3M 965DPS User Manual
Instruction Manual
June 2005
78-8130-7429-7-F
Dynatel™ 965DSP Series
Subscriber Loop Analyzers
Includes Spectrum Analyzer (optional)
and Active ADSL Modem (optional)
2
Welcome to the Instruction Manual for the 3M™
Dynatel
™
965DSP Series of Subscriber Loop
Analyzers. The 965DSP Series includes the 965DSP,
965DSP/ADSL, 965DSP/SA and 965DSP/ADSL/SA
Loop Analyzers.
This document will give you a brief overview of the
products, a description of their test functions, and
some technical hints on how to find problems on
telecommunications cables.
3
Table of Contents
Out of the Box .......................................................4
Front Panel .............................................................5
Control Keys .....................................................6
Editing ...............................................................6
Function Keys ...................................................7
Welcome ................................................................8
Setup (Country, Language, Units, Clock Format,
Set Clock, Set Beep, Autotest Limits,
Printer, Power Down Timeout, Edit Wire
Gauge, Voltage Termination, User Info) ...
9
Functions
Contrast/Backlight ..........................................20
Help ................................................................21
High Voltage ...........................................21
Voltage ............................................................22
Current ............................................................23
Resistance .......................................................24
Soak Test .........................................................25
Toolbox ...........................................................26
Self Calibrate ..........................................27
Load Coils ............................................... 28
Kick Test .................................................29
Stored Results .........................................30
ADSL Results .........................................33
Caller ID .................................................36
Special Resistance ..................................38
Ground Resistance ..................................39
Ohms/Distance ........................................40
K-Test ......................................................41
Ringers ....................................................50
Splice Locate ..........................................51
Opens ..............................................................52
Tone ................................................................55
RFL ................................................................58
DSL ................................................................71
TDR ................................................................93
dB (Loss, Noise, Long. Balance
Wideband Loss, Level Trace) ..................
106
Autotest .........................................................110
Talk Set Setup ...............................................136
Care and Maintenance .......................................137
Specifications .....................................................141
POTS Criteria (US and Canada) ........................143
Self-Test Board ..................................................144
Warranty Information .........................................146
4
Out of the Box
What you will find when you unpack the shipping box:
• 3M™ Dynatel™ 965DSP Series Subscriber Loop
Analyzer
• Carrying case
• NiMH battery pack (inside the 965DSP)
• Spare battery holder
• Test Leads (red/black pair, blue/yellow pair, green)
• Shorting strap
• AC charger
• Power cord
• Instruction manual
• Quick card and Warranty card
• Self-test board
Visually inspect all components. If any component
is missing or appears damaged, do not install and
call customer service at 1-800-426-8688 for a
replacement product.
The Dynatel 965DSP comes in the carrying case and
should remain in the case to give extra protection
from shock and the environment.
A NiMH battery pack is already installed in the
965DSP. You may need to charge the battery before
using the unit. Please see Care and Maintenance
section. The Spare Battery Holder holds six “AA”
alkaline batteries and should only be used if the
NiMH battery pack is discharged.
The 965DSP comes with 5 test leads: red/black,
blue/yellow and green. The Shorting Strap is only
used in RFL mode.
The AC charger will convert 110 or 220 Vac into
the 12 Vdc used for charging the 965DSP. A North
American 110 Vac Power Cord is provided with
the unit. The AC charger is meant for charging
the NiMH battery pack only. Do not use the AC
charger to power the 965DSP during normal
operations.
Additional information is also found in the 965DSP
help screens. For Technical Service, Warranty or
Repair questions call: 800 426 8688 in the US or
Canada, or contact your local 3M Representative.
Communication Markets Division
3M Telecommunicat
ions
6801 River Place Blvd.
Austin, TX 78726-9000 USA
5
Screen
The 965DSP screen is a graphical LCD (Liquid
Crystal Display) that gives high resolution for
viewing text and graphics. The screen format is
similar to the following for most functions.
Test Leads
The Test Lead icons are shown on each of the
measurement screens. Each lead points to a color dot
on the front label that corresponds to the actual test
lead. The test leads have the labels “RNG” (ring),
“GND” (ground) and “TIP” (tip) for the US and
Canada. These labels correspond to “B”, Ground, and
“A” for other countries.
