ADTRAN 1200221L1 User manual

VCOM Module
User Manual
Part Number 1200221L1
61200221L1-1B
June 1999

901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
[phone]
© 1999 ADTRAN, Inc.
All Rights Reserved.
Printed in U.S.A.

iii
ADTRAN Year 2000 (Y2K) Readiness Disclosure
ADTRAN has established a Year 2000 program to ensure that our products will correctly function in
the new millennium. ADTRAN warrants that all products meet Year 2000 specifications regardless of
model or revision. Information about ADTRAN's Year 2000 compliance program is available at the
following:
Product Matrix www.adtran.com/y2kfax.html
E-mail [e-mail]
Faxback Document Line [phone]
Y2K plans and product certifications are listed in the Product Matrix (see above)
Y2K Project Line [phone]

iv
Federal Communications Commission Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pur-
suant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio frequencies. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Change or modifications to this unit not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.

61200221L1-1 VCOM Module User Manual v
Table of Contents
List of Figures ......................................................................................................................vii
List of Tables ......................................................................................................................... ix
Chapter 1 Introduction ......................................................................................................................... 1-1
Voice Compression Module Overview ......................................................................................................... 1-1
Functional Description .................................................................................................................................... 1-1
Voice Compression Resources ....................................................................................................................... 1-1
Physical Description ........................................................................................................................................ 1-2
Related Documents .......................................................................................................................................... 1-2
Chapter 2 Installation ........................................................................................................................... 2-1
Unpack and Inspect ......................................................................................................................................... 2-1
Contents of Adtran Shipment ........................................................................................................................ 2-1
Installing the VCOM Module .........................................................................................................................2-1
Power-up and Initialization ............................................................................................................................ 2-2
Failed Self-test ................................................................................................................................................... 2-2
Warranty and Customer Service .................................................................................................................... 2-2
Chapter 3 Operation ............................................................................................................................. 3-1
Overview ........................................................................................................................................................... 3-1
Security Passwords ................................................................................................................................... 3-1
Terminal Menu Structure ................................................................................................................................ 3-1
Menu Access ..................................................................................................................................................... 3-3
Menu Descriptions ...........................................................................................................................................3-3
Modules Menu Descriptions .......................................................................................................................... 3-4
Slt ................................................................................................................................................................. 3-4
Type ............................................................................................................................................................3-4
Menu ........................................................................................................................................................... 3-4
Alarm .......................................................................................................................................................... 3-4
Test .............................................................................................................................................................. 3-4
State ............................................................................................................................................................. 3-4
Status .......................................................................................................................................................... 3-5
Rev .............................................................................................................................................................. 3-5
VCOM Menus ................................................................................................................................................... 3-6
Info .............................................................................................................................................................. 3-6
Part Number .............................................................................................................................................. 3-6
Serial Number ...........................................................................................................................................3-6
Board Revision .......................................................................................................................................... 3-7
Firmware Revision .................................................................................................................................... 3-7
Status .......................................................................................................................................................... 3-7
Device ......................................................................................................................................................... 3-7
State ............................................................................................................................................................. 3-7

Table of Contents
vi VCOM Module User Manual 61200221L1-1
Algorithm ...................................................................................................................................................3-7
Silence .........................................................................................................................................................3-8
Connection .................................................................................................................................................3-8
Frame Type ................................................................................................................................................3-8
Config .........................................................................................................................................................3-9
Device .........................................................................................................................................................3-9
State ...........................................................................................................................................................3-10
Test ............................................................................................................................................................3-10
Device .......................................................................................................................................................3-11
Usage Time ..............................................................................................................................................3-11
ATLAS Frms ...........................................................................................................................................3-11
ATLAS Drop ............................................................................................................................................3-11
VCOM Frms .............................................................................................................................................3-12
VCOM Drop .............................................................................................................................................3-12
Clear ..........................................................................................................................................................3-12
ATLAS Features used with VCOM Modules .............................................................................................3-12
Factory Restore ........................................................................................................................................3-12
System Self-Test ......................................................................................................................................3-13
Index .............................................................................................................................Index-1

