HiGain
HiGain
FCC Class A Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Limited Warranty
Product warranty is determined by your service agreement. Contact your sales representative or
Customer Service for details.
Modifications
Any changes or modifications made to this device that are not expressly approved by ADC DSL
Systems, Inc. voids the user's warranty.
All wiring external to the products should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been tested and verified to comply with the applicable sections of the following
safety standards:
GR 63-CORE - Network Equipment-Building System (NEBS) Requirements
GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety
Binational standard, UL-1950/CSA-C22.2 No. 950-95: Safety of Information Technology
Equipment
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. HiGain is a registered trademark of
ADC DSL Systems, Inc. Other product names mentioned in this installation guide are used for
identification purposes only and may be trademarks or registered trademarks of their respective
companies.
Copyright Information
© 2002 ADC DSL Systems, Inc. All rights reserved. Information contained in this document is company
private to ADC DSL Systems, Inc., and shall not be modified, used, copied, reproduced or disclosed in
whole or in part without the written consent of ADC.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: 714.832.9922
Fax: 714.832.9924
Technical Assistance
Tel: 800.638.0031
Tel: 714.730.3222
Fax: 714.730.2400
DNV Certification, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
T
HE
HLU-231 L
IST
8F
The HiGain
®
Lin
e Unit HLU-23
1 List 8F is
the
Centra
l Office (CO)
side of
a
repeat
erless
T1
tran
smissi
on
syst
em. W
hen
used i
n con
jun
ction
with
a Hi
Gain
Remo
te
Unit (
HR
U),
th
e s
yst
em p
rov
ides 1.
544 M
bp
s tr
an
smissi
on
on two
uncon
dit
ione
d
coppe
r p
air
s over t
he ful
l Carri
er Servi
ce Area (
CS
A) ran
ge.
Th
e CSA
in
clud
es lo
op
s
up
to 12,0
00 f
eet
of 24
A
mer
ican
W
ire
G
aug
e (
AWG
) or
9,00
0 feet
o
f 2
6 A
WG
w
ire
,
incl
udin
g brid
ged
taps.
This lin
e un
it ca
n be
use
d i
n a
ppli
catio
ns
with or
withou
t
HiGain Do
uble
r Unit
s (HDUs
).
F
EATUR
ES
S
PE
CIFIC
ATIONS
•
Fron
t pa
nel s
tat
us LED
, cra
ft port
, a
nd
four
-chara
cte
r st
atus
d
isp
lay
•
Pay
loa
d (P
L) or
HiGa
in
(H
G) l
oop
bac
k s
our
ce
iden
tifica
tio
n
•
Ultr
a-lo
w wand
er
•
Reduc
ed p
owe
r co
nsum
ptio
n
•
Five
-span
ra
ng
e wit
h f
our dou
bler
s
(60 kf
t, 24 AWG
)
•
Lo
w lin
e-pow
er o
pti
on (
-140
V) f
or
cir
cui
ts
wit
h a
singl
e d
ouble
r
•
Sel
ect
able
Po
wer
Fe
ed
mode
s
•
Bit E
rror R
ate
(BER
) a
larm
op
tion
s
•
Lo
ss of
S
ign
al (LO
S)/
Alarm
Indi
cato
r
Sign
al (AI
S)
pay
loa
d alar
m o
pti
on
•
Ad
diti
onal
scre
ens fo
r in
vent
ory a
nd
trou
bles
hoot
in
g
•
Suppo
rts P
uls
eco
m H
DS
L 62/
64 a
pplic
ati
ons
•
Grou
nded l
oop d
ete
cti
on
•
Bipola
r Violation Tr
an
sp
are
ncy
(BPVT)
op
tio
n
•
B8ZS de
faul
t l
in
e code
optio
n
•
Unfr
amed
(UNF
R) d
efa
ult
fram
ing
opti
on
Opera
ting Te
mpera
tu
re
-40 °
F t
o +
149 °
F (-40
°C t
o +65
°C)
Opera
ting H
um
id
ity
5% t
o 95
% non
-co
nden
sin
g
HD
SL Sp
an Vol
ta
ge
-140
to
±112 Vdc
Moun
ting
220
mech
anic
s h
ig
h-d
ensi
ty sh
elf
HD
SL L
ine
Code
784 k
bps 2
B1Q
HDS
L Ou
tput
+13.
5 dBm ±0.
