Fluke TS 42DLX User manual

TS42DLX
Deluxe Test Set
Users Guide
PN 2460934
October 2005
©2005 Fluke Corporation. All rights reserved. Printed in China.
All product names are trademarks of their respective companies.

LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke Networks product is warranted to be free from defects in material and workmanship under
normal use and service. The warranty period for the mainframe is 3 years and begins on the date of purchase.
Parts, accessories, product repairs and services are warranted for 90 days, unless otherwise stated. Ni-Cad, Ni-
MH and Li-Ion batteries, cables or other peripherals are all considered parts or accessories. The warranty
extends only to the original buyer or end user customer of a Fluke Networks authorized reseller, and does
not apply to any product which, in Fluke Networks’ opinion, has been misused, abused, altered, neglected,
contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke Networks
warrants that software will operate substantially in accordance with its functional specifications for 90 days
and that it has been properly recorded on non-defective media. Fluke Networks does not warrant that
software will be error free or operate without interruption.
Fluke Networks authorized resellers shall extend this warranty on new and unused products to end-user
customers only but have no authority to extend a greater or different warranty on behalf of Fluke Networks.
Warranty support is available only if product is purchased through a Fluke Networks authorized sales outlet
or Buyer has paid the applicable international price. Fluke Networks reserves the right to invoice Buyer for
importation costs of repair/replacement parts when product purchased in one country is submitted for repair
in another country.
Fluke Networks warranty obligation is limited, at Fluke Networks option, to refund of the purchase price,
free of charge repair, or replacement of a defective product which is returned to a Fluke Networks
authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke Networks authorized service center to obtain return
authorization information, then send the product to that service center, with a description of the difficulty,
postage and insurance prepaid (FOB destination). Fluke Networks assumes no risk for damage in transit.
Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB destination).
If Fluke Networks determines that failure was caused by neglect, misuse, contamination, alteration, accident
or abnormal condition of operation or handling, or normal wear and tear of mechanical components, Fluke
Networks will provide an estimate of repair costs and obtain authorization before commencing the work.
Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be
billed for the repair and return transportation charges (FOB Shipping point).
THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR
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INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY
CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or
limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not
apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other
decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any
other provision.
4/04-3
Fluke Networks
PO Box 777
Everett, WA 98206-0777
USA

i
Table of Contents
Title Page
Introduction ......................................................................................................................................................1
Registration .......................................................................................................................................................1
Contacting Fluke Networks ..............................................................................................................................1
Safety Information ............................................................................................................................................2
Design Features .................................................................................................................................................2
Physical Characteristics .....................................................................................................................................2
Housing ......................................................................................................................................................2
Belt Clips .....................................................................................................................................................2
Line Cords ...................................................................................................................................................3
Battery ........................................................................................................................................................3
Speaker and Speakerphone Microphone .................................................................................................4
Audio Controls ...........................................................................................................................................4
Keypad Controls and Indicators ................................................................................................................4
Operation ..........................................................................................................................................................8
Talk/Monitor Switch ..................................................................................................................................8
Using the Test Set in Monitor Mode ........................................................................................................8
Using the Test Set in Talk Mode ...............................................................................................................9
Originating a Call ...............................................................................................................................9
Disconnecting a Call ...........................................................................................................................9
Answering a Call .................................................................................................................................9
Ground Start .......................................................................................................................................9
Data Safe Practices .....................................................................................................................................10
High Voltage Lockout Operation .............................................................................................................10
Configuring Your Test Set .........................................................................................................................10
Last Number Redial ............................................................................................................................10
Program Speed Dialing Numbers ......................................................................................................11
Storing a Number When in Monitor Mode (Preferred Method) .....................................................11
Storing the Last Number Dialed ........................................................................................................11
Storing a Number You are Calling ....................................................................................................11
Putting a Pause in a Stored Number .................................................................................................11
Dialing a Stored Number ...................................................................................................................11
Hook Flash Duration ...........................................................................................................................12
Pause Duration ...................................................................................................................................12
Exclusive Receive-Only Loud Speaker ................................................................................................12
Speaker Timeout .................................................................................................................................13
Factory Defaults ..................................................................................................................................13

