ADTRAN HDSL4 T200 H4TU-R Instruction Manual

61222424L1-5B 1
Section 61222424L1-5B
Issue 2, October 2003
CLEI Code: T1L5HHUC _ _
T200 HDSL4 Transceiver Unit
for the Remote End
Installation and Maintenance Practice
Figure 1. ADTRAN T200 H4TU-R
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 ............................................................................................. 2
3. Connections ........................................................................................... 2
4. HDSL4 System Testing ........................................................................ 3
5. Front Panel O eration ........................................................................... 5
6. Control Port O eration .......................................................................... 5
7. HDSL4 De loyment Guidelines ........................................................ 17
8. Troubleshooting Procedures .............................................................. 22
9. Maintenance ....................................................................................... 22
10. Product S ecifications ....................................................................... 22
11. Warranty and Customer Service ........................................................ 22
A endix A. HDSL4 Loo backs .......................................................... A-1
FIGURES
Figure 1. ADTRAN T200 H4TU-R ......................................................... 1
Figure 2. H4TU-R MON Diagram .......................................................... 4
Figure 3. HDSL4 Loo backs ................................................................... 4
Figure 4. RS-232 (DB-9) Connector Pinout ............................................ 5
Figure 5. HDSL4 Main Menu .................................................................. 7
Figure 6. Unit Information Screen ........................................................... 8
Figure 7. Provisioning Screen .................................................................. 8
Figure 8. S an Status Screen ................................................................... 9
Figure 9. Detailed Status Screen .............................................................. 9
Figure 10. Loo backs and Test Screen .................................................... 10
Figure 11. 15-Minute Performance History Line Data Screen ................ 10
Figure 12. 24-Hour Performance History Line Data Screen .................... 11
Figure 13. Performance Data Definitions Screen .....................................11
Figure 14. Performance Data Definitions Screen (continued) .................. 12
Figure 15. Scratch Pad, Circuit ID, Time/Date Screen ............................ 12
Figure 16. Terminal Modes Menu ........................................................... 13
Figure 17. T1 Alarm History Screen ........................................................ 14
Figure 18. HDSL4 S an History Screen .................................................. 14
Figure 19. Event History Screen .............................................................. 15
Figure 20. System PM/Screen Re ort O tion ......................................... 15
Figure 21. Virtual Terminal Control Screen ............................................ 16
Figure 22. HDSL4 Circuit Segments ....................................................... 17
Figure 23. Resistance Budget S an Powering Two Re eaters ................ 19
Figure 24. Resistance Budget S an Powering Two Re eaters
(Exam le) ............................................................................... 20
TABLES
Table 1. T200 H4TU-R Com atible Housings ....................................... 1
Table 2. Com liance Codes .................................................................... 2
Table 3. T200 H4TU-R Edge Connector Wiring ................................... 2
Table 4. Front Panel Indicators .............................................................. 3
Table 5. Screen Abbreviations ................................................................ 6
Table 6. Attenuation Limits from DSL Assistant ................................. 17
Table 7. Range Limits: 26 Gauge /70ºF/PIC ........................................ 17
Table 8. Range Limits: 24 Gauge /70ºF/PIC ........................................ 17
Table 9. Single Pair Cable DC Resistance Value (Ω) ........................... 18
Table 10. HDSL4 Insertion Loss Values……………………………… 21
Table 11. Single S an and First Segment of Re eatered Loo ………. . 21
Table 12. Second or Third Segment of Re eatered Loo …………….. 21
Table 13. Troubleshooting Guide ........................................................... 22
Table 14. ADTRAN T200 H4TU-R S ecifications ............................... 23
Table A-1. HDSL4 Loo back Control Codes ........................................ A-2
Table A-2 Loo back and Control Codes ............................................ A-3,4
REM
LOC
LBK
1222424L1
LOCAL
RX
M
O
N
TX
R
S
2
3
2
DSL 1
DSL 2
DS1
ALM
(GRN)
SF
(YEL)
ESF/
(GRN)
AMI
(YEL)
B8ZS /
(GRN)
RLB
(YEL)
LLB /
rebmuNtraPnoitpircseDecnerefeR
xL4302421gnisuoHtnuoMelgniS004T5-2L43024216
5-3L43024216
1L4305421gnisuoHtnuoMlauD002T5-1L43054216
xL7002421flehSetomeR21RH5-xL70024216
1L8002421flehSetomeR4RH5-1L80024216
Table 1. T200 H4TU-R Compatible Housings
1. GENERAL
The ADTRAN 4-wire T200 HDSL4 transceiver unit
for the remote end (H4TU-R), P/N 1222424L1, is a
network terminating unit used to de loy an HDSL4 T1
circuit using 4-wire metallic facilities. See Figure 1.
The T200 H4TU-R is a T200 mechanics card which
will fit Ty e 200 or Ty e 400 mechanic enclosures.
The T200 H4TU-R can be housed in the ADTRAN
standalone metal enclosures or shelf units as indicated
in Table 1.

