ADTRAN TSU ACE User manual

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  
  
 

901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
Phone: [phone]
© 1999 ADTRAN, Inc.
All rights reserved.
Printed in USA.

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 Y2K specifications regardless of
model or revision.
Information about ADTRAN’s Y2K compliance program is available
at the following locations:
ADTRAN Web Site www.adtran.com
Product Matrix www.adtran.com/y2kfax.html
Faxback Document Line [phone]
Y2K plans and product certifications are
listed in the matrix.
Y2K Project Line [phone]
E-mail [e-mail]

iv
FCC regulations require that the following information be provided to
the customer in this manual.
1. This equipment complies with Part 68 of the FCC rules. The
required label is attached to the bottom of the chassis.
2. If your TSU ACE causes harm to the telephone network, the Tele-
phone Company may discontinue your service temporarily. If
possible, they will notify you in advance. If advance notice is not
practical, you will be notified as soon as possible. You will be
advised of your right to file a complaint with the FCC.
3. Your telephone company may make changes in its facilities,
equipment, operations, or procedures that could affect the proper
operation of your equipment. If they do, you will be given
advance notice so as to give you an opportunity to maintain
uninterrupted service.
4. If you experience trouble with the TSU ACE, please contact
ADTRAN at [phone] for repair/ warranty information.
The telephone company may ask you to disconnect this equip-
ment from the network until the problem has been corrected, or
until you are sure the equipment is not malfunctioning.
5. This unit contains no user serviceable parts.
6. An FCC compliant telephone cord and modular plug is provided
with this equipment. This equipment is designed to be con-
nected to the telephone network or premises wiring using a com-
patible modular jack which is Part 68 compliant. See installation
instructions for details.
7. The following information may be required when applying to
your local telephone company for leased line facilities.
Service Type SOC FIC USOC
1.544 Mbps - SF 6.0F 04DU9-BN RJ48C
1.544 Mbps - SF and B8ZS 6.0F 04DU9-DN RJ48C
1.544 Mbps - ESF 6.0F 04DU9-1KN RJ48C
1.544 Mbps - ESF 6.0F 04DU9-1SN RJ48C

v
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, 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 commer-
cial 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.
Shielded cables must be used with this unit to ensure compliance
with Class A FCC limits.
Changes or modifications to this unit not expressly approved
by the party responsible for compliance could void the user’s
authority to operate the equipment.

vi
CANADIAN EQUIPMENT LIMITATIONS
The Industry Canada Certification label identifies cer-
tified equipment. This certification means that the
equipment meets certain telecommunications network
protective, operational, and safety requirements. The
Department does not guarantee the equipment will op-
erate to the user's satisfaction.
Before installing this equipment, users should ensure that it is per-
missible to be connected to the facilities of the local telecommunica-
tions company. The equipment must also be installed 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). The customer should be aware that 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 maintenance facility designated by the supplier. Any
repairs or alterations made by the user to this equipment, or equip-
ment 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 lines and internal
metallic waterpipe system, if present, are connected together. This
precaution may be particularly important in rural areas.
Users should not attempt to make such connections them-
selves, but should contact the appropriate electric inspection
authority, or an electrician, as appropriate.

vii
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 speci-
fications or if it fails while in service. For detailed warranty, repair,
and return information, see 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 more information, contact one of the
numbers found at the inside back page of this manual.

viii

61200295L1-20 TSU ACE User Manual ix
Table of Contents
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
T1/FT1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
T1 Service Offerings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Fractional T1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
TSU ACE Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
TSU ACE Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
TSU ACE Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
TSU ACE Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Network Interface (NI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Nx56/64 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Software Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
T-WATCH Pro Management Software Program . . . . . . . . . . 1-6
TSU ACE Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Loopback Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Network Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
DTE Interface Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
DTE Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Pattern Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
QRSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
511 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1:8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
All Zeros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
All Ones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Bridge/Router Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Chapter 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Inspecting For Damages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Items Shipped by ADTRAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Items Provided by Customer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

x TSU ACE User Manual 61200295L1-20
Table of Contents
Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
V.35 Nx56K/64K DTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Power Up Testing and Initialization . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Chapter 3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
General Menu Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Data Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Display Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Arrows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Example Menu Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
To select a menu item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
To select a submenu item . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
To Set the Data Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
To View Display-Only Data Fields . . . . . . . . . . . . . . . . . . . . 3-5
To Exit Any Menu Field Operation or Display . . . . . . . . . . 3-6
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Four Opening Menu Functions . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
CONFIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
UTIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Chapter 4 Status Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
NI PERF RPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
SES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
ES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
%AV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
%EF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
CVs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
CURR ERR/ALM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Loss of Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
AIS Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Out of Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Yellow Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Red Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Code Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

