COMSPHERE
3800 Series Modems
Models 3810, 3811, and 3820
User’s Guide
3810-A2-GB30-20
3rd
Edition (November 1996)
Changes
and enhancements to the product and to the information herein will be documented and issued as a new release.
For the 3800 Series standalone modems, the Universal Service Order Code (USOC) for Permissive mode is RJ11C and for
Programmable mode is RJ41S or RJ45S. The Canadian equivalent to the USOC is CA1
CA45A for RJ41S and RJ45S, respectively
. For 3800 Series carrier-mounted modems, the USOC for Permissive mode is
1 for RJ1
1C, and CA41A and
RJ21X and for Programmable mode is RJ27X. The Canadian equivalent to the USOC is CA21A for RJ21X and CA27A
for RJ27X.
Warranty, Sales, and Service Information
Contact your sales or service representative directly for any help needed. For additional information concerning warranty,
sales, service, repair
• Via the Internet:
ia T
• V
elephone: Call our automated call system to receive current information via fax or to speak with a company
, installation, documentation or training, use one of the following methods:
V
isit the Paradyne World W
ide W
eb site at http://www
.paradyne.com
representative.
— Within the U.S.A., call 1-800-870-2221
— International, call 813-530-2340
Trademarks
All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered service marks of their
respective owners.
Printed on recycled paper
COPYRIGHT E 1996 Paradyne Corporation. All rights reserved.
This
publication is protected by federal copyright law
or
translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties
without
the express written permission of Paradyne Corporation, 8545 126th A
Paradyne
Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of
or
fitness for a particular purpose. Further
hereof
without obligation of Paradyne Corporation to notify any person of such revision or changes.
ANovember 19963810-A2-GB30-20
, Paradyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents
. No part of this publication may
venue North, P
be copied or distributed, transmitted, transcribed, stored in a retrieval system,
.O. Box 2826, Largo, Florida 33779-2826.
merchantability
Important Safety Instructions
1.Read and follow all warning notices and instructions marked on the product or included in the
manual.
2.This product is intended to be used with a three-wire grounding type plug – a plug which has
a grounding pin. This is a safety feature. Equipment grounding is vital to ensure safe
operation. Do not defeat the purpose of the grounding type plug by modifying the plug or
using an adapter
Prior to installation, use an outlet tester or a voltmeter to check the ac receptacle for the
presence of earth ground. If the receptacle is not properly grounded, the installation must not
continue until a qualified electrician has corrected the problem.
If a three-wire grounding type power source is not available, consult a qualified electrician to
determine another method of grounding the equipment.
3.Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation of
the product and to protect it from overheating, these slots and openings must not be blocked
or covered.
4.Do not allow anything to rest on the power cord and do not locate the product where persons
will walk on the power cord.
.
Safety Instructions
5.Do not attempt to service this product yourself, as opening or removing covers may expose
you to dangerous high voltage points or other risks. Refer all servicing to qualified service
personnel.
6.General purpose cables are provided with this product. Special cables, which may be required
by the regulatory inspection authority for the installation site, are the responsibility of the
customer.
7.When installed in the final configuration, the product must comply with the applicable Safety
Standards and regulatory requirements of the country in which it is installed. If necessary,
consult with the appropriate regulatory agencies and inspection authorities to ensure
compliance.
8.A rare phenomenon can create a voltage potential between the earth grounds of two or more
buildings. If products installed in separate buildings are interconnected, the voltage potential
may cause a hazardous condition. Consult a qualified electrical consultant to determine
whether or not this phenomenon exists and, if necessary
interconnecting the products.
In addition, if the equipment is to be used with telecommunications circuits, take the following
precautions:
–Never install telephone wiring during a lightning storm.
Never install telephone jacks in wet locations unless the jack is specifically designed for wet
–
locations.
Never touch uninsulated telephone wires or terminals unless the telephone line has been
–
disconnected at the network interface.
–Use caution when installing or modifying telephone lines.
–Avoid using a telephone (other than a cordless type) during an electrical storm.
There may be a remote risk of electric shock from lightning.
–Do not use the telephone to report a gas leak in the vicinity of the leak.
, implement corrective action prior to
B3810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
Notices
WARNING
THIS
EQUIPMENT HAS BEEN TESTED
PURSUANT 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 COMMUNICATIONS. 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.
THE AUTHORITY TO OPERATE THIS EQUIPMENT IS CONDITIONED BY THE REQUIREMENTS THAT NO
MODIFICATIONS
APPROVED BY PARADYNE.
TO USERS OF DIGITAL APPARATUS IN CANADA:
THIS CLASS A DIGITAL APPARATUS MEETS ALL REQUIREMENTS OF THE CANADIAN INTERFERENCE-CAUSING
EQUIPMENT REGULATIONS.
CET APPAREIL NUMÉRIQUE DE LA CLASSE A RESPECTE TOUTES LES EXIGENCES DU RÈGLEMENT SUR LE
MATÉRIEL BROUILLEUR DU CANADA.