61222424L1-5B
2
This version of the H4TU-R works with multi le list
versions of the HDSL4 transceiver unit for the central
office (H4TU-C) and re eater (H4R) as listed below.
Unit Number Description
118141XL1 ........... Total Access 3000 H4TU-C
122x401L1 ............ 220/E220 H4TU-C
122x403L1 ............ DDM+ H4TU-C
122x404L1 ............ 3192 H4TU-C
122x407L1 ............ H4TU-C for Sone lex
122x441L1 ............ T200 H4R
122x445L1 ............ 239 H4R
Note: x = any generic number
The H4TU-R can be de loyed in circuits using one
H4TU-C, one H4TU-R, and u to two H4Rs.
The H4TU-R terminates local loo HDSL4 signals
originating from the Central Office (CO) unit and
transforms the HDSL4 signal into traditional DS1
signals to be delivered to the customer.
The H4TU-R (P/N 1222424L1) is intended for local
ower (±48V) only. If a s an owered unit is needed,
order P/N 122x426L1. A local ower su ly is
available from ADTRAN by ordering P/N
1353.DSK48V04.
Revision History
This is the second release of this document. This
revision is to u date the Screens.
2. INSTALLATION
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
After un acking the unit, ins ect it for damage. If
damage is discovered, file a claim with the carrier,
then contact ADTRAN. For more information, refer
to the Warranty and Customer Service section.
The settings on the H4TU-C are encoded and
transmitted to the H4TU-R once the circuit has
achieved synchronization. There are no switch
settings on the H4TU-R.
Remote Provisioning
This H4TU-R can be used to rovision the entire
HDSL4 circuit via the craft interface.
Compliance
Table 2 shows the com liance codes for the
H4TU-R. This roduct is intended for installation in
restricted access locations only and is intended for
installation in equi ment with a Ty e “B” or “E”
enclosure.
WARNING
Up to –200 VDC may be present on
telecommunications wiring. Ensure chassis
ground is properly connected.
This roduct meets all requirements of Bellcore
GR-1089-CORE (Class A2) and is NRTL listed to the
a licable UL standards.
3. CONNECTIONS
All connections of the H4TU-R are made through card
edge connectors. Table 3 gives the card edge in
assignments for the H4TU-R circuit ack.
CAUTION
Ensure chassis ground is properly connected for
either standalone or shelf-mounted applications.
Code Input Output
Power Code (PC) F C
Telecommunication Code (TC) X X
Installation Code (IC) A –
Table 2. Compliance Codes
#niPnoitpircseD
1dnuorGsissahC
5piTxT1SD
7)1pooL(piT4LSDH
11dnuorGsissahC
21gnihctiwStcetorPDNG
31)1pooL(gniR4LSDH
51gniRxT1SD
71 −nruteRCDV84
02CCV
72dnuorGsissahC
53 84− CDV
04lortnoCnoitcetorP
14)2pool(piT4LSDH
74)2pooL(gniR4LSDH
94gniRxR1SD
55piTxR1SD
Table 3. T200 H4TU-R Edge Connector Wiring

61222424L1-5B 3
4. HDSL4 SYSTEM TESTING
The T200 H4TU-R rovides diagnostic, loo back, and
signal monitoring ca abilities.
The seven front anel LEDs rovide diagnostics for
HDSL4 loo s, DS1 signals, alarms, rovisioning, and
loo backs. See Table 4.
Table 4. Front Panel Indicators
REM
LOC
LBK
1222424L1
LOCAL
RX
M
O
N
TX
R
S
2
3
2
DSL 1
DSL 2
DS1
ALM
(GRN)
SF
(YEL)
ESF/
(GRN)
AMI
(YEL)
B8ZS /
(GRN)
RLB
(YEL)
LLB /
emaNnoitacidnInoitpircseD
1LSD neerG)nigraMRNS(ytilauqlangis;noitarepolamroN ≥detcetedsrorreondnaBd3
R-UT4Hehtta
deR)nigraMRNS(ytilauqlangis;noitarepoderiapmiylereveS <srorreroBd3
R-UT4Hehttadetceted
2LSD neerG)nigraMRNS(ytilauqlangis;noitarepolamroN 3≥ detcetedsrorreondnaBd
R-UT4Hehtta
deR)nigraMRNS(ytilauqlangis;noitarepoderiapmiylereveS <srorreroBd3
R-UT4Hehttadetceted
1SD neerGR-UT4HehttatneserpsiEPCmorflangis1SD
deRR-UT4HehttatnesbasiEPCmorflangis1SD
MLA FFOdetcetednoitidnocmralaevitcaoN
wolleYdetcetednoitidnocmrala)C-UT4H(etomeR
deRyletomerdnayllacolro)R-UT4H(yllacolrehtiedetcetednoitidnocmralA
)C-UT4HdnaR-UT4H(
FS/FSE FFODEMARFNUsilangis1SDdevieceR
wolleYFSEsignimarflangis1SDdevieceR
neerGFSsignimarflangis1SDdevieceR
IMA/SZ8B wolleY1SDremotsucmorfatadenilSZ8BgniviecersitinU
neerG1SDremotsucmorfatadenilIMAgniviecersitinU
BLR/BLL FFOkcabpoolniTONsitinU
wolleY R-UT4Hehttakcabpoollanoitceridibgnidivorp,kcabpoollacolnisitinU
neerG C-UT4HehttakcabpoollanoitceridibgnidivorP,kcabpooletomernitinU

