ADTRAN 3192 H4TU-C Instruction Manual

Section 61223404L2-5A
Issue 1, December 2003
CLEI Code: T1L7RCFA_ _
61223404L2-5A 1
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
CONTENTS
1. General.................................................................... 1
2. Installation............................................................... 3
3. Provisioning ............................................................ 4
4. HDSL4 System Testing .......................................... 5
5. Control Port Operation (HDSL4)............................ 7
6. HDSL4 Deployment Guidelines ........................... 20
7. Maintenance.......................................................... 24
8. Specifications........................................................ 24
9. Warranty and Customer Service ........................... 24
Appendix A. HDSL4 Loopbacks............................ A-1
TABLES
Table 1. HDSL4 List Versions.................................... 1
Table 2. Compliance Codes ........................................ 2
Table 3. Front Panel LED Indicators .......................... 3
Table 4. Provisioning Options .................................... 4
Table 5. Screen Abbreviations.................................... 7
Table 6. Attenuation Limits ...................................... 20
Table 7. Range Limits: 26 Gauge / 70°F / PIC......... 20
Table 8. Range Limits: 24 Gauge / 70°F / PIC......... 20
Table 9. Single Pair DC Resistance Value................ 21
Table 10. 3192 H4TU-C Specifications.................... 25
Table A-1. HDSL4 Loopback Control Codes......... A-2
Table A-2. Loopback Control Codes ...................... A-3
1. GENERAL
The ADTRAN 3192 HDSL4 Transceiver Unit for the
Central Office (3192 H4TU-C) is used to deploy an
HDSL4 T1 circuit using 4-wire metallic facilities. The
unit occupies one slot in a 3192 chassis. Figure 1 illus-
trates the 3192 H4TU-C (P/N 1223404L2).
Revision History
This is the first release of this document. Future
revisions will be explained in this paragraph.
Description
The DS1 or DSX-1 input signal is supplied from the
network. The HDSL4 signals are provided to the local
loop. The 3192 H4TU-C works in conjunction with the
H4TU-R and up to two H4Rs to provide a DS1 service
on the local loop.
Figure 1. 3192 H4TU-C
The 3192 H4TU-C works with the HDSL4 unit for the
remote end (H4TU-R) and the repeater (H4R) as shown
in Table 1.
Note: x = any generic number
The 3192 H4TU-C can be deployed in circuits
consisting of one H4TU-C, one H4TU-R, and up to two
H4Rs. System power and alarm bus connections are
made through the backplane of the 3192 chassis.
Table 1. HDSL4 List Versions
Part Number Description
122x424L1 or L2 T200 H4TU-R, Local Power
122x426L1 or L2 T200 H4TU-R, Span Power
122x441L1 T200 H4R
122x445L1 239 H4R
1223404L2
DSX
/DS1
ALM
DSL 1
DSL 2
R
S
2
3
2
LBK
ESF
/SF
B8ZS
/AMI
H TUC
TX
RX
TX
RX
DSX MON
DSX EQ
3192 HDSL4 Transceiver Unit for the Central Office (H4TU-C)
Installation and Maintenance Practice

2 Issue 1, December 2003 61223404L2-5A
TScan
The 3192 H4TU-C is equipped with TScanTM, which
provides data retrieval and diagnostic capabilities for
remote management of DS1 circuits. TScan allows
provisioning, performance, and event history infor-
mation to be retrieved by the test center via the Facility
Data Link (FDL). In addition, TScan can be used to
determine the nature and location of faults on DS1
trouble circuits. TScan is accessible only through the
remote test center.
TScan is a patent-pending, single-ended, diagnostic
routine residing on a host server at the central test
facility. TScan issues commands and retrieves data via
FDL from the H4TU-C. TScan performs the following
functions (see Figure 2):
• Detection and location of an open, one or both
conductors
• Detection and location of a short between Tip and
Ring
• Detection and location of a ground fault from either
or both conductors
• Detection of foreign voltage
• H4TU-C self diagnostics
• Ability to remotely detect the presence or absence
of a ground connection in the remote mount.
Figure 2. TScan Diagnostics
TScan allows operators to integrate this capability
across multiple computing platforms with existing
operating systems.
NOTE
For implementation of TScan please contact
your local ADTRAN sales representative.
Compliance
Table 2 shows the compliance codes for the 3192
H4TU-C. The 3192 H4TU-C is to be installed in a
restricted access location and in a Type “B” or “E”
enclosure only.
WARNING
Up to –200 VDC may be present on telecom-
munications wiring. The DSX-1 interface is
intended for connection to intra-building
wiring only. Ensure chassis ground is properly
connected.
The 3192 H4TU-C provides span powering voltage
(negative only with respect to ground, –190 VDC
nominal, GFI protection < 5 mA) and meets all require-
ments of Bellcore GR-1089-CORE (Class A2) and
ANSI T1.418-2002. This product is NRTL listed to the
applicable UL standards.
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
Changes or modifications not expressly approved by
ADTRAN could void the user’s authority to operate this
equipment.
C
CO Outside Plant Facilities
ROpen on either conductor
CROpen on both conductors
CRShort between T&R
CR
Short to ground from eith
er
or both conductors
X
X
X
Table 2. Compliance Codes
Code Input Output
Power Code (PC) F C
Telecommunication Code (TC) – X
Installation Code (IC) A –

