ADTRAN DSU III ARdc User manual

DSU III ARdc
Data Service Unit
USER MANUAL
61200270L1-1A
September 1998

Trademark:
Hayes is a registered trademark of Hayes Microcomputer Products, Inc.
901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
Phone: [phone]
© 1998 ADTRAN, Inc.
All rights reserved.
Printed in USA.

FCC regulations require that the following information be provided in this manual:
1. This equipment complies with Part 68 of the FCC rules. On the bottom of
the equipment housing is a label that shows the FCC registration number
and Ringer Equivalence Number (REN) for this equipment. If requested,
provide this information to the telephone company.
2. If this equipment causes harm to the telephone network, the telephone
company may temporarily discontinue service. If possible, advance noti-
fication is given; otherwise, notification is given as soon as possible. The
telephone company will advise the customer of the right to file a com-
plaint with the FCC.
3. The telephone company may make changes in its facilities, equipment, op-
erations, or procedures that could affect the proper operation of this
equipment; advance notification and the opportunity to maintain uninter-
rupted service is given.
4. If experiencing difficulty with this equipment, please contact ADTRAN
for repair and warranty information. The telephone company may re-
quire this equipment to be disconnected from the network until the prob-
lem is corrected or it is certain the equipment is not malfunctioning.
5. This unit contains no user serviceable parts.
6. An FCC compliant telephone cord with a modular plug is provided with
this equipment. This equipment is designed to be connected to the tele-
phone network or premises wiring using an FCC compatible modular
jack, which is Part 68 compliant.
7. The following information may be required when applying to the local
telephone company for leased line facilities.
Service Type Digital Facility
Interface Code Service Order Code Network Jacks
2.4 kbps Digital Interface 04DU5-24 6.0F RJ-48S
4.8 kbps Digital Interface 04DU5-48 6.0F RJ-48S
9.6 kbps Digital Interface 04DU5-96 6.0F RJ-48S
19.2 kbps Digital Interface 04DU5-19 6.0F RJ-48S
38.4 kbps Digital Interface 04DU5-38 6.0F RJ-48S
56 kbps Digital Interface 04DU5-56 6.0F RJ-48S
64 kbps Digital Interface 04DU5-64 6.0F RJ-48S
PSDS Type 1 04DU5-56B 6.0F RJ-48S

FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY
INTERFERENCE STATEMENT
This equipment has been tested and found to comply with the limits for a Class B dig-
ital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential environment. This
equipment generates, uses, and canradiate radio frequency energy and, if not installed
and used in accordance with the instructions, 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.
Shielded cables must be used with this unit to ensure compliances with Class A FCC
limits.
Changes or modifications to this unit not expressly approved by ADTRAN
will void the user's authority to operate the equipment.
CANADIAN EMISSIONS REQUIREMENTS
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus as set out in the interference-causing equipment standard entitled
"Digital Apparatus," ICES-003 of the Department of Communications.
Cet appareil nuerique respecte les limites de bruits radioelectriques applicables aux
appareils numeriques de Class B prescrites dans la norme sur le materiel brouilleur:
"Appareils Numeriques," NMB-003 edictee par le ministre des Communications.

CANADIAN EQUIPMENT LIMITATIONS
Notice: The Canadian Industry and Science Canada label identifies certified equip-
ment. 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, ensure that it is permissible to be connected to the fa-
cilities of the local telecommunications company. The equipment must also be in-
stalled using an acceptable method of connection. In some cases, the company’s inside
wiring associated with a single-line individual service may be extended by means of a
certified connector assembly (telephone extension cord). Compliance with the above
conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian mainte-
nance facility designated by the supplier. Any repairs or alterations made by the user
to this equipment, or equipment malfunctions, may give the telecommunications com-
pany 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 lines, and internal metallic water pipe system, if present,
are connected together. This precaution may be particularly important in rural areas.
Users should not attempt to make such connections themselves, butshould
contact the appropriate electric inspection authority, or an electrician, as
appropriate.
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.

IMPORTANT SAFETY INSTRUCTIONS
When using yourtelephoneequipment, please follow these basic safety precautions to
reduce the risk of fire, electrical shock, or personal injury:
1. Do not use this product near water, such as near a bath tub, wash bowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool.
2. Avoid using a telephone (other than a cordless-type) during an electrical
storm. There is a remote risk of shock from lightning.
3. Do not use the telephone to report a gas leak in the vicinity of the leak.
4. Use only the power cord, power supply, and/or batteries indicated in the
manual. Do not dispose of batteries in a fire. They may explode. Check local
codes for any special disposal instructions.
SAVE THESE INSTRUCTIONS!