Keypad
The 965DSP Keypad has twelve yellow and red
“Control Keys” and twelve blue “Function Keys”.
6
Control Keys
Use the red and yellow keys to control the actions and
the setup of the 965DSP and its functions. The active
control keys for each function are shown at the bottom
of the corresponding 965DSP screen.
Use the [Return] key to return to a
previous step in a function.
Use the [Contrast] key to adjust the
contrast or to turn the backlight on or off.
Use the [Save] key for saving Autotest results,
Single Trace TDR waveforms, and ADSL
Modem link information (/ADSL option only).
Use the [On/Off] key to turn the 965DSP
on or off (see also “Power Down Timeout”
on page 16)
Use the [Tab] key to select between
different options.
Use the [Setup] key to change the setup of
any function.
Use the [Help] key to get help with any
screen.
Use the [Enter] key to accept changes or
move to the next step in a function.
Use the [Up] and [Down] keys to
scroll to different menu options or
insert and delete characters when
editing.
Use the [Left] and [Right] keys to
move between different options or
move the TDR cursor.
Editing
Use the following keys when editing:
Use to insert a space to the left of the cursor.
Use to delete the character above the cursor.
Use to add a ‘dash’ in a telephone number or a
minus sign for signal levels or temperature.
Use to add one second delay for dialing.
7
Function Keys
Use the blue keys to select the different test functions
in the 965DSP. The blue keys become number or
letter keys when editing.
Use the [Voltage] key to measure DC or
AC voltage.
Use the [Current] key to measure
loop current.
Use the [Resistance] key to measure
resistance.
Use the [Toolbox] key to access: Self-Cal,
Load Coils, Kick Test, Ringers, Special and
Ground Resistance, K-Test, Ohms/Distance,
Stored Results, Caller ID, and Splice Locate.
Use the [Opens] key to find the distance to
an ‘open’ circuit.
Use the [Tone] key to send tones for
pair identification or measuring loss.
Use the [RFL] key to find the distance
to a resistance fault on a pair.
Use the [DSL] key to access: ISDN datalink,
ADSL modem (/ADSL option only) and DSL
parametric measurements/Spectrum Analyzer
(/SA option only).
Use the [TDR] key to display the Time
Domain Reflectometer.
Use the [dB] key to measure Loss, Noise,
Longitudinal Balance, Wideband Loss, or
Level Trace.
Use the [Auto] key to perform a series of tests
on an Active, Inactive or Wideband pair.
Use the [Talk Set] key to dial numbers or
to place a phone call on a working pair.
L
8
Welcome Screen
This is the screen that you see when you first turn
on the 965DSP. It shows the model name, installed
options, serial number, copyright year, software
version, and the selected country. The battery symbol
in the upper right-hand corner of the display gives an
indication of the approximate battery capacity. Each
bar represents one-quarter of the full capacity. If
the spare battery holder with the alkaline batteries
is installed in place of the NiMH battery pack, the
battery level will not be monitored and the battery
symbol will not be visible in the display.
Control Keys
Press [Setup] to go to the general setup screen from
the Welcome screen.
Use the [Up] and [Down] keys to highlight a menu
item: Country, Language, Units, Clock Format, Set
Clock, Set Beep, Autotest Limits, Printer, Power Down
Timeout, Edit Wire Gauge, Voltage Termination or User
Info. Press the [Enter] key to select the highlighted item.
Use [Return] to return to the Welcome Screen without
making changes.
9
Country
Use the Country setup to configure the 965DSP
for a specific country. Selecting a new country will
configure the 965DSP with the setups for language,
units, clock format, wire gauges, and cable types for
that particular country.
Use the [Up] and [Down] keys to highlight a
Country. Use [Enter] to select a country. You will
be warned about changing country-specific default
values and asked to confirm or cancel your selection.
Language
Use the Language setup to change
only the
language in the 965DSP. Country-specific default
values are not affected.
Use the [Up] and [Down] keys to highlight a new
language. Use [Enter] to accept the changes and
return. Use [Return] to return to the Welcome Screen
without making changes.
10
Use the [Up] and [Down] keys to highlight the option.
Use the [Tab] key to select the parameter for each unit
of measurement.
Distance: Feet or Meters. This affects all distances
displayed in the 965DSP.