61200295L1-20 TSU ACE User Manual xi
Table of Contents
Bipolar Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Bit Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
PLL Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
ERR/ALM HIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Chapter 5 Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
CONFIG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Network (NI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
FORMAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
CODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
YEL ALRM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
XMIT ALRM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
CLOCK SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
TSU ACE Clock Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
BIT STUFFING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
SET LBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
RX SENSITIVITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
RATE 56/64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
CHANNELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
DTE TX CLK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
START CHAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
# OF CHAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
CTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
DCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
DSR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
INBAND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
Chapter 6 Utility Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
UTIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Time/Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Software Rev . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Reinit Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Set Passcode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
Fact Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4

xii TSU ACE User Manual 61200295L1-20
Table of Contents
Chapter 7 Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Network Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
LOCAL LOOPBCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
No Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Line On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Payload On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
REMOTE LOOPBK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
No Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
V.54 Inband PLB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
ANSI FDL LLB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
AT&T Inband LLB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
AT&T PLB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
TEST PATTERN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
No Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
1:8 ALL DS0s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
511 Active DS0s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
QRSS Active DS0s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
All Zeros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
All Ones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
CLR ERRORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
INSERT 511 ERRORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Run Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Port Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Chapter 8 Example Operations . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Testing Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Far End Looped Back Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Network Interface Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Appendix A TSU ACE Menu Tree . . . . . . . . . . . . . . . . . . . . . . . A-1
Appendix B DTE Data Rate Chart . . . . . . . . . . . . . . . . . . . . . . . B-1
Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acronym-1
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Index-1

61200295L1-20 TSU ACE User Manual xiii
List of Figures
Figure 1-1. TSU ACE Unit - Front View . . . . . . . . . . . . . . . . . . . . 1-3
Figure 1-2. TSU ACE Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Figure 1-3. TSU ACE Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Figure 1-4. Network Loopback Tests . . . . . . . . . . . . . . . . . . . . . . . 1-9
Figure 1-5. DTE Interface Loopback . . . . . . . . . . . . . . . . . . . . . . . 1-9
Figure 1-6. Simple Bridge Application on a T1 or FT1 Circuit. 1-11
Figure 3-1. Front Panel Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Figure 3-2. Cursor on Menu Item . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Figure 3-3. Sub-Menu Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Figure 3-4. TSU ACE Main Menu Screen . . . . . . . . . . . . . . . . . . . 3-6
Figure 3-5. TSU ACE Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Figure 4-1. Status Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Figure 4-2. Severely Errored Seconds Screen . . . . . . . . . . . . . . . . 4-2
Figure 4-3. Loss of Signal (Current Errors/Alarms) Screens . . . 4-3
Figure 4-4. Clear History Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Figure 5-1. Configuration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Figure 5-2. Network Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Figure 5-3. Network Timed Clock Source. . . . . . . . . . . . . . . . . . . 5-4
Figure 5-4. DTE Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Figure 5-5. Internal Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Figure 5-6. Inband Remote Configuration . . . . . . . . . . . . . . . . . . 5-8
Figure 6-1. Utility Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Figure 6-2. Time/Date Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Figure 6-3. Address Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Figure 7-1. Test Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Figure 7-2. Local Loopback Screen. . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Figure 7-3. Clear Errors Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Figure 7-4. Self Test Results Screen . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Figure 7-5. Loopback Setting Screen . . . . . . . . . . . . . . . . . . . . . . . 7-7
Figure 8-1. Main Menu TEST Selected. . . . . . . . . . . . . . . . . . . . . . 8-2
Figure 8-2. Test Menu with NETWORK TESTS Selected . . . . . . 8-2
Figure 8-3. Local Loopback Test Menu . . . . . . . . . . . . . . . . . . . . . 8-3
Figure 8-4. Remote Loopback Test Menu . . . . . . . . . . . . . . . . . . . 8-3
Figure 8-5. Test Pattern Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

xiv TSU ACE User Manual 61200295L1-20
List of Figures
Figure 8-6. Clear Errors Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Figure A-1. TSU ACE Menu Tree (Status and Config) . . . . . . . . A-1
Figure A-2. TSU ACE Menu Tree (Util and Test). . . . . . . . . . . . . A-2

