HiGain
USER MANUAL
EDU-409
HiGain
DOUBLER
L
EDU-409 List 1 Doubler Unit
Product Catalog: 150-409-115-05
STATUS
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150-409-115-05, Issue 5
Using This Manual
USING THIS MANUAL
The following conventions are used in this manual:
•
•
Monospace type indicates screen text.
Keys you press are indicated by small icons such as Y or ENTER . Key
combinations to be pressed simultaneously are indicated with a plus sign
as follows: CTRL + ESC .
•
Items you select are in bold.
Three types of messages, identified by icons, appear in text.
Notes contain information about special circumstances.
Cautions indicate the possibility of personal injury or
equipment damage.
The Electrostatic Discharge (ESD) symbol indicates that a
device or assembly is susceptible to damage from electrostatic
discharge.
For a list of abbreviations used in this document, refer to “Glossary” on
page 25.
UNPACK AND INSPECT YOUR SHIPMENT
Upon receipt of the equipment:
•
Unpack each container and inspect the contents for signs of damage. If
the equipment has been damaged in transit, immediately report the extent
of damage to the transportation company and to ADC DSL Systems, Inc.
Order replacement equipment, if necessary.
•
Check the packing list to ensure complete and accurate shipment of each
listed item. If the shipment is short or irregular, contact ADC DSL
Systems, Inc. as described in “Product Support” on page 23. If you must
store the equipment for a prolonged period, store the equipment in its
original container.
EDU-409 List 1
January 26, 2000
iii
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Unpack and Inspect Your Shipment
150-409-115-05, Issue 5
iv
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EDU-409 List 1
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150-409-115-05, Issue 5
Overview _______________________________________________ 1
Installation _____________________________________________ 7
Alarms _________________________________________________ 9
Functional Description___________________________________ 11
Ground Faults__________________________________________ 19
Technical Specifications__________________________________ 21
Product Support ________________________________________ 23
Abbreviations __________________________________________ 24
Glossary_______________________________________________ 25
Certification and Warranty__________________Inside Back Cover
EDU-409 List 1
January 26, 2000
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List of Figures
150-409-115-05, Issue 5
LIST OF FIGURES
1. EDU-409 List 1 Front Panel..................................................................6
2. Installing the EDU-409 List 1 in a Remote Enclosure..........................8
3. HiGain Loopbacks...............................................................................10
LIST OF TABLES
3. Front Panel Components and Labels.....................................................6
4. Front Panel Status Indicator ..................................................................9
5. Indoor Enclosure Capacities................................................................13
6. Outdoor Enclosure Capacities with Full Solar Load...........................14
7. Fault Isolation Guide...........................................................................20
vi
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EDU-409 List 1
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150-409-115-05, Issue 5
Overview
OVERVIEW
The HiGain® EDU-409 List 1 List 1 is a low-power doubler unit that extends
the range of a HiGain repeaterless G.703 transmission system. The doubler
units are installed between any doubler-compatible HiGain E1 Line Unit
(ELU) and HiGain E1 Doubler (EDU) or HiGain E1 Remote Unit (ERU).
They allow 2.048 Mbps transmission over twice the normal High Capacity
Digital Service (HCDS) range.
Adding a doubler can double the HCDS range to approximately 7.32 km
(24,000 feet) of 0.51-mm wire or 5.49 km (18,000 feet) of 0.4-mm wire loops.
Two doublers can triple the HCDS range to 10.97 km (36,000 feet) of
0.51-mm wire or to 8.22 km (27,000 feet) of 0.4-mm wire loops. Three
doublers extend the 0.51-mm wire range to 14.6 km (48,000 feet).