Degrees: Fahrenheit or Centigrade. This affects all
temperatures used in the 965DSP.
Filter: C-Message or CCITT
. This affects the filter
used in the Noise function. Use the C-Message filter
in the US and Canada. Use the CCITT (also called
“Psophometric”) filter in all other countries.
The 965DSP also features a dBrnP filter for noise
tests in New Zealand. To set the default noise filter to
dBrnP, set Filter option to CCITT and Country to New
Zealand. This filter is used only in New Zealand; for
all other countries, the CCITT option uses a dBrnOp
filter. Noise test results will be displayed in dBrnP as
shown.
Units
Use the Units setup to change the units of
measurement for the 965DSP:
11
TDR: Vp (Velocity of Propagation) or m/µS (meters
per microsecond). This affects the TDR “velocity of
propagation.” Use “Vp” in the US and Canada.
Use “m/µS” in other countries.
Use the [Enter] key to accept any changes and
return. Use the [Return] key to return to the
Welcome Screen without making changes.
Clock Format
Use the Clock Format setup to change the format of
the clock. The clock is used for the timestamp and
datestamp in stored results.
Use the [Up] and [Down] keys to highlight either the
date or time. Use the [Tab] key to select the format
parameter.
Date: m/d/y (month/day/year) or d.m.y (day.month.
year). The m/d/y format is used in the US and
Canada. The d.m.y format is used in most other
countries.
Time: 12 hours or 24 hours. This affects the number
of hours displayed in the clock. The 12 hour clock
(with a.m. and p.m.) is used in the US and Canada.
The 24 hour clock format is used in most other
countries.
Use [Enter] to accept the changes and return. Use
[Return] to return to the Welcome Screen without
making changes.
12
Set Beep
Use the Set Beep setup to turn the key beeps on or off.
Use the [Tab] key to toggle between on or off. Use
the [Enter] key to return.
Set Clock
Use the Set Clock setup to change the date and time.
Use the [Tab] key to select either the date, time, or
a.m./p.m. Use the [Left] and [Right] keys to select
the digit to change. Use the blue keys to enter the
values. Use the [Up] and [Down] keys to select
a.m. or p.m. Use [Enter] to accept the changes and
return. Use [Return] to return to the Welcome Screen
without making changes.
13
Autotest Limits
Use the Autotest setup to change the pass/fail
threshold values for the Inactive Pair, Active Pair
and Wideband Autotests.
Use the [Up] and [Down] keys to highlight the
desired Autotest parameters to modify. Press the
[Enter] key to select the highlighted choice or press
the [Setup] key to restore the factory default values
for the selected Autotest.
If Wideband is selected, a list of the available
wideband services is displayed. Use the [Up] and
[Down] keys to select the wideband service to
modify. Press the [Enter] key to select the
highlighted choice or press the [Setup] key to restore
the factory default values for the selected service.
14
When the Inactive Pair, Active Pair or specific
Wideband service is selected, the Threshold Limits
screen will be displayed. This screen displays a list
of measurements performed in the selected Autotest
and the corresponding pass/fail limits for each
measurement.
The limits indicate the values at which the
measurement result passes (OK), is marginal (Yield
Sign) or is unacceptable (Stop Sign). The lower limit
threshold value is shown in the box on the left, the
upper limit in the box on the right.
If the test result value passes or is unacceptable, the
pass/fail result will correspond to the symbol under
the box (either Stop or OK). If the test result value is
between the upper or lower limit, the pass/fail result
will be marginal (Yield Sign).
Use the [Up] and [Down] keys to highlight the
desired test. Use the [Tab] key to move the cursor
to the limit value and enter the new value using the
blue keys. Press the [Setup] key to restore the factory
default values for the selected test. Press the [Enter]
key to accept the changes or the [Return] key to
ignore all changes and return to the Threshold Setup
screen. If invalid limits are entered, a warning screen
will be displayed. Press the [Enter] key to return to
Edit Limits screen and make appropriate changes to
the limits.
15
Printer
Use the Printer option to set the printer output type.
Use the [Up] and [Down] arrow keys to select either
graphics or text output, then press the [Enter] key to
accept your selection and return to the Setup menu.