61200270L1-1 DSU III ARdc User Manual i
Table of Contents
Chapter 1 Introduction.............................................................................................1-1
Product Overview.........................................................................................................1-1
DDS Overview....................................................................................................1-2
4-Wire Switched 56 Overview..........................................................................1-2
Warranty and Customer Service.................................................................................1-3
Chapter 2 Installation...............................................................................................2-1
Unpack, Inspect, Power Up.........................................................................................2-1
Receipt Inspection ..............................................................................................2-1
Equipment Provided ..............................................................................2-1
Power Up.............................................................................................................2-1
Network Interface Connection....................................................................................2-2
DTE Data Connection/Primary DTE.........................................................................2-2
Configuration.................................................................................................................2-4
Configuration Methods.....................................................................................2-5
AT Commands....................................................................................................2-5
V.25 bis Commands ...........................................................................................2-6
SDLC Option ...........................................................................................2-6
Character Format..........................................................................2-6
Command Structure.....................................................................2-7
Bi-Sync Option ........................................................................................2-7
Character Format..........................................................................2-7
Command Structure.....................................................................2-7
Asynchronous Option ............................................................................2-7
Character Format..........................................................................2-7
Command Structure.....................................................................2-7
Command Descriptions .........................................................................2-7
Syntax and Possible Responses ............................................................2-9
CIC (Connect Incoming Call)......................................................2-9
CNL (Configuration Local) .........................................................2-9
CNR (Configuration Remote) .....................................................2-9
Switched 56 Operation .........................................................................2-10
CRN (Call Request with Number) ...........................................2-10

Table of Contents
ii DSU III ARdc User Manual 61200270L1-1
CRS (Call Request Using Stored Number)..............................2-10
DIC (Disregard Incoming Call).................................................2-10
PRN (Program Number)............................................................2-10
RLN (Request List of Numbers)...............................................2-11
Chapter 3 Operation .................................................................................................3-1
Menu Structure..............................................................................................................3-1
LCD Display of the Main Menu .................................................3-1
Main Menu.........................................................................................................3-1
Status ..............................................................................................3-1
Test..................................................................................................3-2
Configuration (CONFIG).............................................................3-2
Dial..................................................................................................3-2
Basic Menu Travel..............................................................................................3-3
Front Panel.....................................................................................................................3-4
LCD Window ................................................................................3-4
Enter................................................................................................3-4
Up and Down Arrows..................................................................3-5
Cancel.............................................................................................3-5
Numeric Keypad...........................................................................3-5
Shift.................................................................................................3-5
Quick...............................................................................................3-5
LED Description............................................................................3-6
Rear Panel.......................................................................................................................3-6
Chapter 4 Configuration Overview.......................................................................4-1
Local and Remote Configuration................................................................................4-1
Chapter 5 Configuring Network Options ............................................................5-1
Network Options...........................................................................................................5-1
Loop Rate.............................................................................................................5-1
Network Address...............................................................................................5-3
Remote Configuration .......................................................................................5-3
Network Type.....................................................................................................5-4
Clock Source........................................................................................................5-5
Chapter 6 Configuring DTE Options....................................................................6-1
DTE Options ..................................................................................................................6-1
DTE Rate..............................................................................................................6-1
Connector Type ..................................................................................................6-4

Table of Contents
61200270L1-1 DSU III ARdc User Manual iii
Data Format.........................................................................................................6-5
DTE Command Option......................................................................................6-6
Transmit Clock....................................................................................................6-7
CS Options...........................................................................................................6-8
Anti-Stream.......................................................................................................6-10
CD Options........................................................................................................6-12
TR Options.........................................................................................................6-13
SR Options.........................................................................................................6-14
Chapter 7 Configuring Test Options.....................................................................7-1
Test Options...................................................................................................................7-1
Test Timeout........................................................................................................7-1
Remote Digital Loopback..................................................................................7-2
EIA Local Loopback...........................................................................................7-2
EIA Remote Loopback.......................................................................................7-3
Chapter 8 Configuring Dial Options.....................................................................8-1
Dial Options...................................................................................................................8-1
Phone Number....................................................................................................8-1
Auto Answer.......................................................................................................8-2
Chapter 9 Manual Command..................................................................................9-1
Manual Command........................................................................................................9-1
Chapter 10 Dial Selection........................................................................................10-1
Dial Options.................................................................................................................10-1
Dial Stored # ................................................................................10-1
Enter Dial # ..................................................................................10-2
Redial Last # ................................................................................10-2
Chapter 11 Testing and Troubleshooting.............................................................11-1
TEST OVERVIEW .......................................................................................................11-1
Initiating a Test .................................................................................................11-2
Test Status Display...........................................................................................11-2
Exiting a Test.....................................................................................................11-3
Troubleshooting ..........................................................................................................11-5
Messages from the DSU/CSU........................................................................11-5
Troubleshooting New Installs ........................................................................11-7
Troubleshooting New Installs or Existing Circuits .........................11-8
Local Unit diagnostics................................................................................................11-9