5 dB at 13
5
Ω
Ma
xim
um
Provis
ioni
ng Loss
35
dB at 1
96 KHz,
135
Ω
DS
1 Lin
e Ra
te
1.5
44 Mbps
±200 bps
DS
1 Lin
e For
ma
t
Alte
rn
ate
Mark In
vers
ion
(A
MI) o
r B
ip
ola
r wi
th 8
-Z
ero
Su
bst
itu
tio
n
(B
8ZS)
DS
1 Frame
F
orm
at
Ext
en
ded
SuperF
rame (ESF
), Su
perFra
me (SF
) or U
nfr
amed
(UN
FR
)
DSX-1 Pul
se
O
utput
6 V
pk-p
k
, pre
-eq
ualize
d fo
r 0
to
655
fee
t o
f ABAM
cab
le
DSX-1 I
nput
Level
+1
.5
to
-7
.5 d
B D
SX
I
NSTALLATI
ON
To e
nsu
re pro
per
install
ati
on o
f th
e HLU, a
lign
the
HL
U with th
e e
ncl
osu
re slo
t g
uid
es
an
d slid
e th
e un
it in
. Wh
en
the HLU is
prop
erly
seat
ed
, th
e re
tain
ing la
tch
snap
s
clo
sed.
P
OWE
R
-
UP
S
EQUENCE
When
th
e HLU
powe
rs up
, th
e fou
r-cha
ract
er d
ispla
y illu
mina
tes a
nd re
po
rts
status
messag
es.
If th
e HLU i
s no
t co
mm
un
icatin
g with
the n
ext
span
de
vic
e, th
e foll
owing
occu
rs:
1
Alarm
and
diagn
ost
ic
message
s d
ispl
ay
(see t
he F
ron
t P
ane
l Al
arm Me
ssages a
nd
Fron
t P
ane
l Di
agno
stic
M
ess
ages
tab
les i
nsi
de),
foll
ow
ed by
th
e SE
LF
TE
ST
messag
e.
2
The Sta
tu
s LED
turns y
ell
ow, ind
ica
ting i
t h
as
en
tere
d self-te
st
mo
de.
If th
e HLU i
s co
mmuni
cati
ng
with
th
e next
span
devi
ce, t
he fol
lo
win
g oc
curs:
1
Th
e Stat
us LE
D fl
ashes g
reen wh
ile
ac
quir
in
g each de
vice i
n t
he
syst
em, an
d
tu
rns a st
eady
green when
th
e enti
re syst
em is op
eratin
g wi
th
ou
t an
y alarms.
2
The fo
ur-ch
aracter d
isp
lay rep
orts marg
in (sig
nal-t
o-n
oise ratio
) readin
gs an
d
inse
rtion
loss.
3
If the s
tat
us LED is n
ot s
olid
green
, the
displa
y re
ports a
lar
m c
on
ditio
ns (see t
he
Fron
t Pane
l Alar
m M
essa
ges tab
le in
side)
.
P
ROVI
SION
ING
1
Access th
e M
ain
tenance T
ermi
nal
screen
s by pres
sing t
he
sev
era
l ti
mes
.
a
Set
th
e date
an
d tim
e (selec
t Se
t Clo
ck
from
the
Main
ten
anc
e Te
rmin
al
Main
Men
u).
b
Set
th
e circui
t IDs (sel
ect Vi
ew Sy
stem I
nv
en
to
ry
from
th
e Ma
inte
nan
ce
Term
inal Ma
in Me
nu
).
2
Acce
ss the Sy
stem
Se
ttings sc
reen
from
the Ma
inte
nan
ce T
erm
inal
Main
Men
u
to c
han
ge th
e de
fau
lt settin
gs of a
ny
sy
stem
para
met
ers.
3
Access t
he Vi
ew Trou
blesh
oo
tin
g screen from
th
e Main
tenan
ce Termi
nal
M
ain
Menu
to
view
a grap
hica
l an
alys
is o
f a
ny
po
ten
tia
l sy
stem
prob
lem
s.
4
Wh
en t
he HL
U h
as b
een succe
ssfully
in
sta
lle
d and
p
rov
isi
oned,
clear S
pan
Statu
s, P
erf
orm
anc
e D
ata
, Per
fo
rm
ance
His
tor
y, an
d A
lar
m H
ist
ory
scr
een
s to
ensure
ac
curate
d
ata
and al
arm repo
rtin
g t
hereaft
er.
Conti
nued
SPACE
BAR
Þ
L
8F
DSX-1
H
I
G
AIN
HLU 231
HLU-231 L
IST
8F
L
INE
U
NIT
Q
UICK
I
NSTALLATION
´,2<¶1!¨
1218281
June 29, 2000
Product Catalog: HLU-231-L8F
CLEI: T1L4JWLB
Document: 350-231-186-02, Issue 2