A custom Loss Frequency (sometimes known as
the “Nyquist frequency”) can be set for use in the
Wideband Autotest. The custom Loss Frequency edit
screen is accessed by pressing the [Setup] key from
the startup screen, selecting Autotest Limits, then
Wideband. Press the [Enter] key to select a service
type. Select Loss Frequency, then use the [Tab] key
to edit. Enter the frequency value in KHz with the
blue numeric keys. Use the [Up] or [Down] arrow
keys to add or remove digits.
16
Power Down Timeout
To change the power down timeout, press the [Setup]
key from the Welcome screen, then select Power
Down Timeout. Use the [Up] and [Down] arrow keys
to select the desired timeout period, then press the
[Enter] key to set that period as the default. After a
period of inactivity equal to the default period, the
unit will beep, then automatically power down.
17
Edit Wire Gauge
This function allows you to set up custom wire
gauges to be used wherever the set uses a wire gauge
menu. Press the [Setup] key from the Welcome
screen, use the [Down] arrow key to scroll to Edit
Wire Gauge, and then press the [Enter] key to edit.
Name the custom configuration Custom 1 or Custom
2 by pressing the [Up] or [Down] arrow key. Use
the [Tab] key to select the values to be edited. Use
the [Left] and [Right] or [Up] keys to select the digit
to change. Use the blue numeric keys to enter the
values. Use [Enter] to accept the changes. Press the
[Return] key to return to the Setup menu without
making changes.
You can select this custom cable from any selection
menu (such as RFL), as shown.
18
Voltage Termination (supported countries only)
This option allows you to select the input impedance
of the 965DSP digital voltmeter. Press the [Setup]
key from the Welcome screen, use the [Down] arrow
key to scroll to Voltage Termination, and then press
the [Enter] key to select.
The input impedance of the internal 965DSP
voltmeter is normally 1Mohm. However, some
legacy systems use voltage measurement systems
with input impedances of 100Kohms. This option
is provided to maintain measurement compatibility
with those systems. Use the [Tab] key to select the
desired termination and [Enter] to select.
19
If 100Kohm termination is selected, the 965DSP
will display ‘100K’ on the voltage measurement
screen as indicated below.
User Info
This selection allows you to add optional additional
information to your saved records. Press the
[Setup]
key from the Welcome screen, use the [Down]
arrow key to scroll to User Info, and then press the
[Enter] key to select.
Enabling User Info will cause the 965DSP to add
an extra user-editable screen during the results
save process. This screen has edit boxes for the
technician identification (‘Tech ID’) and the current
Job Number. These fields appear as part of the
Saved record when printed or viewed in PCLink.
20
Contrast/Backlight
Press the [Contrast] key to display the contrast
screen. Use the [Up] and [Down] arrow keys to
adjust the contrast. Press the [Contrast] key again to
turn the backlight on or off. Use the [Enter] key to
return.
Use the [Tab] key to select ‘ON’ or ‘OFF’ and
[Enter] to save your selection. Once the User Info
option has been changed, the changes remain in
effect until you explicitly change them again.
21
Help
Press the [Help] key at any time in any screen to get
help on that function.
Press the [Enter] or [Return] key to return to the
previous screen.
High Voltage
This screen indicates that a high voltage (120 Vac/
Vdc or greater) has been detected between the test
leads when not in the Voltage Mode. The 965DSP
has opened an internal relay to protect itself
from damage. Use standard safety practices for
disconnecting the test leads since high voltage may
be present.
Press the [Enter] key to restart the 965DSP.
22
Press the [Tab] key to move to the next test lead
configuration. The highlighted reading is “live” and
the non-highlighted readings are the last values.
Press the [Enter] key to switch from the DC to the
AC voltage measurement.
Voltage
This function first measures and displays the DC
voltage between the red and black test leads.
Press the [Tab] key to move to the next test lead
configuration.
Press the [Enter] key to switch from the AC to the
DC voltage measurement.
Function Keys
23
This screen indicates that a high current has been
detected between the test leads and that the 965DSP
has opened an internal relay to protect itself
from damage. Use standard safety practices for
disconnecting the test leads. Press the [Enter] key
to restart the 965DSP. Fix problems before restarting
the current measurement again.
Current
This function measures the DC current flowing
through a 430 Ohm resistor inside the 965DSP.