WILL BE MADE T
AND FOUND T
O THE EQUIPMENT UNLESS THE
O COMPL
Y WITH THE LIMITS FOR A CLASS A DIGIT
WARNING
CHANGES OR MODIFICA
TIONS ARE EXPRESSL
AL DEVICE,
Y
The following warning applies to all Model 381
1 modems.
WARNING
THE
MODEL 381
THE SAME TYPE RECOMMENDED BY THE MANUFACTURER. DISCARD USED BATTERIES ACCORDING TO THE
MANUFACTURER’S INSTRUCTIONS.
LE MODÈLE 381
UNE BATTERIE DU MÊME TYPE OU D’UN TYPE RECOMMANDÉ PAR LE CONSTRUCTEUR. METTRE AU RÉBUT
LES BATTERIES USAGÉES CONFORMÉMENT AUX INSTRUCTIONS DU FABRICANT.
1 IS PROVIDED WITH A REPLACEABLE LITHIUM BATTERY. REPLACE THE BATTERY ONLY WITH
1 EST FOURNI AVEC UNE PILE AU LITHIUM REMPLAÇABLE REMPLACER UNIQUEMENT AVEC
CNovember 19963810-A2-GB30-20
Government Requirements and Equipment Return
Certain governments require that instructions pertaining to modem connection to the public switched
telephone network be included in the installation and operation manual. Specific instructions are
listed in the following sections.
United States
Notice to Users of the Public Switched Telephone Network
Safety Instructions
1. This
2.
3. The Ringer Equivalence (REN) is used to determine the quantity of devices which may be
4. If the 3800 Series modem causes harm to the telephone network, the telephone company will
5. The telephone company may make changes in its facilities, equipment, operations, or procedures
equipment complies with Part 68 of the FCC rules. On the equipment is a label that contains,
among other information, the FCC registration number and ringer equivalence number (REN) for
this equipment. The label is located on the bottom of the Model 3810 and 3820 modems. This label
is located on the Model 3811’s circuit card assembly
provided to the telephone company.
Page A of this manual contains the Universal Service Order Codes (USOC) associated with the
services on which the equipment is to be connected.
connected to the telephone line. Excessive RENs on the telephone line may result in the devices
not ringing in response to an incoming call. In most, but not all areas, the sum of the RENs should
not exceed five (5.0). To be certain of the number of devices that may be connected to the line, as
determined by the total RENs, contact the telephone company to determine the maximum RENs
for the calling area.
notify you in advance that temporary discontinuance of service may be required. But if advance
notice is not practical, the telephone company will notify the customer as soon as possible. Also,
you will be advised of your right to file a complaint with the FCC if you believe it is necessary.
that could affect the operation of the equipment. If this happens, the telephone company will
provide advance notice in order for you to make the necessary modifications in order to maintain
uninterrupted service.
. If requested, this information must be
6. If you experience trouble with this equipment, please contact your sales or service representative (as
appropriate) for repair or warranty information. If the product needs to be returned to the company service
center for repair, contact them directly for return instructions using one of the following methods:
V
• Via the Internet:
ia T
• V
If the trouble is causing harm to the telephone network, the telephone company may request that you
remove the equipment from the network until the problem is resolved.
elephone: Call our automated call system to receive current information via fax or to speak with
a company representative.
— Within the U.S.A., call 1-800-870-2221
— International, call 813-530-2340
7. The user is not authorized to repair or modify the equipment.
isit the Paradyne World W
ide W
eb site at http://www
.paradyne.com
D3810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
8. This equipment cannot be used on public coin service provided by the telephone company.
Connection to Party Line Service is subject to state tariffs. (Contact the state public utility
commission, public service commission or corporation commission for information.)
9. The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a
computer or other electronic device to send any message via a telephone fax machine unless such a
message clearly contains, in a mar
page of the transmission, the date and time it is sent, and an identification of the business, or other
entity
other entity, or individual.
In order to program this information, follow the steps outlined in the manual supplied with your
fax software.
10. An FCC compliant telephone cord with modular plugs may be provided with this equipment. This
equipment is designed to be connected to the telephone network or premises wiring using a
compatible modular jack which is Part 68 compliant.
Canada
gin at the top or bottom of each transmitted page, or on the first
, or other individual sending the message, and the telephone number of such business, or
Notice to Users of the Canadian Public Switched Telephone Network
The Canadian Department of Communications label identifies certified equipment. This certification
means that the equipment meets certain telecommunications network protective, operational and
safety requirements. The Department does not guarantee the equipment will operate to the user’s
satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company
. The equipment must also be installed using an
acceptable method of connection. In some cases, the company’
line individual service may be extended by means of a certified connector assembly (telephone
extension cord). The customer should be aware that compliance with the above conditions may not
prevent degradation of service in some situations.
s inside wiring associated with a single
ENovember 19963810-A2-GB30-20
Safety Instructions
Repairs to certified equipment should be made by an authorized Canadian maintenance facility
designated by the supplier
. Any repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunications company cause to request the user to
disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power
utility, telephone line and internal metallic water pipe system, if present, are connected together. This
precaution may be particularly important in rural areas.