61200221L1-1 VCOM Module User Manual vii
List of Figures
Figure 1-1. VCOM Module ........................................................................................................................... 1-2
Figure 2-1. VCOM Rear Chassis................................................................................................................... 2-2
Figure 3-1. VCOM Menu Tree...................................................................................................................... 3-2
Figure 3-2. Modules Menu with VCOM Installed..................................................................................... 3-3
Figure 3-3. VCOM Menus............................................................................................................................. 3-6
Figure 3-4. VCOM Menus: Info.................................................................................................................... 3-6
Figure 3-5. VCOM Menus: Status ................................................................................................................ 3-7
Figure 3-6. VCOM Menus: Config............................................................................................................... 3-9
Figure 3-7. VCOM Menus: Test.................................................................................................................. 3-11

List of Figures
viii VCOM Module User Manual 61200221L1-1

61200221L1-1 VCOM Module User Manual ix
List of Tables
Table 3-1. Sources for Controlling the VCOM Module ........................................................................... 3-1
Table 3-2. Status Messages .......................................................................................................................... 3-5
Table 3-3. Status Conditions ....................................................................................................................... 3-7
Table 3-4. Voice Compression Algorithms ...............................................................................................3-8
Table 3-5. Possible Configuration States ................................................................................................. 3-10

List of Tables
x VCOM Module User Manual 61200221L1-1

61200221L1-1 VCOM Module User Manual 1-1
Chapter 1 Introduction
VOICE COMPRESSION MODULE OVERVIEW
The Voice Compression Module (VCOM Module) combines with other
ATLAS components to implement a voice over frame relay (VoFR) capabil-
ity in the ATLAS 800PLUS series of Integrated Access Systems. The
VCOM Module occupies a single slot in the ATLAS chassis. You can order
the VCOM Module with support for 8, 16, 24, or 32 simultaneously com-
pressed calls.
FUNCTIONAL DESCRIPTION
The VCOM Module installs into any available slot in the ATLAS 800PLUS
chassis. You can view the module status from the ATLAS front panel (see
Chapter 4 of the ATLAS 800PLUS User Manual). You can also use the terminal
menu to provide additional status information, configure the module, and
download application software. Access the terminal menu either via a
VT-100 terminal connected to the ATLAS Base Unit's control port or via a
Telnet session established through the Base Unit's Ethernet port.
VOICE COMPRESSION RESOURCES
• The VCOM Module ordering options provide 8, 16, 24, or 32 voice com-
pression resources.
• The VCOM Module provides automatic selection of CCITT Standard or
ADTRAN-proprietaryvoicecompression algorithms based onendpoint
configuration.
• The VCOM Module supports FAX at 14400 bps.
• The VCOM Module includes dual-tone, multi-frequency (DTMF) gener-
ation and detection.
• The VCOM Module enables and disables individual voice compression
resources.

Chapter 1. Introduction
1-2 VCOM Module User Manual 61200221L1-1
PHYSICAL DESCRIPTION
The VCOM Module provides no external interfaces. Other ATLAS compo-
nents provide both the network and customer interfaces. An internal bus
exchanges information between the ATLAS chassis and the VCOM Module.
See Figure 1-1 for an illustration of the VCOM Module.
Figure 1-1. VCOM Module
RELATED DOCUMENTS
The following documents contain additional information about the ATLAS
frame relay feature:
•ATLAS 800PLUS User Manual (P/N 61200226L1-1)
•ATLAS Frame Relay User Manual (P/N 61200263L1-1.1)
VOICE COMPRESSION