61222424L1-5B
4
The H4TU-R rovides a bidirectional loo back via the
loo back button on the front anel. Refer to the
H4TU-R Networ Loopbac s and Customer
Loopbac s subsections for more details.
The H4TU-R also rovides a nonintrusive test oint of
the DS1 signal via the jack labeled MON on the front
anel.
DS1 MON Bantam Jacks
The MON jack rovides a nonintrusive access oint
for monitoring the characteristics of the transmit and
receive signals at the DS1 interface oint.
For exam le, the DS1 MON jack on the H4TU-R
could be used to connect to a bit error rate tester to
monitor for synchronization, test atterns, etc.
Figure 2 is an illustration of s ecific jack detail.
Figure 3. 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-R
X
DS1
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
DS1DSX-1
H4TU-C H4TU-RH4R1 H4R2
AIS
X
H4R1 Customer-Side Loopback
DS1DSX-1
H4TU-C H4TU-RH4R1 H4R2
X = Signal Inactive
X
AIS
H4R2 Network-Side Loopback
DS1DSX-1
H4TU-C H4TU-RH4R1 H4R2
AIS
X
H4R2 Customer-Side Loopback
DS1DSX-1
H4TU-C H4TU-RH4R1 H4R2
X
Figure 2. H4TU-R MON Diagram
Rx
Tx
DS1
MON
CPE
DS1
INTERFACE
H4TU-R
T
R
T1
R1
NOTE
For the MON jacks, the Tx and Rx indications
relate to the direction of the CPE signal.
H4TU-R Network Loopbacks
The H4TU-R res onds to multi le loo back activation
rocesses. The loo back osition is a logic loo back
located within the H4TU-R internal HDSL4
transceiver. See Figure 3.

61222424L1-5B 5
The T200 H4TU-R res onds to loo backs rocesses
as follows:
First, manual loo back activation may be
accom lished using the control ort of the H4TU-R.
Second, the H4TU-R will res ond to the industry
standard HDSL loo back codes as designated in the
ANSI document T1E1.4/92. A syno sis of the
method described by ANSI is resented in
Appendix A.
Third, the H4TU-R res onds to T1 Network Interface
Unit (NIU) loo back codes as described in Bellcore
TR-TSY-000312. The NIU loo back codes are as
follows:
In-Band Codes
Loo u ....... 11000 (2 in 5)
Loo down .. 11100 (3 in 5)
ESF Codes
Loo u ....... 1111 1111 0100 1000 (FF48)
Loo down .. 1111 1111 0010 0100 (FF24)
Receiving the in-band codes for more than five
seconds or the ESF codes four consecutive times will
cause the a ro riate loo back action. The ESF codes
must be transmitted in the Facility Data Link (FDL).
NOTE
The NIU loopback option must be enabled
before the H4TU-R can respond to the NIU
loopback.
The H4TU-R will res ond to the loo u codes by
activating the NIU loo back from either the disarmed
or armed state. The loo down codes will return the
H4TU-R to the revious state from the armed or loo
u state.
Refer to Appendix A for more details on loo backs
and loo back arming sequences.
Figure 3 illustrates all of the ossible loo back
locations of the ADTRAN HDSL4 equi ment.
Customer Loopbacks
In addition to the loo backs in the direction of the
network, the H4TU-R may also be loo ed back in the
direction of the customer. The H4TU-C and H4TU-R
Customer Side Loo backs are illustrated in Figure 3.
NOTE
Network and customer loopbacks are governed
by the loopback time out option. (Default=120
minutes.)
5. FRONT PANEL OPERATION
The front anel contains two ushbuttons labeled LOC
and REM.
The LOC ushbutton controls a bidirectional loo back
at the H4TU-R. Pressing the button causes a
bidirectional loo back to occur. If the bidirectional
loo back is active, ressing the button a second time
will disable the loo back.
The REM ushbutton controls a bidirectional
loo back at the H4TU-C. Pressing the button causes a
bidirectional loo back to occur. If the loo back is
active, ressing the button a second time will disable
the loo back.
6. CONTROL PORT OPERATION
The H4TU-R rovides a front anel-mounted DB-9
connector that su lies an RS-232 interface for
connection to a controlling terminal. The inout of
the DB-9 is illustrated in Figure 4.
Figure 4. RS-232 (DB-9) Connector Pinout
9
8
7
6
5
4
3
2
1
SGN (Signal Ground)
TXD (Transmit Data)
RXD (Receive Data)
The terminal interface o erates at data rates from 1.2,
2.4, 4.8, 9.6, and 19.2 kb s. The asynchronous data
format is fixed at 8 data bits, no arity, and 1 sto bit.
NOTE
If you are using a personal computer with
terminal emulation capability, be sure to disable
any power-saving programs. Otherwise,
communication between the PC and the HDSL4
unit may be disrupted, resulting in misplaced
characters or screen time outs.

