ADTRAN HDSL 851 Instruction Manual

161190851L2-5, Issue 261190851L2-5C
Section 61190851L2-5C
Issue 3, May 2013
CLEI # T1TSRPHF _ _
HDSL 851 Remote Installation Kit
Installation and Maintenance
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
1. GENERAL
This practice provides installation and operation
procedures for the ADTRAN HDSL 851 Remote
Installation Kit. The HDSL 851 Remote Installation
Kit is designed for use with the ADTRAN HDSL 852
Central Office Installation Kit, part number
1190852L2. Figure 1is an illustration of the HDSL
Remote Installation Shelf. This kit can house any
standard T200 or T400 card and thereby support any
number of technologies to include T1, HDSL,
HDSL2, DDS, ISDN, TR-DDS, TR-ISDN, FT1, and
others. This practice is written around the HDSL
application.
Revision History
Issue 2 revises ordering guide tables.
Issue 3 removes the carrying case.
Features
The HDSL 851 Remote Installation Kit, part number
1190851L2, includesthe following features:
•Compact construction installation unit.
•Optional adapter for 239/439 size repeaters.
• Span powered.
•Connections for local power.
•Bantam to alligator connections.
Adapter Insert
A separately purchased adapterinsert configures the
T200/400 form factor to accommodate the following
mechanics:
•Insert T200/400 to 239/439 form factor
P/N 1190851L22
Figure 1. HDSL 851 Remote Installation Shelf
TABLES
Table 1. Line Units ................................................. 5
Table 2. Specications ........................................... 8
Table 3.Ordering Guide for the Remote Shelf...... 8
Table 4.Ordering Guide for the CO Shelf............. 8
FIGURES
Figure 1. HDSL 851 Remote Installation Shelf...... 1
Figure 2. HDSL Circuit Simulation........................ 2
Figure 3. Front Panel Features................................ 3
Figure 4. Rear Panel Features.................................. 3
Figure 5. Test Cable ................................................ 5
Figure 6. Testing HDSL Live Units........................ 5
Figure 7. Adding a Repeater to HDSL Circuit........ 6
Figure 8. Accessing an HDSL Circuit from the
Remote End .............................................. 6
Figure 9. T1 BERT Testing of an HDSL Circuit.... 7
Figure 10.Adapter Insert Installation........................ 8
CONTENTS
1. GENERAL.......................................................... 1
2. OPERATION...................................................... 2
3. TESTING............................................................ 5
4. SPECIFICATIONS ............................................ 8
5. MAINTENANCE ............................................... 9
6. WARRANTY AND CUSTOMER SERVICE... 9
CAUTION:
RI S
K OF ELECTRICAL
SHOCK. MAXIMUM
VOLTAGES UP TO
-200 VDC M
AY BE
PRESENT O
N TELECOM
CIRCUI TS.
1190851L2
HDSL 851 REPEATER/
REMOTE
ESD
GND
RPTR. C.O.
CABLE PAIRS
RPTR. TO REM
OTE
CABLE PAIRS
LP1 LP2 LP1 LP2
REMOTE
CABLE PAIRS
DS1
LP1 LP2 LP1 LP2
RPTR
IN OUT

C5-2L158091163eussI,5-2L158091162
NOTE
The installation kit and adapter insert described
here is not compatible with previous kit and
adapter assemblies.
Description
The HDSL Remote Installation Kit simulatesthe
operation of the remote end of an HDSL circuit with
an installed remote line unit.
Make-or-break jacksand signal jacksin each
installation kit provide access to the HDSL circuit’s
loop 1 and loop 2 signals. Inserting a test cable into a
jack breaksthe HDSL circuit at that point and delivers
the signal out of the jack. The jackscan be used to
insert an HDSL installation kit into an HDSL circuit at
different points such asthe central office end or
remote end in order to test circuit or line unit
operation.
