Atec Agilent-N1627A User Manual

GENERAL SPECIFICATIONS

The Agilent N1627A Time Domain Reflectometer
module provides highly accurate, general purpose
metallic cable TDR capability to the Service Advisor
family. It’s easily used for short and long distance
applications on any type of cable network including
twisted pair, coaxial, and LAN.

RELEVANT STANDARDS

UL 3111.1, UL 1950
89/336/EEC, 72/23/EEC
EN55011
CE
ISO 9001

TEST SIGNAL CHARACTERISTICS

Velocity of Propagation (VoP)

• Range and Resolution: User selectable from 0.010
to 0.999 in 0.001 or 0.01 steps

Test Signal Output: 3 to 25 Vpp
Pulse Widths

• Ten selectable widths from 5 nanoseconds to 5
microseconds

• Twisted Pair: 5, 10, 20, 50, 100, 200, 500, 1000,
2000, 5000 nsec

• Coaxial: 5, 10, 20, 50, 100, 200, 500, 1000 nsec

N1627A

Time Domain Reflectometer (TDR)

Specifications

RESULTS ANALYSIS

Measurement Modes

• Unbalanced: transmit/receive on single BNC port

• Balanced: single port transmit/receive; dual port
transmit/receive

Event Marking: three horizontal cursors; one vertical
cursors
Waveform Comparison: compare current and stored
waveform; display both waveforms and difference

Threshold Selection: available using vertical cursor
Horizontal Scale: meters, feet, or seconds
Magnifications: horizontal and vertical zoom

TEST CONNECTORS

Input Protection: ± 400 V DC and AC
Output Connectors

• Balanced: dual bantams

• Unbalanced: BNC

Output Impedance

• Balanced: 100 ohms

• Unbalanced: 50 Ohms

MEASUREMENT CHARACTERISTICS

Dynamic Range: Greater than 70 dB
Horizontal Resolution

• 0.026 m at VoP 0.999

• 0.039 m at VoP 0.660
Maximum Range: 20,000 m at any VoP, depending on
cable type and condition

Distance Accuracy: 0.1 % ±200 ps ± VoP uncertainty
± cursor resolution

Cursor Resolution: 0.28% of selected range
Display Range: start and stop range independently

selectable

Vertical Sensitivity: >65 dB
Vertical Resolution:

• Up to 16 effective bits depending on test setup

• 241 pixels (vertical) displayed

Return Loss Measurement

• Auto dBRL: Two digit calculation at cursor set
Crosstalk Measurement: two digit calculation at

cursor set
Noise Filter: Adaptive noise filtering based on test
settings

Compute Distances: to cursors, between cursors
Waveform Storage: 50 waveforms
Cable Characteristics Database

• Includes factory programmed cable characteris­tics

• Provides for user entry of new cable types

Test Configuration Database

• Store up to 50 test configurations for instant
recall, plus expansion via PCMCIA card

• Clone test configurations for service organization

Display: (in Service Advisor tablet) 640 x 480 pixel
color VGA LCD with touchscreen. Backlighting with
contrast control

DATA AND FILE MANAGEMENT

• Maintenance: software field upgradeable using
companion PC

• Remote File Access: results data accessible
using companion PC

GENERAL

Power: (from Service Advisor Tablet)

• Battery portable with internal battery charger

• NiMH 10.8 Vdc smart battery with charge
indicator

• AC/DC power converter included

• Vehicle power converter available

Related Products

All Agilent test modules, including the TDR Module,
can be used interchangeably with both Agilent’s
Service Advisor portable test tablet and Internet
Advisor PC platforms. Modules plug directly into the
Service Advisor tablet or Agilent’s Service Advisor
Undercradle, which attaches to the Internet Advisor
network analyzer.

N1610A Service Advisor Test Tablet

Agilent’s Service Advisor Test Tablet is a
lightweight, portable platform that supports a
complete range of installation and maintenance
testing requirements. The battery-powered tablet
features a color touchscreen, and accepts all of the
single and dual-slot application modules listed
below.

N1700A Service Advisor Undercradle

The Service Advisor Undercradle attaches to
Agilent’s Internet Advisor network analyzer,
allowing Internet Advisor users to share use of
single and dual-slot plug-in testing modules. The
undercradle allows field organizations to combine
physical network and service deployment testing
with the Internet Advisor’s powerful, higher-layer
protocol analysis capabilities.

Ordering Information

N1627A Time Domain Reflectometer

(TDR) Test Module

N1610A Service Advisor Portable Test Tablet

opt 500: Remote Services

N1700A Service Advisor Undercradle

N1660A Dual DS1/0 Test Module

Agilent’s Dual DS1/0 Test Module for the Service
Advisor platforms simplifies DS1 and DSO testing by
providing complete analysis of line conditions and
status in both directions with the touch of a single
button.

N1640A ATM Cell Processor Test Module

Combined with the SONET/SDH Test Module, the
ATM module provides complete SONET/SDH ATM
BER, QoS and VPI/VCI testing capabilities at up to
155 Mbp/s line rates.

N1645A SONET/SDH Test Module

This line interface module provides connectivity and
physical layer SONET and SDH testing for OC-1,
OC-3c, STM-0 (optical) and STM-1(optical) lines.

N1625A/N1626A xDSL TIMS Test Module

The double-slot TIMS Test Module supports a
complete range of Transmission Impairment
Measurements (TIMS) related to line qualification
and troubleshooting for a wide range of services
from POTS to ADSL.

For more information about Agilent Technologies
test and measurement products, applications,
services, and for a current sales office listing, visit
our web site: http://www.agilent.com/find/tmdir

You can also contact one of the following centers
and ask for a test and measurement sales
representative.

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Agilent Technologies
Test and Measurement Call Center
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(tel) 1 800 452 4844

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Agilent Technologies Canada Inc.
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Agilent Technologies
Test & Measurement
European Marketing Organisation
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1180 AZ Amstelveen
The Netherlands
(tel) (31 20) 547 9999

Japan:

Agilent Technologies Japan Ltd.
Measurement Assistance Center
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Tokyo 192-8510, Japan
(tel) (81) 426 56 7832
(fax) (81) 426 56 7840

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Agilent Technologies
Latin American Region Headquarters
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Miami, Florida 33126
U.S.A.
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Agilent Technologies Australia Pty Ltd
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Forest Hill, Victoria 3131
(tel) 1-800 629 485 (Australia)
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Agilent Technologies
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Taikoo Shing, Hong Kong
tel: [phone]
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© Agilent Technologies, 2000

Technical data is subject to change
Printed in the U.S.A. (5/00)
5980-1632E