61223404L2-5A Issue 1, December 2003 3
2. INSTALLATION
After unpacking the 3192 H4TU-C, inspect it for
damage. If damage has occurred, file a claim with the
carrier, then contact ADTRAN Customer Service.
Refer to the Warranty and Customer Service section for
further information. If possible, keep the original
shipping container for returning the 3192 H4TU-C for
repair or for verification of shipping damage.
CAUTION
Electronic modules can be damaged by ESD.
When handling modules, wear an antistatic
discharge wrist strap to prevent damage to
electronic components. Place modules in
antistatic packing material when transporting
or storing. When working on modules, always
place them on an approved antistatic mat that is
electrically grounded.
Instructions for Installing the Module
To install the 3192 H4TU-C, perform the following
steps:
1. If present, remove the Access Module Blank from
the appropriate access module slot of the HDSL4
chassis.
2. Hold the 3192 H4TU-C by the front panel while
supporting the bottom edge of the module.
3. Align the module edges to fit in the lower and
upper guide grooves for the access module slot.
4. Slide the module into the access module slot.
Simultaneous thumb pressure at the top and at the
bottom of the module will ensure that the module is
firmly positioned against the backplane of the
chassis.
When the 3192 H4TU-C first powers up, it runs the
power up self-tests. Once the power up self-test is
complete, the status LEDs will reflect the true state of
the hardware.
Front Panel LEDs
LED indicators mounted on the front panel of the unit
provide the status of the HDSL circuit. See Table 3 for
a listing of the front panel LEDs and their indications.
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
Table 3. Front Panel LED Indicators
Front Panel Label Condition Description
DSL 1
DSL 2
Green
Red
DSL Loop 1 and Loop 2 sync, no errors detected, and signal margin ≥ 3 dB.
No DSL Loop 1/ Loop 2 sync, errors detected, or signal margin < 3 dB.
DSX/DS1 Green
Red
DSX-1 signal is present, and no errors being detected.
In framed mode, denotes loss of framing or loss of sync at the DSX/DS1
input; in unframed mode, denotes loss of signal at DSX/DS1 input.
ALM Off
Red
Yellow
No active alarm present.
Loss of DSX-1 signal to the unit.
Loss of DS1 signal to the remote.
ESF/SF Off
Yellow
Green
Unit is provisioned for unframed data.
Unit is provisioned for ESF data.
Unit is provisioned for SF data.
B8ZS/AMI Yellow
Green
Unit is provisioned for B8ZS line code.
Unit is provisioned for AMI line code.
LBK Off
Yellow
Unit is not in loopback.
Unit is in loopback (network and/or customer).
1223404L2
DSX
/DS1
ALM
DSL 1
DSL 2
R
S
2
3
2
LBK
ESF
/SF
B8ZS
/AMI
H TUC
TX
RX
TX
RX
DSX MON
DSX EQ

4 Issue 1, December 2003 61223404L2-5A
3. PROVISIONING
There are no configuration switches for the H4TU-C.
Configuration is performed via software. For more
information, refer to the Control Port Operation
(HDSL4) section of this practice.
The provisioning settings can be viewed and manipu-
lated through management access via the front panel
RS-232 port. Tab le 4 lists the available provisioning
options and their factory default settings.
Table 4. Provisioning Options
Provisioning Option Option Settings Default Settings
1. DSX-1 Line Build Out 0-133 ft., 133-266 ft., 266-399 ft.,
399-533 ft., 533-655 ft.
0 to 133 ft.
2. DSX-1/DS1 Line Code B8ZS, AMI B8ZS
3. DSX-1/DS1 Framing SF, ESF, Unframed, Auto ESF
4. Force Frame Conversion 1Disabled, Enabled Disabled
5. Smartjack Loopback Disabled, Enabled Enabled
6. Loopback Time Out None, 120 Min 120 Minutes
7. Latching Loopback Mode 2T1 (Disabled), FT1 (Enabled) T1 (Disabled)
8. DS1 Tx Level 0 dB, -7.5 dB, -15 dB 0 dB
9. Span Power Enabled, Disabled Enabled
10. Customer Loss Indicator 3AIS, Loopback, AIS/CI AIS/CI
11. Performance Reporting Messages None, SPRM, NPRM, AUTO (both) AUTO
12. Loop Attenuation Alarm Threshold 0 (Disabled), 1-99 dB 34 dB
13. SNR Margin Alarm Threshold 0 (Disabled), 1-15 dB 04 dB
14. Remote Provisioning Disabled, Enabled Enabled
15. Shelf Alarm Disabled, Enabled Enabled
1The forced frame format conversion (FFFC) mode sets the H2TU-C to ESF and the H2TU-R to SF. This mode should be used to force
SF (DS1 from customer) to ESF (DSX-1 to network) conversion in the absence of network-provided ESF framing.
2Latching Loopback Mode
• T1 — When optioned for T1 mode, the unit does not respond to DDS Latching Loopback codes.
• FT1 — DDS Latching Loopback operation is supported. The H4TU-C and any H4R units which are in the HDSL circuit are treated
as identical Tandem Data ports and the HTU-R is treated as a different Tandem Data port.
NOTE: When operating in FT1 mode and during periods of T1 loss of signal, LOS, or T1 AIS from the customer CI, the HDSL
system will send in the network direction from the HTU-C a Fractional DS1 idle signal consisting of a repeating 7E (HEX) byte
payload within a framed/unframed T1 signal. In addition, when optioned for FT1 mode, the setting for Customer Loss Response is
ignored.
3Customer Loss Indicator
• AIS — Send AIS to network upon T1 loss of signal or T1 AIS from customer.
• LPBK — HTU-R initiates a network loopback upon T1 loss of signal or T1 AIS from customer.
• AIS/CI — HTU-R sends customer disconnect indication upon loss of signal, loss of synchronization, or receipt of T1 AIS from
customer.
NOTE: The CI is generated by transmitting the framing received from the network while overwriting the payload with a repeating
pattern. For applications where the DS1 is Extended Superframe, the data link is overwritten with a Yellow Alarm that is interrupted
once every second by a 100 milli-second code burst of 7E (HEX).