TS42DLX Deluxe Test Set
Users Guide
ii
Maintenance ......................................................................................................................................................14
Replacing the Battery ................................................................................................................................14
Replacing or Relocating the Belt Clip .......................................................................................................15
Replacing the Line Cord .............................................................................................................................15
Removing the Old Line Cord ..............................................................................................................15
Installing a New Line Cord .................................................................................................................16
Accessories ..................................................................................................................................................17
Specifications .....................................................................................................................................................18

1
TS®42DLX Deluxe Test Set
Introduction
The TS42DLX Deluxe Test Set is an analog test
telephone used by installers, repair technicians and
other authorized personnel for the testing of copper
wire, voice subscriber lines. In addition to providing
standard off-hook operations, such as dialing and voice
communications, the TS42DLX Deluxe model has an
on-hook Monitor Mode, which allows the operator to
clip on and listen to the line without disturbing voice or
data signals that may be on the line. The test set has a
speaker for hands-free listening. The test set also has a
speaker-phone that allows two-way conversations
while freeing up the operator’s hands for other tasks.
In today’s telecommunications environment, many
subscriber lines carry data services. The data services are
in the same distribution facilities as voice services. It is
not always easy to tell the difference between data
and voice services. The TS42DLX Deluxe Test Set
incorporates unique patented circuitry that prevents
disruption of digital data services to which the test set
may have been unintentionally connected.
Registration
Registering your product with Fluke Networks gives
you access to valuable information on product updates,
troubleshooting tips, and other support services. To
register, fill out the online registration form on the
Fluke Networks website at www.flukenetworks.com/
registration.
Contacting Fluke Networks
www.flukenetworks.com
[email protected]
[phone]
• Australia: 61 (2) 8850-3333 or 61 3 9329 0244
• Beijing: 86 (10) 6512-3435
• Brazil: 11 3044 1277
• Canada: 1-800-363-5853
• Europe: [phone]
• Hong Kong: 852 2721-3228
• Japan: 03-3434-0510
• Korea: 82 2 539-6311
• Singapore: 65-6799-5566
• Taiwan: (886) 2-227-83199
• USA: 1-800-283-5853
• Anywhere in the world: [phone]
Visit our website for a complete list of phone numbers.

2
TS42DLX Deluxe Test Set
Users Guide
Safety Information
The following IEC symbols are used either on the test
set or in the manual:
WXWarning
Do not use the test set if it is damaged.
Before you use the test set, inspect the case.
Look for cracks or missing plastic. Pay
particular attention to the insulation
surrounding the connectors.
If this product is used in a manner not
specified by the manufacturer, the
protection provided by the product may be
impaired.
Design Features
Design features of the TS42DLX Deluxe Test Set
include:
• DataSafeTM in Monitor Mode
• High Impedance Monitor
• High Voltage Protection
• Last Number Redial up to 23 digits
• Microphone Mute
• PBX Pause Key
• Continuous Polarity Indication in Talk Mode
• Two-Way Speakerphone
• Receive-Only Loud Speaker
• Speed Dialing for ten 23 digit numbers
• Tone and Pulse Dialing
• Hook Flash
• Line Voltage Test
• Low Loop Current Test
• Low Battery Indication
• Relocatable Belt Clip Either End
• Field Replaceable Belt Clip
• Field Replaceable Battery
• Field Replaceable Line Cord
• Weatherproof Case
• High Voltage Lockout in Talk Mode
• Software Upgradable
Physical Characteristics
Housing
See Figure 1.
The TS42DLX Deluxe Test Set housing is made of high-
impact plastic. The test set provides rugged service and
withstand the rough handling and shocks normally
associated with field use. The housing permits
operation in bad weather, such as heavy rain and dust
storms.
Belt Clips
See Figure 1.
The belt clip may be attached at either or both ends of
the housing. It has a spring-loaded, locking clip that
assures a secure connection to belt loops and D-rings.
Both forward folding and backwards folding versions
of the belt clip may be installed on the test set. The test
set can be hung by the belt clip in one of two ways: (1)
with keypad and speakerphone facing the user for
convenient access or (2) with the transmitter facing the
user.
The belt clips may be replaced or relocated in the field.
See “Replacing or Relocating the Belt Clip” on page 15.
WWarning: Risk of personal injury. See the
manual for details.
Caution: Risk of damage or destruction to
equipment or software. See the manual for
details.
XWarning: Risk of electric shock.
.Earth ground
~Do not put products containing circuit
boards into the garbage. Dispose of circuits
boards in accordance with local
regulations.

