

Important Safety Instructions
User Cautions
Warning
This card must be used with the PC lid screwed down.
Telecommunications network voltages exist inside the PC!
The PC must be shut down and telecommunications line connection
shall be removed before opening the PC.
Electrical Shock.
To reduce the risk of injury, damage to the unit or your equipment, do
not attempt to touch the modules while they are powered. The case
should be securely closed before power is applied to the unit.
Alarm Dialing Equipment.
If your home has specially wired alarm equipment connected to the
telephone line, ensure the installation of the 2400 Series does not
disable your alarm equipment. If you have questions, consult your
telephone company or a qualified installer.
Servicing.
Do not attempt to service this card unless specifically instructed to do
so. Do not attempt to remove the card from your equipment while
power is present. Refer servicing to qualified service personnel.
Water and Moisture.
Do not spill liquids on this unit. Do not operate this equipment in a
wet environment.
Heat.
Do not operate or store this product near heat sources such as
radiators, air ducts, areas subject to direct, intense sunlight, or other
products that produce heat.
Caution.
To reduce the risk of fire, use only No. 26 AWG or larger
telecommunication wiring for network connections.
Digium, Inc. Page 6

User Cautions
Caution.
This card is not intended for home use. It must be used in restricted
access locations and installed in UL Listed I.T.E. only.
Static Electricity.
To reduce the risk of damaging the unit or your equipment, do not
attempt to open the enclosure or gain access to areas where you are
not instructed to do so. Refer servicing to qualified service personnel.
Save these instructions for future reference.
Service Personnel Cautions
Warning.
This card must be used with the PC lid screwed down.
Telecommunications network voltages exist inside the PC!
The PC must be shut down and telecommunications line connection
shall be removed before opening the PC.
Electrical Shock.
To reduce the risk of injury, damage to the unit or your equipment, do
not attempt to touch the modules while they are powered. The case
should be securely closed before power is applied to the unit.
Servicing.
Disconnect telecommunications network cable before opening the
cover or removing the card from the motherboard.
Labeling.
For safety reasons, only connect equipment with a
Telecommunications Compliance label. This includes customer
equipment previously labelled Permitted or Certified.
Caution.
Only connect regulatory equipment (approved for use in your specific
country) to the telecommunications network voltage circuit ports.
Digium, Inc. Page 7

Service Personnel Cautions
Caution.
This card is not intended for home use. It must be used in restricted
access locations and installed in UL Listed I.T.E. only.
Digium, Inc. Page 8

Table Of Contents
TABLE OFCONTENTS
Chapter 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Echo-Cancellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
What is Asterisk®? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Asterisk as a Switch (PBX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Asterisk as a Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Asterisk in the Call Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Asterisk in the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Asterisk Everywhere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Chapter 2
Card Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Unpacking the Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Shipment Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Module Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Card Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
FXS and FXO Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Installing Asterisk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Chapter 3
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Driver Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
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Table Of Contents
Configuring Card Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Voicemail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Testing Your Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Chapter 4
FXS and FXO Explained . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
FXS Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
FXO Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Using Your 2400 Series Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Chapter 5
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Appendix A
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Appendix B
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Hardware and Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . .59
Appendix C
Glossary and Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
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List of Figures
Figure : Sample Application - Channel Bank . . . . . . . . . . . . .14
Figure : Sample Application - Legacy PBX . . . . . . . . . . . . . .15
Figure : Sample Application - Toll-bypass . . . . . . . . . . . . . . .15
Figure : Sample Application - Analog to VoIP Transcoding . .16
Figure : TDM2400P Card (Model TDM2433E) . . . . . . . . . . .23
Figure : AEX2400 Card (Model TDM2433E) . . . . . . . . . . . . .24
Figure : Motherboard Slots . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure : Insert the Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Figure : Connect Power for FXS Quad Modules . . . . . . . . . .30
Figure : Example dmesg Screen Shot . . . . . . . . . . . . . . . . . .43
Figure : Sample Application . . . . . . . . . . . . . . . . . . . . . . . . . .49
Digium, Inc. Page 11

List of Tables
Table 1: Example TDM2400P Card Configurations. . . . . . . . 25
Table 2: Example AEX2400 Card Configurations . . . . . . . . . 26
Table 3: Card Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table B-1: Maximum Power Consumption . . . . . . . . . . . . . . . . .60
Digium, Inc. Page 12