Table of Contents
iv DSU III ARdc User Manual 61200270L1-1
DTE & Loop (LL)............................................................................................11-10
Test Description ..................................................................................11-10
Test Purpose ........................................................................................11-11
Initiating ...............................................................................................11-11
Interpreting Test Results ...................................................................11-12
Loop Only (RT)...............................................................................................11-12
Test Purpose ........................................................................................11-12
Initiating ...............................................................................................11-12
Interpreting Test Results ...................................................................11-13
DTE Only.........................................................................................................11-13
Test Purpose ........................................................................................11-14
Initiating ...............................................................................................11-14
Interpreting Test Results ...................................................................11-15
DTE With Test Pattern...................................................................................11-15
Test Purpose ........................................................................................11-15
Initiating ...............................................................................................11-15
Interpreting Test Results ...................................................................11-16
Test Pattern......................................................................................................11-16
Test Purpose ........................................................................................11-17
Initiating ...............................................................................................11-17
Interpreting Test Results ...................................................................11-18
Self Test............................................................................................................11-18
Test Purpose ........................................................................................11-18
Initiating ...............................................................................................11-18
Interpreting Test Results ...................................................................11-19
Remote Unit Diagnostics..........................................................................................11-19
Test Purpose ........................................................................................11-20
Initiating ...............................................................................................11-20
Test Results ..........................................................................................11-21
Interpreting Test Results ...................................................................11-21
Chapter 12 Status Selection.....................................................................................12-1
STATUS display ..........................................................................................................12-1
DSU Operational Status...................................................................................12-2
DATA MODE..............................................................................12-2
UNIT IN TEST.............................................................................12-2
DTE COMMAND MODE..........................................................12-2
IDLE..............................................................................................12-2
INCOMING CALL.....................................................................12-2
DIALING......................................................................................12-2

Table of Contents
61200270L1-1 DSU III ARdc User Manual v
DDS Network Status........................................................................................12-2
LOOP IS NORMAL ....................................................................12-2
OPEN LOOP................................................................................12-3
NO RX SIGNAL..........................................................................12-3
CHECK TELCO LINE................................................................12-3
OOS/OOF FROM NET..............................................................12-3
NO FRAME SYNC......................................................................12-3
TEST FROM TELCO...................................................................12-3
RATE ADAPTING......................................................................12-3
ANSWERING CALL..................................................................12-3
NO WINK FROM CO ................................................................12-3
CALL DISCONNECT.................................................................12-4
Network Rate....................................................................................................12-4
DTE Rate/Mode ...............................................................................................12-4
DTE Control Leads and Status.......................................................................12-4
Appendix A AT Commands ...................................................................................A-1
Appendix B Default Configuration Profiles ...................................................... B-1
Appendix C DSU-to-Modem Interconnect .........................................................C-1
Appendix D EIA-232 Connector ............................................................................D-1
Appendix E Specifications Summary ...................................................................E-1