61222424L1-5B
6
Operation
For abbreviations used in the screen diagrams, see
Table 5.
The screens illustrated in Figures 5 through 21 a ly
to an HDSL4 circuit de loyed with ADTRAN HDSL4
technology. The circuit includes an H4TU-C, u to
two H4Rs and an H4TU-R. Other configurations are
ossible (for exam le, an HDSL4 re eater of another
vendor’s equi ment), and their dis lays will vary
slightly from those shown in this section.
Table 5. Screen Abbreviations
Abbreviation Definition
ES ................... Errored Seconds
DSX/DS1 .......... (SF) The number of seconds in which a BPV or frame bit error occured
(ESF) The number of seconds in which a BPV or CRC error occurs
HDSL4 .............. The number of seconds in which a CRC error occurs
SES ................. Severely Errored Seconds
DSX/DS1 .......... (SF) The number of seconds in which 1544 BPVs or 8 frame bit errors occur
(ESF) The number of seconds in which 1544 BPVs or 320 CRC errors occur
HDSL4 .............. The number of seconds in which 50 CRC errors occur
UAS ................ Unavailable Seconds
DSX/DS1 .......... The number of seconds in which there is a loss of signal
HDSL4 .............. The number of seconds in which there is a loss of sync
SF .................... Superframe Format
ESF ................. Extended Superframe Format
B8ZS ............... Bipolar with 8 Zero Substitution
AMI ................ Alternate Mark Inversion
LBO ................ Line Build Out
BPV ................ Bipolar Violation
DSX/DS1 .......... The number of seconds in which a bipolar violation occurs
NIU ................. T1 Network Interface Unit
S/N .................. Serial Number
15M ................ 15-Minute Period
24H ................. 24-Hour Period

61222424L1-5B 7
A terminal session is initiated by entering multi le
s acebar characters, which are used by the H4TU-R to
determine the s eed of the terminal. Once the s eed
has been determined, an HDSL4 Main Menu (Figure
5) is dis layed.
Figure 5. HDSL4 Main Menu
The Main Menu rovides access to detailed
erformance and configuration information. Selecting
the corres onding number or letter can access the
following screens:
1. HDSL4 Unit Information
2. Provisioning
3. Span Status
4. Loopbacks and Test
5. Performance History
6. Scratch Pad, Circuit ID, Time/Date
7. Terminal Modes
8. Alarm History
9. Event History
10. System PM/Screen Report
11. Virtual Terminal Control
Circuit ID:TOPKKSSLD0932 09/21/02 00:16:40
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. Virtual Terminal Control
Selection:

61222424L1-5B
8
The HDSL4 Unit Information screen (Figure 6)
rovides detailed roduct information on each
com onent in the HDSL4 circuit. This screen also
dis lays contact information for ADTRAN Technical
Su ort, Internet site, and address.
Figure 6. Unit Information Screen
The Provisioning screen (Figure 7) dis lays the
current rovisioning settings for the HDSL4 circuit.
To change a articular o tion setting, select the
a ro riate number, and a new menu will a ear with
a list of the available settings.
NOTE
The rovisioning o tions listed in Figure 7 are
the factory default values.
Figure 7. Provisioning Screen
Circuit ID:TOPKKSSLD0932 09/21/02 00:19:15
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: 1221404L1 P/N: 1222424L1
S/N: AC21A2513 S/N: AC24A3578
CLEI: T1L3ZBZAAA CLEI: T1L5HHUCAA
Manf: 07/10/2002 Manf: 06/29/2002
Ver: 24 1 A00000 Ver: 21 2 A01
ADTN H4R1
P/N: 1221441L1
S/N: CC12A0433
CLEI: T1R6TJEDAA
Manf: 04/02/2002
Ver: 21 1 A00001
Circuit ID:TOPKKSSLD0932 09/21/02 00:27:39
Provisioning
1. DSX-1 Line Buildout = 0-133 Feet
2. DSX-1/DS1 Line Code = B8ZS
3. DSX-1/DS1 Framing = ESF
4. Smartjack Loopback = Disabled
5. Forced Frame Conversion = Enabled
6. Loopback Timeout = 120 Min
7. Latching Loopback Mode = T1 (Disabled)
8. DS1 TX Level = -7.5 dB
9. Customer Loss Indicator = AIS
10. PRM Setting = None
11. Loop Atten Alarm Thres = 34dB
12. SNR Margin Alarm Thres = 04dB
13. Remote Provisioning = Enabled
Selection:

61222424L1-5B 9
The S an Status Screen (Figure 8) rovides quick
access to status information for each HDSL4 receiver
in the circuit.
The Detailed Status (Figure 9) dis lays the HDSL4
margin, attenuation, and estimated insertion loss.
From this screen, Min/Max can be reset.
NOTE
The insertion loss reading shown on the Detailed
Status screen is an approximation that is valid
for some loops. Caution should be used when
using this value.
Figure 9. Detailed Status Screen
Figure 8. Span Status Screen
Circuit ID:TOPKKSSLD0932 09/21/02 00:28:03
Span Status Screen
______ ______ ______
NET | | | | | | CUST
| | | | | |
----->| |-------| |-------------------------------------| |----->
| | | | | |
| | | | | |
<-LOS-| |-------| |-------------------------------------| |<-AIS-
| | | | | |
DSX-1 |______| |______| |______| DS1
H4TUC H4R 1
H4TUR
1. View Detailed Status
Selection:
Circuit ID:TOPKKSSLD0932 09/21/02 00:29:58
Detailed Status Screen
LOOP 1 LOOP 2
MARGIN ATTEN ESTIMATED MARGIN ATTEN ESTIMATED
Interface (CUR/MIN/MAX) (CUR/MAX) INS. LOSS (CUR/MIN/MAX) (CUR/MAX) INS. LOSS
--------- ------------- --------- ---------- ------------- --------- ---------
H4TUC 17/13/17 00/00 00 17/07/17 00/00 00
H4R1 NETW 17/14/17 00/00 00 17/04/17 00/00 00
H4R1 CUST 17/17/17 00/00 00 17/17/17 00/00 00
H4TUR 17/16/17 00/00 00 17/17/17 00/00 00
1. Reset Min/Max
2. View Performance History
Selection:

61222424L1-5B
10
The Loo back and Test Commands screen (Figure
1 ) rovides the user with the ability to invoke or
terminate all available HDSL4 loo backs. Each
HDSL4 circuit com onent can be loo ed toward the
network or customer from this screen.
The Performance History screens (Figure 11 and
Figure 12) dis lay the historical HDSL4 and T1
erformance data in several different registers.
Figure 10. Loopbacks and Test Screen
Figure 11. 15-Minute Performance History Line Data Screen
Circuit ID:TOPKKSSLD0932 09/21/02 00:30:44
Loopback and Test Commands
______ ______ ______
NET | | | | | | CUST
| | | | | |
----->| |-------| |-------------------------------------| |----->
| | | | | |
| | | | | |
<-----| |-------| |-------------------------------------| |<-----
| | | | | |
DSX-1 |______| |______| |______| DS1
H4TUC H4R 1
H4TUR
1. Run Self Tests 7. H4R1 Loopup Cust
2. H4TU-C Loopup Net
3. H4TU-C Loopup Cust
4. H4TU-R Loopup Net
5. H4TU-R Loopup Cust
6. H4R1 Loopup Net
Selection:
Circuit ID:TOPKKSSLD0932 09/21/02 00:35:23
Menu 15 Minute H4TUC DSX-1 Performance Data
1. Definitions ES-L SES-L LOSS-L PDVS-L B8ZS-L CV-L
2. Reset Data 325 325 326 000 000 00000
3. 15 Min Data 00:30 900 900 900 000 000 00000
4. 60 Min Data 00:15 900 900 900 000 000 00000
5. 24 Hr Data 00:00 900 900 900 000 000 00000
6. Line Data 23:45 900 900 900 000 000 00000
7. Path Data 23:30 900 900 900 000 000 00000
8. H4TUC DSX-1 23:15 900 900 900 000 000 00000
9. H4TUC LOOP 23:00 900 900 900 000 000 00000
10. H4TUR LOOP 22:45 900 900 900 000 000 00000
11. H4TUR DS1
12. H4R #1 NETW
13. H4R #1 CUST ___ ___ ___
| C | |#1 | | R |
-8->| |-----| |-------------------------| |—>
| |9 12| |13 10| |
<---| |-----| |-------------------------| |<-11
|___| B. Backward |___|
Selection:

61222424L1-5B 11
At each 15-minute interval, the erformance
information is transferred to the 15-minute
erformance data register. This unit stores
erformance data in 15-minute increments for the last
24-hour eriod. At each 24-hour interval, the
erformance data is transferred into the 24-hour
erformance data registers. This unit stores u to 31
days of 24-hour interval data.
Figure 12. 24-Hour Performance History Line Data Screen
To view the erformance data, select the desired
module and interface. Line (L) and Path (P) are
available.
Abbreviations used in the Performance History
screens are defined in Data Definition screens. See
Figure 13 and Figure 14.
Figure 13. Performance Data Definitions Screen
Circuit ID:TOPKKSSLD0932 09/21/02 00:36:26
Menu 24 Hour H4TUC DSX-1 Performance Data
1. Definitions ES-L SES-L LOSS-L PDVS-L B8ZS-L CV-L
2. Reset Data 02189 02189 02190 00000 00000 0000000
3. 15 Min Data 09/20 65535 65535 65535 00002 00000 0000002
4. 60 Min Data 09/19 65535 65535 65535 00002 00000 0000002
5. 24 Hr Data 09/18 65535 65535 65535 00001 00000 0000001
6. Line Data 09/17 65535 65535 65535 00004 00000 0000004
7. Path Data 09/16 65535 65535 65535 00000 00000 0000000
8. H4TUC DSX-1 09/15 65535 65535 65535 00002 00000 0000002
9. H4TUC LOOP 09/14 65535 65535 65535 00004 00000 0000004
10. H4TUR LOOP
11. H4TUR DS1
12. H4R #1 NETW
13. H4R #1 CUST ___ ___ ___
| C | |#1 | | R |
-8->| |-----| |-------------------------| |--->
| |9 12| |13 10| |
<---| |-----| |-------------------------| |<-11
|___| B. Backward |___|
Selection:
Circuit ID:TOPKKSSLD0932 09/21/02 00:41:23
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:

61222424L1-5B
12
Figure 14. Performance Data Definitions Screen (Continued)
Figure 15 illustrates the Scratch Pad, Circuit ID, and
Time/Date screen. The Scratch Pad data can be any
al hanumeric string u to 50 characters in length. The
Circuit ID can be any al hanumeric string u to 25
characters in length.
CICI
CICI
C Ircuit ID:TOPKKSSLD0932 09/21/02 00:43:47
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:
Figure 15. Scratch Pad, Circuit ID, Time/Date Screen
CC
CC
Circuit ID:TOPKKSSLD0932 09/21/02 00:49:31
Current Scratch Pad: RJ45 jack in broom closet
New Scratch Pad = RJ45 jack in broom closet
New Circuit ID =
New Date = / / (MM/DD/YY)
New Time = : : (HH:MM:SS)
Press TAB to skip to next entry field.
The time should be entered using military time. (For
exam le, enter 3:15 .m. as “151500”.)
The date should be entered as MMDDYY. (For
exam le, enter January 02, 2003, as “010203”.)

61222424L1-5B 13
Figure 16. Terminal Modes Menu
This unit includes two terminal emulation modes.
These modes are described on the Terminal Modes
Menu (Figure 16).
NOTE
Pressing CTRL T while on any screen will toggle
between Manual and Real Time Terminal Modes.
The Manual U date Mode allows the user to manually
u date the rovisioning o tion screens. This mode
su orts efficient rint screen and log file utilities for
storage of key rovisioning arameters, alarm or
erformance history, and current system status. “3
SPACES TO UPDATE” a ears at the to of each
screen. Pressing the s acebar 3 times will cause the
screen to refresh and reflect the most current circuit
conditions and rovisioning o tions.
The default terminal emulation mode is the Real Time
U date Mode (VT100). This mode rovides real time
u dating of HDSL4 circuit conditions and
rovisioning o tions as changes occur. While in Real
Time U date Mode, the unit is antici ating baud oll
res onses from the terminal.
NOTE
When operating in Virtual Terminal Mode, the
terminal baud rate should be 4.8 kbps or higher.
The remote terminal session is automatically
initiated if a terminal is connected to the H4TU-R,
and the HDSL4 loops are in sync with the
H4TU-C. When a remote terminal session is in
progress, the screens are not accessible from the
H4TU-C. Once a remote terminal session is
terminated, the screens are available at the
H4TU-C. The remote terminal session is
terminated by typing CTRL X on the terminal at
the H4TU-R. Alternatively, if there is no
keyboard input at the H4TU-R’s terminal for a
period of 5 minutes, the remote session will time
out, and the screens will once again be available
at the H4TU-C. After the 5-minute time out, the
remote terminal session can be reinstated at the
H4TU-R by pressing the space bar several times.
CC
CC
Circuit ID:TOPKKSSLD0932 09/21/02 00:50:53
TERMINAL MODES MENU
MANUAL UPDATE MODE:
* You can print or log screens
* No text is highlighted
* “3 SPACES TO UPDATE” appears at the top of each screen,
reminding you to press the spacebar 3 times to update the screen
* There is a delay between screen changes & updates
* After 30 min. of no interaction, a new baud rate search is begun
* Ignores input until screen is finished printing.
REAL-TIME UPDATE MODE:
* Faster of the two modes
* You cannot print screens to a log file
* Highlighting is enabled
* Recommended for daily operation
Press CTRL+T to toggle update modes on any screen.