61200295L1-20 TSU ACE User Manual xv
List of Tables
Table 2-1. Network Pin Assignments . . . . . . . . . . . . . . . . . . . . . 2-2
Table 2-2. Primary V.35 Pin Assignment. . . . . . . . . . . . . . . . . . . 2-3
Table 5-1. Normal Mode Operation. . . . . . . . . . . . . . . . . . . . . . . 5-8
Table 6-1. Editing the Time/Date. . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Table B-1. DTE Data Rate vs. DS0s. . . . . . . . . . . . . . . . . . . . . . . . B-1

xvi TSU ACE User Manual 61200295L1-20
List of Tables

61200295L1-20 TSU ACE User Manual 1-1
Chapter 1 Introduction
T1/FT1 OVERVIEW
T1 digital communication links have been used by the telephone com-
panies (telcos) for voice transmission since the early sixties. The D4
channel bank is an example of a T1 digital carrier system that was in-
troduced in the mid-seventies and is still widely used by the telcos.
Communication demands of businesses continued to grow to the
point that the telcos began offering T1 service directly to the public.
D4 channel banks began to be used for T1 in corporate network topog-
raphies for voice. The technological advances in computer develop-
ment also created a demand for T1 data communication which now is
a large part of the T1 traffic.
T1 Service Offerings
T1 is a digital service that is delivered to the user over two pairs of
wires from the service provider. The signal operates at 1.544 mega bits
per second (Mbps) and is usually extended by repeaters that are in-
stalled about every mile after the first 6000 feet. The T1 signal is divid-
ed into 24 time slots or digital signal level zeros (DS0s) which operate
at 64 kilo bits per seconds (kbps). Each time slot is occupied by digi-
tized voice or by data.
The T1 signal originally used a type of framing known as D4 Super-
frame which identifies how the T1 is multiplexed. Extended Super-
frame (ESF) is an enhancement of that framing format. ESF provides
a non-disruptive means of full time monitoring on the digital facility.
It was originally used by the service provider to monitor the perfor-
mance of their service offering. Since the introduction of ESF, equip-
ment that is installed in private networks can also provide the same
performance information to the user.

Chapter 1. Introduction
1-2 TSU ACE User Manual 61200295L1-20
Fractional T1
Fractional T1 (FT1) lets the buyer purchase less than a full T1 circuit
between two points. Most carriers offer fractional T1 in increments of
56 or 64 kbps. Connection is made to the same network elements. The
network allows multiple users to share the same interoffice T1 band-
width.
FT1 remains almost exclusively an inter-exchange carrier (IXC) ser-
vice. Local exchange carriers (LECs) typically do not offer FT1, so the
user’s proximity to the IXC’s point-of-presence (POP) is key in the sav-
ings that fractional T1 offers.
FT1 local access is available in two forms, 56 kbps or a full T1 line. In
56 kbps the required number of digital data service (DDS) lines is ex-
tended from the IXC POP and the bandwidth is combined at the office
on an outbound T1 circuit. The user pays for the individual 56K lines
and the amount of the interoffice T1 utilized. In T1 access, the user
pays for a full T1 to the IXC POP and then only for the bandwidth uti-
lized.
TSU ACE
OVERVIEW
This section provides a functional description of the TSU ACE, de-
scribes its features, and illustrates its four interfaces Figure 1-1 on page
1-3 shows the front view of the TSU ACE, and Figure 1-2 on page 1-4
shows the rear panel.
Functional Description
The ADTRAN TSU ACE is one of several T1 multiplexers that offer
complete flexibility for connection of various data sources to T1 or FT1
facilities. This family of TSU multiplexers includes the following:
•TSU, TSU LT, and TSU ACE - T1 CSU/DSUs with a single
Nx56K/64K serial port.
•TSU 100 - Same as the TSU with the added feature of a slot in the

Chapter 1. Introduction
61200295L1-20 TSU ACE User Manual 1-3
rear panel to house an option module. Each module offers up to
four additional data ports.
•TSU 600 - Same as the TSU with the added feature of six slots in
the rear panel to house up to six option modules. Each module of-
fers up to four additional data ports for a total of 24 possible data
ports.
Figure 1-1. TSU ACE Unit - Front View
The TSU ACE serves as the link between user data sources such as lo-
cal area network (LAN) bridges and routers, computers, CAD sys-
tems, and teleconferencing equipment. The amount of bandwidth
allocated to the port is custom programmable. The data terminal
equipment (DTE) data can occupy contiguous or alternate channels in
the T1 stream, and the channels may start at any position.
PWR TEST
ALM
ERR
TD CS
RS
RD
CANCEL
ENTER
TSU ACE

Chapter 1. Introduction
1-4 TSU ACE User Manual 61200295L1-20
TSU ACE Rear Panel
Figure 1-2. TSU ACE Rear Panel
Number Identification for TSU ACE Rear Panel
No. Item Function
1 Network T1-FT1 network interface
2 V.35 Nx56/64 DTE port
3 Power Switch Used to turn power on or off
4 Power Cord Captive 3-prong power cord
NETWORK
220VAC/60HZ
.075A
V.35 Nx56/64
ONOFF
1 2 3 4