The jacks canalso be used to connect HDSL
installation kitstogether to simulate an HDSL circuit’s
signal path. Afully operational HDSL circuit can be
created by connecting a COinstallation kit to a remote
installation kit and installing HDSL line units. See
Figure 2for a diagram of an HDSL circuit simulation.
To simulate an HDSL circuit with a repeater, push IN
the repeater selection switch on the remote unit.
2. OPERATION
After unpacking the unit, inspect it for damage. If
damage isnoted, file a claim with the carrier, then
notify ADTRAN. See Warranty and Customer
Service.
The Remote Installation Kit is shipped complete with
remote shelf and dual bantam to alligator cables.
Front Panel Features
The HDSL Remote Installation Kit front panel
featuresremote and repeater unit slots, four dual-
bantam jacks, a repeater selection button, and two
ground lugsfor ESD ground and earth ground.
The remote unit slot acceptsan HDSL remote line
unit. The repeater unit slot acceptsa repeater line
unit. The repeater selection button controls whether
the repeater installed in the remote installation kit is
inserted into the HDSL circuit. When the button is
pressed IN, the repeater isinserted into the HDSL
circuit. When the button isplaced OUT, the repeater
is removed from the HDSL circuit.
There are four dual-bantam jackson the front panel.
The Repeater CO-side LP1/LP2 signal jacksprovide
access to the repeater’sCO-side loop 1 and loop 2
signals. The repeater remote-side LP1/LP2 signal
jacksprovide access to the repeater’sremote-side loop
1 and loop 2 signals.
Figure 2. HDSL Circuit Simulation
CO
DSX Access
Jacks
Remote
DS1 Access
Jacks
CO
LP1/LP2
Signal Jacks
Repeater CO
Side LP1/LP2
Signal Jacks
Repeater
In/Out
Switch
852
Shelf
CO
Bay
851
Shelf
Repeater
Bay
851
Shelf
Remote
Bay
Repeater
Remote Side
LP1/LP2
Make/Break
Jack
Remote
LP1/LP2
Make/Break
Jack
HDSL 852 CO Power Shelf HDSL 851 Repeater/Remote Shelf

361190851L2-5, Issue 361190851L2-5C
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
The remote LP1/LP2 signal jacksprovide access to
the remote’sCO side loop 1 and loop 2 signals. The
DS1 TXand RX signal jacksprovide access to the
DS1 signalson a remote line unit installed in the
remote unit slot. These jacksare used when the line
unit front panel doesnot have jacksfor accessing the
DS1 signals. The TXisan input jack and RXisan
output jack.
See Figure 3for front panel features.
Figure 4shows the HDSL 851 rear panel power
adapter along with compliance and electrical safety
precautions.
Powering the HDSL Remote Installation Kit
WARNING
On a live HDSL circuit, potentially dangerous
voltage may be present on the loop 1 and loop 2
signals. Use extreme caution when accessing
these signalsat the LP1/LP2 jacks.
The ADTRAN HDSL Remote Installation Kit can be
powered by installing cablesbetween itsLP1/LP2
signal jacksand the LP1/LP2 signal jackson the
Central Office Installation Kit. See the documentation
for the HDSL COInstallation Kit (P/N 1190852L2)
for directionson powering the CO. When span
powering isnot available, the unit can be locally
powered by applying -48 Vdc to connectorson the
back of the unit.
Preventing ESD Damage
To prevent damage caused by electrostatic discharge
(ESD), followthese precautions when using the HDSL
Installation Kit.
1. Install the ground cable between ground and the
bottom ground lug on the front of the HDSL
Installation Kit.
2. When working with HDSL line units, make sure
your ESD wrist strap is attached to the top ground
lug on the front of the HDSL installation kit.
Figure 3. Front Panel FeaturesFigure 4. Rear Panel Features
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, and
(2) this device must accept any interference received,
including interference that may cause undesirable
operation.