FEATURES
The EDU-409 List 1 includes:
•
•
•
•
Occupation of one standard 239 T1 mechanics slot
Power by any doubler-compatible HiGain line unit
Front-panel status display LED
Lightning and power-cross protection on both sides of the High bit-rate
Digital Subscriber Line (HDSL) interface
•
•
•
•
Extremely low power dissipation
Extremely low latency
Compatibility with a 4-span line-powered circuit
Minimal wander and jitter
EDU-409 List 1
January 26, 2000
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Overview
150-409-115-05, Issue 5
APPLICATIONS
HiGain doublers operate with any number of T1, Plain Old Telephone
Service (POTS), Digital Data Service (DDS), or other HiGain systems
sharing the same cable binder group.
The EDU-409 List 1 has a range of up to 35 dB loss at 260 kHz on each of
the four HDSL loops. A list of HDSL signal cable losses for various cable
gauges at 260 kHz and 135 Ω is provided in Table 1. The table is applicable
to HDSL cable pairs running between the ELU and the EDU-409 List 1 and
between the EDU-409 List 1 and another EDU or ERU.
Table 1. HDSL Signal Cable Loss
Loss @ 260 kHz
Cable Gauge
Ω per km
(dB/km)(a)
0.4 mm/26 AWG
0.51 mm/24 AWG
0.61 mm/22 AWG
0.91 mm/19 AWG
13.94
10.47
8.14
272
171
105
52
5.74
(a) Add 3 dB for each bridged tap and 1 dB for each cable gauge change.
The EDU-409 List 1 can be used in two-span to four-span circuits, depending
on the models of the ELU and ERU being used with the doubler units and the
power option chosen for the ERU. The number of doublers is equal to one less
than the number of Spans (as shown in Figure 3 on page 10).
2
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EDU-409 List 1
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150-409-115-05, Issue 5
Overview
Table 2 lists the maximum number of EDU-409 List 1 doubler units that can
be deployed as a function of the ELU and ERU that are used with it.
Table 2. EDU-409 List 1 Circuit Ranges
Maximum Number of EDU-409 List 1 Doublers Per
Circuit
ELU Model
Local Powered Remote(a)
Line Powered Remote
ELU-319 List 5D
ELU-319 List 6D
1
2
3(b)
ELU-319 List 5E
ELU-319 List 6E
2
(a) Requires ERU-412 List 1D and List 2D. ERU-412 List 1E and 2E do not support
local power.
(b) Requires ERU-412 List 1E and 2E
Each span can take up to 30 seconds to acquire HDSL
synchronization. The total time to acquire end-to-end
synchronization increases with the number of spans.
EDU-409 List 1
January 26, 2000
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Overview
150-409-115-05, Issue 5
The physical location of the doublers is driven by the following three
deployment rules:
1
Place the enclosures at the electrical limits, 35 dB, of each span. This
places the first doubler at the 35 dB location, the second at 70 dB, and so
on, allowing the maximum circuit range to be realized.
Caution must be observed when pushing doubler spans to
their 35 dB maximum range. Refer to ADC’s Technical
Advisory #TA-015 on HiGain operating ranges and general
deployment guidelines.
2
3
If Rule 1 is not applicable, then try to make all spans the same electrical
length (same 260 kHz loss). This minimizes the maximum span loss and
assures maximum operating margin, resulting in optimal transmission
performance on the HDSL cable pairs. If specific application constraints
preclude using Rule 2, or if two different circuit layout choices have the
same maximum span loss, then use Rule 3.
If Rules 1 and 2 are not applicable, make the spans closer to the ELU as
short as possible while making the spans farther from the ELU as long as
possible. This choice minimizes the I2R loss in the cable pairs, and
reduces the thermal stress on the ELU. Following this rule minimizes the
power consumption and dissipation of the ELU that provides the doubler
power.
Only those ERUs that have a local powering option can be
used in local ERU-powered applications.
4
January 26, 2000
EDU-409 List 1
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150-409-115-05, Issue 5
Product Description
PRODUCT DESCRIPTION
The EDU-409 List 1 List 1 includes:
•
•
An open-framed cover
A front panel featuring:
–
–
Status display
Configuration number
COVER
The open-framed cover reduces thermal stress and improves reliability
allowing air to freely circulate over all components. The open cover also
permits the doubler to be easily distinguished from the 239 T1 repeater.
