Sage 923lts User Manual
Sage 923LTS User’s Guide
Automated Local Loop Test
System
Sage Instruments
240 Airport Blvd.
Freedom, CA 95019
Tel. (831) 761-1000, Fax (831) 761-2452
www.sageinst.com
Part Number 9100-0923-01 v2.0
Advanced Test Equipment Rentals
www.atecorp.com 800-404-ATEC (2832)
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No part of this publication may be reproduced, photocopied, stored in a retrieval
system, distributed, translated, or transmitted in any form or by any means
(electronic, mechanical, recording or otherwise) without the express written
2 9100-0923-01 V2.0 SAGE INSTRUMENTS
2000 Sage Instruments
permission of Sage Instruments.
Sage Instruments
240 Airport Blvd.
Freedom, CA 95019
Tel. (831) 761-1000, Fax (831) 761-2452
www.sageinst.com
Table of Contents
Section 1 Introduction 5
The Sage Instruments 923LTS.......................................................................................5
Automated Local Loop Test System (ALTS)...................................................................5
Automated Local Loop Tests...........................................................................................6
Other Tests......................................................................................................................6
100 Responder Noise Measurement ..............................................................................6
102 Responder Loss Measurement ................................................................................6
Perceptual Speech Quality Measurement (PSQM)..........................................................6
The 923LTS Test Environment........................................................................................7
Section 2 Getting Started 9
Unpacking........................................................................................................................9
Options............................................................................................................................9
Charging the Batteries.....................................................................................................9
Initial Charge...................................................................................................................9
Recharging......................................................................................................................9
Viewing the Display........................................................................................................10
Special Screen Display Characters ..................................................................................10
Arrows ....................................................................................................................... 10
Blinking Cursor ........................................................................................................... 10
< Bracketed Selection > .............................................................................................. 10
Using the Keypad ...........................................................................................................11
F1 and F2................................................................................................................... 11
Light Bulb Key ............................................................................................................ 11
t u Backspace, Delete, and Forward ..........................................................................11
pq Up, Down, and Escape ........................................................................................ 11
CLR (Clear)................................................................................................................ 11
INFO.......................................................................................................................... 11
BACK......................................................................................................................... 11
NEXT......................................................................................................................... 11
Volume Control ...........................................................................................................12
TALK.......................................................................................................................... 12
ON/OFF ..................................................................................................................... 12
Using the Telephone Keypad.......................................................................................... 12
Alphabetic and Numeric Data Entry ..............................................................................12
Setting Up the Basic Operating Features......................................................................13
Interfaces ...................................................................................................................... 13
Test Interface .............................................................................................................13
Serial Port .................................................................................................................. 13
Environment .................................................................................................................. 14
Display Contrast ......................................................................................................... 14
Maximum Wait for Dial Tone ........................................................................................ 14
No Answer Time Out................................................................................................... 14
Backlight Time Out ...................................................................................................... 14
Audible Alert............................................................................................................... 14
Phone Lists (for Responders)..........................................................................................15
Loading Tests ................................................................................................................16
Loading ALTS Test Templates for the First Time ..............................................................16
SAGE INSTRUMENTS 9100-0923-01 V2.0 3
Section 3 Using the 923LTS 17
Test Steps in Brief ..........................................................................................................17
Field Testing Prerequisites ............................................................................................. 17
Connecting to the Line Under Test................................................................................ 17
RJ Connections ..............................................................................................................17
Ground Connection ........................................................................................................17
How to Perform a Test or Test Suite.............................................................................18
How to Perform a 100 or 102 Test................................................................................19
Aborting a Test .............................................................................................................. 19
Viewing Test Results.....................................................................................................19
Viewing Results on the 923LTS....................................................................................... 20
Test ID Screen............................................................................................................ 20
Test Call Screen .........................................................................................................21
Call Back Screen ........................................................................................................ 21
Test Measurement Details.............................................................................................. 21
23 Tones Measurement Data....................................................................................... 21
Updating Test Suites .....................................................................................................22
Automatic Test Updates ................................................................................................. 22
Manually Updating Tests................................................................................................ 22
Using the 923LTS as a Telephone................................................................................22
Section 4 Technical Support 25
923LTS Technical Support............................................................................................25
Internet Support.......................................................................................................... 25
Frequently Asked Questions .........................................................................................25
Why does the display light go out?.................................................................................. 25
Why does the 923LTS automatically shut off?.................................................................. 25
Failing Battery Power ..................................................................................................25
Does the 923LTS need to be calibrated? .........................................................................26
How can I restore the original defaults? ...........................................................................26
Cold Boot ................................................................................................................... 26
Confirming a Successful Cold Boot .............................................................................. 26
What are the 923LTS’ default settings?........................................................................... 26
Interfaces ................................................................................................................... 27
Environment ............................................................................................................... 27
Phone Lists................................................................................................................ 27
Sage 923LTS Warranty.................................................................................................28
Product Warranty........................................................................................................... 28
Limitation Of Warranty.................................................................................................... 28
Exclusive Remedies ....................................................................................................... 28
Repaired Products Warranty ...........................................................................................28
Shipping Instructions ...................................................................................................... 28
4 9100-0923-01 V2.0 SAGE INSTRUMENTS
Section 1 Introduction
The Sage Instruments 923LTS
The Sage 923LTS is the field component of the Sage Automated Local
Loop Test System (ALTS). The 923LTS initiates loop qualification and
benchmark tests between a subscriber site (or any two-wire access
point) and a Sage responder located with the telephone equipment at
the central office. The Sage 950RTS (or the Sage 356Eplus) performs
farend responder functions for the 923LTS.