FOR PROTECTION FROM
ELECTRICAL SHOCK HAZARD,
ENSURE PROPER FRAME GROUND
CONNECTION. FOR USE BY
QUALIFIED SERVICE
PERSONNEL ONLY.
WARNING
USE COPPER
CONDUCTORS ONLY
-48VDC 0.2A
— +
POWER CODE (PC)
TELECOMMUNICATION CODE (TC)
INSTALLATION CODE (IC)
F
X
E
C
X
-
IN OUT
ESD
GND
LP1 LP2 LP1 LP2
DS1
LP1 LP2 TX RX
IN OUT
Repeater Unit
Slot
Remote Unit
Slot
RPTR. C.O.
CABLE PAIRS
RPTR. TO REMOTE
CABLE PAIRS
RPTR
REMOTE
CABLE PAIRS
CAUTION:
RISK OF ELECTRICAL
SHOCK. MAXIMUM
VOLTAGES UP TO
-200 VDC MAY BE
PRESENT ON TELECOM
CIRCUITS.
1190851L2
HDSL 851 REPEATER/REMOTE

C5-2L158091163eussI,5-2L158091164
Installing HDSL Line Units
The following stepsdescribe howto install an HTU-R
line unit into the HDSL Remote Installation Kit,
connect the line unit to the HDSL circuit, and remove
the line unit.
1. Locate the slot to install the line unit on the
HDSL Remote Installation Kit.
NOTE
Before handling line units, connect the HDSL
Installation Kit to ground and connect the ESD
wrist strap to the installation kit.
2. Grasp the HTU-R by itsfront panel and align it
with the guidesin the slot. Slide the line unit into
the slot until it seatsfirmly with the connector at
the rear.
3. Connect it to the HDSL circuit by installing a
cable betweenthe LP1 and LP2 signal jacks on
the HDSL Installation Kit and the HDSL circuit’s
loop 1 and loop 2 twisted pairs. Maintain signal
polarity by observing the color coding of the
cable ends. ADTRAN HDSL unitsare
insensitive to either loop or pair reversals.
•Repeater line unit - Connect the repeater input
LP1/LP2 signal jacksto the loop 1 and loop 2
twisted pairs, respectively, from the central
office end of the HDSL circuit. Connect the
repeater output LP1/LP2 signal jacksto the
loop 1 and loop 2 twisted pairs, respectively,
going to the remote end of the HDSL circuit.
NOTE
If the remote line unit is installed in the HDSL
Remote Installation Kit, the installation kit’s
internal circuitry completes the connection
between the repeater output LP1/LP2 signal
jacksand the remote line unit.
•Remote line unit – connect the remote LP1/
LP2 signal jacks to the loop 1 andloop 2
twisted pairs, respectively, coming from the
central office end of the HDSL circuit.
4. To remove an HTU-R, remove the patch cord
connecting the line unit to the HDSL circuit. Pull
the ejector lever on the bottom of the HTU-R, or
grasp the line unit by itsfront panel and gently
pull it from the slot, observing ESD precautions.
Installing Test Cables
The HDSL Installation Kit isconnected to the HDSL
circuit by installing test cablesbetween the installation
kit’sLP1 and LP2 signal jacksand the twisted pair or
twisted pairsthat form the HDSL circuit. The cables
are attached depending on the installation asfollows:
• For a single-pair HDSL installation, use a test
cable witha single-bantam endand two alligator
clips. Insert the cable’sbantam end in the LP1
signal jack, and attach each alligator clip to one
of the wiresin the twisted pair.
• For a two-pair HDSL installation, use a test cable
with a dual-bantam end and four alligator clips.
Insert the cable’sbantam end in the LP1/LP2
signal jacks, and attach each set of alligator clips
to the wiresin the corresponding twisted pair.
• For ADTRAN HDSL, the loopsare insensitive to
tip-ring reversal. For other applications, such as
standard T1 testing, the following describesthe
polarity of the test set. The bantam to alligator
clip test cablesin the HDSL Installation Kit
indicate tip and ring connectivity asfollows:
–The alligator clip cable endsare color coded
red (tip) and green (ring) loop 1, yellow(tip)
and black (ring) loop 2.