EDU-409 List 1
January 26, 2000
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Product Description
150-409-115-05, Issue 5
FRONT PANEL
Figure 1 shows the front panel of the EDU-409 List 1, and Table 3 describes
the doubler unit components.
EDU-409
HiGain
DOUBLER
L
Status LED
STATUS
Configuration
number label
(located on side)
Figure 1. EDU-409 List 1 Front Panel
Table 3. Front Panel Components and Labels
Name
Function
Status LED
Indicates operational status of doubler. See Table 4 on page 9.
Configuration
number
Contains either a five-digit or six-digit warranty configuration number or
a standalone two or three-digit configuration number as follows:
Digit 1 = Last digit of shipment year
Digits 2 and 3 = Shipment month
Digits 4 and 5 = Configuration number
The configuration number can also be found on a small bar label that also
contains the Julian date code and part number. This gummed label may
be attached to the PC board or to the front panel.
6
January 26, 2000
EDU-409 List 1
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150-409-115-05, Issue 5
Installation
INSTALLATION
This section describes the compatibility and installation for the EDU-409
List 1.
COMPATIBILITY
The EDU-409 List 1 is compatible with the following ADC outdoor
enclosures:
•
•
•
HRE-500, single-slot unit
HRE-458, 10-slot unit
HRE-819, 12-slot unit
INSTALLING THE EDU-409 LIST 1
To install the EDU-409 List 1 in an enclosure, perform the following steps
and refer to the enclosure installation manual for information about cabling,
proper connections, grounding, and line and local power.
This product incorporates static sensitive components.
Proper electrostatic discharge procedures must be followed.
To install the doubler unit, slide the doubler unit into the card guides for the
desired slot (see Figure 2 on page 8). Then push the unit into the enclosure
until it is seated in the card-edge connector. The unit should snap into place,
indicating that it is properly seated.
EDU-409 List 1
January 26, 2000
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Installation
150-409-115-05, Issue 5
Figure 2. Installing the EDU-409 List 1 in a Remote Enclosure
Some enclosures may require you to adjust the retaining bar
located on the front of the enclosure to secure the unit. Refer
to the appropriate ADC user manual for the enclosure.
Once the EDU-409 List 1 is installed in the enclosure, the front panel Status
LED flashes green if power is applied from an upstream line unit. When the
loops on both sides of the EDU synchronize, the LED constantly glows solid
green. Refer to the section titled “Alarms” on page 9 for more details on LED
operation.
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EDU-409 List 1
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150-409-115-05, Issue 5
Alarms
ALARMS
The front panel of the EDU-409 List 1 contains a tri-color LED. The LED
color and activity provides information on system functionality (see Table 4).
Table 4. Front Panel Status Indicator
LED
Description
Flashing Green once
per second
Indicates synchronization is being attempted between the
EDU-409 List 1 and the upstream (network) module.
Flashing Green more
Indicates synchronization is being attempted between the
than once per second EDU-409 List 1 and the downstream (customer) module.
Steady Green
Indicates HDSL frame synchronization has been achieved
between the EDU-409 List 1 and both the upstream and
downstream modules.
Flashing Red once per Indicates an HDSL Cyclic Redundancy Check (CRC) error has
second
occurred between the EDU-409 List 1 and the upstream module.
See "Technical Specifications" on page 21.
Flashing Red more
Indicates an HDSL CRC error has occurred between the
than once per second EDU-409 List 1 and the downstream module. See "Technical
Specifications" on page 21.
Flashing Yellow once Indicates an NDU (Network Doubler Unit) loopback is in effect in
per second
the EDU-409 List 1 towards the network. This tests the integrity of
the upstream span.
Flashing Yellow more Indicates a CDU (EDU-409 List 1 to customer) loopback is in
than once per second effect in the EDU-409 List 1 towards the customer. This tests the
integrity of the downstream span.
