T
HE
H2TU-C-319 L
IST
7
The H2TU-C-319 List 7 line unit is the Central Office (CO) side of a T1 transmission
system. The H2TU-C, when used with an H2TU-R remote unit, transmits a
1.544 Mbps payload on one unconditioned copper pair over the full Carrier Service
Area (CSA) range. The H2TU-C-319 List 7 is designed to mount in 3192
mechanics shelves.
F
EATURES
S
PECIFICATIONS
The H2TU-C-319 List 7 complies with the protection
switching features of the PSC-606 List 1 protection switching
card as detailed in document number LTPH-TP-1006-xx.
Front-panel features: craft port for maintenance
screen access, display panel for system status
reporting, status LED, and DSX-1 access jacks
HDSL2 transmission features:
•
Full-duplex transmission on one copper pair
•
Grounded loop detection on HDSL2 span
•
Souces sealing current
Maintenance screens for inventory, provisioning,
performance monitoring, and troubleshooting,
including:
•
Remote provisioning
•
Loop attenuation and insertion loss reporting
•
Bit Error Rate Tester (BERT)
•
Loss of Signal / Alarm Indication Signal
(LOS/AIS) payload alarm option
•
Power Back Off (PBON and PBOC) for
configuring HDSL2 transmit power levels to
reduce crosstalk
•
Report menu option for downloading status and
performance data
•
DS1 and HDSL2 alarm histories
•
Detection of tip and ring reversal
Operating Temperature
-40°F to +149°F (-40°C to +65°C)
Operating Humidity
5% to 95% non-condensing
HDSL2 Span Voltage
0 or -180 Vdc ±5 Vdc
CO Supply
-48 Vdc nominal (-42.5 Vdc to -56.5 Vdc)
Mounting
3192 mechanics shelves
HDSL2 Line Rate
1.552 Mbps Overlapped Pulse Amplitude Modulation Transmission with
Interlocking Spectra (OPTIS)
HDSL2 Output
+16.8 dBm ±0.5 dBm, 135
Ω
at CO side
+16.5 dBm ±0.5 dBm, 135
Ω
at remote side
Maximum Insertion Loss
35 dB @ 196 kHz; 135
Ω
Maximum Loop Attenuation
28 dB
DSX-1 Line Rate
1.544 Mbps ±200 bps
DSX-1 Line Format
Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution (B8ZS)
DSX-1 Frame Format
Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
DSX-1 Pulse Output
6 V
pk-pk
, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level
+1.5 dB to -7.5 dB DSX
I
NSTALLATION
Align the H2TU-C with the shelf card-slot guides and slide the unit in. Push on the
H2TU-C front panel to snap the unit into place.
P
OWER
-U
P
S
EQUENCE
When the H2TU-C powers up, the four-character display illuminates and displays
status messages.
If the H2TU-C is unable to communicate with the H2TU-R, it displays various alarm
and status messages. If the H2TU-C is able to communicate with the H2TU-R, the
following occurs:
•
The Status LED flashes red while acquiring the H2TU-R and then turns a steady
green when the entire system is operating with no alarms. (The DS1 signal must
be present.)
•
The front-panel display reports signal-to-noise ratio (SNR) margin readings
(should be
≥
6 dB) and loop attenuation (should be < 28 dB).
After the system powers up, existing alarm conditions are reported on the display.
(The H2TU-C reports alarms if no DS1 signal is applied.)
P
ROVISIONING
Perform these basic provisioning tasks:
1
Connect a maintenance terminal to the craft port (see front-panel illustration
inside) and log on. (If logging on through the management unit, the default
password is public.) Press
+
to refresh the logon screen, if necessary.
Refer to the onscreen Help menu for navigational aids or use the
(to
cycle through selections),
(to activate the current setting or selection, or
to display a menu),
or
(
to return to the parent menu), or directional
arrow keys (to navigate to a menu or item).
2
Select Config, Date and Time, then type the date and time.
3
Select Inventory, then type the circuit ID, H2TU-R ID and circuit notes.
4
Change the settings of any system parameters, if necessary, by selecting Config,
then Standard Options or ADC Options. (Configuration options can also be set
from the front panel using the MODE and SEL pushbuttons. See
Table 2
inside.)
Once the H2TU-C is successfully installed and provisioned, access the Monitor,
Performance, or Event Log menus to clear the Performance, Alarm History, or Event
Log screens, or use Master Clear in the Config menu.