61223404L2-5A Issue 1, December 2003 5
Span Powering options
The 3192 H4TU-C uses a DC-to-DC converter to derive
its internal logic and span powering voltages from the
–48 VDC office supply. The 3192 H4TU-C can span
power an H4TU-R and up to two H4Rs as listed above.
The 3192 H4TU-C is default enabled for span powering
mode. The 3192 H4TU-C can be set to have span power
disabled when the H4TU-R is locally powered and no
H4Rs are on the circuit.
CAUTION
Disabling the span power removes all voltage
from the HDSL2 loop. This will result in an
absence of sealing current which could have an
adverse effect on circuit continuity over an
extended period of time.
The 3192 H4TU-C is capable of span powering the
H4TU-R and two H4Rs by applying –190 VDC power
to the local loop. The span powering voltage is less than
–200 volts with GFI protection to less than 5 mA. The
span powering supply is current limited to approxi-
mately 150 mA.
Refer to Figure 3. The differential span power output
voltage is measured between Loop 1 and Loop 2
(reference to Loop 1) and is typically –185 VDC.
Loop 1 will show a typical voltage of –6 VDC with
respect to ground potential, while the Loop 2 potential
is typically –191 VDC with respect to ground potential.
Figure 3. 3192 H4TU-C Span Powering
Diagram
H4TU-C Alarm Outputs
Each H4TU-C has a built-in fuse for the –48 VDC
power feed. If this fuse blows, a shelf alarm will be
activated, and all front panel indicators will be off. A
blown fuse indicates the card has malfunctioned and
should be replaced. This fuse is not designed to be
replaced in the field.
In order to avoid a shelf alarm, the H4TU-C element can
be provisioned to have the external alarms disabled.
This will disable all DSX and DS1 alarms.
4. HDSL4 SYSTEM TESTING
The ADTRAN HDSL4 system provides the ability to
monitor the status and performance of the DSX-1
signals, DS1 signals, and HDSL4 loop signals. Detailed
performance monitoring is provided via management
access of the front panel RS-232 port. These features are
valuable in troubleshooting and isolating any system
level problems that may occur at installation or during
operation of the HDSL4 system. The following subsec-
tions describe additional testing features.
H4TU-C Bantam Jacks
The front panel of the 3192 H4TU-C contains metallic
splitting bantam jacks for both nonintrusive
(monitoring) and intrusive (terminating) DSX-1 test
access. See Figure 4 for details for specific jacks.
Figure 4. H4TU-C Bantam Jack Arrangement
TC PAM
HDSL4 SPAN POWER
REGULATOR SPAN CURRENT -185 VD
C
T
R
T1
R1
LOOP 2
(-191 VDC)
LOOP 1
(-6 VDC)
DSX-1
MON
Rx
H4TU-C
DATA
PUMP
LOOP DC
POWER SOURCE
D
SX-1 T
R
D
SX-1 T1
R1
HDSL4
LOOP 1
HDSL4
LOOP 2
H4TU-C
HDSL4
LOOP 1
HDSL4
LOOP 2
EQ
Rx
DSX-1
MON
Tx
EQ
Tx

6 Issue 1, December 2003 61223404L2-5A
H4TU-C Loopbacks
The H4TU-C responds to two different loopback
activation processes.
• First, loopbacks may be activated using the craft
interface of the 3192 H4TU-C. The Loopbacks and
Test screen, which provides for the H4TU-C and
H4TU-R loopbacks, is described in the Control
Port Operation (HDSL4) of this practice.
• Second, the 3192 H4TU-C responds to the industry
standard patterns for HDSL4 loopbacks. A detailed
description of these loopback sequences is given in
Appendix A, HDSL4 Loopbacks.
This unit is transparent to framing. If a framed or
unframed loopback control sequence is sent, the unit
will initiate the proper loopback command (Refer to
Table A-1 in Appendix A).
The loopback condition imposed in all cases is a logic
level loopback at the point within the 3192 H4TU-C
where the DSX-1 signal passes into the HDSL4
modulators. Figure 5 depicts all of the loopback
locations possible with ADTRAN HDSL4 equipment.
In addition to network-side loopbacks, the ADTRAN
3192 H4TU-C provides customer-side loopbacks
initiated by using either the terminal control port or in-
band loop codes (refer to Appendix A). In this mode, an
AIS signal is supplied to the network.
Figure 5. HDSL4 Loopbacks
DSX-1
H4TU-C
LOCAL
LOOP
H4TU-C Network-Side Loopback
H4TU-R
H4TU-C
LOCAL
LOOP
H4TU-R Customer-Side Loopback
H4TU-R
H4TU-C
LOCAL
LOOP
H4TU-C Customer-Side Loopback
H4TU-R
X
X
DS1
DSX-1
DSX-1
DSX-1
H4TU-C
LOCAL
LOOP
H4TU-R Network-Side Loopback and/or
H4TU-R NIU Loopback
H4TU-RXDS1
DS1
DS1
X
AIS
AIS
X
H4R Customer-Side Loopback
DS1
AIS
AIS
H4TU-C
H4R Network-Side Loopback
H4TU-R
DS1DSX-1
DSX-1
H4R
AIS
AIS
AIS
X
H4TU-C H4TU-RH4R
H4R1 Network-Side Loopback
DS1
D
SX-1
H4TU-C H4TU-RH4R1 H4R2
AIS
X
H4R1 Customer-Side Loopback
DS1
D
SX-1
H4TU-C H4TU-RH4R1 H4R2
X = Signal Inactive
X
AIS
H4R2 Network-Side Loopback
DS1
D
SX-1
H4TU-C H4TU-RH4R1 H4R2
AIS
X
H4R2 Customer-Side Loopback
DS1
D
SX-1
H4TU-C H4TU-RH4R1 H4R2
X

