Corporate Office:
14402 Franklin Avenue
Tustin, CA 92780
Tel: 714.832.9922
FAX: 714.832.9924
For Technical Assistance:
800.638.0031
Product Number: 150-1141-51
HLU-388
List 5A Line Unit
Quick
Installation Guide
H G
I
AIN
5A
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
PairGain Technologies warrants this product to be free of defects and to be fully functional for a period of
60 months from the date of original shipment, given correct customer installation and regular maintenance.
PairGain will repair or replace at PairGain’s option any unit without cost during this period if the unit is found
to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. If it fails, replace it with another unit and return the faulty unit to PairGain for
repair. Any modifications of the unit by anyone other than an authorized PairGain representative voids the
warranty.
If a unit needs repair, call PairGain for a Return Material Authorization (RMA) number and return the defective
unit, freight prepaid, along with a brief description of the problem.
PairGain continues to repair faulty modules beyond the warranty program at a nominal charge. Contact your
PairGain sales representative for details and pricing.
Modifications
Any changes or modifications made to this device that are not expressly approved by PairGain Technologies,
Inc. may void 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
The HLU-388 List 5A has been tested and verified to comply with the applicable sections of the following
standards.
GR 63-CORE - Network Equipment-Building System (NEBS) Requirements: Physical Protection
GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety
Trademark Information
PairGain and HiGain are registered trademarks of PairGain Technologies, Inc. All 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
© Copyright 1999 PairGain Technologies, Inc.
Information contained in this document is company private to PairGain Technologies, Inc., and shall not be
modified, used, copied, reproduced or disclosed in whole or in part without the written consent of PairGain.
T
HE
HLU-388 L
IST
5A
The Pa
irGain
®
HiGain
®
Line Un
it HLU-388
List 5A
is
the
Central Office
(CO) sid
e
of a repeat
erless
, T
1 t
ransm
issi
on sy
stem.
Wh
en u
sed
in
co
nju
nct
io
n with
a HiGai
n
Remo
te Uni
t (
HR
U),
th
e syst
em pro
vid
es 1.54
4 Mbps
tr
ansmi
ssi
on on
tw
o
un
co
nditio
ned
co
pp
er p
air
s over
the
full Ca
rrie
r Se
rvice
Area (CSA)
ran
ge.
The C
SA
incl
udes
loo
ps up
to 1
2,0
00
fee
t of
24
(A
mer
ica
n Wir
e G
aug
e) A
WG
or 9,
000 f
eet
of
26
AWG wire
, in
clu
din
g brid
ged
tap
s. Th
is line u
nit
can
be
used
in
ap
plic
ati
on
s with
or withou
t HiGain Doub
ler Unit
s (HDUs).
F
EATUR
ES
S
PE
CIFIC
ATIONS
•
Fron
t pa
nel s
tat
us LED
, f
ou
r-cha
racte
r st
atus
disp
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 line-po
wer op
tion
(-140
Vdc) f
or c
ircu
its
wit
h a
singl
e d
ouble
r
•
Sel
ect
able
pow
er
fee
d mod
es
•
Bit E
rror R
ate
(BER
) a
larm
op
tion
s
•
Lo
ss of
S
ign
al (LO
S)/
Alarm
Indi
cato
r Sig
nal
(AIS
) payl
oad a
lar
m opt
io
n
•
Bipola
r Violation Tr
an
sp
are
ncy
(BPVT)
opti
ons
•
Ad
diti
onal
scre
ens fo
r in
vent
ory a
nd
trou
bles
hooti
ng
•
Grou
nded l
oop d
ete
cti
on
Op
erat
in
g T
em
pe
rat
ure
-40 °
F t
o 14
9 °F (-40
°C
to
+6
5°C)
Ope
ra
tin
g Hu
midit
y
5%
to
9
5% no
n-cond
ensi
ng
HD
SL Span
Vo
ltage
-140 or
±
112 Vdc
Mou
nti
ng
DD
M+ hi
gh-den
sit
y shel
f
HD
SL Li
ne Code
784 kb
ps 2
B1Q
HD
SL Ou
tp
ut
+13.
5 dBm ±0.
5 dB, 135
Ω
Maxi
mum
Pro
vis
ion
in
g L
oss
35
dB at 1
96 kH
z, 1
35
Ω
DS
1 Line R
ate
1.5
44 Mbps
±200
bp
s
DS
1 Line Fo
rmat
Altern
ate M
ark I
nve
rsion (AM
I),
Bipolar wit
h
8-Z
ero
Su
bsti
tutio
n (
B8
ZS
),
or
Zer
o B
yte
Time
Slot I
nte
rch
an
ge (Z
BTSI)
DS
1 Fram
e Forma
t
Ext
en
ded
Supe
rFram
e (
ESF
), Sup
erF
ram
e (SF
),
or Un
frame
d (
UNFR)
DSX-1
Puls
e O
utp
ut
6 V
pk-p
k
, pr
e-eq
ual
ized
fo
r 0 to
655
fee
t o
f AB
AM
cabl
e
DSX-1
Inpu
t Lev
el
+1
.5 t
o -
7.5
d
B DSX
I
NSTALLATI
ON
To e
nsu
re pro
per
installa
tion
of th
e HLU-38
8 List 5
A:
1
Lift u
p th
e e
nti
re fro
nt pan
el
an
d align
the HLU-38
8 List 5A
with
the s
hel
f rail
s.
2
Slide
th
e u
nit in a
nd
pre
ss th
e fro
nt pane
l down to s
ecu
re.
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 f
la
shes
red
while
acqui
ring
each dev
ice
in
th
e syst
em, and
tu
rns
a stead
y gre
en wh
en th
e e
nti
re syst
em i
s o
perat
in
g with
out
any al
arm
s.
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
Acc
ess
th
e M
ain
ten
an
ce T
erm
in
al screens
by pressi
ng
several
times.
a
Set
the d
ate
an
d tim
e (se
lec
t Se
t Cloc
k from
th
e M
ain
Men
u).
b
Set
th
e circui
t IDs (sel
ect Vi
ew Sy
stem In
ventory).
2
Acce
ss the Sy
stem
s Settin
gs sele
ctio
n on
the
Main
Menu
to c
han
ge t
he d
efa
ult
settin
gs of a
ny sy
stem
pa
ram
ete
rs.
3
Access t
he Vi
ew Trou
blesh
oo
tin
g screen t
o vi
ew a
g
raph
ical
analy
sis
of any
po
ten
tial sy
ste
m p
rob
lem
s.
4
Wh
en t
he HL
U is
succe
ssfully
in
stal
led
and p
rov
isi
oned,
clear S
pan
S
tat
us,
Performa
nce
Da
ta, Perfo
rman
ce Hist
ory
, an
d Alarm Histo
ry
screen
s to
en
sure
accurat
e d
ata
and al
arm repo
rting.
Conti
nued
SPACE
BAR
Þ
Section Number: 350-388-151-02
December 7, 1999