EDU-409 List 1
January 26, 2000
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Loopback Operation
150-409-115-05, Issue 5
LOOPBACK OPERATION
When equipped with the EDU-409 List 1, a HiGain system can execute a
number of loopback commands. The loopbacks can be initiated from the ELU
craft port or from the ELU front-panel buttons.
For more information about doubler loopback commands, refer to the
appropriate ELU practices (see“Product Support” on page 23).
All NDU loopbacks are towards the network. All CDU loopbacks are towards
the customer. Figure 3 is a diagram of a HiGain loopback system.
Figure 3. HiGain Loopbacks
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EDU-409 List 1
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150-409-115-05, Issue 5
Functional Description
FUNCTIONAL DESCRIPTION
HiGain uses the ADC Two-Binary, One-Quaternary (2B1Q) HDSL
transceiver system to establish two full-duplex 1040 kbps data channels
between the ELU and the ERU units. Each EDU-409 List 1 increases the
maximum range by approximately 3.66 km (12,000 feet) of 0.51-mm wire or
2.74 km (9,000 feet) of 0.4-mm wire per doubler.
A block diagram of the EDU-409 List 1 with pinouts is shown in Figure 4.
The doubler unit power supply uses the HDSL simplified line voltage to
produce +5 Vdc and +3 Vdc required by the EDU-409 List 1 electronics. The
power feed is passed on to the HDSL output pair, to power a second doubler
or a remote unit.
The maximum power dissipation of the doubler unit is 3 W.
Figure 4. Doubler Block Diagram
EDU-409 List 1
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Functional Description
150-409-115-05, Issue 5
SOLAR LOAD
The EDU-409 List 1 can be housed in a variety of outdoor enclosures
manufactured by ADC and other vendors. The number of doublers used in
any of the enclosures depends on the maximum outside ambient temperature.
The doubler capacities for several of these standard enclosures is listed in
Table 5 on page 13 and Table 6 on page 14. The capacities listed in Table 6
(for both indoor and outdoor enclosures) are based on a maximum outside
temperature of +46.1 °C (+115 °F). Consult ADC for the latest deployment
rules when using the enclosures at ambient temperatures above +46.1 °C.
These requirements comply with Bellcore standards, which
require HDSL equipment place in outdoor cabinets to operate
in a temperature, outside the housing, of -40 °F (-40 °C) with
no solar load and +115 °F (+46.1 °C) with a maximum solar
load and maximum power dissipation.
Full solar load is equal to maximum sunlight exposure as
defined in Bellcore’s Technical Advisory TR-TSY-000057.
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January 26, 2000
EDU-409 List 1
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150-409-115-05, Issue 5
Functional Description
The capacities listed for the indoor enclosures in Table 5 assume no solar
load. The capacities listed for the outdoor enclosures in Table 6 assume a full
solar load as described above. The “Recommended Slot Assignment for
Maximum Capacity” column assigns slots according to the following thermal
stress reduction rules:
1
Always leave at least one empty slot between adjacent doublers. The
adjacency rule only applies to the left- and right-hand sides of the
doubler. The top of one unit can be adjacent to the bottom of another,
though the latter configuration should be avoided if possible.
Rule 1 does not apply to the HRE-458 and HRE-819 enclosures
already built into their design.
2
Allow as much room as possible between doublers on all four sides.
Slot assignments that do not follow the recommended
configurations in Table 5 and Table 6 are permissible as long
as the above two rules are applied. Otherwise, damage may
occur to doubler units.
Table 5. Indoor Enclosure Capacities
EDU-409 List 239 T1
Vendor
Description
Model #
1 Doubler
Capacity
Repeater
Capacity
CHARLES
Indoor wall mount
CiAC2300
CiAC2002
4400-09
7
7
2
2
SPC
Indoor rack and wall
mount
18
18
EDU-409 List 1
January 26, 2000
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Functional Description
150-409-115-05, Issue 5
Table 6. Outdoor Enclosure Capacities with Full Solar Load
EDU-409
List 1
Doubler
Capacity
Recommended Slot
Assignment for
Maximum
239 T1
Repeater
Capacity
Vendor
Description Model No.