CAUTION
Users should not attempt to make such connections themselves, but
should contact the appropriate electric inspection authority, or
electrician, as appropriate.
The Load Number for this equipment is listed on the label on the modem. The Load Number (LN)
assigned to each terminal device denotes the percentage of the total load to be connected to a
telephone loop which is used by the device to prevent overloading. The termination on a loop may
consist of any combination of devices subject only to the requirement that the total of the Load
Numbers of all devices does not exceed 100.
If your equipment is in need of repair, refer to the procedures described on page A in the front of this
document for contact information.
F3810-A2-GB30-20November 1996
Table of Contents
Preface
Objectives
How to Use This Manual
Related Documents
manual describes how to install and operate the
COMSPHEREr
carrier
-mounted modems. It is assumed that you have a
basic understanding of modems and their operation.
3800 Series standalone and
How to Use This Manual
Chapter 1 provides information about the 3800 Series
modems’ features.
Chapter 2 and Chapter 3 provide instructions for
installing the 3800 Series modems.
Chapter 4 provides the information required to operate
the Model 3810 and Model 3820 using the diagnostic
control panel (DCP) and the Model 381
COMSPHERE 3000 Series Carrier’
control panel (SDCP).
Chapters 5 through 12 describe the eight branches of
the front panel command sets: Call Setup, Talk/Data,
Status, Test, Configure, Control, Remote, and Security.
Chapter 13 provides an overview of fax modem
operation.
Chapter 14 provides instructions for displaying and
changing A
Appendix A provides a menu tree for 3800 Series
modems.
T commands and S-registers.
1 using the
s shared diagnostic
Appendix C provides instructions for performing
diagnostic tests when data communications problems
occur.
Appendix D provides technical specifications.
Appendix E provides EIA RS-232, EIA RS-366A, and
VF TELCO pin assignments.
Appendix F provides V.25bis dialing information.
Appendix G provides a list of all default configuration
options available for the four factory preset
configurations: Async Dial, Sync Dial, Sync Leased, and
UNIX Dial.
Appendix H provides an equipment list for 3800 Series
modems.
The Glossary provides a description of terms used
throughout this manual.
A reference card is inserted inside the back cover.
Related Documents
3000-A2-GA31COMSPHERE
Carrier, Installation Manual
6700-A2-GY31COMSPHERE 6700 Series
Network Management System
User’
s Guide
3610-A2-GZ45
3600 Hubbing Device
Feature Number 3600-F3-300
Installation Instructions
3000 Series
Appendix B provides a list of the result codes produced
by 3800 Series modems.
Call your sales representative to order additional
product documentation.
The COMSPHERE 3800
generation of full-feature, high-speed dial modems, offer
reliable asynchronous and synchronous operation over
dial- or leased-lines networks. The 3800 Series modems’
unique software defineability allows for the addition of
future enhancements, whether it is installing new features
or firmware upgrades.
Through its downloading capability, any 3800 Series
modem can be upgraded to the latest firmware, requiring
no new hardware investment or on-site personnel, and
little or no downtime. These modems support a wide
range of modulation schemes and offer control using
either AT commands, the user-friendly diagnostic control
panel (DCP) or the optional COMSPHERE 6700 Series
Network Management System (NMS). The NMS
performs extensive monitoring, testing, reporting, and
restoral functions to assist in managing your network.
High-speed data transfer and reliable throughput at
data rates as high as 19,200 bps (V
is guaranteed by employing the latest techniques in
CCITT V
CCITT V.42/MNP error correction. In addition to fast line
speeds, the modem can send data to the DTE at speeds as
high as 1
.42bis/MNP Class 5 data compression and
15,200 bps.
Series modems, a new
.32terbo) over dial lines
The 3800 Series modem is extremely versatile when
used in modem pooling environments; it allows multiple
users to temporarily customize settings in the 3800 Series
modem, thereby permitting communication with the
calling modem. Upon disconnection, the 3800 Series
modem falls back to its original configuration settings and
resumes normal operation.
The modem’s compatibility with a number of dialing
methods and protocols, such as asynchronous A
commands, CCITT V.25bis dialing, EIA RS-366-A
dialing for carrier-mounted modems, and the user-friendly
diagnostic control panel (DCP), permits the 3800 Series
modem to be used in a variety of applications and
environments while also allowing control over modem
configuration, dialing, and diagnostics. The 3800 Series
modems offer four preset factory configurations
containing the most often used modem settings. These
factory presets provide quick configuration for any
asynchronous/ synchronous dial, synchronous leased, or
UNIXr hardware-based dial environments.
The 3800 Series family is available in three models:
the Model 3810, a 4-wire/2-wire standalone modem; the
Model 381
unit; and the Model 3820, a 2-wire standalone unit. All
three models offer a variety of modulation schemes and
network enhancements while still providing reliable,
high-speed data transmission using the latest in modem
technology.
1, a carrier- mounted version of the standalone
T
1-13810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
Features
The 3800 Series modems have a wide variety of
features.