–The sleeveson the alligator clip cable endsare
labeled to match their corresponding bantam
end.
–When installing a test cable, maintain signal
polarity by matching the LP1/LP2 bantam
cable endsto the correct alligator clip ends
(LP1 bantam to loop 1 alligator clips, and LP2
bantam to loop 2 alligator clips). It doesnot
matter which twisted pair isconsidered loop 1
or loop 2 aslong asthe designationsare
consistent. See Figure 5.

561190851L2-5, Issue 361190851L2-5C
3. TESTING
Testing Line Units
This section describes the method for testing HDSL
line units (See Figure 6).
2. Verify that the other required line unitsare available
for the test (see Table 1). The required line unit(s)
can either be installed in another HDSL Installation
Kit, or in an HDSL circuit.
NOTE
Verify that the required line units are operational
before proceeding.
3. Install patch cablesto make the necessary
connectionsbetween the line unit being tested
and the required line units.
If the required line unit(s) isinstalled in another
HDSL Installation Kit, install patch cablesbetween
the LP1/LP2 signal jacks on each HDSL Installation
Kit. If the required line unit(s) isin the HDSL circuit,
install patch cablesbetween the HDSL Installation
Kit’sLP1/LP2 signal jacksand the HDSL circuit’s
loop 1 and loop 2 twisted pairs.
4. If a repeater line unit is being tested, or if the
operation of a CO line unit is being tested with a
repeater, place the repeater selection button on
the remote unit IN. To perform the test without
the repeater, place the repeater button OUT on
the Remote Installation Kit.
5. When power isapplied, the HDSL Installation
Kit tests the operation of the line unit.
Observe LED indication on the line unit front panel to
determine whether the line unit isoperational.
Loop 1
Loop 2
RedLoop 1 (T)
Loop 1 (R)
Loop 2 (T)
Loop 2 (R)
Green
Yellow
Black
Figure 5. Test Cable
Figure 6. Testing HDSL Live Units
C
AU
TION
:
RISKO
FELEC
T
RIC
A
L
SH
OCK. M
AX
IM
U
M
VOL
TA
GE
SU
P
TO
-200V
DC
M
AYBE
PRE
SEN
T
O
N
TEL
E
CO
M
C
IR
C
U
IT
S.
1190852L2
HD
SL
852C
O
P
O
WE
R
REM
OT
E
L
P1 LP
2
D
S
1
T
XRX
E
SD
G
N
D
DSX-1
LBO
B8ZS
FRM
ESF
NIULB DIS
LBTIMEOUT DIS
533
399
2661330
EXT
1246001L2
LBK
ALM
DSX
DSLTX
RX
TX
RX
M
O
N
E
Q
HTU-CM
AMI
UFRM
SF
EN
EN
12345
CAU
T
IO
N:
RISKO
FE
LE
CT
RIC
A
L
SH
O
CK
. M
AX
IM
U
M
V
OLT
AG
E
SU
PT
O
-200VD
CMA
YBE
P
RESE
NT
ON
TE
LE
CO
M
CIR
CU
IT
S.
1190852L2
HD
SL852 C
O
PO
WER
RE
MO
T
E
LP
1LP
2
D
S
1
TX RX
E
SD
GN
D
DSX-1
LBO
B8ZS
FRM
ESF
NIULB DIS
LBTIMEOUTDIS
533
399
2661330
EXT
1246001L2
LBK
ALM
DSX
DSL TX
RX
TX
RX
M
O
N
E
Q
HTU-
CM
AMI
UFRM
SF
EN
EN
12345
Patch
Cables
CO Line Unit Being
Tested
115 VAC
Known Good CO
Line Unit
Remote Line Unit
Being Tested
Known Good Remote
Line Unit
Distribution
Frame
HDSL
Circuit
C
A
UT
ION
:
R
ISK
OFE
L
EC
TR
IC
A
L
SHO
CK
. M
AX
IMU
M
V
OL
TA
GESUP
T
O
-200V
DC
M
A
YBE
P
R
E
SE
N
T
O
N
T
E
L
EC
O
M
C
IRC
U
IT
S.