Table of Contents
vi DSU III ARdc User Manual 61200270L1-1

61200270L1-1 DSU III ARdc User Manual vii
List of Figures
Figure 1-1. Sample Point-to-Point Application for DSU III ARdc ................1-2
Figure 3-1. Example of Basic Menu Travel.......................................................3-4
Figure 3-2. DSU III ARdc Front View................................................................3-4
Figure 3-3. DSU III ARdc Rear View.................................................................3-7
Figure 4-1. Complete Configuration Menu......................................................4-3
Figure 5-1. Setting Loop Rate Options ..............................................................5-2
Figure 5-2. Setting the Network Address .........................................................5-3
Figure 5-3. Enabling/Disabling Remote Configuration.................................5-4
Figure 5-4. Setting Network Type Options.......................................................5-5
Figure 5-5. Setting the Clock Source..................................................................5-6
Figure 6-1. DTE Rates for 56 or 64 kbps Loop Rate.........................................6-1
Figure 6-2. DTE Rates for Loop Rates of 2.4, 9.6, 19.2, and 38.4 kbps...........6-3
Figure 6-3. Selecting the Connector Type.........................................................6-4
Figure 6-4. Selecting Data Format......................................................................6-5
Figure 6-5. Selecting DTE Command Option...................................................6-6
Figure 6-6. Transmit Clock Options ..................................................................6-7
Figure 6-7. Selecting CS Options........................................................................6-8
Figure 6-8. Anti-Stream Options......................................................................6-11
Figure 6-9. Selecting CD Options.....................................................................6-12
Figure 6-10. Selecting TR Options......................................................................6-13
Figure 6-11. Setting SR Options..........................................................................6-14
Figure 7-1. Setting Test Timeout Option...........................................................7-1
Figure 7-2. Remote Digital Loopback................................................................7-2
Figure 7-3. EIA Local Loopback Options..........................................................7-3
Figure 7-4. EIA Remote Loopback Options......................................................7-4
Figure 8-1. Editing Stored Phone Numbers .....................................................8-1
Figure 8-2. Enabling/Disabling the Auto Answer Function .........................8-2
Figure 9-1. Manual Commands..........................................................................9-2
Figure 10-1. Dial Options Menu.........................................................................10-1
Figure 10-2. Path to Storing Numbers Option .................................................10-2
Figure 11-1. Normal Operation Before Initiating Loopback Test..................11-1
Figure 11-2. Initiating a Test...............................................................................11-2

List of Figures
viii DSU III ARdc User Manual 61200270L1-1
Figure 11-3. Sample Test Status Displays.........................................................11-3
Figure 11-4. Complete Test Menu......................................................................11-4
Figure 11-5. DTE & Loop Test..........................................................................11-11
Figure 11-6. Initiating a DTE & Loop Test......................................................11-11
Figure 11-7. Loop Only Test .............................................................................11-12
Figure 11-8. Initiating a Loop Only Test.........................................................11-13
Figure 11-9. DTE Only Test Diagram..............................................................11-14
Figure 11-10. Initiating a DTE Only Test..........................................................11-14
Figure 11-11. DTE with Test Pattern..................................................................11-15
Figure 11-12. Initiating a DTE Test with Test Pattern.....................................11-16
Figure 11-13. Test Pattern Only..........................................................................11-17
Figure 11-14. Initiating a Test Using a Test Pattern ........................................11-18
Figure 11-15. Initiating a Self Test......................................................................11-19
Figure 11-16. V.54 RDL with Test Pattern ........................................................11-20
Figure 11-17. Initiating a Remote Test...............................................................11-20
Figure 12-1. Examples of Status Displays.........................................................12-1
Figure C-1. DSU to Modem Interconnect ......................................................... C-1
Figure D-1. EIA-232 Connector..........................................................................D-1

61200270L1-1 DSU III ARdc User Manual ix
List of Tables
Table 2-1. Pin Assignments for Telco Connector ..........................................2-2
Table 2-2. Pin Assignments for Primary EIA-232 Connector ......................2-3
Table 2-3. Pin Assignments for Primary V.35 Connector ............................2-4
Table 2-4. Configuration Methods ..................................................................2-5
Table 3-1. Identification of Numbers ..............................................................3-7
Table 5-1. Loop Rate Commands ....................................................................5-2
Table 5-2. Network Address Command ........................................................5-3
Table 5-3. Remote Configuration Commands ...............................................5-4
Table 5-4. Network Type Commands .............................................................5-5
Table 5-5. Clock Source Commands ...............................................................5-6
Table 6-1. DTE Rate AT Commands ..............................................................6-2
Table 6-2. Scrambler On/Off AT Commands ...............................................6-2
Table 6-3. Data Format Commands ................................................................6-5
Table 6-4. Transmit Clock AT Commands .....................................................6-7
Table 6-5. CS Options AT Commands ............................................................6-9
Table 6-6. Short and Long Delays at Different Operating Speeds ............6-10
Table 6-7. Anti-Stream AT Commands ........................................................6-11
Table 6-8. CD Options AT Commands .........................................................6-12
Table 6-9. TR Options AT Commands .........................................................6-13
Table 6-10. SR Options AT Commands ..........................................................6-15
Table 7-1. Test Timeout AT Commands ........................................................7-2
Table 7-2. Remote Digital Loopback AT Commands ..................................7-2
Table 7-3. EIA Local Loopback AT Commands ............................................7-3
Table 7-4. EIA Remote Loopback AT Commands ........................................7-4
Table 8-1. AT Command for Storing Phone Numbers .................................8-2
Table 8-2. AT Commands for Auto Answer ..................................................8-2
Table 9-1. Manual Commands ........................................................................9-2
Table 11-1. Messages from the DSU/CSU .....................................................11-5
Table 11-2. Troubleshooting New Installs .....................................................11-7
Table 11-3. Test AT Commands ......................................................................11-9
Table 11-4. DTE With Test Pattern Commands ..........................................11-10
Table 11-5. Remote Tests and AT Commands ............................................11-19
Table A-1. AT Commands ...............................................................................A-1
Table B-1. Default Configuration Profiles .....................................................B-2