High-speed transmission using asynchronous,
•
synchronous, or UNIX devices over full- or
half-duplex dial networks or 2-wire/4-wire leased
lines.
• Dial-Line Modulations: V.32terbo (19,200 and
16,800 bps), CCITT V.32bis (14,400, 12,000, 9600,
7200, and 4800 bps), V.32 (9600 and 4800 bps),
V.22bis (2400 bps), V.22 (1200 bps), V.21
(300 bps), Bell 212A, (1200 bps), and Bell 103J
(300 bps).
• Two-wire/four-wire Leased-Line Modulations:
V.32terbo (19,200 and 16,800 bps), V.32bis
(14,400, 12,000, 9600, 7200, and 4800 bps),
V.32 (9600 and 4800 bps), V.22bis (2400 bps).
• Convenient migration to new or optional features
through software downloading.
• CCITT V
• Virtual error free data integrity with CCITT V.42
and MNP Level 4 error control.
Automatic and manual single call dial backup and
•
dial standby capabilities for 4-wire leased-line
applications (Model 3810 and Model 381
• A unique Paradyne modem pooling feature that
preserves the answering modem’
configuration, but allows multiple users to
temporarily adapt parameters for individual
requirements.
• Dial-line data rates from 300 bps–19,200 bps.
Leased-line rates from 2400 bps–19,200 bps.
• Asynchronous dial DTE data rates from
300 bps–115,200 bps.
.42bis and MNP Class 5 data compression.
1).
s permanent
• Complement of self-tests, local and remote
loopbacks including CCITT compatible V.54.
• Four factory-defined configurations and two
user-defined configuration areas.
• Availability in either the 2-wire/4-wire standalone
and carrier mount, or the 2-wire only standalone
models.
• Originate Security and three Answer Security
modes.
• Directory #1 Callback capability.
Dial Access Security which guards against
•
unwanted user access to the host DTE.
•
Hayes Autosync support.
Options
The 3800 Series modems also may have the following
optional features:
• Diagnostic, control, monitor
capabilities through the COMSPHERE 6700 Series
NMS.
• A diagnostic control panel (DCP) on the front bezel
that displays the connect status, data rate, type of
error control or compression, test results, alarm
status of DTE or VF parameters for both local and
remote modems.
• Storage of up to 10 telephone numbers to directory
locations.
• Compatibility with the industry de facto standard
T Command set.
A
•
Dialing via DCP, A
commands, or RS-366-A (Model 3811 only).
• Configuration of software options via the
AT Command set or DCP.
1-2November 19963810-A2-GB30-20
T commands, CCITT V.25bis
COMSPHERE 3800 Series
Models
The COMSPHERE 3800 Series modem is available in
several models.
• Model 3810, a 4-wire/2-wire standalone unit
capable of operation on 2-wire dial, or 4-wire
leased or 2-wire leased lines.
•
Model 381
modem for installation into a COMSPHERE
3000 Series Carrier; it is capable of operation on
dial, or 4-wire leased or 2-wire leased lines.
Removing and Replacing Model 3810 and Model 3820 Modems2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Overview
The standalone Model 3810 modem (Figure 2-1) is
capable of either dial or 4-wire/2-wire leased-line
operation. The modem is controlled using either AT
commands or the diagnostic control panel (DCP). The
DCP consists of an LCD which displays the T
menu, three function keys and four directional keys which
allow you to maneuver and choose DCP selections, and a
row of 12 LED status indicators which display modem
activity. For a better understanding of DCP operation,
refer to Chapter 4,
The rear of the modem contains an ON/Off power
switch, a low voltage ac power connector
modular connector for phone or leased-line connection, an
DCP Operation
.
op-Level
, an 8-pin
8-pin modular connector for dial-line connection, a 4-pin
modular connector for network management, and a
DB-25-S DTE connector.
The standalone Model 3820 is capable of dial and
2-wire leased-line operation. Its DCP functions are similar
to the Model 3810 except it has only six LED status
indicators. For more information regarding the DCP, refer
to Chapter 4,
The rear of the modem contains an ON/Off power
switch, a low voltage ac power connector
modular connector for external telephone use, an 8-pin
modular connector for dial-line or 2-wire leased-line
connection, a 4-pin modular connector for network
management, and a DB-25-S DTE connector.
DCP Operation
.
, an 8-pin
2-13810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
DIAGNOSTIC
CONTROL
PANEL
SPEAKER
INDICATORS
LCD AND KEYPAD
STATUS
AC TRANSFORMER
Figure 2-1. Model 3810 and 3820
3800 Series Modem Package
After opening the modem’
and verify that the following items are present:
• Manual and reference card
• Model 3810 or Model 3820 modem
• Power transformer
• One 6-position, 4-wire modular cord (Model 3810
and Model 3820)
s package, check for damage
EIA-232-D
INTERFACE
NMS
DIAL/LEASED (3820)
PHONE/LEASED (3810)
AC POWER IN
ON/OFF
496-13096-02
• One 8-position, 8-wire modular cord (Model 3810
only)
• One ferrite choke and cable tie
• Fax software and documentation (if fax option
installed)
If any hardware components are damaged, notify your
sales or service representative. Refer to page A in the
front of this document for contact information.