1190851L
2
H
DSL
851REP
EATER
/R
EMOT
E
E
SD
GN
D
RPTR.C.O
.
CABLEPAIRS
R
PT
R.TO
R
EM
OTE
CABLEP
AIRS
LP
1L
P2 L
P
1L
P
2
REMO
TE
C
AB
LEPAIRS
D
S1
L
P
1L
P2 L
P1 LP2
R
P
T
R
IN O
UT
HRE
1246041L1
PWR
LP1
LP2
LP1
LP2
LBK
CA
U
TION:
R
ISKOFE
L
EC
T
RIC
A
L
SH
O
CK. M
A
XIM
U
M
V
O
LTA
GE
SU
P
T
O
-200V
DC
M
AYBE
PR
E
SEN
TON
T
EL
E
CO
M
C
IR
C
UIT
S.
1190851L2
H
D
SL851 R
E
PE
ATER/REMO
T
E
E
S
D
GN
D
RPTR. C
.O.
CABLEP
AIR
S
R
PTR
.TO
REM
O
TE
CABL
E
PAIR
S
L
P
1L
P
2L
P
1LP2
REM
O
TE
CABLEPAIRS
DS1
LP
1LP2 L
P1 L
P
2
RPT
R
IN O
UT
HRE
1246041L1
PWR
LP1
LP2
LP1
LP2
LBK
detseTgnieBtinUeni sL tinUeniLderiuqeRlanoitiddA
tinuenilO *C tinueniletomeR
tinueniletome *R tinuenilOC
tinuenilretaepe tR inuenilOC
tinueniletomeR
oslasitinuenilretaepera,retaeperahtiwnoitarepotsetoT*
.deriuqer
.yletarapesdesahcruperastinuenilllA:etoN
Table 1. Line Units
The stepsare asfollows:
1. Install the line unit to be tested in the appropriate
HDSL Installation Kit.
CAUTION
Before handling line units, make sure the HDSL
Installation Kit is connected to earth ground and
the ESD wrist strap is connected to the installation
kit.

C5-2L158091163eussI,5-2L158091166
Adding a Repeater to an HDSL Circuit
This section describesthe procedure for adding a
repeater into a circuit to verify the operation of a
currently installed repeater, or to determine whether
the cable span might work better with a repeater (See
Figure 7).
4. Place the repeater selection button INto insert
the HDSL Remote Installation Kit repeater into
the circuit. Place the repeater selection button
OUT to remove the repeater from the circuit.
5. When power isapplied to the HDSL circuit, the
HDSL Remote Installation Kit can be used to test
repeater line units, or the LP1/LP2 signal jacks
can be used to access the circuit’sloop 1 and
loop 2 signals.
NOTE
The repeater selection button (IN/OUT) can be
used to observe the operation of the HDSL
circuit with and without a repeater.
Accessing an HDSL Circuit from the Remote
End
The HDSL Remote Installation Kit can be used to
access the HDSL circuit from the remote end, or to
simulate the remote end for testing purposes (See
Figure 8).
The process is as follows:
WARNING
On a live HDSL circuit, potentially dangerous
voltage may be present on the loop 1 and loop 2
signals. Use extreme caution when accessing
these signals.
Figure 8. Accessing an HDSL Circuit
from the Remote End
Remote Installation Kit
CO Unit
HDSL Cable Pairs
Customer
Equipment
or NIU
C
AU
T
IO
N:
R
ISKO
FEL
E
CTR
IC
AL
SH
OC
K. M
A
XIM
U
M
VO
LT
A
G
ESUPT
O
-200VDC
MA
YBE
P
RE
SENT
ONT
E
LE
C
O
M
CIRCU
IT
S.
