SmartClass ADSL - Sitel

ADSL Service Installation Tester
SmartClass ADSL
Applications
• Installation and maintenance of
ADSL2+ service
• Copper pair verification for ADSL
service
• Through mode test for ATU-R
replacement
• Service testing to eliminate
customer PC as failure point
WEBSITE: www.jdsu.com
ACTERNA TEST & MEASUREMENT SOLUTIONS
Key Features • The easiest tool for sync and ping testing
• Extremely easy to use with two button clicks to view
key results
• Thoroughly qualifies ADSL 1/2/2+ access service including
attenuation, noise margin, bits per tone, actual bit rate, and
maximum bit rate
• DVOM testing for copper line verification
• Data layer test options including PPPoE, PPPoA, and IPoA
• Large screen for display of key results and bits-per-tone graphs
• Through-mode functionality to support modem replacement
testing
• LED lights for quick verification
• Field replaceable AA batteries – supports rechargeable
NiMH and commercially available alkaline batteries
• Rugged design for field usage
• Full telephone keypad for easy data entry
• USB port for result access and configuration
Access Network technologies are growing in complexity. More intelligence, more
circuits, and more services are moving to the network edge. You need to equip
yourself with the right tools to stay ahead of the curve. JDSU’s SmartClass
portfolio of test tools gives you the triple-play of intelligence, power and
portability you need to help deliver the triple-play of voice, video, and data
services. With SmartClass, you get the right handheld test tool for the job at hand.
The JDSU SmartClass ADSL is the perfect tool for the field engineer installing and
maintaining ADSL services. The simple user interface, including graphical display
and telephone style keypad, allows field engineers to quickly configure and verify
performance of ADSL service.
The ADSL layer measurements allow the field engineer to verify key parameters
that will ensure the long term reliability of the customer’s circuit.
The built in data layer functionality allows the field engineer to verify that the end
customers can achieve full authentication and access internet IP addresses.
The built-in 10M Ethernet ensures that the service can be tested, not only at the
DSLAM, MDF, cross-box, or NID (customer premise), but also at the customers
PC interface.
For the field engineer requiring copper measurements, the SmartClass ADSL
Copper option provides telecom-class DVOM measurements.
The instrument also allows the storage and retrieval of pre-set configurations and
also allows field engineer to record results for transfer to a PC.
The instrument’s rugged design and field replaceable batteries make the
SmartClass ADSL an essential tool for all ADSL installation field engineers.

2
ATU-Cs
POTS switch
DSLAM
ATM
DATA network
POTS
POTS
splitter
ADSL
MDF
ADSL SERVICE INSTALLATION TESTER
ADSL overview
Delivery of ADSL services requires a single copper pair configuration of a
standard voice circuit with an ADSL modem at each end of the line, creating three
information channels – a high speed downstream channel, a medium speed
upstream channel, and a plain old telephone service (POTS) channel for voice.
Data rates depend on several factors including the length of the copper wire, the
wire gauge, presence of bridged taps, and cross-coupled interference. The line
performance increases as the line length is reduced, wire gauge increases, bridge
taps are eliminated and cross-coupled interference is reduced.
The modem located at the subscriber’s premises is called an ADSL transceiver
unit-remote (ATU-R), and the modem at the central office is called an ADSL
transceiver unit-central office (ATU-C). The ATU-Cs take the form of circuit
cards mounted in the digital subscriber line access multiplexer (DSLAM). A
residential or business subscriber connects their PC and ATU-R modem to a
telephone outlet on the wall.
ADSL2 has been specifically designed to improve the rate and reach of ADSL
largely by achieving better performance on long lines. ADSL2 accomplishes this
by improving modulation efficiency, reducing framing overhead, achieving higher
coding gain, improving the initialization state machine, and providing enhanced
signal processing algorithms. ADSL2+ further improves on the ADSL2 standard
by allocating additional spectrum for downstream data, dramatically improving
the data rate over ADSL2 or ADSL.
Cross Box
Pedestal
DLC Cross Box
Splice case
NID
NID
NID
POTS
splitter
POTS
ADSL
ATU-R