2-2November 19963810-A2-GB30-20
Model 3810 and 3820 Installation
Customer-Supplied Equipment
The following customer
required to complete a data communications system using
either the Model 3810 or Model 3820 modem:
• A DTE with an available EIA-232-D serial port.
• A standard EIA-232-D male-to-female cable with a
male DB-25-S connector at one end to attach to the
modem.
• One of the following modular dial or leased
network interfaces:
— RJ45S for dial programmable applications
— RJ1
— An 8-position to 6-position crossover cable for
The following customer
required for the installation of a Model 3811 modem:
• A COMSPHERE 3000 Series Carrier.
• A male-to-female 50-pin mass termination cable.
One Network Interface Module (NIM) for modems
installed in Slots 1–8 and one NIM for modems
installed in Slots 9–16 (required for dial-line
applications).
• One of the following modular or 50-pin dial or
leased network interfaces:
— RJ11C for single line dial permissive
— RJ45S for single line dial programmable
— RJ21X for multiple line dial permissive
— RJ27X for multiple line programmable
1C for dial permissive applications
JM8 leased-line applications only
applications
applications
applications
applications
-supplied equipment is
-supplied equipment is
If the modem is to be managed by a network
management system, a Shared Diagnostic Unit (SDU)
must be supplied and properly connected to the network
management controller. For proper network management
connection to the SDU, refer to the COMSPHERE
6700 Series Network Management System User’s Guide
For installation of the 3000 Series Carrier into a
cabinet, refer to the
Installation Manual.
COMSPHERE 3000 Series Carrier
.
,
Model 3810 or Model 3820
Modem Installation
Before
installing your standalone modem, make sure
your installation site is clean and well-ventilated. Allow
space around the modem for installing cables and
telephone cords, and make sure the modem is located
within reach of the ac power outlet. The distance between
your modem and DTE should be minimized if DTE data
rates exceed 19,200 bps. Also, low capacitance cables
may be necessary for speeds greater than 19,200 bps or
distances greater than 50 feet.
The rear panel of both the Model 3810 and Model 3820
modems have the following switches and connectors (see
Figures 2-2 and 2-3 which appear later in this chapter):
• An ON/Off power switch.
• A 5-pin DIN type power receptacle for ac power
transformer.
• An 8-pin modular keyed jack for 4-wire/2-wire
leased lines or external telephone set on the
Model 3810. On the Model 3820, this jack is for
external telephone set use only
• An 8-pin modular keyed jack for dial (Public
Switched Telephone Network, or PSTN) lines on
the Model 3810. On the Model 3820, this jack is for
dial or 2-wire leased lines.
.
— 66 punchdown block or other demarcation
device
• One 6-position to 6-position modular cord (required
for network management applications).
• A Shared Diagnostic Unit (SDU) (required for
network management applications).
• A 4-pin modular jack for Network Management
System (NMS) connection for future release.
• A 25-pin DB-25-S receptacle for DTE interface.
2-33810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
Connecting Model 3810 and Model 3820
Modems with Supplied Cables
Figure 2-2 and Figure 2-3 show how Model 3810 and
Model 3820 modems are connected to certain TELCO
jack types using the supplied cables. For other TELCO
connections, refer to Appendix E.
DTE Connection
Use the following procedures to connect the
EIA-232-D cable and ferrite choke from the modem to the
DTE:
Make sure the modem’
1.
Off.
2. Connect the DB-25-P (male) connector on the
cable to the DB-25-S (female) connector labeled
DTE (Figures 2-2 and 2-3) on the modem’s rear
panel. Use a small screwdriver to tighten the cable
to the modem.
3. Connect the DB-25-P connector on the cable to
the DB-25-S connector on the DTE. Use a small
screwdriver to tighten the cable to the DTE.
s rear panel power switch is
Figure 2-2. Model 3810 Rear Panel
2-4November 19963810-A2-GB30-20
Model 3810 and 3820 Installation
To
ensure compliance with FCC Part 15 Regulations, a
ferrite choke must be installed on the EIA-232-D interface
cable.
1. Open the ferrite choke and place it around the
DTE cable as close as possible to the connector
attached to the modem.
2.
Close the two halves around the cable and snap
the ferrite choke shut, pressing down on the plastic
latch to secure it.
3. Install a cable tie behind the ferrite choke to
prevent it from sliding along the cable.
Figure 2-3. Model 3820 Rear Panel
2-53810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
Dial Network Connection
The telephone company provides the line termination
jacks for the type of service you request. Y
to operate in either Permissive or Programmable mode.
Advance coordination with the telephone company is
suggested when connecting the modem to telephone dial
lines (PSTN).
If you operate in the Permissive mode, the modem’s
transmit output level is fixed at approximately –9 dBm.