1190851L2
HDSL 851 REPEATER/REM
OTE
ES
D
G
ND
R
PTR.C.O.
CA
BLE P
AIR
S
RPTR
.T
O
REMO
TE
CABLEP
AIR
S
L
P
1LP
2LP1 LP2
RE
M
OT
E
C
ABLEPA
IR
S
DS1
LP
1L
P
2LP
1L
P
2
RP
T
R
IN OUT
To perform thisprocedure, access to the cable span at
a midpoint, such asa cross-connect, must be obtained.
The stepsare asfollows:
WARNING
On a live HDSL circuit, potentially dangerous
voltage may be present on the loop 1 and loop 2
signals. Use extreme caution when accessing
these signals.
1. Install an HDSL repeater line unit in the Remote
Installation Kit. Before handling the line unit,
make sure the HDSL assistant isconnected to
ground and the ESD wrist strap isconnected to
the installation kit.
2. Install a test cable to make the following
connections. Be sure to maintain signal polarity
with the test cables. Connect the repeater central
office side LP1 signal jack to the loop 1 twisted
pair from the central office end, and connect the
repeater central office side LP2 signal jack to the
loop 2 twisted pair from the central office end.
3. Install another test cable to connect the repeater
remote LP1 signal jack to the loop 1 twisted pair
going to the remote end, and connect the repeater
remote LP2 signal jack to the loop 2 twisted pair
going to the remote.
Figure 7. Adding a Repeater to HDSL Circuit
CO Unit Remote
HDSL Unit
Customer
Equipment
or NIU
HDSL Cable Pairs
CA
U
TIO
N:
R
ISK O
FEL
EC
TRI
CAL
SHO
CK.
M
AXIMUM
V
OLTAGESUPTO
-2
00 VDC
M
AY BE
PRESENT O
N
TELECO
M
CIRCU
ITS.
1190851L
2
H
D
SL 8
51 R
E
PE
ATER
/ R
EM
OTE
ES
D
GND
R
P
T
R
.C
.O.
C
A
B
L
EPA
IR
S
RPT
R.TO
R
E
M
OT
E
C
AB
LE
PA
IR
S
LP1 L
P2 L
P1 L
P2
R
EM
OT
E
CA
B
LEPAIRS
D
S
1
LP
1L
P2 L
P
1L
P2
R
PT
R
IN O
U
T
1246041L1
PWR
LP1
LP2
LP1
LP2
LBK

761190851L2-5, Issue 361190851L2-5C
1. Install an HDSL remote line unit in the HDSL
Installation Kit. Make sure the HDSL assistant is
connected to ground, and the ESD wrist strap is
connected to the Installation Kit.
2. Install a test cable to make the following
connections. Be sure to maintain signal polarity
with the test cable.
•Connect the remote LP1 signal jack to the
loop 1 twistedpair.
•Connect the remote LP2 signal jack to the
loop 2 twisted pair.
3. When power is applied to the HDSL circuit, the
HDSL Installation Kit can be used to test remote
line units, or the LP1/LP2 signal jacks can be
used to access the circuit’s loop 1 and loop 2
signals.
T1 BERT Testing of an HDSL Circuit
This section describeshowto perform a T1 Bit Error
Rate Test (BERT) using an HDSL Installation Kit and
a T1 BERT tester (See Figure 9).
With a single HDSL Installation Kit and T1 BERT
tester, a loopback test of the cable span can be
performed from the central office end or from the
remote end.
With COand Remote HDSL Installation Kitsand two
BERT testers, an end-to-end test of the entire cable
spancan be performed. The directions for performing
the BERT test are asfollows.
1. Install test cablesto make the following
connectionsbetween the T1 BERT tester and the
HTU-C installed in the HDSL Installation Kit.
For an end-to-end test, make the connectionsat
both endsof the cable span.