Connect the red and black leads to the pair to
measure loop current.
If the Current is greater than 110 mA, you will see
the following ‘Current Warning’ screen:
24
Resistance
This function first measures the resistance between
the red and black test leads.
Press the [Tab] key to move to the next test lead
configuration.
The “V” in the upper right corner of the screen
indicates that the resistance measurement
compensates for C.O. voltage on the line.
Press the [Enter] key to remove the voltage
compensation. Use this technique only if you
have first determined there is no DC voltage on
the pair (by using the Voltage function). The noncompensated measurement is slightly faster, but it
is not as accurate if there is voltage on the line.
The resistance measurement can be affected by
moisture on the test lead clips or terminal face. For
the most accurate measurement make sure that these
areas are dry.
25
Soak Test
Use the Soak Test function to continuously measure
the non-compensated resistance tip to ground and
ring to ground simultaneously.
Press the [Right] arrow key to access the Soak test
from the Resistance screen. Connect the red and
black leads to an inactive pair. Connect green to
shield or ground. Use the [Right] arrow key to
refresh the measured resistance to the “Snap Shot”
area. This measurement will not be accurate if
there is foreign voltage or battery cross on the line.
26
Toolbox
The “Toolbox” menu contains a selection of
functions depending on the options equipped in the
unit and the Country Code selected during Setup
(i.e. Caller ID is available only in North America and
ADSL Stored Results is only available on /ADSLequipped models). The menu displays only the
functions for which the unit is equipped. Only six
menu items are visible at any time. Use the [Up] and
[Down] arrow keys to move to the desired function,
then press the [Enter] key to accept the choice.
Note: The last item in the Toolbox menu
(Maintenance) is reserved for use only during
Factory setup and service of the 965DSP.
27
Self-Calibration
Use this function to calibrate the 965DSP anytime the
outside temperature changes by more than 35°F (20°C),
after changing the batteries, or anytime the battery pack
completely discharges. Calibrate the 965DSP at the
same temperature at which it will be used.
Note: Initiate a self-calibration prior to the very
first use of your 965DSP.
You will see the following screen as soon as you
select Self-Calibration from the Toolbox.
Short the red, green, black and yellow leads together
when prompted, then press [Enter] to continue.
The screen shows “Self-Calibration Complete” when
the calibration is done, or “Self-Calibration Failed”
if the calibration fails. In this last case, check the test
lead connections and try again.
28
Load Coils
This function counts up to five load coils on the pair and
determines the distance to the first one. The distance
measurement requires that you specify the wire gauge
of the pair. This is done in the Load Setup screen. Use
the [Up] and [Down] arrow keys to highlight the correct
wire gauge. Use [Enter] to accept that choice.
The Load Coils screen will appear and an hour glass
will be visible at the bottom of the screen during the
measurement. When complete, the load coil count will
be visible in the box on the right and the distance to the
first load coil will be visible in the box labeled “Nearest
Load”. If no load coils are present the count will be 0 and
“Not Found” will be visible in the “Nearest Load” box.
After the test is done, press the [Enter] key to repeat the
load coil count. Press the [Return] key to return to the
Toolbox menu or press the [Setup] key to change the
wire gauge.
It is not necessary to have any particular length of
cable before the first load coil, but you must have at
least 3000 feet (1000 meters) of cable after each load
coil for the Load Coil function to count properly.
You may also use the TDR function to find the distance
to the first load coil on the pair.
Indicates
total number
of load coils
detected
29
Kick Test
Use the Kick Test function to continuously measure
the voltage, resistance and capacitive length on tipring, ring-ground, and tip-ground. Connect the red
and black leads to the selected pair. Connect green
to shield or ground.
Press the [Tab] key to move to the next lead
configuration. Press the [Return] key to return
to the Toolbox menu or press the [Setup] key to
change the cable type.
30
Stored Results
Use this function to view previously stored results of
the Autotest or TDR function. If no results have been
stored, “No Results Stored” will be visible on the
screen. If one or more test results have been stored,
the ID number for each will be displayed.
Press the [Setup] key to display the Print screen.
Press the [Enter] key to print all of the results. Press
the [Tab] key to print the results of the selected ID.
Press the [Return] key to return to the main Results
screen without printing.
Print Results
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