61223404L2-5A Issue 1, December 2003 7
5. CONTROL PORT OPERATION (HDSL4)
The 3192 H4TU-C provides a front panel-mounted
DB-9 connector that supplies an RS-232 interface for
connection to a controlling terminal. The pinout of the
DB-9 is illustrated in Figure 6.
Figure 6. RS-232 (DB-9) Pin Assignments
The terminal interface can operate at data rates of 1.2,
2.4, 4.8, 9.6, and 19.2 kbps. The asynchronous data
format is fixed at 8 data bits, no parity, and 1 stop bit.
The supported terminal type is VT100 or compatible.
The 3192 H4TU-C supports two types of terminal
emulation modes. The manual update mode is a dumb
terminal mode, allowing easy access to print screen and
log file commands. This mode also includes a “3
SPACES TO UPDATE” message on the top of the
terminal screen (press the spacebar three times to update
the screen). The real time update mode enables all
screen highlighting and cursor placement. Print screen
and log file commands are not available in this mode.
The default terminal mode is real time update mode.
NOTE
Pressing CTRL+T while on any screen will
toggle between manual and real time terminal
modes.
NOTE
Pressing ESC while on any screen will go back
to the previous screen.
NOTE
Many portable personal computers use power-
saving programs that are known to interfere
with applications running on the personal
computer. If using a portable personal
computer with terminal emulation capability,
communication between the computer and the
HDSL4 unit may be periodically disrupted if
power saving programs are being used on the
personal computer. The symptoms may
include misplaced characters appearing on the
screen or the occurrence of screen time outs.
These symptoms are not disruptive to the
operation of the circuit and are avoidable if the
power saving options are disabled or removed.
Operation
The screens illustrated in the following section apply to
an HDSL4 circuit deployed with the ADTRAN HDSL4
technology. The circuit includes an H4TU-C, up to two
H4Rs and an H4TU-R. Other configurations are
possible (such as use of another vendor's equipment)
and their displays will vary slightly from those shown in
this section.
For abbreviations used in the screen diagrams, see
Table 5.
A terminal session is initiated by entering multiple
spacebar characters which are used by the H4TU-C to
determine the speed of the terminal. Once the speed has
been determined, an HDSL4 Main Menu is presented as
illustrated in Figure 7.
6
7
8
9
1
2
3
4
5
TXD (Transmit Data
)
SGN (Signal Groun
d)
RXD (Receive Data)
Table 5. Screen Abbreviations
Abbreviation Definition
SF Superframe Format
ESF Extended Superframe Format
B8ZS Bipolar with 8 Zero Substitution
AMI Alternate Mark Inversion
LBO Line Build Out
BPV Bipolar Violation
NIU T1 Network Interface Unit
S/N Serial Number
15M 15-Minute Period
24H 24-Hour Period

8 Issue 1, December 2003 61223404L2-5A
This HDSL4 Main Menu provides access to detailed
performance and configuration information. The
Operation, Administration, Maintenance, and Provi-
sioning (OAM&P) screens are available as listed on the
Main Menu (Figure 7). To access a particular menu
option, press the number associated with that option,
and press ENTER.
The HDSL4 Unit Information screen (Figure 8) provides
detailed product information on each component in the
HDSL4 circuit. This screen also displays contact infor-
mation for ADTRAN Technical Support, Internet site,
and address.
Figure 7. HDSL4 Main Menu
Figure 8. Unit Information Screen
Circuit ID: 11/03/03 09:29:45
Adtran HDSL4 Main Menu
1. HDSL4 Unit Information
2. Provisioning
3. Span Status
4. Loopbacks and Test
5. Performance History
6. Scratch Pad, Ckt ID, Time/Date
7. Terminal Modes
8. Alarm History
9. Event History
10. System PM/Screen Report
11. Clear PM and Alarm Histories
12. Troubleshooting
13. Virtual Terminal Control
Selection:
Circuit ID: 11/03/03 09:29:45
Press ESC to return to previous menu
ADTRAN
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
--------------------- For Information or Technical Support ---------------------
Support Hours ( Normal 7am - 7pm CST, Emergency 7 days x 24 hours )
Phone: [phone] / 888.873.HDSL Fax: [phone] Internet: www.adtran.com
--------------------------------------------------------------------------------
ADTN H4TU-C ADTN H4TU-R
P/N: 1223404L2 P/N: 1223426L2
S/N: 123456789 S/N: 123456789
CLEI: T1L7RCFAAA CLEI: T1L497PCAAA
Manf: 10/01/2003 Manf: 10/01/2003
Ver: A00 Ver: A00
ADTN H4R1 ADTN H4R2
P/N: 1221445L1 P/N: 1221445L1
S/N: BB50A8343 S/N: BB50A8353
CLEI: T1R5YP3DAA CLEI: T1R5YP3DAA
Manf: 02/12/2002 Manf: 02/12/2002
Ver: A01 Ver: A01