3
Physical Characteristics
bfu01.eps
Figure 1. Physical Characteristics
Line Cords
See Figure 1.
The test has a field replaceable line cord. See
“Replacing the Line Cord” on page 15. The line cord is
attached through a rubber strain relief at the
transmitter end of the test set. Several different
configurations of line cords are available. See
“Accessories” on page 17 for model numbers.
Battery
See Figure 1.
WCaution
Use caution when handling batteries. Do
not allow the terminals to be shorted
together. Dispose of battery properly to
ensure contacts cannot short. Disposal may
be restricted by local laws.
The test sets battery compartment makes battery
replacement easy. See “Replacing the Battery” on page
14.
Note
If the test set fails to operate properly, first
replace the battery and retest before sending
the test set in for repair.
A 9 V alkaline battery must be installed for the test set
to operate. Do not use rechargeable batteries. The
battery performs two main functions:
• It powers the test set when on-hook.
• It supplies supplementary current to the speaker (if
on) when the test set is off-hook.
The speaker draws more current than any other circuit
in the test set. It follows that the battery will last longer
if the speaker is used in moderation.
mA
LO
LO HI
Vdc
POL POL
MUTE LO
BATT
mA
LO
TEST
FLASH
LNR
RCL
TS42
DELUXE

4
TS42DLX Deluxe Test Set
Users Guide
When the LO BATT LED begins flashing, the battery,
and thus the test set has anywhere from several hours
to several days of life remaining depending on how
often the speaker is used.
See “Replacing the Battery” on page 14 for instructions
on changing the battery.
If the test set stops working, remove the 9 V battery,
wait at least 40 seconds, then replace the battery. Use
the same battery if you know it is good or use a new
battery if you are not sure. This will reset the test set. If
it still doesn’t work, contact Fluke Networks Technical
Support.
Speaker and Speakerphone Microphone
See Figure 1.
The speaker and speakerphone microphone are
located on the keypad side of the test set. The speaker
draws more current than any other circuit in the test
set. The battery lasts longer if the speaker is used in
moderation.
Audio Controls
See Figure 2.
The three audio control keys are located on the inside
handle of the test set between the handset receiver
and the handset microphone. These controls allow the
operator to switch between the handset and speaker-
phone, to mute the active microphone, and to control
the volume of the received audio signal. Table 1
describes the audio control keys.
WWarning
Never hold the speaker against your ear
when it is on, or when turning it on or off.
Sounds emitted by the speaker can be loud
enough to damage your hearing.
Keypad Controls and Indicators
See Figure 3.
The keypad has 19 keys that are recessed into the
receiver end of the housing. The recessed bezel
provides physical protection for the keypad and helps
prevent accidental key press. Table 2 describes the keys
on the keypad and other indicators on the test set.
bfu02.eps
Figure 2. Audio Control Keys