Chapter 1: Overview
Chapter 1
Overview
The 2400 Series cards are versatile devices used for connecting your
phone network to the PSTN (Public Switched Telephone Network) world.
This is accomplished through phone lines connected to the FXO (Foreign
Exchange Office) ports and phones connected via the FXS (Foreign
Exchange Station) ports. The cards allow Asterisk to connect to your
phone network, creating an office type telephony environment.
There are a variety of applications where the 2400 Series cards can prove
useful. Some examples are provided in the following figures.
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Chapter 1: Overview
Figure 1: Sample Application - Channel Bank
Note: An FXS module should be connected only to a device that is
located inside of the same building to minimize lightning exposure.
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Chapter 1: Overview
Figure 2: Sample Application - Legacy PBX
Figure 3: Sample Application - Toll-bypass
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Chapter 1: Overview
Figure 4: Sample Application - Analog to VoIP Transcoding
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Chapter 1: Overview
Echo-Cancellation
Users connecting their 2400 Series cards to the PSTN or other devices are
likely to be placing calls that will result, at some point, in an unbalanced
4-wire/2-wire hybrid. The result of this hybrid is the reflection of a near-
end echo to the calling party. Elimination of this echo is the responsibility
of echo cancellation.
The 2400 Series cards, unless otherwise equipped, utilize Asterisk to
perform software-based echo cancellation. Asterisk maintains a number
of open source echo cancelers. These open source echo cancelers provide
a moderate level of echo cancellation, but are not capable of dealing with
higher levels of, or more advanced, echoes.
Digium recommends that those users concerned about echo cancellation
purchase the VPMOCT032 hardware echo cancellation module. The
VPMOCT032 may be combined with both the TDM2400P and
AEX2400.
The VPMOCT032 is designed to handle up to 128ms of echo cancellation
across all channels and provides a G.168 echo cancellation solution.
Digium, Inc. Page 17

Chapter 1: Overview
What is Asterisk®?
Asterisk is the world’s leading open source telephony engine and tool kit.
Offering flexibility unheard of in the world of proprietary
communications, Asterisk empowers developers and integrators to create
advanced communication solutions...for free. Asterisk is released as open
source under the GNU General Public License (GPL), and it is available
for download free of charge. Asterisk is the most popular open source
software available, with the Asterisk Community being the top influencer
in VoIP.
Asterisk as a Switch (PBX)
Asterisk can be configured as the core of an IP or hybrid PBX, switching
calls, managing routes, enabling features, and connecting callers with the
outside world over IP, analog (POTS), and digital (T1/E1) connections.
Asterisk runs on a wide variety of operating systems including Linux,
Mac OS X, OpenBSD, FreeBSD, and Sun Solaris. It provides all of the
features you would expect from a PBX including many advanced features
that are often associated with high end (and high cost) proprietary PBXs.
Asterisk's architecture is designed for maximum flexibility and supports
Voice over IP in many protocols, and can interoperate with almost all
standards-based telephony equipment using relatively inexpensive
hardware.
Asterisk as a Gateway
It can also be built out as the heart of a media gateway, bridging the
legacy PSTN to the expanding world of IP telephony. Asterisk’s modular
architecture allows it to convert between a wide range of communications
protocols and media codecs.
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Chapter 1: Overview
Asterisk as a Feature/Media Server
Need an IVR? Asterisk’s got you covered. How about a conference
bridge? Yep. It’s in there. What about an automated attendant? Asterisk
does that too. How about a replacement for your aging legacy voicemail
system? Can do. Unified messaging? No problem. Need a telephony
interface for your web site? Ok.
Asterisk in the Call Center
Asterisk has been adopted by call centers around the world based on its
flexibility. Call center and contact center developers have built complete
ACD systems based on Asterisk. Asterisk has also added new life to
existing call center solutions by adding remote IP agent capabilities,
advanced skills-based routing, predictive and bulk dialing, and more.
Asterisk in the Network
Internet Telephony Service Providers (ITSPs), competitive local
exchange carriers (CLECS) and even first-tier incumbents have
discovered the power of open source communications with Asterisk.
Feature servers, hosted services clusters, voicemail systems, pre-paid
calling solutions, all based on Asterisk have helped reduce costs and
enabled flexibility.
Asterisk Everywhere
Asterisk has become the basis for thousands of communications
solutions. If you need to communicate, Asterisk is your answer. For more
information on Asterisk, visit http://www.asterisk.org or http://
www.digium.com.
Digium, Inc. Page 19

Chapter 2: Card Installation
Chapter 2
Card Installation
This chapter provides the following information:
Unpacking the Card on page 21
Shipment Inspection on page 21
Module Identification on page 22
Card Identification on page 25
FXS and FXO Connection on page 27
Slot Compatibility on page 27
Hardware Installation on page 29
Software Installation on page 32
Installing Asterisk on page 35
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