Capacity
AT&T
OutdoorDual 819
chamber
12
25
1, 3, 5, 9, 11, 13, 15,
17, 19, 21, 23, 25
(See Figure 5 on
page 17)
pole/wall
mount
AT&T
AT&T
Outdoor 841 27A, B, C or 11 per
25 per
1, 3, 6, 8, 10, 11, 12,
cabinet
D shelf
shelf/44
total
shelf/100 16, 18, 20, 23, 25
total
Outdoor
cabinet
809
6
12
All even or all
odd-numbered slots.
ALCATEL Outdoor
canister,
621204
621205
621206
5
7
9
12
25
50
1, 3, 5, 8, 10
2, 5, 9, 12, 14, 17, 24
pole/wall
mount
2, 5, 9, 12, 14, 17, 24,
31, 47
CHARLES Outdoor
canister,
CiAC4306
3
6
All even or all
odd-numbered slots.
pole/wall
CiAC3300
CiAC5312
2
5
3
1, 3
mount
12
All even or all
odd-numbered slots.
CiAC5325
CiAC5350
7
9
25
50
1, 3, 9, 11, 13, 17, 22
1, 5, 9, 14, 16, 23, 32,
41, 49
SIERRA
Outdoor
canister,
pole/wall
mount
3011
3
6
All even or all
odd-numbered slots.
SUNRISE
SPC
3021
3
3
5
7
8
5
1, 3, 5
Outdoor
canister,
pole/wall
mount
7130-08FP
7130-12FP
7130-25FP
HRE-458
8
1, 3, 6
12
25
10
1, 3, 5, 7, 11
2, 4, 8, 11, 14, 16, 25
1, 2, 4, 5, 7, 8, 9, 10
ADC
Outdoor
canister,
pole/wall
mount
14
January 26, 2000
EDU-409 List 1
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150-409-115-05, Issue 5
Functional Description
Table 6. Outdoor Enclosure Capacities with Full Solar Load (Cont.)
EDU-409
List 1
Doubler
Capacity
Recommended Slot
Assignment for
Maximum
239 T1
Repeater
Capacity
Vendor
Description Model No.
Capacity
ADC
Outdoor
dual
HRE-819
12
12
All slots
chamber,
pole/wall
mount
Some of the Table 6 capacities are conservative estimates.
Ongoing tests at ADC may result in increasing some of these
estimates.
Thermal constraints must be observed to ensure reliable
service for worst-case conditions.
EDU-409 List 1
January 26, 2000
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Functional Description
150-409-115-05, Issue 5
ALTERNATIVE DOUBLER ENCLOSURE
CAPACITIES
The number of doublers can be increased by two for applications where the
enclosures are underground or not exposed to direct sunlight. However, any
increase in capacity is still subject to rule 1 on page 4.
The doubler capacity numbers listed for each outdoor
enclosure must be reduced by one for every additional
+5 °F (+2.8 °C) rise, or any fraction thereof, in outside ambient
temperatures above +115 °F (+46.1 °C).
The capacities can be increased by one for every additional
+5 °F (+2.8 °C) reduction in outside ambient temperatures
above +115 °F (+46.1 °C).
Reduce the doubler capacity by one for every two doublers that do not have
an empty slot between them. If the application allows seven doublers, but two
are directly adjacent to each other, then the total capacity must be reduced to
six.
Standard T1 repeaters can be installed in the same enclosure with doubler
occupy the same case with the standard repeaters must be reduced by one for
every four T1 repeaters (or fractions thereof) installed. T1 repeaters located
with doublers in outdoor enclosures should be placed in slots that are not
adjacent to the doublers.
Rule 1 in the section titled “Doubler Enclosure Capacities with
Full Solar Load” on page 12 does not apply if the adjacent slot
is occupied by a T1 repeater.