Continued
CTRL
R
SPACEBAR
ENTER
ESC
F11
Þ
H
I
G
AIN
H2TU-C-319
L
IST
7
L
INE
U
NIT
Q
UICK
I
NSTALLATION
FCC Cl
ass A Com
pli
ance
Th
is e
quipm
en
t has be
en
te
ste
d a
nd found
to co
mply wi
th the limi
ts for
a C
las
s A di
gital d
ev
ice
, pu
rsua
nt to
Par
t 15
of t
he
FC
C R
ule
s. T
hes
e li
mits a
re
de
signe
d to provide
re
asona
ble prot
ecti
on ag
ains
t harm
ful
in
ter
fer
en
ce
when th
e equipm
ent i
s op
erat
ed in
a com
mer
cia
l envi
ronm
ent.
Th
is
equipm
ent g
en
era
tes
, u
ses,
and can r
ad
iat
e ra
dio
fre
quency ener
gy and, i
f no
t i
nst
alle
d and used i
n accor
dance
with
th
e in
str
uct
io
n
manu
al,
may caus
e harm
fu
l in
terfe
rence
to radi
o co
mm
unications.
Op
eration of
this equipment
in a
res
ide
ntia
l are
a is
likel
y to cau
se ha
rmfu
l in
terfe
re
nce
in which c
ase
the us
er wi
ll be r
eq
uire
d t
o c
orr
ect
the
inter
fer
en
ce at
his
own expense.
Lim
ited
Wa
rran
ty
Product
warra
nty i
s deter
mined b
y yo
ur s
erv
ice agreement
. C
ontact your s
ale
s r
epr
esentative or
Cu
stomer
Ser
vic
e f
or
deta
ils.
Mo
dific
ati
ons
Any changes
or m
odific
ati
ons made
to this
dev
ice
that ar
e not ex
pres
sly
appr
oved b
y ADC
DSL S
yst
em
s,
In
c. voids
th
e user
's
warra
nty.
All wir
ing exter
nal to the pr
oducts s
ho
uld f
ollo
w th
e pr
ov
isions
of
th
e cur
rent
edition of
the National
Elect
rical
Code.
Stan
da
rds Co
mp
lian
ce
Th
is e
quipm
en
t ha
s be
en
test
ed
and
verif
ied
to
co
mply wi
th th
e a
pplicab
le s
ect
ions
of
the f
ollow
ing s
afe
ty
standar
ds:
❑
GR 63-
CO
RE
- Networ
k Equip
ment-
Bu
ilding
System
(N
EB
S) R
equir
ements
❑
GR 1089-
CO
RE
- E
lec
tro
magne
tic C
ompa
tibility
and E
lec
tri
cal
Saf
ety
❑
Binati
onal standar
d, UL
-1950
/CSA C
22.2 No.
950-95:
Sa
fety of
In
fo
rm
ation Technology
Eq
uipment.
Trad
emark In
form
atio
n
ADC is
a r
egis
ter
ed trademar
k o
f A
DC
Tel
ecom
municat
ions
, I
nc.
Other pr
oduct na
mes ment
ioned in t
his
in
stal
lat
ion g
uid
e are
used
fo
r i
dent
ifi
catio
n purpose
s o
nly
and m
ay b
e t
radem
arks or
re
gist
ered
tradem
arks
of th
eir
resp
ect
iv
e c
om
pan
ies.
Copyri
ght Inf
orm
ati
on
© 2002
ADC DSL
S
yst
ems,
In
c. All r
ig
hts
re
ser
ved.
In
fo
rm
ation cont
ained in
thi
s document
is
co
mpany
priv
ate
to
ADC DS
L S
yst
ems,
In
c., and
shall not
be modif
ied,
used,
copied, r
ep
roduced or
disclos
ed
in
whole
or in
part
without
the wr
itten
cons
en
t of
ADC.
ADC DS
L Syst
ems, I
nc.
14402 F
rankli
n Avenu
e
Tu
stin,
CA
92780-
7013
Te
l: 714.8
32.9
922
Fax
: 71
4.832
.992
4
Tech
nical
Assistan
ce
Te
l: 800.6
38.0
031
Te
l: 714.7
30.3
222
Fax
: 71
4.730
.240
0
´,NM¶
6>¨
1246456
September
27,
2002
Produ
ct C
atalog:
H2TU
-C
-319-
L7
CLE
I: VACJ
KU7E
Document: LT
PH
-Q
I-1184-
01