61223404L2-5A Issue 1, December 2003 9
The Provisioning menu (Figure 9) displays current
provisioning settings for the HDSL4 circuit. Options
that can be changed from this screen are labeled with a
number (for example, “1” for DSX-1 Line Build Out).
To change a particular option setting, select the appro-
priate number, and a new menu will appear with a list of
the available settings.
The options shown in Table 4 are available when the
circuit is terminated with the ADTRAN H4TU-R
(P/N 1223426L2). Some settings may differ when using
different H4TU-Rs.
The Span Status Screen (Figure 10) provides quick
access to status information for each HDSL4 receiver in
the circuit.
Figure 9. Provisioning Menu
Circuit ID: 11/03/03 09:29:45
Press ESC to return to previous menu
Provisioning
1. DSX-1 Line Buildout = 0-133 ft
2. DSX-1/DS1 Line Code = B8ZS
3. DSX-1/DS1 Framing = ESF
4. Forced Frame Conversion = Disabled
5. Smartjack Loopback = Enabled
6. Loopback Timeout = 120 Min
7. Latching Loopback Mode = T1 (Disabled)
8. DS1 TX Level = 0 dB
9. Span Power = Enabled
10. Customer Loss Indicator = AIS/CI
11. PRM Setting = AUTO
12. Loop Atten Alarm Thres = 34dB
13. SNR Margin Alarm Thres = 04dB
14. Remote Provisioning = Enabled
15. Shelf Alarm = Enabled
D. Restore Factory Defaults
Selection:
CIRCUIT ID:ABC123 11/03/03 09:29:45
Press ESC to return to previous menu
Span Status Screen
______ ______ ______ ______
NET | | | | | | | | CUST
| | | | | | | |
----->| |-------| |-------| |----------------------| |----->
| | | | | | | |
| | | | | | | |
<-----| |-------| |-------| |----------------------| |<-----
| | | | | | | |
DSX-1 |______| |______| |______| |______| DS1
H4TUC H4R 1 H4R 2 H4TUR
1. View Detailed Status
Selection:

10 Issue 1, December 2003 61223404L2-5A
Figure 10. Span Status Screen
The Detailed Status Screen (Figure 11), accessed from
the Span Status menu displays the HDSL4 status for
each receiver point.
The Loopbacks and Test Commands menu (Figure 12)
provides the user with the ability to invoke or terminate
all available HDSL4 loopbacks.
Each HDSL4 circuit component can be looped toward
the network or customer from this screen. Unit self tests
can also be initiated from this screen.
Figure 11. Detailed Status Screen
Figure 12. Loopbacks and Test Commands Menu
CIRCUIT ID:ABC123 11/03/03 09:29:45
Press ESC to return to previous menu
Detailed Status Screen
LOOP 1 LOOP 2
MARGIN ATTEN MARGIN ATTEN
Interface (CUR/MIN/MAX) (CUR/MAX) (CUR/MIN/MAX) (CUR/MAX)
--------- ------------- --------- ------------- ---------
H4TUC 17/00/17 00/00 17/00/17 00/00
H4R1 NETW 17/00/17 00/00 17/13/17 00/00
H4R1 CUST 17/17/17 00/00 17/00/17 00/00
H4R2 NETW 17/00/17 00/00 17/13/17 00/00
H4R2 CUST 17/17/17 00/00 17/00/17 00/00
H4TUR 17/00/17 00/00 17/00/17 00/00
1. Reset Min/Max
2. View Performance History
Selection:
CIRCUIT ID:ABC123 11/03/03 09:29:45
Press ESC to return to previous menu
Loopbacks and Test Commands
______ ______ ______ ______
NET | | | | | | | | CUST
| | | | | | | |
----->| |-------| |-------| |----------------------| |----->
| | | | | | | |
| | | | | | | |
<-----| |-------| |-------| |----------------------| |<-----
| | | | | | | |
DSX-1 |______| |______| |______| |______| DS1
H4TUC H4R 1 H4R 2 H4TUR
1. Run Self Tests 7. H4R1 Loopup Cust
2. H4TU-C Loopup Net 8. H4R1 Loopup Net
3. H4TU-C Loopup Cust 9. H4R2 Loopup Cust
4. H4TU-R Loopup Net
5. H4TU-R Loopup Cust
6. H4R1 Loopup Net
Selection:

61223404L2-5A Issue 1, December 2003 11
The Performance History screens (Figure 13 and
Figure 14) are used to select and display the historical
HDSL4 and T1 performance data in several different
registers. At each 15-minute interval, the performance
information is transferred to the 15-minute performance
data register.
This unit stores performance data in 15-minute incre-
ments for the previous 24-hour period. At each 24-hour
interval, the performance data is transferred into the 24-
hour performance data registers. This unit stores up to
31 days of 24-hour interval data.
Figure 13. 15-Minute Performance Data Screen
Figure 14. 24-Hour Performance Data Screen
CIRCUIT ID:ABC123 11/03/03 09:29:45
Press ESC to return to previous menu
Menu 15 Minute H4TUC DSX-1 Performance Data
1. Definitions ES-L SES-L LOSS-L CV-L
2. Reset Data 000 000 000 00000
3. 15 Min Data 14:15 000 000 000 00000
4. 60 Min Data 14:00 000 000 000 00000
5. 24 Hr Data 13:45 000 000 000 00000
6. Line Data 13:30 000 000 000 00000
7. Path Data 13:15 000 000 000 00000
8. H4TUC DSX-1 13:00 000 000 000 00000
9. H4TUR LOOP 12:45 000 000 000 00000
10. H4TUR LOOP 12:30 000 000 000 00000
11. H4TUR DS1
12. H4R #1 NETW
13. H4R #1 CUST
14. H4R #2 NETW ___ ___ ___ ___
15. H4R #2 CUST | C | |#1 | |#2 | | R |
-8->| |-----| |-----| |---------------| |--->
| |9 12| |13 14| |15 10| |
<---| |-----| |-----| |---------------| |<-11
|___| |___| |___| |___|
Selection:
CIRCUIT ID:ABC123 11/03/03 09:29:45
Press ESC to return to previous menu
Menu 24 Hour H4TUC LOOP Performance Data
LOOP 1 LOOP 2
1. Definitions ES-L SES-L UAS-L ES-L SES-L UAS-L
2. Reset Data 00000 00000 00000 00000 00000 00000
3. 15 Min Data 10/17 ----- ----- ----- ----- ----- -----
4. 60 Min Data 10/16 ----- ----- ----- ----- ----- -----
5. 24 Hr Data 10/15 ----- ----- ----- ----- ----- -----
6. Line Data 10/14 ----- ----- ----- ----- ----- -----
7. Path Data 10/13 ----- ----- ----- ----- ----- -----
8. H4TUC DSX-1 10/12 ----- ----- ----- ----- ----- -----
9. H4TUC LOOP 10/11 ----- ----- ----- ----- ----- -----
10. H4TUR LOOP
11. H4TUR DS1
12. H4R #1 CUST
13. H4R #1 CUS
14. H4R #2 NETW ___ ___ ___ ___
15. H4R #2 CUST | C | |#1 | |#2 | | R |
-8->| |-----| |-----| |---------------| |--->
| |9 12| |13 14| |15 10| |
<---| |-----| |-----| |---------------| |<-11
|___| |___| |___| |___|
Selection:

12 Issue 1, December 2003 61223404L2-5A
Abbreviations used in the Performance History screens
are defined in Performance Data Definitions screens, as
in Figure 15 and Figure 16.
Figure 15 shows the Line related definitions, and
Figure 16 shows the Path related definitions.
Figure 15. Performance Data Definitions
Figure 16. Performance Data Definitions (Continued)
Circuit ID: 11/03/03 09:29:45
Performance Data Definitions
H4TUC, H4TUR, and H4R LOOP Related: HDSL4 Framing
ES-L Errored Seconds CRC>=1 or LOSW>=1
SES-L Severely Errored Seconds CRC>=50 or LOSW>=1
UAS-L Unavailable Seconds >10 cont. SES-Ls
DS1 and DSX-1 Line Related: Superframe and Extended Superframe
ES-L Errored Seconds (BPV+EXZ)>=1 or LOS>= 1
SES-L Severely Errored Seconds (BPV+EXZ)>=1544 or LOS>=1
LOSS-L Loss of Signal Seconds LOS>= 1
PDVS-L Pulse Density Violation Secs EXZ>=1; >7 zeros if B8ZS, >15 if AMI
B8ZS-L B8ZS Seconds B8ZS coded signal received
CV-L Code Violation Count (BPV+EXZ) count
NOTE: Reverse video indicates invalid data due to a terminal restart (or power
cycle), a data register reset, or a system date or time change.
N. Next
P. Previous Selection:
Circuit ID: 11/03/03 09:29:45
Performance Data Definitions
DS1 and DSX-1 Path Related: Superframe Extended Superframe
ES-P Errored Seconds FE>=1 or CRC>=1 or
SEF>=1 or AIS>=1 SEF>=1 or AIS>=1
SES-P Severely Errored Seconds FE>=8 or CRC>=320 or
SEF>=1 or AIS>=1 SEF>=1 or AIS>=1
UAS-P Unavailable Seconds >10 cont. SES-Ps >10 cont. SES-Ps
SAS-P SEF/AIS Seconds SEF>=1 or AIS>=1 SEF>=1 or AIS>=1
ES-PFE Far End Errored Seconds n/a PRM bits G1-G6,SE,
or SL=1, or RAI
CV-P Code Violation Count FE count CRC error count
NOTE: Under a UAS-P condition, ES-P and SES-P counts are inhibited.
Under a SES-L or SES-P condition, the respective CV-L or CV-P count is
inhibited.
P. Previous Selection:

61223404L2-5A Issue 1, December 2003 13
The Scratch Pad, Circuit ID, and Time/Date screen
(Figure 17) provides a Scratch Pad for user-defined
information that can be any alphanumeric string up to
50 characters in length. The Circuit ID can be any
alphanumeric string up to 25 characters in length. The
time should be entered using military time. (For
example, enter 3:15 p.m. as “151500”.) The date should
be entered in the MMDDYY format. (For example,
enter January 02, 2003, as “010203”.)
Figure 17. Scratch Pad, Circuit ID, and Time/Date Screen
Circuit ID: 11/03/03 09:29:45
Current Scratch Pad:
New Scratch Pad =
New Circuit ID =
New Date = / / (MM/DD/YY)
New Time = : : (HH:MM:SS)
Press TAB to skip to next entry field.