61200221L1-1 VCOM Module User Manual 2-1
Chapter 2 Installation
UNPACK AND INSPECT
Carefully inspect the VCOM Module for shipping damages. If you suspect
damage, file a claim immediately with the carrier and then contact
ADTRAN Technical Support. If possible, keep the original shipping
container for returning the VCOM Module for repair or for verification of
shipping damage.
CONTENTS OF ADTRAN SHIPMENT
The ADTRAN shipment includes the following items:
•VCOMModule
•VCOM Module User Manual
(insert into main ATLAS 800PLUS User Manual)
INSTALLING THE VCOM MODULE
To install the module, follow the procedure described below. Figure 2-1
shows the proper placement of the VCOM Module in the ATLAS chassis.
Instructions for Installing the VCOM Module
Step Action
1On the rear of the ATLAS chassis, remove the cover plate from the slot
into which you want to install the VCOM Module.
2Slide the VCOM Module into the ATLAS chassis until the module is
positioned firmly against the front of the ATLAS unit.
3Fasten the thumbscrews at both edges of the option module faceplate.
4Install any additional modules into the Base Unit, as specified in the
Installation chapter of the
ATLAS User Manual .

Chapter 2. Installation
2-2 VCOM Module User Manual 61200221L1-1
Figure 2-1. VCOM Rear Chassis
POWER-UP AND INITIALIZATION
After installing the VCOM Module into the ATLAS chassis, the front panel
STATUS indicator blinks red, yellow, and green for a time. The STATUS indi-
cator remains solid green when the VCOM Module is ready to use. At this
time, you can invoke a system self-test; refer to the ATLAS 800PLUS User
Manual for details.
FAILED SELF-TEST
The terminal menu self-test log records any self-test failures for the
VCOM Module. Resources that fail self-test are disabled after power-up ini-
tialization is complete. Performing a hardware reset via the terminal menu
may recover these failed resources.
WARRANTY AND CUSTOMER SERVICE
ADTRAN will replace or repair this product within five years from the date
of shipment if the product does not meet its published specification, or if it
fails while in service. For detailed warranty, repair,and return information,
refer to the ADTRAN Equipment Warranty and Repair and Return Policy.
See the last page of this manual for pertinent information.
A return material authorization (RMA) is required prior to returning equip-
ment to ADTRAN.
For service, RMA requests, or more information, see the last page of this
manual for a toll-free contact number.
VOICE COMPRESSION
This start-up sequence may take up to two minutes.

61200221L1-1 VCOM Module User Manual 3-1
Chapter 3 Operation
OVERVIEW
You can configure or control the VCOM Module from any of several
sources (see Table 3-1). The ATLAS 800PLUS User Manual provides detailed
instructions on operating each supported source. The remainder of this
chapter describes the menu items available for operating the
VCOM Module using the terminal menu.
Security Passwords
You must have the appropriate password level to use the terminal menu to
edit items. (See the section Access Passwords in the ATLAS 800PLUS User
Manual for detailed information on working with passwords.) Each menu
description in this chapter indicates the password levels required for read
and write access.
Security level 1 users can view and edit every available field.
Security level 5 users can view any field but they cannot edit.
TERMINAL MENU STRUCTURE
ATLAS uses a hierarchical menu to access all of its features. The top-most
menu level leads to submenus that are grouped by functionality (see the
menu tree in Figure 3-1). All submenu items display in the VT-100 terminal
window.
The Modules terminal menu configures and controls the VCOM Module.
The Modules submenu, Type, shows the VCOM Module as VCOM (see
Table 3-1. Sources for Controlling the VCOM Module
Source Purpose
ATLAS Front Panel For minimal configuration and status support.
Terminal Menu For detailed configuration, status and diagnostics.