The telephone company assumes that the line loss is
3 dBm and no compensation is provided for additional
losses. The resulting level at the telephone central of
could be lower than the nominal –12 dBm provided with
Programmable mode. A Permissive mode telephone line
is usually terminated with a USOC RJ1
If you operate in the Programmable mode, the
telephone company installs a program resistor that adjusts
the modem’
telephone company’s central office is at the maximum
allowable level of –12 dBm. Telephone lines for the
Programmable mode are usually terminated with a USOC
RJ45S jack or an RJ41S jack switched to Programmable.
s output level so that the signal entering the
ou may choose
fice
1C jack.
Model 3810 Dial-Line
Connection
For the Model 3810, use the following procedures to
connect the modem to the dial network interface:
ogrammable mode
Pr
1. Insert the 8-position, 8-conductor modular plug
into the jack labeled DIAL/LEASED (3820),
Figure 2-2.
2. Insert the other end of the modular cord into the
dial network interface.
Permissive mode
1. Insert the 6-position, 4-conductor modular plug
into the jack labeled DIAL/LEASED (3820),
Figure 2-2.
2. Insert the other end of the modular cord into the
dial network interface.
NOTE
The modem is shipped with the
Async Dial factory preset
configuration stored in memory.
This factory preset configures
the modem for Permissive
mode. To operate in
Programmable mode, you must
change the Dial Transmit Level
configuration option using either
the DCP (refer to the Dial Line
configuration options in
Chapter 9,
the AT&J command (refer to
Chapter 14,
and S-Registers
Configure Branch)
AT Command Set
).
or
Model 3820 Dial-Line
Connection
Use the following procedures to connect a Model 3820
to the dial network interface:
Permissive mode
1. Insert the 6-position, 4-conductor modular plug
into the jack labeled DIAL/LEASED (3820),
Figure 2-3.
2. Insert the other end of the modular cord into the
dial network interface.
2-6November 19963810-A2-GB30-20
Model 3810 and 3820 Installation
Model 3810 4-Wire/2-Wire
Leased-Line Connection
Use the following procedures to connect a Model 3810
to the leased-line network interface:
1. Insert the 8-position, 8-conductor modular plug
into the jack labeled PHONE/LEASED (3810),
Figure 2-2.
2. Insert the other end of the modular cord into the
leased-line network interface.
3. If the Model 3810 has a dial backup line, follow
the steps listed in
Connection
Model 3810 Dial-Line
section.
Model 3820 2-Wire
Leased-Line Connection
Use the following procedures to connect a Model 3820
modem to the 6-pin, center pair, leased-line network
interface. For 2-wire leased line connection to a JM8
network interface, refer to Figure E-1 in Appendix E:
Dial Network Management
System Connection
For
Model 3810 and 3820 modems, use the following
procedures to connect the modem to the network
management system interface:
1. Insert the subminiature 4-conductor modular plug
of the 3600 Hubbing Device into the jack labeled
NMS (Figure 2-2 or 2-3).
2. Connect the 3600 Hubbing Device to the network
management system.
Refer to the
3600-F3-300 Installation Instructions (3610-A2-GZ45)
for more information. Installation for the Model 3810 and
3820 modems is the same as for the 3610 DSU.
3600 Hubbing Device Featur
e Number
AC Power Transformer
Connection
Use the following procedures to connect the modem to
an ac power outlet:
1. Insert the 6-position, 4-conductor modular plug
into the jack labeled DIAL/LEASED (3820),
Figure 2-3.
2. Insert the other end of the modular cord into the
leased-line network interface.
Model 3810 and Model 3820
Telephone Connection
Use the following procedures to connect the modem to
a telephone:
1. Insert the 6-position, 4-conductor modular plug
into the jack labeled PHONE/LEASED (3810).
2. Insert the other end of the modular cord into the
telephone.
1.
Make sure the modem’
position.
2. Insert the power transformer’s 5-pin DIN male
connector into the modem’s rear panel ac power
receptacle (Figures 2-2 and 2-3).
3. Insert the power transformer into a grounded ac
power outlet.
s power switch is in the Of
f
2-73810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
Modem Power-Up
Once your modem is properly connected to the DTE,
dial and/or leased lines, and ac outlet, press the modem’
rear panel power switch to the ON position. The modem
begins a power-up self-test. This test takes several
seconds to perform, and verifies the operation of most
hardware components within the modem. If successful,
the LCD displays
to the Top-Level menu screen.
If a failure occurs during the self-test, the LCD
displays
The LCD then displays the Top-Level menu screen with
the message
the LCD. Although a failure has occurred, the modem will
attempt to operate. This allows you to activate a more
thorough self-test using the Test branch. Refer to
Chapter 8, T
Power On Selftst Failed
Power On Selftst Passed
Power On Selftst
Passed
F1
Power on Fail appearing on the top line of
est Branch
F2
.
F3
for several seconds.
and continues
s
Removing and Replacing
Model 3810 and
Model 3820 Modems
To remove and replace a Model 3810 or Model 3820
modem, perform the following steps:
1.
Make sure the modem is of
modem’s rear panel power switch to the Off
position.
2. Disconnect the power cord from the ac power
outlet, and then from the connector on the rear of
the modem.
Disconnect the dial and leased-line modular cords
3.
from the modem’s rear panel.
