Transcript 1. dia - Elektronika

ELEKTR
NIKA
Telephone & Exchange Tester ETET 30
ETET 30 is a central office installed touch screen controlled
instrument intended to identify the cause of subscriber complaints.
The operator can test:
● The circuits of exchange
● The operation of DSLAM
● The parameters of line
● The subscriber’s phone set
● The noise spectrum
Test groups:
● User Side Tests
● Exchange Side Tests
● Modem Detection
● ADSL Test
● VDSL Test
For details click on the corresponding keys.
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NIKA
User Side Tests of ETET 30
The user side tests are intended:
● To test the access line when
the subscriber’s phone is in
on-hook state.
● To test the subscriber’s phone
set with his assistance.
Selectable Modes:
● DMM
● TDR
● Spectrum analyser
● Test Call
For details click on the corresponding keys.
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User Side DMM Measurements
Voltage Measurements
● AC, DC voltages between wire A and GND
● AC, DC voltages between wire B and GND
● AC, DC voltages between wires A and B
Insulation Resistance Measurements
● Between wire A and GND (RAE)
● Between wire B and GND (RBE)
● Between wires A and B (RISO)
with normal and reversal polarity
Capacitance Measurements
● Between wire A and GND (CAE )
● Between wire B and GND (CBE )
● 2 Pole capacitance between the wires
● Load capacitance CL
Automatic Test Sequence
● Pressing the Auto key ETET 30
performs the previous measurements.
Continuity Measurement
● In this mode ETET 30 performs loop resistance measurement.
If the loop resistance lower than a preset threshold acoustic warning is provided.
Test results exceeding the designated limits are marked with red color.
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User Side TDR
In case of a cable break or short circuit the first task is to identify the location of
fault. First of all the operator has to know that the fault is inside the building of
central office or it is somewhere else on the line. The purpose of the User Side TDR
is to test the access line.
Two modes are provided:
● Normal mode for the
localization of shorts
and brakes.
● Long time mode for the
localization of loose
contacts.
ELEKTR
NIKA
The purpose of the User Side
Spectrum measurement is to
get information about the
disturbing voltages on the line.
In that mode ETET 30 can
detect the presence of ADSL,
ADSL 2+ or VDSL modem at
the user’s home when the
DSLAM is disconnected from
the subscriber’s line.
Spectrum Analyser
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User Side Test Call
In this mode the subscriber’s telephone set
can be tested with his assistance.
The operator should call and communicate
with the subscriber.
Loop Test
Ask the subscriber to keep the line and wait.
Start loop resistance and loop current
measurements with the Loop Test key.
Loudness Test
Send test tone with the Send 800 Hz key.
After a while ask the subscriber’s opinion
about the loudness.
Dial Test
Sometimes the subscribers complain that
they are connected to another subscriber
instead of the one they wanted to call. The
purpose of that test is to identify the reason
of the malfunction. Press the Dial Test key.
Ask the subscriber to press the numbers on
his key board after each other.
ELEKTR
NIKA
Exchange Side Tests of ETET 30
ETET 30 provides:
● The test of ringing, register and
line feed circuits of exchange.
● The location of wiring problems
inside the building of central
office.
Selectable Modes:
● DMM
● TDR
● Ringing Test
● Register Test
For details click on the corresponding keys.
ELEKTR
NIKA
Exchange Side DMM Measurement
Voltage Measurements
● AC, DC voltages between wire A and GND
● AC, DC voltages between wire B and GND
● AC, DC voltages between the wires
Loop Current Measurements
● When the loop is closed.
Automatic Test Sequence
● Pressing the Auto key ETET 30
performs the previous measurements.
Continuity Measurement
● In this mode ETET 30 performs loop
resistance measurement. If the loop
resistance lower than a preset threshold
acoustic warning is provided.
Test results exceeding the designated limits are marked with red color.
ELEKTR
NIKA
Exchange Side TDR
In case of a cable break or short circuit the first task is to identify the location of
fault. First of all the operator has to know that the fault is inside the building of
central office or it is somewhere else on the line. The purpose of Exchange Side
TDR is to test the wiring inside the building of central office.
Two modes are provided:
● Normal mode for the
localization of shorts
and brakes.
● Long time mode for the
localization of loose
contacts.
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NIKA
Ringing Test
In this mode the operator can dial up any phone number using a service line.
Typical applications:
● The subscriber complains
that the loudness of ringing
is not enough. To check the
proper operation of exchange
the operator dials the user’s
phone number and ETET 30
measures the ringing voltage.
● The operator would like to use
ETET 30 as a normal phone.
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Sometimes the subscribers
complain that they are
connected to another subscriber
instead of the one they wanted to
call. The purpose of that test is
to identify the reason of the
malfunction.
In this mode ETET 30 sends a
test call from the subscriber’s
line to the service line and
indicates the appearance of
ringing voltage.
Register Test
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Function:
In that mode ETET 30 can
detect the presence of ADSL,
ADSL 2+ or VDSL modem at
the user’s home when the
DSLAM is disconnected from
the subscriber’s line.