Chapter 3. Operation
3-2 VCOM Module User Manual 61200221L1-1
Figure 3-2). The following sections describe the Modules menu and its
VCOM submenus.
Figure 3-1. VCOM Menu Tree
Part Number
Info Serial Number
Board Revision
Slt Firmware Revision
Type
Menu Device
Modules Alarm Status State
Test Algorithm
State Silence
Status Connection
Rev Frame Type
Config Device
State
Device
Test Usage Time
ATLAS Frms
ATLAS Drop
VCOM Frms
VCOM Drop
Clear

Chapter 3. Operation
61200221L1-1 VCOM Module User Manual 3-3
Figure 3-2. Modules Menu with VCOM Installed
MENU ACCESS
The ATLAS System Controller automatically detects the presence of the
VCOM Module as it is installed into the system. To access the VCOM Mod-
ule menus and submenus, use the keyboard arrow keys to scroll to the
appropriate row and column; then,press Enter on the keyboard.
MENU DESCRIPTIONS
The following paragraphs describe the Modules menus and the
VCOM Module menus and submenus.
Refer to the ATLAS 800PLUS User Manual for detailed instructions
on navigating through the terminal menus.
To help you follow the terminal menu hierarchy, the following notations are used.
>MAIN MENUS
» Submenus
»» Sub-submenus

Chapter 3. Operation
3-4 VCOM Module User Manual 61200221L1-1
MODULES MENU DESCRIPTIONS
>SLT Read Security: 5
(Slot) Displays the number of available slots in the ATLAS chassis. Slot 0
refers to the ATLAS Base Unit.
>TYPE Write Security: 3; Read Security: 5
Displays the module type currently installed in the slot or the module type
you plan to install in the slot. If a VCOM Module is installed, the Type field
automatically defaults to VCOM (the VCOM Module). Alternatively, you
can use this field to preconfigure the system before installing a module by
specifying the module type that will be installed into each slot.
>MENU Read Security: 5
Displays additional status and configuration menus and submenus for var-
ious modules. To access the VCOM Module (VCOM), use the arrow keys to
scroll over to the Menu column and down to VCOM; then press Enter. (A
discussion of the menu items for this option begins with VCOM Menus on
page 3-6.)
>ALARM Read Security: 5
Indicates any alarm conditions on the VCOM Module. Press Enter in this
field to open the Alarm menu.
>TEST Read Security: 5
Indicates when the VCOM Module is executing a test. Press Enter in this
field to open the Test menu.
If a module is installed, Type automatically displays the name of the
installed module; this name cannot be changed while the slot is
occupied.

Chapter 3. Operation
61200221L1-1 VCOM Module User Manual 3-5
>STATE Read Security: 5
Denotes the module as Online or Offline. Even though a module is physi-
cally installed, it must be marked Online for it to be considered an available
resource.
Marking an installed module Offline may be useful during system trouble-
shooting. If you choose Offline, the module will not be in an alarm condi-
tion, but will display Offline.
>STATUS Read Security: 5
Displays status information on the VCOM Module. Table 3-2 lists the sta-
tus messages that might appear.
Only if State reads Online can the ATLAS use an installed module
for any data movement.
Table 3-2. Status Messages
Message Meaning Comments
Online The module is enabled and is
responding to the system con-
troller's status polls.
This is the normal response of
the system.
No
Response The module is enabled but it is
not responding to the system
controller's status polls.
This response indicates a prob-
lem in the system. It also shows
if the module is not installed.
Empty The system controller has nei-
ther detected any module in the
option slot, nor has a module
been manually enabled for this
slot.
Offline The module is installed but has
been manually changed to
Offline by a user.
The module is still responding to
the system controller status
polls.
Offline / No
Response The module is installed but has
been manually changed to
Offline by a user. The module
is not responding to the system
controller's status polls.
This response indicates a prob-
lem in the system. It also shows
when the module is not installed.
Not Ready The module is installed and per-
forming startup initialization. The initialization of the VCOM Module should take less
than two minutes.

Chapter 3. Operation
3-6 VCOM Module User Manual 61200221L1-1
>REV Read Security: 5
(Hardware Revision) Displays the hardware revision level of the selected
module.
VCOM MENUS
Figure 3-3 shows the Menus for the VCOM Module. The following sections
describe these options.
Figure 3-3. VCOM Menus
>INFO Read Security: 5
Displays module and software information for the VCOM module (see Fig-
ure 3-4).
Figure 3-4. VCOM Menus: Info
» Part Number Read Security: 5
Displays the ADTRAN part number for the module (read-only).