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EDU-409 List 1
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150-409-115-05, Issue 5
Functional Description
The AT&T 819 enclosure has two, individual isolated chambers as shown in
Figure 5. Slots 1 through 14 are in one chamber. The other chamber contains
slots 15 through 25 along with the Pressure (PRES), Filter (FIL), Capacitor
(CAP), and COIL slots.
.
Figure 5. AT&T 819 Enclosure
The AT&T 819 can house up to 13 EDU-409 List 1 doublers in the slots
designated as D1 through D13 as shown in Figure 5.
Because the length of the EDU-409 List 1 extends beyond the
range that older AT&T 819 repeater apparatus covers can
accommodate, the cover must be replaced by a deeper cover.
EDU-409 List 1
January 26, 2000
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Functional Description
150-409-115-05, Issue 5
RULES
The deployment rules for micro doubler capacity are summarized below:
1
2
Use Table 5 on page 13 for indoor enclosures.
Use Table 6 on page 14 for outdoor enclosures with Full Solar Load for
ambient temperatures up to 46.1 °C maximum.
3
4
5
6
7
The capacities shown in Table 6 can be increased by two for non-solar
load (shaded or manhole applications).
Decrease capacities in Table 6 by one for every 2.7 °C increase, or
fraction thereof, in ambient temperatures above 46.1 °C.
Increase the capacities by one for every full +2.7 °C reduction in ambient
temperature below 46.1 °C.
Decrease any outdoor capacity by one for every four E1 repeaters, or
fraction thereof, that are installed with the doublers.
For all outdoor applications, decrease the capacity by one for every two
adjacent doublers that are not separated by at least one empty slot.
18
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EDU-409 List 1
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150-409-115-05, Issue 5
Ground Faults
GROUND FAULTS
GROUND FAULT DETECTION
The EDU-409 List 1 has ground fault detection (GFD) circuits. When used
with HiGain line units, ground faults occurring at any point along any span
are immediately detected. Ground fault conditions shut the HiGain circuit
down. The line unit periodically tries to apply power to the first span to
determine whether the fault condition is still present. As long as the condition
exists, the power cycling and ground fault protection continues. To
discontinue the ground fault protection, locate and repair the fault in the
cable.
Circuits containing both the EDU-409 List 1 and older doublers without a
GFD circuit also support this new ground fault detecting feature, provided the
doubler nearest the ELU is an EDU-409 List 1.
The operation of the ground fault circuit requires that the
doubler enclosure ground plane is properly connected to
earth ground.
EDU-409 List 1
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Ground Faults
150-409-115-05, Issue 5
GROUND FAULT ISOLATION
Solutions for common problems that may occur with the EDU-409 List 1 are
listed in Table 7.
Table 7. Fault Isolation Guide
Problem
Solution
LED does
not light
1 Verify that the ELU is installed and operational in the Central Office.
2 Verify proper cabling between the doubler enclosure and the Central
Office.
3 Measure 100 to 200 Vdc between pins 5 or 6 and 8 or 9. This voltage
peaks every 15 to 30 seconds as the ELU cycles between self test and
line power. If less than 100 Vdc is present, check the cabling or the ELU.
Only the line units mentioned in the Description and Features section
can be used to power doublers. Other ELU models may not provide
reliable operation and should not be used.
LED
Synchronization is being attempted with the upstream unit.
continues to
flash green
once a
second
EDU-409
The ELU at the Central Office is not present. Measure the resistance of the
List 1 loses HDSL input loop. Resistance should be normal loop resistance plus the
power
25 Ω signature of the ELU.
HDSL line
power only
appears in
very short
bursts
A grounded pair is being detected by either the ELU or EDU-409 List 1 in
Span 1. This causes the unit’s ground fault detection (GFD) circuit to
trigger, which forces the HDSL line voltage off immediately after it cycles
on. Remove the ELU and EDU-409 List 1 and check for cable ground faults
in Span 1. The doubler’s GFD circuit can easily be checked by grounding
any of the loop connectors to the doubler. This forces the circuit down
immediately. If the circuit stays up, either the GFD circuit is defective or the
EDU-409 List 1 is not properly grounded.