61222424L1-5B
14
Figure 17. T1 Alarm History Screen
The T1 Alarm History screen (Figure 17) rovides the
user with a detailed alarm history and events log for
the T1 circuit. This screen includes a time, date, first/
last occurrence, and count for each ty e of HDSL4 or
T1 alarm. The HDSL4 S an History screen (Figure
18) lists alarms that have occurred on the s an
between the H4TU-C and H4TU-R.
Figure 18. HDSL4 Span History Screen
CIrcuit ID:TOPKKSSLD0932 09/21/02 00:51:30
T1 Alarm History
LOCATION ALARM FIRST LAST CURRENT COUNT
--------------------------------------------------------------------------------------
H4TU-C RED(LOS/LOF) 01/01/00 00:00:34 09/20/02 18:45:32 Alarm 018
(DSX-1) YELLOW(RAI) OK 000
BLUE(AIS) OK 000
H4TU-R RED(LOS/LOF) 08/11/02 19:31:25 09/14/02 11:31:03 OK 016
(DS1) YELLOW(RAI) OK 000
BLUE(AIS) 01/01/00 00:00:03 09/21/02 00:17:02 Alarm 067
--------------------------------------------------------------------------------------
1. T1 Alarm 4. Span H4R1 to H4TUR
2. Facility Alarm C. Clear T1 Alarms
3. Span H4TUC to H4R1
Selection:
CC
CC
Circuit ID:TOPKKSSLD0932 09/21/02 04:02:52
HDSL4 Span History
LOCATION ALARM FIRST LAST CURRENT COUNT
--------------------------------------------------------------------------------
SPAN C-H1 L1 LOS 08/13/02 18:41:09 08/24/02 02:28:24 OK 004
L2 LOS 08/11/02 19:31:26 09/07/02 21:01:38 OK 036
H4TU-C L1 MRGN 08/13/02 18:40:35 09/19/02 04:00:45 OK 040
L2 MRGN 08/11/02 19:31:20 09/20/02 18:45:31 OK 061
H4R1 NET L1 MRGN 08/13/02 18:40:34 09/19/02 04:00:45 OK 049
L2 MRGN 08/11/02 19:31:24 09/21/02 00:16:29 OK 050
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 H4TUR
2. Facility Alarm C. Clear Span Alarms
3. Span H4TUC to H4R1
Selection

61222424L1-5B 15
The Event History screen (Figure 19) rovides a log
history of HDSL4 circuit events.
Figure 19. Event History Screen
The System PM/Screen Re ort o tion from the Main
Menu offers four ty es of re orts on erformance
monitoring. Selecting a re ort ty e will then dis lay
all the re orts for that category on the screen at once,
which is more efficient than ste ing through the
menus individually. See Figure 2 .
CC
CC
Circuit ID:TOPKKSSLD0932 09/21/02 04:03:29
Num Description of Event Date Time Source
--------------------------------------------------------------------------
41. H4TU-C Powered Up 09/18/02 20:45:44 H4TU-C
42. H4TU-R Powered Up 09/19/02 04:00:01 H4TU-R
43. H4TU-C Powered Up 09/19/02 04:00:44 H4TU-C
44. H4TU-R Powered Up 09/19/02 10:45:01 H4TU-R
45. H4TU-C Powered Up 09/19/02 10:45:43 H4TU-C
46. H4TU-R Powered Up 09/20/02 11:15:01 H4TU-R
47. H4TU-C Powered Up 09/20/02 11:15:41 H4TU-C
48. H4TU-R Powered Up 09/20/02 18:45:01 H4TU-R
49. H4TU-C Powered Up 09/20/02 18:45:43 H4TU-C
Page Number: 5/ 5 Number of Events: 49
--------------------------------------------------------------------------
‘P’ - Previous Page ‘H’ - Home ‘R’ - Reset Events
‘N’ - Next Page ‘E’ - End
Selection:
Figure 20. System PM/Screen Report Option
6. SCRATCH PAD, CKT ID, TIME/DATE
7. TERMINAL MODES
8. ALARM HISTORY
9. EVENT HISTORY
10. SYSTEM PM/SCREEN REPORT
11. 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

61222424L1-5B
16
Figure 21. Virtual Terminal Control Screen
CC
CC
Circuit ID:TOPKKSSLD0932 09/21/02 04:04:14
Virtual Terminal Session: Inactive
Virtual Host: no
Virtual Terminal Control
1. Log into H4TU-C
Selection:
Figure 21 illustrates the Virtual Terminal Control
screen. Use this screen to log onto the H4TU unit at
the o osite end of the circuit.

61222424L1-5B 17
7. HDSL4 DEPLOYMENT GUIDELINES
The different segments of an HDSL4 circuit are
illustrated in Figure 22.
The ADTRAN HDSL4 system rovides DS1-based
services over loo s designed to com ly with the
guidelines given below. These guidelines a ly 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 3 segments (with two H4Rs).
1st Segment
H4TU-C 1st H4R 2nd H4R H4TU-R
2nd Segment 3rd Segment
Figure 22. HDSL4 Circuit Segments
The guidelines reflected herein are for worst-case
scenarios (that is, for loo s that contain a maximum
amount of disturbers, noise, etc). Actual de loyment
guidelines may vary based on local olicy. Please
refer to those guidelines to ensure o timum
erformance.
Designing a circuit with loo attenuation greater than
the recommended maximum loss (yellow zone) may
result in com romised reliability of that loo . The
guidelines are rovided in numbers 1 through 9,
which follow:
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.
)enoZneerGtnatsissALSD(mumixaMdednemmoceR
maertspUmaertsnwoD
1
ts
tnemgeSBd13Bd33
2
dn
3/
dr
tnemgeSBd03Bd03
Table 6. Attenuation Limits from DSL Assistant
eguaG62 )enoZneerGtnatsissALSD(mumixaMdednemmoceR
1
ts
tnemgeStfk8.01
2
dn
3/
dr
tnemgeStfk55.01
3
dr
tnemgeS )etonees(tfk55.01
Table 7. Range Limits: 26 Gauge/70ºF/PIC
eguaG42 )enoZneerGtnatsissALSD(mumixaMdednemmoceR
1
ts
tnemgeStfk52.51
2
dn
3/
dr
tnemgeStfk50.51
3
dr
tnemgeS )etonees(tfk50.51
Table 8. Range Limits: 24 Gauge/70ºF/PIC

