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WorldDSL
™
WorldDSL is ADC’s line of high-speed HDSL access devices specifically designed for the diverse
telecommunications needs of global markets. Ideal for telco and enterprise networks, WorldDSL
products comply with international standards to ensure compatibility, performance and safety
within your network environment. The LTU-/NTU-814s are the latest WorldDSL products that
provide two-pair T1 fixed rate HDSL and can be installed at the CO or the customer premises.
The LTU-/NTU-814s can be part of a fully managed system. Using a VT100 compatible terminal or
a PC, they can be managed via their local craft ports or centrally via a management card installed
in a CO shelf. The user may also select ADC's SNMP management software running under
Windows to provision the system, collect alarm and performance data, and conduct diagnostic
tests either locally or from a remote management station. In any of these modes, both ends of the
circuit can be programmed and managed through the CO, minimizing travel to the customer site.
Features:
Two-Pair T1 Fixed-Rate HDSL
• Central office or customer premises use
• HDSL output compliant with TS101135
• Fiber optic quality (BER 10
-10
)
• ETSI compliant HDSL to ensure crosstalk
compatibility in the wire bundle
• Single pair mode with a max. rate of 768 kbps
• User software selectable dataport interface
• Timeslot priority mode: failure of one HDSL
pair automatically switches the first 12
channels to the operating pair
• LTU's can provide line powering for up to
two doublers for longer reach
• LTU's can provide wetting current to reduce
corrosion of connections
• User software mapping of G.703/704 and
data ports to the HDSL
• Downloadable programs from ADC’s Web
Site for easy unit upgrade
• Compatible with ADC's standard line of
WorldDSL enclosures and chassis
ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, Minnesota USA 55440-1101
Specifications published here are current as of the date of publication of this document. Because we are continuously improving our
products, ADC reserves the right to change specifications without prior notice. At any time, you may verify product specifications by
contacting our headquarters office in Minneapolis. ADC Telecommunications, Inc. views its patent portfolio as an important corporate
asset and vigorously enforces its patents. Products or features contained herein may be covered by one or more U.S. or foreign patents.
100090PR 1/01 Revised © 2001 ADC Telecommunications, Inc. All Rights Reserved An Equal Opportunity Employer
Web Site: www.adc.com
From North America, Call Toll Free: 1-800-366-3891 • Outside of North America: +1-952-938-8080 Fax: +1-952-946-3292
For a complete listing of ADC's global sales office locations, please refer to our web site.
HDSL Interface Line Code: 2B1Q
Line Rate: 848 kbps on each pair
Range: see chart at right
Connector: DB9F (adapters available)
Protection: ITU-T K.20 and K.21 compliant
Compliance: ETSI TS101135 and ITU-T G.991.1
T1 Interface Line Code: AMI or B8ZS
Data Rate: Nx64k, k=1 to 24
Impedance: 100 Ω balanced
Framing: SF (D4), ESF or unstructured
Connector: D15F
Data Interface User software selectable as: V.35, V.36, RS-530, X.21
Connector: D25F (adapters available)
Timing: internal, external, Nx64k, HDSL
Compliance: Net 2
Performance HDSL: noise margin, pulse attenuation, ES, UAS
T1: G.821
Alarms (software): LOS, LFA, AIS, RAI, LOC (loss of clock)
Alarms: Form C relay contacts
Loopbacks: local or remote
Test Pattern: PRBS generator and BER meter
Power LTU-814: Input Power: -36 to -72VDC
Requirements Consumption: 5W without line powering on; 15W with line powering on
NTU-814: Input Power: 36 to -72VDC
Consumption: 5W
Environmental Operating Temperature: -5°C to +50°C
Storage Temperature: -40°C to +85°C
Humidity: up to 95% RH non-condensing
Chassis and EMS-830 or EMS-832 Central Office Shelf
Enclosures ERE-811 single slot desktop enclosure with internal AC to DC converter
Regulatory Overvoltage: K.20, K.21
Catalog Line Powering/
Number Part Number Wetting Current User Interface
LTU-814A 150-1420-44A provides both G.703/704 and V.35/V.36/RS-530/X.21 ports
NTU-814A 150-1420-54A locally or line-powered G.703/704 and V.35/V.36/RS-530/X.21 ports
Ordering Information
0.91 mm0.40 mm 0.51 mm 0.61 mm
1
0
2
3
4
5
6
7
RANGE
(KILOMETERS)
WIRE
SIZE
MAXIMUM
TYPICAL
MINIMUM
9
8
Max. Provisioning Loss: 35 dB@292 kHz
WorldDSL Rate/Reach Chart
. travel to the customer site.
Features:
Two-Pair T1 Fixed-Rate HDSL
• Central office or customer premises use
• HDSL output compliant with TS101135
• Fiber. The LTU-/NTU-814s are the latest WorldDSL products that
provide two-pair T1 fixed rate HDSL and can be installed at the CO or the customer premises.
The
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