Principle of operation:
The modem detection is based
on spectrum measurement.
ETET 30 recognizes the hand
shake signals rhythmically
transmitted by the modem.
Modem Detection
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ADSL Modem Tests
By means of the “Golden Modem” of ETET 30 we can check the proper operation
of DSLAM.
ETET 30 offers two test options:
● Synchronization Test
providing information on the
training process and the actual
state of line. In this mode there
isn’t data transfer between the
local and public network.
●
Automatic Test providing
detailed information on the
quality of data transfer
between the local and public
network. The actual connection
profile and the LAN parameters
can be modified before starting
the test.
For details click on the corresponding keys.
ELEKTR
NIKA
ADSL Synchronization Test
When the synchronization test mode is selected the Modem Status display appears
and ETET 30 automatically starts the synchronization. The training process takes
a while. During this time the actual modem status information is displayed.
The status indicator shows the
actual state of synchronization:
RED
The line is in Idle State
(No synchrony)
GREEN (blinking)
The training is in progress
GREEN (Continuous)
The synchronization is completed
Finishing the training process
ETET 30 provides detailed line
diagnosis.
ELEKTR
NIKA
Automatic ADSL Test
When the automatic test mode is selected the Modem Status display appears and ETET 30
automatically starts the synchronization. The training process takes a while. During this time
the actual modem status information is displayed.
xDSL connection Indicator
RED
No synchrony
GREEN (blinking)
The training is in progress
GREEN (Continuous)
The synchronization is completed
Link IP Status Indicator
RED
There is no data transfer
YELLOW
Trying to establish data transfer
GREEN
Successful data transfer
ETET 30 provides:
● Ping & Trace test
● Detailed line diagnosis
● Browsing possibility
For details click on the corresponding key.
ELEKTR
NIKA
Editing of ADSL Profile
ETET 30 supports the synchronization in all ADSL modes and connection types.
Supported ADSL Modes
As a default ETET 30 supports
the synchronization in all ADSL
modes but the operator can
disable one ore more of them.
Selectable connection types:
In ADSL mode ETET 30
supports five connection types.
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NIKA
The IP parameters of the
modem and the controller
PC can be modified here.
LAN Settings
ELEKTR
Ping & Trace Test
NIKA
The ping tests can manage:
● the URL format
● IP address format
The number of PING
requests and the size of
PING packets can be set.
To call the Trace Test window click on the Trace key
ELEKTR
NIKA
The Trace Test can manage: ●
the URL format
● IP address format
Trace Test
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NIKA
Line Diagnosis
In this mode ETET 30 provides detailed line diagnosis in graphic and numeric forms.
ELEKTR
NIKA
VDSL Modem Test
By means of the “Golden Modem” of ETET 30 we can check the proper operation
of DSLAM.
ETET 30 offers two test options:
● Synchronization Test
providing information on the
training process and the actual
state of line. In this mode there
isn’t data transfer between the
local and public network.
●
Automatic Test providing
detailed information on the
quality of data transfer
between the local and public
network. The actual connection
profile and the LAN parameters
can be modified before starting
the test.
For details click on the corresponding keys.
ELEKTR
NIKA
VDSL Synchronization Test
When the synchronization test mode is selected the Modem Status display appears
and ETET 30 automatically starts the synchronization. The training process takes
a while. During this time the actual modem status information is displayed.
The status indicator shows the
actual state of synchronization:
RED
The line is in Idle State
(No synchrony)
GREEN (blinking)
The training is in progress
GREEN (Continuous)
The synchronization is completed
Finishing the training process
ETET 30 provides detailed line
diagnosis.
ELEKTR
NIKA
Automatic VDSL Test
When the automatic test mode is selected the Modem Status display appears and ETET 30
automatically starts the synchronization. The training process takes a while. During this time
the actual modem status information is displayed.
xDSL connection Indicator
RED
No synchrony
GREEN (blinking)
The training is in progress
GREEN (Continuous)
The synchronization is completed
Link IP Status Indicator
RED
There is no data transfer
YELLOW
Trying to establish data transfer
GREEN
Successful data transfer
ETET 30 provides:
● Ping & Trace test
● Detailed line diagnosis
● Browsing possibility
For details click on the corresponding key.
ELEKTR
NIKA
Editing of VDSL Profile
ETET 30 supports the synchronization in all VDSL modes and connection types.
Supported ADSL Modes
As a default ETET 30 supports
the synchronization in all VDSL
modes but the operator can
disable one ore more of them.
Selectable connection types:
In VDSL mode ETET 30
supports three connection types.
ELEKTR
NIKA
The IP parameters of the
modem and the controller
PC can be modified here.
LAN Settings
ELEKTR
Ping &Trace Test
NIKA
The ping tests can manage:
● the URL format
● IP address format
The number of PING
requests and the size of
PING packets can be set.
To call the Trace Test window click on the Trace key
ELEKTR
NIKA
The Trace Test can manage: ●
the URL format
● IP address format
Trace Test
ELEKTR
NIKA
Line Diagnosis
In this mode ETET 30 provides detailed line diagnosis in graphic and numeric forms.