List of Tables
xDSU III ARdc User Manual 61200270L1-1

61200270L1-1 DSU III ARdc User Manual 1-1
Chapter 1 Introduction
PRODUCT OVERVIEW
The ADTRAN DSU III ARdc provides a reliable, high-speed data connec-
tion for customer data terminal equipment (DTE) through digital data
service (DDS) lines or 4-wire Switched 56 (SW56) network lines. The DSU
III ARdc supports both synchronous and asynchronous data communica-
tion over the DDS or 4-wire Switched 56 networks.
This unit is an all rate DSU/CSU, supporting services from 2.4 to 64 kbps
including 19.2 and 38.4 kbps services. The DSU III ARdc may be used in
either point-to-point or multi-point circuits.
The DSU III ARdc provides both V.35 and EIA-232 electrical and physical
DTE interfaces to accommodate a variety of applications. To insure a reli-
able connection, the unit features an extended receiver capability which
permits operation over long loops (3.4 miles or 5.5 km of 26 AWG at
56 kbps).
The unit supports Switched 56 (4-wire) service with dialing accom-
plished from the front panel. This model is compatible with AT&T Accu-
net and Sprint SW56 type services.
Figure 1-1 shows a sample point-to-point application for the DSU III
ARdc.

Chapter 1. Introduction
1-2 DSU III ARdc User Manual 61200270L1-1
Figure 1-1. Sample Point-to-Point Application for DSU III ARdc
DDS Overview
DDS is a nationwide service that allows interconnection and transport of
data at speeds up to 64 kbps. The local exchange carriers provide the local
loop service to DDS customers and may provide data for routing Inter-
LATA to an interexchange carrier. In DDS mode, the DSU III ARdc sup-
ports all DDS service rates yielding DTE rates of 1.2, 2.4, 4.8, 9.6, 19.2, 38.4
(sync or async), 56 and 64 kbps. An additional rate of 57.6 kbps is avail-
able in async mode. At the service rates of 56 kbps and 64 kbps, the unit
can be configured to run slower DTE rates (async or sync).
4-Wire Switched 56 Overview
This switched, 4-wire DDS allows customers to pay for data connection
only for the time the unit is active. The regional operating companies pro-
vide the 4-wire local loop service to SW56 customers. In SW56 mode the
DSU III ARdc supports DTE rates of 1.2, 2.4, 4.8, 9.6, 19.2, 38.4 (async or
sync) and 56 kbps (sync). An additional DTE rate of 57.6 kbps is available
in async modes.
ENTER
1 2 3
4 5 6
7 8 9
#0
*
CANCEL SHIFT SHIFT
D
A
E
B
F
C
RS CS TD RD CDALM TST
DSUIII DBU
ENTER
1 2 3
4 5 6
7 8 9
#0
*
CANCEL SHIFT SHIFT
D
A
E
B
F
C
RS CS TD RD CDALM TST
DSUIII DBU
DDS
Network
Router DSU III ARdc DSU III ARdc
56 kbps56 kbps
Router

Chapter 1. Introduction
61200270L1-1 DSU III ARdc User Manual 1-3
WARRANTY AND CUSTOMER SERVICE
ADTRAN will replace or repair this product within five years from the
date of shipment if it does not meet its published specifications or fails
while in service. For detailed warranty, repair, and return information
referto the ADTRAN Equipment Warranty and Repair and Return Policy
Procedure.
Return Material Authorization (RMA) is required prior to returning
equipment to ADTRAN.
For service, RMA requests, or further information, contact one of the
numbers listed on the inside back cover of this manual.

Chapter 1. Introduction
1-4 DSU III ARdc User Manual 61200270L1-1