4. Disconnect the DTE interface cable from the
modem’s rear panel.
If the modem is to be removed for service, return
it using the procedures on page A in the front of
this document for contact information.
Install the replacement modem as described in the
5.
Model 3810 or Model 3820 Modem Installation
section of this chapter
way as the modem being replaced.
The carrier-mounted Model 3811 modem (Figure 3-1)
is capable of dial or 4-wire/2-wire leased-line operation
and installs into a COMSPHERE 3000 Series Carrier. The
Model 381
displaying modem activity and an audio speaker jack for
the carrier’
The Model 3811 modem’s rear has two DTE edge card
connectors that mount into a connector plate located on
the rear of the carrier
DB-25-S connectors, one providing an EIA RS-232 DTE
interface and one providing an EIA RS-366A DTE
interface. The Model 3811 derives ac power from the
COMSPHERE 3000 Series Carrier’
common bus to all devices installed in the carrier. The
user interface to any Model 3811 is through the shared
diagnostic control panel (SDCP), an optional feature
1’s faceplate has 16 LED status indicators for
s optional speaker
. This connector plate has two
.
s backplane which is a
similar to the DCPs on the Model 3810 and Model 3820.
For a better understanding of DCP operation, refer to
Chapter 4,
The COMSPHERE 3000 Series Carrier has a total of
17 slots. The first slot, Slot 0, is reserved for the Shared
Diagnostic Unit (SDU) while the remaining 16 slots can
house up to 16 Model 381
networks, a combination of Model 381
Model 361
circuit card that provides SDCP and network management
interfaces to modems and DSUs installed in the carrier.
SDUs are only required if a single SDCP is used by
multiple COMSPHERE 3000 Series Carriers in a cabinet
or if a network management system (NMS) is used.
For more details on the COMSPHERE 3000 Series
Carrier, refer to the
Installation Manual.
DCP Operation
1 Data Service Units (DSUs). An SDU is a
.
1 modems, or for mixed
1 modems and
COMSPHERE 3000 Series Carrier
,
3-13810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
FACEPLATE
Status
Pwr
Alrm
142
Test
Dial
125
RI
Busy
Serv
SQ
103
TXD
104
RXD
105
RTS
106
CTS
107
DSR
108
DTR
109
LSD
Front Panel
Spkr
EIA-232/V.24
CONNECTOR
EIA-232/V.24
EDGE CARD
CONNECTOR
RS-366A/V.25
EDGE CARD
CONNECTOR
REAR
CONNECTOR
PLATE
EIA232/V.24
(3800)
RS366A/V.25
RS-366A/V.25
CONNECTOR
(3600/3500)
V.35
3811
496-13155-02
Figure 3-1. Model 3811
Model 3811 Installation
The
Model 381
COMSPHERE 3000 Series Carrier which supplies
operating power and the dial and/or leased-line network
connections.
leased-line, NIM, and network management cabling
information, refer to the
Carrier, Installation Manual.
1 is designed for installation in a
For correct power, DTE, dial-line,
COMSPHERE 3000 Series
The COMSPHERE 3000 Series Carrier has 17 slots
which can hold up to 16 modems and one Shared
Diagnostic Unit (SDU). The SDU is required when the
modems in the carrier are controlled by an NMS, or when
multiple carriers in a cabinet configuration are to be
controlled by a single shared diagnostic control panel
(SDCP). The SDCP of the COMSPHERE 3000 Series
Carrier is the user interface to the Model 3811 modem. A
single SDCP can control up to eight carriers containing up
to 128 compatible modems.
3-2November 19963810-A2-GB30-20
The
installation of a Model 381
1 varies slightly if an
SDCP is installed on the front of the carrier. T
Model 381
1 modem into the carrier without an SDCP,
perform the following steps:
o install a
Model 3811 Installation
2. At the front of the carrier, hold the modem
vertically, with the latch on its faceplate in the
open position, and insert it into the top and bottom
card guides of one of the slots numbered 1–16 (see
Figure 3-2).
CAUTION
If the Model 3811 is removed
from the carrier, always use a
ground strap when handling
the modem. Always store the
Model 3811 in an antistatic
bag when it is removed from
the carrier.
1. At the rear of the carrier install the rear connector
plate. Make sure the plate uses the same slot
position as that intended for the modem.
Loosely fasten the plate. This allows for slight
adjustments later when installing the modem.
Slide the modem into the slot, aligning the modem
with the rear connector plate, until the backplane
connector and DTE connector seat firmly into the
back of the carrier. The faceplate latch
automatically closes as you push the modem into
the carrier. To lock the modem into the carrier,
press the faceplate latch until a click is heard.
3. If the carrier is ON, the Power LED on the
faceplate of the 381
the modem completes its power
1 lights. After several seconds
-up self-test in
which all faceplate LEDs light. If the modem fails,
the Alrm LED on the faceplate flashes.
Return to the rear of the carrier and tighten the
rear connector plate.
Figure 3-2. Installing a Model 3811 Modem
3-33810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
If
the modem is to communicate with an installed
SDCP, install the modem as described above and perform
the following steps:
1.
