Sage 923lts, Руководство пользователя

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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