3
ADSL SERVICE INSTALLATION TESTER
Measuring ADSL Performance
The SmartClass ADSL can be used to verify that sync can be achieved and service
can be delivered at the desired bit rate.
If problems exist, the instrument can be placed at various points in the network
(ATU-R, NID, Splice case, Cross Box, MDF, DSLAM) to isolate where the problem
is located. In addition, the field engineer can measure key physical parameters
such as actual upstream and downstream bit rates, noise margin, attenuation, and
capacity. The noise margin indicates how much noise can be tolerated before the
line degrades and suggests the long-term quality of the line.
If the delivered service is slower than expected, the field engineer can study the
bits per tone graph. Dips in the bits per tone graph can be used to identify various
sources of interference.
The instrument also allows field engineers to verify end-to-end IP connectivity by
performing a ping to a selected IP address. The configurations required to
perform this operation, (encapsulation, the ATM VPI/VCI, the username and
password) can easily be saved on the instrument for ease of use.
The SmartClass ADSL also allows the field engineer to test the copper lines for
impairments that could affect ADSL service. The DC Volts measurements can be
used to identify problems caused by crossing with other pairs carrying services
like POTS, T1/E1, ADSL, or HDSL. The AC Volts measurement can be used to
identify coupling from power lines. The opens and resistance measurement can
be used to estimate the length of the loop to gauge what performance can be
expected. Leakage resistance can be used to identify cable damage, wet sections or
bad splices.

Specifications
Possible Configurations
ADSL 2+/2/1 (Annex A) and Copper verification
ADSL 2+/2/1 (Annex B) and Copper verification
ADSL 2+/2/1 (Annex A)
ADSL 2+/2/1 (Annex B)
ADSL Specifications
Standard compliance, ADSL over
POTS modem
– ITU-T G.992.1 Annex A (G.DMT)
– ITU-T G.992.2 Annex A (G.lite)
– ITU-T G.992.5 Annex A (ADSL2+)
– ITU-T G.992.5 Annex L (RE-ADSL)
– ANSI T1.413-1998, Issue 2
Standard compliance, ADSL over ISDN
modem
– ITU-T G.992.1 Annex B (G.DMT)
– ITU-T G.992.3 Annex B (G.DMT.BIS)
– ITU-T G.992.5 Annex B (ADSL2+)
General settings
–Auto Sync
Physical layer feature support
– Actual and maximum bit rates
– Noise margin
– Attenuation
– Modem state
– Far vendor ID, revision
– Graphical display of BPT (bits-per-tone)
– Graphical display of SNR (SNR-per-tone)
ADSL errors
– LOS (loss of sync)
– SEF (severely errored frames)
– CRC (cyclic redundancy check)
– LCD (Loss-cell delineation)
– HEC (header error correction)
– NCD (no cell delineation)
– Modem errors
PPP/IP connectivity
– PPPoA, PPPoE, IPoA Terminate, and
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ADSL SERVICE INSTALLATION TESTER
Through modes
– Bridged Ethernet Through modes
– Encapsulation: LLC SNAP,VC-MUX
– Address Modes: DHCP, IPCP
Data features
– IP statistics: RX/TX %, lost packets, packet delay
– Single or multiple PING
– ATM OAM statistics
Ethernet statistics
– RX/TX bytes
– RX/TX frames
– RX/TX errors
– Collisions
ATM statistics
– Total RX/TX cells
– TX AAL 5 frames
– RX AAL 5 frames
– RX CRC errors
– RX AAL5 length errors
– RX AAL5 aborts
Copper Measurement Specifications
DVOM measurements
– AC Voltage
– DC Voltage
– DC Current
– Resistance
– Leakage
– Distant to short
Opens measurement:
– Displays the line capacitance or the calculated distance based
on selected cable parameters
– Distance range: 0 to 8 km (0 to 26,677 ft)
General specifications
Power supply
– 4 AA field replaceable batteries (NiMH and Alkaline)
– Operating time approximately 3 to 4 h of typical usage
– Auto switch-off: 10 min after last action
– Charging time, internal: 4 h from empty to full charge
– AC line operation via external adapter/charger
All statements, technical information and recommendations related to the products herein are based upon information believed to be
reliable or accurate. However, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any
inaccuracies. The user assumes all risks and liability whatsoever in connection with the use of a product or its application. JDSU reserves
the right to change at any time without notice the design, specifications, function, fit or form of its products described herein, including
withdrawal at any time of a product offered for sale herein. JDSU makes no representations that the products
herein are free from any intellectual property claims of others. Please contact JDSU for more information. JDSU and the JDSU logo are
trademarks of JDS Uniphase Corporation. Other trademarks are the property of their respective holders. ©2006 JDS Uniphase
Corporation. All rights reserved. 30137425 000 0206 SCADSL.DS.ACC.TM.AE
ASIA PACIFIC
TEL: +852 2892 0990
FAX: +852 2892 0770
Permissible ambient temperature
– Nominal range of use -5°C (23°F) to +50°C (122°F)
– Storage and transport –30°C (-22°F) to +60°C (140°F)
Humidity
– Operating humidity 10% to 80%
Physical specifications
– Size (H x W x D) 230 x 120 x 50 mm (9.05 x 4.72 x 1.97 in)
– Weight, including batteries < 1kg (2 lbs)
– Display 240x160 monochrome display
CE Marked
EMEA
TEL: +49 7121 86 2222
FAX: +49 7121 86 1222
WEBSITE: www.jdsu.com