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© 2004 SAGE INSTRUMENTS
9100-0925-01 V1.2
30
Using the 925VST
This section describes using the Sage 925VST to conduct telephony tests. See Getting
Started on page 9 for instructions about initial setup, charging the batteries, and loading
responder test phone numbers.
Field Testing Prerequisites
The 925VST is ready to perform tests in the field when:
•
The batteries are charged,
•
Responder phone numbers are stored or available for manual entry, and
•
Appropriate farend responders are available.
Connecting to the Line Under Test
In most cases, you will connect the 925VST to a test access point downstream from the
IAD, residential gateway, or IP/Digital Phone.
RJ Connections
RJ Connections
RJ Connections
RJ Connections
Use the supplied cords to connect the 925VST to
the line being tested (either the cord with RJ
connectors or the cord with alligator clips).
Connections are the same whether you are
running in responder mode or director mode.
To use the RJ connection cord:
1. Plug the RJ-48 (the larger end) into the bottom of the 925VST.
2. Plug the appropriate RJ-xx end into the customer’s connection.
•
For a 2-wire connection, plug the RJ-11 end into the jack for the line to test.
•
For a 4-wire connection, plug the RJ-22 end into the base of a telephone where
the handset would typically be plugged in. The telephone base should be
connected to the jack for the line to test.
Ground Connection
Ground Connection
Ground Connection
Ground Connection
Connect the 925VST to ground if at least one of the following is true.
•
The line being tested uses ground start signaling
•
A noise-to-ground measurement is part of the test sequence
•
Accurate tip & ring to ground voltage measurements are desired
ground start
connection
power cord and
battery
RJ48
Bottom Ports on the 925VST