•Connect the BERT tester’s DSX-1 RXjack to
the DS1 line receive jack on the front panel of
the HTU-C or HTU-R
•Connect the BERT testers DSX-1 TXjack to
the DS1 line transmit jack on the front panel
of the HTU-C or HTU-R.
NOTE
As an alternative to the DS1 signal jacks, use the
DS1 RX and TX jacks located just above the line
unit slot on the HDSL Installation Kit. These
jacks correspond to line unit operation, which
means that the BERT tester’s DS1 transmit jack
must be connected to the installation kit’s DS1
TX jack, and the tester’s DS1 receive jack to the
installation kit’s DS1 RXjack.
2. Install a test cable to connect the HDSL
Installation Kit to the HDSL circuit. For an
end-to-end test, make the connections at both
endsof the cable span.
•Connect the HDSL Installation Kit LP1
signal jack to the loop 1 twisted pair.
•Connect the HDSL Installation Kit LP2
signal jack to the loop 2 twisted pair.
3. If a loopback BERT test isbeing performed, loop
backthe far end.
4. Turn ON the HDSL Installation Kit and T1
BERT tester. If an end-to-end test isbeing run,
turn on both Installation Kits and testers.
5. Run a T1 BERT test over the HDSL cable span.
Figure 9. T1 BERT Testing of an HDSL Circuit
Remote/Repeater Shelf
End-to-End BERT
Serving Oce
DS1 Receive
DS1 Transmit
Central Oce Powering Shelf
LP1/LP2
LP1/LP2
Customer
Equipment
HDSL
Circuit
CA
U
T
IO
N:
R
ISK
O
FEL
ECT
R
ICA
L
SH
O
C
K. M
A
XIM
U
M
VOL
T
A
GE
SU
PT
O
-200VD
C
MAYBE
PR
E
SE
NT
O
NT
E
LE
C
OM
CIRCU
IT
S.
1190851L2
HDSL
851 R
E
PE
A
T
ER
/RE
MO
T
E
E
SD
G
ND
R
PT
R.C.O.
CA
BL
EP
A
IR
S
R
PTR
.T
O
R
EM
OT
E
C
A
B
LEP
AIRS
LP1 LP2 LP1 LP2
R
EM
OTE
C
AB
L
E
P
AIRS
D
S1
LP1 LP2 RX TX
RPTR
INO
U
T
T1 BERT
Tester
C
A
U
T
IO
N
:
R
ISK
O
FELE
CTR
IC
A
L
SH
OC
K. M
AX
IM
U
M
V
OL
TA
G
ESU
PT
O
-200V
D
C
M
AYBE
P
RE
SE
N
TON
TE
L
ECO
M
CIR
C
U
ITS.
1190852L
2
H
DSL
852 C
OPOW
E
R
REM
O
TE
LP
1LP
2
DS
1
TX R
X
ESD
GND
DSX-1
LBO
B8ZS
FRM
ESF
NIULBDIS
LBTIMEOUTDIS
533
399
2661330
EXT
1246001L2
LBK
ALM
DSX
DSLTX
RX
TX
RX
M
O
N
E
Q
HTU-CM
AMI
UFRM
SF
EN
EN
12345
T1 BERT
Tester
DS1 Receive
DS1 Transmit
Serving Oce
T1 BERT
Tester
DS1 Receive
DS1 Transmit
Central Oce Powering Shelf
Loopback BERT
LP1/LP2 Signals
HDSL
Circuit
C
A
U
T
ION
:
R
ISK
OFEL
E
CT
RICA
L
SH
OC
K
.M
A
X
IMU
M
V
OL
T
AG
ESUP
TO
-200V
DC
M
A
YBE
PR
ESE
N
T
ON
T
EL
E
COM
C
IR
CU
ITS.