14 Issue 1, December 2003 61223404L2-5A
The T1 Alarm History menu (Figure 18) and HDSL4
Span History menu (Figure 19) provide a detailed alarm
history and events log for the HDSL4 and T1 spans.
These screens include a time, date, first/last occurrence,
and count for each type of HDSL4 or T1 alarm. A
historical alarm log is also available in the System
Alarm menu.
Figure 18. T1 Alarm History Menu
Figure 19. HDSL4 Span History Screen
CIRCUIT ID: 11/03/03 09:29:45
Press ESC to return to previous menu
T1 Alarm History
LOCATION ALARM FIRST LAST CURRENT COUNT
------------------------------------------------------------------------------
H4TU-C RED(LOS/LOF) 01/01/00 00:00:05 01/01/00 00:00:05 Alarm 001
(DSX-1) YELLOW(RAI) OK 000
BLUE(AIS) OK 000
H4TU-R RED(LOS/LOF) 06/01/03 23:46:22 06/01/03 23:46:22 Alarm 001
(DS1) YELLOW(RAI) OK 000
BLUE(AIS) OK 000
------------------------------------------------------------------------------
1. T1 Alarm 4. Span H4R1 to H4R2
2. Facility Alarm 5. Span H4R2 to H4TU-R
3. Span H4TUC to H4R1 C. Clear T1 Alarms
CIRCUIT ID:ABC123 11/03/03 09:29:45
Press ESC to return to previous menu
HDSL4 Span History
LOCATION ALARM FIRST LAST CURRENT COUNT
-----------------------------------------------------------------------------
SPAN C-H1 L1 LOS OK 000
L2 LOS OK 000
H4TU-C L1 MRGN OK 000
L2 MRGN OK 000
H4R1 NET L1 MRGN OK 000
L2 MRGN OK 000
H4TU-C L1 ATTEN OK 000
L2 ATTEN OK 000
H4R1 NET L1 ATTEN OK 000
L2 ATTEN OK 000
--------------------------------------------------------------------------------
1. T1 Alarm 4. Span H4R1 to H4R2
2. Facility Alarm 5. Span H4R2 to H4TU-R
3. Span H4TUC to H4R1 C. Clear Span Alarms
Selection:

61223404L2-5A Issue 1, December 2003 15
The Event History screen illustrated in Figure 20
provides a log history of HDSL4 circuit events.
The System PM/Screen Report option (Figure 21)
offers four types of reports on performance monitoring.
Selecting a report type will then display all the reports
for that category on the screen at once, which is more
efficient than stepping through the menus individually.
Figure 20. Event History Screen
Figure 21. System PM/Screen Report Option
CIRCUIT ID:ABC123 11/03/03 09:29:45
Press ESC to return to previous menu
Num Description of Event Date Time
-----------------------------------------------------------------
1. H4TU-C Powered Up 01/25/02 11:52:00
Page Number: 1/ 1 Number of Events: 1
-----------------------------------------------------------------
'P' - Previous Page 'H' - Home 'R' - Reset Events
'N' - Next Page 'E' - End
Selection:
1. HDSL4 Unit Information
2. Provisioning
3. Span Status
4. Loopbacks and Test
5. Performance History
6. Scratch Pad, Ckt ID, Time/Date
7. Terminal Modes
8. Alarm History
9. Event History
10. System PM/Screen Report
11. Clear PM and Alarm Histories
12. Troubleshooting
13. Virtual Terminal Control
Selection: 10
Enable data logging now.
Select Report Type or Press Escape to cancel:
1) Full System/History Report
2) Current Status Report
3) System Configuration Report
4) Alarm/Event History

16 Issue 1, December 2003 61223404L2-5A
The Clear PM and Alarm Histories screen (Figure 22)
initializes data from performance monitoring and alarm
histories. Selecting this option from the HDSL4 Main
Menu displays the prompt:
This will clear the history data for
all elements in the circuit. Are you
sure (Y/N)?
Option 12 on the HDSL4 Main Menu displays the
Troubleshooting screen (Figure 23). Helpful ADTRAN
contact information along with two menu items appear
on the bottom of this screen.
Figure 22. Clear PM and Alarm Histories
Figure 23. Troubleshooting Screen
Circuit ID: 11/03/03 09:29:45
Adtran HDSL4 Main Menu
1. HDSL4 Unit Information
2. Provisioning
3. Span Status
4. Loopbacks and Test
5. Performance History
6. Scratch Pad, Ckt ID, Time/Date
7. Terminal Modes
8. Alarm History
9. Event History
10. System PM/Screen Report
11. Clear PM and Alarm Histories
12. Troubleshooting
13. Virtual Terminal Control
This will clear the PM, Alarm, Span Status, and
Troubleshooting Histories for all circuit elements.
Are you sure (Y/N)?
Selection: 11
Circuit ID: 11/03/03 09:29:45
Press ESC to return to previous menu
Troubleshooting
For HELP based on detected problems, select Troubleshooting Guidance from the
list below. If further assistance is needed, contact ADTRAN Tech Support.
Hours: Normal 7am - 7pm CST 1. Troubleshooting Guidance
Emergency 7 days x 24 hours 2. General Information
Phone: [phone] / 888.873.HDSL
Fax: [phone]
Selection:

61223404L2-5A Issue 1, December 2003 17
Selecting option 1 from the Troubleshooting screen
causes the H2TU-C to read the operational status of the
card and return Troubleshooting Guidance, or hints, as
to the probable cause of the trouble, as shown in Figure
24.
Selecting option 2 from the Troubleshooting screen
accesses the General Information screen (Figure 25)
that summarizes the deployment guidelines necessary
to provision this HDSL4 circuit.
Figure 24. Troubleshooting Guidance
Figure 25. General Information Screen
Circuit ID: 11/03/03 09:29:45
Press ESC to return to previous menu
DSX-1 Loss of Signal (Red Alarm)
- Patch test set REC jack into H4TUC MON TX jack to verify integrity of
signal to the H4TUC from the network (verify test set in MON mode).
- If signal to H4TUC is missing, insert test set at DSX panel IN Jack connecting
toward H4TUC (to verify wiring between DSX and H4TUC shelf). Check H4TUC to
verify DSX-1 LOS alarm is cleared. This verifies TX(out) and RX(in) pairs are
not swapped.
- If signal from DSX OK, verify cross-connect wiring at DSX panel is turned over
(OUT to IN) and (IN to OUT).
-If DSX wiring OK, connect test set REC to the DSX MON, network side equipment,
to verify signal from network (verify test set to MON). If no signal,
troubleshoot office problems.
For Total Access cards verify the following:
- Provisioning>Network Source is configured correctly for Mux or DSX operation.
- Provisioning>Service State is not configured for OOS-Unassigned.
- Mux card is mapped correctly.
- Mux card is functioning correctly.
Circuit ID: 11/03/03 09:29:45
Press ESC to return to previous menu
HDSL4 Loop Guidelines for optimum operation
-------------------------------------------
Non-loaded cable pair
Single bridge tap < 2Kft
Total bridge taps < 2.5Kft
Power influence <= 80 dBrnC
Longitudinal Balance >= 60dB (If using Wideband test at 196 Khz >= 40dB)
Foreign DC Voltage (t-r,t-g,r-g) < 3VDC
Loop Resistance <= 1000 ohms 1st segment
Loop Resistance <= 920 ohms 2nd segment
The following guidelines are provided as a recommendation and may be superseded
by internal deployment guidelines
Margin >= 6 dB
Attenuation (1st Segment) H4TUC <= 30 dB, H4TUR/H4R <= 32 dB
Attenuation (2nd or 3rd Segment) H4TUR/H4R <= 28dB

18 Issue 1, December 2003 61223404L2-5A
Figure 26 shows the Virtual Terminal Session screen.
Virtual Terminal (VT) allows control of the remote unit
provisioning from the H4TU-C. Select option 1 from
this screen to begin a user-initiated session with the
remote unit. When the remote session is completed,
Press CTRL+X to terminate the session.
Figure 26. Virtual Terminal Session Screen
Circuit ID: 11/03/03 09:29:45
Press ESC to return to previous menu
Virtual Terminal Session: Inactive
Virtual Host: no
Virtual Terminal Control
1. Log into H4TU-R
Selection:

61223404L2-5A Issue 1, December 2003 19
6. HDSL4 DEPLOYMENT GUIDELINES
The different segments of an HDSL4 circuit are defined
in Figure 27.
Figure 27. HDSL4 Circuit Segments
The ADTRAN HDSL4 system provides DS1-based
services over loops designed to comply with the guide-
lines given below. These guidelines apply to the
following circuit configurations:
• a single segment or an HDSL4 circuit with no
H4Rs,
• a circuit having two segments (with one H4R), or
• a circuit having three segments (with two H4Rs).
The guidelines reflected herein are for worst-case
scenarios, that is, for loops that contain a maximum
amount of disturbers, noise, etc.
Actual deployment guidelines can vary based on local
policy. Refer to the guidelines to ensure optimum
performance.
Designing a circuit with loop attenuation greater than
the recommended maximum loss may result in compro-
mised reliability of that loop. Follow the guidelines in
in this section to ensure that the circuit meets basic
requirements:
1. All loops are nonloaded only.
2. Any single bridged tap is limited to 2 kft.
3. Total bridged tap length is limited to 2.5 kft.
4. Bridge tap within 1000 feet of units may affect
performance of the circuit.
5. Loop Attenuation Limits. See Table 6.
6. DSL-Recommended Range Limits. See Table 7
and Table 8.
NOTE
In three segment circuits (two H4Rs),
individual segment resistance values must be
verified.
Table 6. Attenuation Limits
Recommended Maximum
Upstream Downstream
1st segment 30 dB 32 dB
2nd and 3rd segment 28 dB 28 dB
Table 7. Range Limits: 26 Gauge / 70°F / PIC
26 Gauge Recommended Maximum
1st segment 10,470 ft.
2nd segment 9,865 ft.
3rd segment 9,865 ft. (see note above)
Table 8. Range Limits: 24 Gauge / 70°F / PIC
26 Gauge Recommended Maximum
1st segment 14,770 ft.
2nd segment 14,050 ft.
3rd segment 14,050 ft. (see note above)

20 Issue 1, December 2003 61223404L2-5A
7. Resistance Values. See Table 9.
Each of the three segments associated with span
powering two H4Rs and a H4TU-R must satisfy
the DC resistance budgets in addition to the
recommended loop attenuation requirements. In
general, 22 and 19 AWG segments will be
restricted by their loop attenuation while the DC
resistance will restrict the segment reach for 26 and
24 AWG. When designing a dual H4R loop, the
first segment should have lower DC resistance than
the second segment.
Single H4R spans do not require any restriction
due to DC resistance.
NOTE
A circuit that otherwise meets attenuation and
other requirements for cable reach will
encounter span powering problems if resis-
tance values are excessive.
The segment resistance (Ωsegment) is determined using
this equation:
Ωsegment = L26 * Ω26 + L24 * Ω24 + L22 * Ω22 + L19 * Ω19
where L#is the length of # AWG cable (kft., excluding
bridged taps) and Ω26 is the DC resistance of #AWG cable.
Note: Interpolated between 70°F and 120°F data. Extrapolated from 70°F and 120°F data.
Table 9. Single Pair DC Resistance Value
Resistance (ohms/kft)
AWG 70°F 90°F 120°F 140°F
19 16.465 17.183 18.261 18.979
22 33.006 34.446 36.606 38.046
24 52.498 54.789 58.225 60.516
26 83.475 87.117 92.581 96.223