Allo.com 2aCP8e series User manual

8 Port PRI Card- Quick Installation Guide
www.allo.com Version 2.1 1

8 Port PRI Card- Quick Installation Guide
www.allo.com Version 2.1 2
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Disclaimer
Information in this document is subject to change without notice and should not be construed as
a commitment on the part of allo.com. And does not assume any responsibility or make any
warranty against errors. It may appear in this document and disclaims any implied warranty of
merchantability or fitness for a particular purpose.

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About this manual
This manual describes the Allo product application and explains how to work and use it major
features. It serves as a means to describe the user interface and how to use it to accomplish
common tasks. This manual also describes the underlying assumptions and users make the
underlying data model.
Document Conventions
In this manual, certain words are represented in different fonts, typefaces, sizes, and weights. This
highlighting is systematic; different words are represented in the same style to indicate their
inclusion in a specific category. Additionally, this document has different strategies to draw User
attention to certain pieces of information. In order of how critical the information is to your
system, these items are marked as a note, tip, important, caution, or warning.
Icon
Purpose
Note
Tip/Best Practice
Important
Caution
Warning
oBold indicates the name of the menu items, options, dialog boxes, windows and functions.
oThe color blue with underline is used to indicate cross-references and hyperlinks.
oNumbered Paragraphs - Numbered paragraphs are used to indicate tasks that need to be
carried out. Text in paragraphs without numbering represents ordinary information.
oThe Courier font indicates a command sequence, file type, URL, Folder/File name
e.g. www.allo.com
Support Information
Every effort has been made to ensure the accuracy of the document. If you have comments,
questions, or ideas regarding the document contact online support: http://support.allo.com

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Table of Contents
About this manual .................................................................................................................... 3
Document Conventions............................................................................................................ 3
Support Information................................................................................................................. 3
1. Introduction ............................................................................................................................. 5
2. Overview .................................................................................................................................. 5
2.1 Hardware Echo Cancellation .............................................................................................. 5
2.2 Identifying Ports ................................................................................................................. 6
2.3 Y-adopter Dongle ............................................................................................................... 7
2.4 Dongle Split End ................................................................................................................. 8
2.5 Slot Compatibility............................................................................................................... 9
2.6 Hardware Installation......................................................................................................... 9
3. Software Configuration.......................................................................................................... 10
3.1 T1/E1 Selection................................................................................................................. 10
3.2 E1/T1 mode settings ........................................................................................................ 10
4. Software Installation Steps .................................................................................................... 12
4.1 Installation of Pre requisite packages: ............................................................................. 12
4.1.1 Installation of LibPRI package.................................................................................... 12
4.2 Installation of Dahdi Driver .............................................................................................. 13
4.3 Installation of Asterisk...................................................................................................... 14
4.4 Enable/Disable Hardware Echo Canceller........................................................................ 15
5. Software Configurations ........................................................................................................ 16
6. Appendix- PIN Assignments................................................................................................... 18

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1. Introduction
The Allo 2aCP8e/2aCP8eL series cards are T1/E1 PRI Cards designed for voice applications. The
Cards series are as follows.
Model No
Product Description
2aCP8e
8 Port PRI PCIe card
2aCP8eL
8 Port PRI PCIe card with Line Echo Cancellation
2. Overview
The Allo 2aCP8e (8 ports PRI Card) series supports industry standard protocols including
Channel Associated Signaling (CAS), SS7 Signaling, PRI switch Compatibility and Interoperable
with Asterisk, FreeSwitch, and Elastix etc.
The 2aCP8eL Series cards are ideal for connecting phones to a channel bank, T1/E1 switches,
or connecting to a legacy PBX. The Y-adapter dongle allows twice the amount of spans to fit
in a single PC slot and taking up less space to allow for more peripherals. Designed to be fully
compatible with existing software applications and integrate fully with Asterisk platform, the
2aCP8eL series cards allow many advanced call features. In this manual, we used 2aCP8eL PCI
Express card. These are identified collectively as the 2aCP8eL series cards throughout this
manual.
2.1 Hardware Echo Cancellation
Users connecting their 2aCP8eL series cards to the PSTN or other devices are likely to be
placing calls. Elimination of this echo is the responsibility of echo cancellation. Allo uses
Octassic DSP based hardware echo canceller with 128ms tail length.
The Allo 2aCP8e (8 ports PRI Card) series cards equipped with Asterisk is to perform software-
based echo cancellation. Asterisk maintains a number of open source echo cancellers. These
open source echo cancellers provide a moderate level of echo cancellation, but not capable of
dealing with higher levels or more advanced echoes.

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Allo recommends that those users concerned about echo cancellation purchase the hardware
echo cancellation module. It is designed to handle up to 128ms of echo cancellation across all
channels and provides a G.168 compliant echo cancellation solution.
2.2 Identifying Ports
The 2aCP8eL series cards consists of 4 RJ45 Ports and eight status LEDs. The ports are used for
connecting T1, E1, or J1 cables via Y-adapter dongles.
The 2aCP8eL series cards can be used without Y-adaptor dongles, but only spans 1
through 4 will be accessible.
8 Port PRI PCIe card with LEC (2aCP8eL)
Ports
(1-4)
PCIe Connector

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8 port PRI Card- Span Status LEDs
2.3 Y-adopter Dongle
The Y-adopter dongles are provided for accessing all 8 spans on the 2aCP8eL series cards. The
following figure helps to identify a dongle and its split end ports.
Y-Adapter Dongle
Span
Status
LEDs

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2.4 Dongle Split End
Split A
Split B
Dongle Split End
Connection Diagram

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2.5 Slot Compatibility
Check your motherboard to verify that a compatible slot is available for a 2aCP8eL PRI card. To
determine which slots you have on your motherboard.
PCI Express 1-lane (x1) Slot
PCI Express 4-lane (x4) Slot
PCI Express 8-lane (x8) Slot
PCI Express 16-lane (x16) Slot
Motherboard slots
The 2aCP8e series cards work PCIe x1 slot including lane lengths x4, x8, x16
The 2aCP8eL PRI card will fit into above motherboard slots (PCI Express), but cannot fit into
any of the other slots.
2.6 Hardware Installation
1. Now that you are acquainted with the 2aCP8e/2aCP8eL series cards, power down
your computer and unplug it from its power source.
2. Attach a static strap to your wrist and open the case.
3. Take away the section place holder and addition the card into a PCI or PCI Express Slot.

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Insert Card
4. Replace the cover to your computer
5. Plug the T1 or E1 equipment cable into the RJ45 port.
Use only shield cables to ensure compliance with the international EMC standards.
3. Software Configuration
3.1 T1/E1 Selection
The 2aCP8eL series cards can be configured for either T1 or E1 mode. The T1/E1 mode may be
specified in the drivers using either the default_linemode= t1 or default_linemode=e1 module
parameter when the drivers are loaded. This will set the mode for all spans on the card.
3.2 E1/T1 mode settings
By default the card is ready to use in E1 mode
E1 Mode
Add “allo4xxp” at the end of /etc/dahdi/modules, so that while starting dahdi driver Allo card
modules will load automatically.
T1 Mode
To configure the PRI card in T1 signaling mode, please add the following line in the relevant files,