1190852L
2
HD
SL852CO
PO
WE
R
RE
M
OTE
L
P1 LP
2
DS1
TX RX
ES
D
G
N
D
DSX-1
LBO
B8ZS
FRM
ESF
NIULBDIS
LBTIMEOUTDIS
533
399
2661330
EXT
1246001L2
LBK
ALM
DSX
DSLTX
RX
TX
RX
M
O
N
E
Q
HTU-CM
AMI
UFRM
SF
EN
EN
12345
Remote End
Loopback

C5-2L158091163eussI,5-2L158091168
4. SPECIFICATIONS
Refer to Table 2 for HDSL Remote Installation Kit
specifications.
Figure 10shows the 851 Remote Shelf with adapter
insert partially installed.
Supporting Products and Replacement Parts
Table 3providesa list of supporting productsand
replacement parts that can be ordered for the
Installation Kit products.
Table 3. Ordering Guide for the 851
Remote Shelf
Figure 10. Adapter Insert Installation
CAUTION:
RI SK OF ELECTRICAL
SHOCK. MA
XI MUM
VOLTAGES UP T O
-200 VDC MAY BE
PRESENT ON TELECOM
CIRCUITS
.
1190851L2
HDSL 851 REPEATER/REMOTE
ESD
GND
RPTR. C.O
.
CABLE PAIR
S
RPTR. TO
REMOTE
CABLE PAIR
S
LP1 LP2 LP1 LP2
REMOTE
CABLE PAIR
S
DS1
LP1 LP2 LP1 LP2
RPTR
IN OUT
Table 4. Ordering Guide for the 852 CO Shelf
Table 4providesa list of productsfor the CO
Installation Kit.
Table 2. Specifications
rewoP
:egatloV
:spmA
cdV84-
A2.0
latnemnorivnE
:erutarepmetgnitarepO
:erutarepmetegarotS
C°05+ot°0
)F°221+ot°23+(
C°07+ot°04-
)F°851+ot°04-(
lacisyhP
:noisnemiD
:thgieW
5,hgih"2/17,peed"2/16
ediw"2/1
bl0.4
noitpircse rD ebmuNtraP
flehStseTetomeR/retaepeR15 28 L1580911
*934/932ot004T,retpad 2A 2L1580911
*draCsseccAtseT004T/002 1T L5604421
desahcrupyletarapeS*
noitpircse rD ebmuNtraP
flehStseTOC25 28 L2580911
*2913ot022E,retpad 2A 2L2580911
*+MDDot022E,retpad 3A 2L2580911
*xelpenoSot022E,retpad 4A 2L2580911
desahcruPyletarapeS*

961190851L2-5, Issue 361190851L2-5C
5. MAINTENANCE
The HDSL Remote Installation Kit doesnot require
routine maintenance for normal operation.ADTRAN
doesnot recommend that repairsbe performed in the
field. Repair servicesare obtained by returning the
defective unit to ADTRAN Customer and Product
Service.
6. WARRANTY AND CUSTOMER SERVICE
Contact Customer and Product Service (CAPS) prior
to returning equipment to ADTRAN.
For service, CAPS requests, or further information,
contact one of the following numbers:
ADTRAN Sales
Pricing/Availability
[phone]
ADTRAN Technical Support
Pre-sales Applications/Post-sales Technical Assistance
[phone]
Standard hours: Monday-Friday, 7 a.m. - 7 p.m. CST
Emergency hours: 7 days/week, 24 hours/day
ADTRAN Repair/CAPS
Return for Repair/Upgrade
[phone]
Repair and Return Address
Contact CAPS prior to returning equipment to ADTRAN.
ADTRAN, Inc.
CAPS Department
901 ExplorerBoulevard
Huntsville, Alabama 35806-2807
ADTRAN will replace or repair our products within
the warranty period if they do not meet their published
specifications or fail while in service. Warranty
information can be found at www.adtran.com/warranty.
Email: [email protected]
Web: http://www.adtran.com/getsupport

C5-2L158091163eussI,5-2L1580911601