EDU-409
A grounded pair is being detected by the EDU-409 List 1 in Span 2. Remove
List 1 shuts EDU-409 List 1 and check for ground fault in Span 2.
off after
Span 1
comes up
20
January 26, 2000
EDU-409 List 1
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150-409-115-05, Issue 5
Technical Specifications
TECHNICAL SPECIFICATIONS
HDSL
Line Code
1040 kbps, 2B1Q full duplex
Output
+13 dBm
Line Impedance
Resistive Signature
135 Ω
Input/Output: 25 Ω (maximum)
Line Output DC: 25 Ω (maximum)
Start-up Time (per span)
15 seconds (typical), 30 seconds
(maximum)
Line Clock Rate
Internal Stratum 4 clock
Power Consumption
3.0 W (nominal), 3.2 W (maximum)
Maximum Provisioning Loss
35 dB @ 260 kHz, 135 Ω
Wander and Jitter
Nominal - The absence of an HDSL framer from the EDU-409 List 1
reduces the Doubler Unit’s effect on a circuit’s overall wander and jitter to
second order insignificance when compared to the wander and jitter of
other circuit modules.
Latency
80 microseconds (maximum either direction)
Mounting
Single 239 T1 Mechanics slot
Electrical Protection
Secondary surge and power cross protection on all HDSL ports
EDU-409 List 1
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Technical Specifications
150-409-115-05, Issue 5
Environmental
Operating Temperature
-40 °C (-40 °F) to +70 °C (+158 °F)
Operating Humidity
(non-condensing)
5% to 95%
Operating Temperature in
Outside Enclosures
Complies with Section 10.2.1.3 of
TA-NWT-001210
Operating Elevation
60.96 m (200 feet) below sea level to
3.96 km (13,000 feet) above sea level
Dimensions
Height
6.6 cm (2.6 inch)
1.9 cm (0.75 inch)
16.5 cm (6.5 inch)
1.76 kg (0.8 lbs)
Width
Depth
Weight
Standards Compliance
EN-60950 Low Voltage
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150-409-115-05, Issue 5
Product Support
PRODUCT SUPPORT
ADC Customer Service Group provides expert pre-sales and post-sales
support and training for all its products.
Technical support is available 24 hours a day, 7 days a week by contacting
the ADC Technical Assistance Center (TAC).
•
•
•
Quotation Proposals
Sales Assistance
Ordering and Delivery
General Product Information
800.366.3891 extension 73000
(USA and Canada)
952.917.3000
Fax: 952.917.3237
•
Complete Solutions (from concept to
installation)
Systems Integration
800.366.3891, extension 73000
(USA and Canada)
•
•
•
•
•
•
•
•
•
•
•
•
•
Network Design and Integration Testing
System Turn-Up and Testing
952.917.3000
Network Monitoring (upstream or downstream)
Power Monitoring and Remote Surveillance
Service/Maintenance Agreements
Systems Operation
Technical Information
ADC Technical Assistance Center
800.638.0031
714.730.3222
Fax: 714.730.2400
Email: [email protected]
System/Network Configuration
Product Specification and Application
Training (product-specific)
Installation and Operation Assistance
Troubleshooting and Repair/Field Assistance
Online Technical Support
•
•
Online Technical Publications
ADC Return Material Authorization (RMA)
number and instructions must be obtained
before returning products.
Product Return Department
800.366.3891 ext. 73748 or
952.917.3748
Fax: 952.917.3237
Email: repair&[email protected]
All 800 lines are toll-free in the USA and Canada.