61222424L1-5B
18
ADTRAN rovides an excellent com uter-aided loo
design tool called DSL Assistant that rovides these
loo loss design criteria automatically. The
color-coded loo attenuation results rovide green
when the loss is at or below the recommended
maximum loss, yellow if the loss is more than
recommended but below the absolute maximum and
red if the loss exceeds the T1.418 standard based
absolute maximum.
NOTE
In three segment circuits (two H4Rs), individual
segment resistance values must be verified. See
aragra h Number 7 below.
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 insertion loss and 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
insertion loss requirements for cable reach will
encounter s an owering roblems if resistance
values are excessive.
The segment resistance (Ω segment) is determined using
this equation:
Ωsegment = L26 * Ω26 + L24 * Ω24 + L22 * Ω22 + L19 * Ω19
where : L# is the length of # AWG cable (kft,
excluding bridge ta s), Ω# is the D.C.
Resistance of # AWG cable
Table 9 lists single air cable DC resistance values to
be used in the equation above.
Table 9. Single Pair Cable DC Resistance Value (Ω)
)tfk/smhO(ecnatsiseR
GWAFº07*ºFº09Fº021**Fº041
91
22
42
62
564.61
600.33
894.25
574.38
381.71
644.43
987.45
711.78
162.81
606.63
522.85
185.29
979.81
640.83
615.06
322.69
atadFº021dnaFº07neewtebdetalopretnI*
atadFº021dnaFº07morfdetalopartxE**

61222424L1-5B 19
Once the resistance of each segment is confirmed,
refer to Figure 23 to decide if the H4TU-C is ca able
of s an owering two H4Rs and one H4TU-R.
Follow these ste s to utilize the gra h shown in
Figure 23:
a) Find the line on the graph which represents the
known third segment resistance. These are the
lines running diagonally across the graph labeled
300 - 1100 ohms. This line represents the upper
limit for two H4Rs plus H4TU-R span powering.
b) Find the first segment resistance on the vertical
axis.
c) Find the second segment resistance on the
horizontal axis.
d) Find the instance where the two points from
Steps b and c meet on the graph.
e) The point found in step d must be below the
upper limit line defined by the third segment
measurement (Step a). If the instance where these
two points is above this line, the H4TU-C cannot
span power two H4Rs and the H4TU-R.
Note that these measurements re resent only one of
the two HDSL4 airs.
Figure 23. Resistance Budget Span Powering Two Repeaters
3
0
0
o
h
m
s
5
0
0
o
h
m
s
7
0
0
o
h
m
s
9
0
0
o
h
m
s
1
1
0
0
o
h
m
s
HDSL4 Single Pair Resistance for Span Powering Two Repeaters and an H4TU-R
Resistance Budget
Second Segment Resistance (ohms)
First Segment Resistance (ohms)
1100
1000
900
800
700
600
500
400
300
300 400 500 600 700 800 900 1000 1100
WITHIN LIMITS
OUTSIDE LIMITS
Third Segment Resistance

61222424L1-5B
20
An exam le roblem is illustrated in Figure 24. For
this exam le, begin with three known measurements:
600 ohm first segment resistance, 700 ohm second
segment resistance, and 900 ohm third segment
resistance. Refer to Figure 24 and the following ste s
to solve the exam le roblem:
a) Find the 900 ohm third segment resistance line
on the graph. This line is depicted in bold in
Figure 24. This line is the upper span power
limit.
b) Find the 600 ohm first segment resistance point
on the vertical axis.
c) Find the 700 ohm second segment resistance
point on the horizontal axis.
d) Find the instance on the graph where the points
from Steps b and c meet.
e) If this point is below the bold line defined in
Step a, the circuit is capable of span powering
two H4Rs and one H4TU-R.
Figure 24. Resistance Budget Span Powering Two Repeaters (Example)
3
0
0
o
h
m
s
5
0
0
o
h
m
s
7
0
0
o
h
m
s
9
0
0
o
h
m
s
1
1
0
0
o
h
m
s
HDSL4 Single Pair Resistance for Span Powering Two Repeaters and an H4TU-R
Resistance Budget
Second Segment Resistance (ohms)
First Segment Resistance (ohms)
1100
1000
900
800
700
600
500
400
300
300 400 500 600 700 800 900 1000 1100
WITHIN LIMITS
OUTSIDE LIMITS
Third Segment Resistance