Press the
key on the SDCP
Select
. The cursor
appears in the carrier selection entry.
2. Press the F1 (") or F2 (↓) key until the carrier
number you want appears on the LCD.
The carrier number selection has a range of 1 to 8
since a single SDCP can control a configuration of
up to eight carriers. (This is only possible if the
SDU is installed.)
3.
Press the
selection entry
key to position the cursor on the slot
.
4. Press the F1 (") or F2 (↓) key until the slot
number (1–16) you want appears on the LCD.
Ignore the AB designator that appears on the LCD
since it is not applicable to the 3800 Series
modems.
5.
Press the
key to place the SDCP in direct
Select
communication with the selected modem.
The LCD displays the Top-Level menu for the
selected modem. In addition, the Front Panel LED
on the modem’s faceplate and the OK LED on the
SDCP light.
6. Once you have determined that the modem is
installed properly and completed its power-up
self-test, rotate the circuit pack lock until it covers
the faceplate latch (Figure 3-3). This prevents the
modem from accidently being removed once it is
installed in a carrier.
CIRCUIT
CARD
GUIDE
CLOSED
(LOCKED)
OPEN
(UNLOCKED)
CIRCUIT
PACK
LOCK
LATCH
CIRCUIT
CARD
GUIDE
495-11985a-03
Figure 3-3. Circuit Pack Lock
Removing and Replacing
Model 3811 Modems
It is not necessary to power down the carrier to remove
and replace a Model 381
steps:
1 modem. Perform the following
7. Configure the modem as described in the Selecting
Factory Configuration Options
section in
Chapter 4.
If the Model 3811 is removed
from the carrier, always use a
CAUTION
ground strap when handling
the modem. Always store the
Model 3811 in an antistatic
bag when it is removed from
the carrier.
1. Rotate
the circuit pack lock until the release tab is
exposed.
2.
Press down on the release tab and pull the modem
away from the carrier’
chapter describes how to use the diagnostic
control panel (DCP) of the 3800 Series modem. It also
describes how to select and use each branch of the
Top-Level menu tree.
Diagnostic Control Panels
There are two types of DCPs: the front panel on the
standalone Model 3810 and Model 3820 modems, and the
shared diagnostic control panel (SDCP), an optional
feature used with a Model 381
COMSPHERE 3000 Series Carrier
two-line, 32-character liquid crystal display (LCD) and
keypad through which Top-Level menu branches are
accessed to perform the following:
• Initiate and disconnect dial operations
Check modem status
•
• Set up configuration options
Initiate diagnostic tests
•
1 installed in a
. Both DCPs have a
The LCD displays the result of any command initiated
using the DCP
from an attached asynchronous DTE using the
AT command set.
Models 3810 and 3820
Diagnostic Control Panels
The
(Figures 4-1 and 4-2) contain status indicators,
pushbutton-type keys, and an LCD.
. Most of these operations can be performed
DCPs of the Model 3810 and Model 3820 modems
• Access remote modems through the local modem’s
DCP
4-13810-A2-GB30-20November 1996
COMSPHERE 3800 Series Modems
COMSPHERE 3820
COMSPHERE 3810
F1F2
CTS TXD LSD RXD
RTS
109
103
106
105
Figure 4-1. Model 3810 DCP
F1F2
DTR
PWR ALRM
DIAG
108142
CTS TXD LSD RXDTEST
109
103
106
105
104
104
F3
SQRTS
F3
SQ
496-13068-02
RATE
Figure 4-2. Model 3820 DCP
496-13067-02
4-2November 19963810-A2-GB30-20
DCP Operation
Model 3811 Faceplate and Shared
Diagnostic Control Panel
The
SDCP
, is used to manage carrier-mounted Model
1 modems. Use the SDCP to issue commands to, view
381
and select configuration options on, or monitor tests for a
specific Model 381
1 modem.
Status
OK
Alrm
Diag
In
Diag
Out
Status
142
125
103
104
105
106
107
108
109
Front Panel
Spkr
Pwr
Alrm
Test
Dial
RI
Busy
Serv
SQ
TXD
RXD
RTS
CTS
DSR
DTR
LSD
The faceplate of the Model 381
1 contains LED status
indicators that monitor the operation of the modem. After
the SDCP is connected to the modem, the Front Panel
indicator of the selected modem lights to show that the
modem is connected.
Figure 4-3 shows the SDCP and the Shared Diagnostic
Unit (SDU) it interfaces with.
SDU
3811
SDU12345678910111213141516
SELECT
KEY
OK Alarm BckUp Test EC
STATUS
INDICATORS
NETWORK
DEVICE
ALARM
DIAL
BACKUP
CARRIER SLOTS 1–16
Select
OK Alarm BckUp Test EC
ERROR
CORRECTION
TEST
MODE
F1F2F3
KEYPAD
COMSPHERE 3000
LCD
496-13073-03
Figure 4-3. Optional SDCP, Model 3811 Faceplate, and Optional SDU
4-33810-A2-GB30-20November 1996
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