EDU-409 List 1
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Abbreviations
150-409-115-05, Issue 5
ABBREVIATIONS
AIS
Alarm Indicator Signal
Capacitor
CAP
CDU
CRC
DDS
EDU
ELU
EDU to Customer loopback
Cyclic Redundancy Check
Digital Data Service
HiGain E1 Doubler Unit
HiGain E1 Line Unit
ERU
FIL
HiGain E1 Remote Unit
Filter
GFD
HCDS
HDSL
HRE
KBPS
MBPS
NDU
POTS
PRES
RMA
SPLB
Ground Fault Detection
High Capacity Digital Service
High bit-rate Digital Subscriber Line
HiGain Remote Enclosure
Kilo (thousand) Bits Per Second, sometimes written Kb/s
Mega (million) Bits Per Second, sometimes written Mb/s
EDU to Network Loopback
Plain Old Telephone Service
Pressure
Return Material Authorization
Special Loopback
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150-409-115-05, Issue 5
Glossary
GLOSSARY
American Wire
Gauge
The standard used to describe wire size. The diameter of the wire
increases as the gauge decreases. 26 gauge is 4 mm (0.0157') in
diameter, 24 gauge is 51 mm (0.0201'), and so on.
Two-Binary, One-Quaternary. Line coding used for HDSL.
A group of 25 pairs of wires.
2B1Q
Cable Binder
Group
Bridged Tap
A pair of wires connected in parallel across a single line to form a “T”
configuration.
Loop
A length of twisted-pair copper wire connecting the local unit of an
HDSL circuit to the remote unit.
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Glossary
150-409-115-05, Issue 5
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150-409-115-05, Issue 5
CISPR-A ComplianceCertification and Warranty
CERTIFICATION AND WARRANTY
CISPR-A COMPLIANCE
This unit complies with the limits for CISPR-A for radiated emissions. 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, can 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. Refer
to the installation section of the appropriate instruction manual for the unit you are installing to get
information on cabling, correct connections and grounding
LIMITED WARRANTY
ADC DSL Systems, Incorporated (“ADC”) warrants that, for a period of sixty (60) months from the
date of shipment, the hardware portion of its products will be free of material defects and faulty
workmanship under normal use. ADC's obligation, under this warranty, is limited to replacing or
repairing, at ADC's option, any such hardware product which is returned during the 60-month warranty
period per ADC's instructions and which product is confirmed by ADC not to comply with the
foregoing warranty.
ADC warrants that, for a period of 90 days from the date of purchase, the software furnished with its
products will operate substantially in accordance with the ADC published specifications and
documentation for such software. ADC’s entire liability for software that does not comply with the
foregoing warranty and is reported to ADC during the 90-day warranty period is, at ADC’s option,
either (a) return of the price paid or (b) repair or replace of the software. ADC also warrants that, for a
period of thirty (30) days from the date of purchase, the media on which software is stored will be free
from material defects under normal use. ADC will replace defective media at no charge if it is returned
to ADC during the 30-day warranty period along with proof of the date of shipment.
The transportation charges for shipment of returned products to ADC will be prepaid by the Buyer.
ADC will pay transportation charges for shipment of replacement products to Buyer, unless no trouble
is found (NTF), in which case the Buyer will pay transportation charges.
ADC may use reconditioned parts for such repair or replacement. This warranty does not apply to any
product which has been repaired, worked upon, or altered by persons not authorized by ADC or in
ADC's sole judgment has subjected to misuse, accident, fire or other casualty, or operation beyond its
design range.
Repaired products have a 90-day warranty, or until the end of the original warranty period—whichever
period is greater.
ADC DISCLAIMS ALL OTHER WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, WITH RESPECT TO ITS PRODUCTS AND ANY
ACCOMPANYING WRITTEN MATERIALS. FURTHER, ADC DOES NOT WARRANT THAT
SOFTWARE WILL BE FREE FROM BUGS OR THAT ITS USE WILL BE UNINTERRUPTED OR
REGARDING THE USE, OR THE RESULTS OF THE USE, OF THE SOFTWARE IN TERMS OF
CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
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ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel:
714.832.9922
Fax: 714.832.9924
Technical Assistance
Tel:
Tel:
800.638.0031
952.917.3222
Fax: 714.730.2400
ISO 9001/TL 9000
DOCUMENT: 150-409-115-05, ISSUE 5
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DNV Certification, Inc.
1220650
REGISTERED FIRM
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