The 923LTS is designed to be portable and durable, and can function
just like a telephone handset.
The 923LTS comes equipped to perform 100 and 102 test line
measurements, and performs Perceptual Speech Quality Measurement
(PSQM) tests.
Automated Local Loop Test System
(ALTS)
The Automated Local Loop Test System (ALTS) is designed to automatically test local
loops. Tests are useful to confirm proper line installation, and to monitor ongoing
performance.
ALTS has two components:
1. the Sage 923LTS hand-held unit used in the field
2. a Sage 950RTS (or 356Eplus) responder located in the central office.
A local subscriber can be served by a copper loop, a hybrid fiber coax loop, cable, or a
wireless loop. The 923LTS initiates tests, and displays results immediately upon
completion. Once a test is selected on the 923LTS, it runs automatically. Test templates
installed on the responder determine which tests the 923LTS performs, and each test’s
pass or fail criteria.
The Sage ALTS system can:
• Test transmission characteristics (e.g., loop voltage, ring voltage, call back
verification, connect time)
• Perform a 23 Tones test (e.g., attenuation distortion, 2-wire envelope delay distortion,
signal to noise, intermodulation distortion)
• Measure noise and delay (e.g., C-message, C-notched, absolute delay)
• Perform voice quality measurements (using PSQM)
• Perform 100 and 102 test line measurements
• Measure echo return loss
Automated Local Loop Tests
The Sage 923LTS performs tests (individually or as part of a test suite) based on the test
templates supplied by the Sage responder. These local loop test suites may include the
following:
• Ring voltage and frequency
• 3-Tone Gain Slope
• C-Measure Noise
• C-Notch Noise
• Return Loss
• 3kHz Flat Noise
• Phase and Amplitude Jitter
• Impulse Noise and Hits and Droupouts
• 23 Tones
• Level
• 23 Tone Loss
• Envelope Delay Distortion
• Signal-to-Noise
• Signal-to-Total Distortion
• Intermodulation Distortion
• Perceptual Speech Quality Measurement (PSQM)
Other Tests
The 923LTS may come equipped with other tests that do not require an ALTS responder.
They provide detailed results that can be viewed only on the 923LTS (i.e., results are not
collected in the ALTS database). Built-in tests may include:
100 Responder Noise Measurement
The 100 responder noise measurement operates with a type 100 quiet termination test
line.
102 Responder Loss Measurement
The 102 responder loss test operates with the type 100 milliwatt test line.
Perceptual Speech Quality Measurement (PSQM)
The built-in PSQM test operates with a Sage PSQM responder.
6 9100-0923-01 V2.0 SAGE INSTRUMENTS
The 923LTS Test Environment
Sage 950RTS
cable
cooper
Central Office
Customer’s
Network
Interface
RJ Connectors
Use the Sage 923LTS hand-held unit in the field to connect to the line being tested. The
Interface can be at a customer premises or at any two-wire access point. The 923LTS
can connect to customers served by:
• copper loop
• hybrid fiber coax loop
• wireless loop
Using menus on the 923LTS, the technician selects the test or test suite, and then
initiates a call to the farend responder (either the Sage 950RTS or 356Eplus). The Sage
responder contains instructions for the test sequence, and each test’s pass/fail
parameters. The selected test runs automatically. At the conclusion of the test, the
923LTS displays an immediate, overall pass/fail notification.
Using menus on the 923LTS, the technician can view the detailed results of each portion
of the test. During the test, the technician can listen to the dial tone, progress tones, and
other audible sounds. Typically, a test suite takes less than a minute to complete.
The 923LTS stores the results of the 10 most recent tests. Complete test data is stored
on the responder.
hybrid fiber coax
wireless loop
Responder
SAGE INSTRUMENTS 9100-0923-01 V2.0 7
8 9100-0923-01 V2.0 SAGE INSTRUMENTS
Battery: z z z z z z z z z
Section 2 Getting Started
Unpacking
In addition to this User’s Guide, the following items should arrive with your 923LTS
system:
• 923LTS hand-held unit
• AC adapter/power cord
• Connector cable (RJ-48 plug on one end, RJ-11 plug on the other end)
• Banana plug to alligator clip ground cable
Options
Additional items may be included with your shipment:
• RJ-48 to alligator clips cable/adapter
• RS-232 cable
• padded case with belt loop
• Sage Instruments 923LTS Automated Local Loop Testing System Quick
Reference Guide (a laminated card)
Charging the Batteries
WARNING: Use only the AC/DC transformer supplied with the 923LTS to charge the
batteries. Other transformers may damage the
923LTS, and void the warranty.
Initial Charge
The 923LTS comes with rechargeable batteries
installed at the factory. Before using the
923LTS for the first time, charge the batteries for two hours.
Do not turn on the 923LTS while the batteries charge for the first time.
3. Make sure the 923LTS is off (i.e., the display is blank and dark).
4. Plug the AC adapter power cord into a 110V AC outlet.
5. Plug in the cord from the AC adapter into the power port on the bottom of the
923LTS. Leave the power cord plugged in for at least two hours to allow the
batteries to fully charge.
Recharging
Each time the 923LTS is turned on, the system checks the batteries.
To fully recharge the battery:
1. Turn off the 923LTS.
Calibrating
Please wait . . .
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