5
Physical Characteristics
Table 1. Test Set Audio Control Keys
Key Description (see Figure 2)
MUTE The MUTE key is functional only when the test set is off-hook; it has no function when the unit is
on-hook. When the test set is off-hook and is being used as a handset, pressing the MUTE key will
shut off the handset’s microphone. This is useful in noisy environments such as near traffic. With
the mute on, ambient noise is not picked up by the test set’s microphone and therefore does not
end up in the operator’s ear. When the mute is on, it is easier to hear the person at the other end
of the line and easier to hear static or noise on the line. Pressing the MUTE key again will turn the
microphone on.
When the test set is off-hook and is in Speakerphone mode, pressing the MUTE key will shut off
the speakerphone’s microphone and will put the test set into a Receive-Only Loud Speaker mode.
This is a better mode for troubleshooting than Speakerphone mode. Pressing the MUTE key again
will turn the speakerphone microphone on.
The test set may be configured to operate exclusively in Receive-Only Loud Speaker mode. When
in this mode, the MUTE key has no effect on test set operation while in loudspeaker mode. See
“Configuring Your Test Set” on page 10.
When the mute is on, the MUTE LED will flash.
VOL
(Volume)
Pressing the VOL key switches the sound level of the test set’s active receiver between normal and
high volume. This is true in Monitor mode as well as Talk mode. The state of the VOL key is
preserved when the active receiver is changed. For example, assume the handset receiver is set to
high volume, if you switch to the speaker, it will also be set to high volume. The VOL key only
affects the volume of received signals. It does not affect the volume of transmitted signals.
SPKR
(Speaker)
The SPKR key is used to turn the test set’s speaker on and off. It functions in both Talk and Monitor
modes.
In Monitor mode, if the test set is being used as a handset, pressing the SPKR key will turn on the
speaker. This allows a user to monitor a line while working at a distance from the test set.
If the test set is off-hook and is being used as a handset, pressing the SPKR key will turn on the
Speakerphone. The handset microphone and receiver are shut off and the speakerphone
microphone and speaker are enabled. This mode is intended for two-way, hands-free
conversation.
You may also configure the test set to operate exclusively in Receive- Only Loud Speaker mode (see
“Configuring Your Test Set” on page 10.) For test sets configured as Receive-Only Loud Speaker; if
the test set is off-hook and is being used as a handset, pressing the SPKR key will turn on the
Receive- Only Loud Speaker. This mode is intended for listening to the line, hands free.

6
TS42DLX Deluxe Test Set
Users Guide
bfu03.eps
Figure 3. TS42DLX Deluxe Keypad and Overlay
7
FLASH TEST
1
PAUSE STORE
PROG TONE
PULSE
ABC DEF
GHI JKL
23
45MNO
6
PRS TUV
8WXY 9
0QZ
LNR
RCL
Table 2. Test Set Keypad Control and Indicators
Key or Indicator Description (see Figure 3)
Numeric
Keypad
The numeric keypad is used to dial telephone numbers and make function selections. The
numeric keypad includes 12 standard dialing keys including the star (∗) and the pound (#) keys.
The seven special purpose keys are described below.
RCL (Recall) key The RCL key is used for the storing and recalling of repertory dialing numbers. See “Program
Speed Dialing Numbers” on page 11.
FLASH (Hook-
Flash) key
The FLASH key is used to interrupt loop current for a timed duration. The FLASH key only
operates when the test set is off-hook. When pressed, the FLASH key will interrupt loop current
for the programmed hook-flash duration. See “Hook Flash Duration” on page 12.
LNR (Last
Number Redial)
key
The LNR key is used to redial the number most recently dialed. See “Last Number Redial” on
page 10.
PAUSE key The PAUSE key is used to insert a timed pause into a stream of dialed digits. The PAUSE key is
commonly used in combination with speed dial numbers that will be dialed out through a PBX.
The duration of the pause is user programmable. See “Pause Duration” on page 12.
STORE/PROG
key
The STORE/PROG key is used for storing speed dialing numbers and for programming special
test set functions.
-continued-

7
Physical Characteristics
TONE/PULSE The TONE/PULSE key is used to switch between tone and pulse dialing. The TONE/PULSE key is
only active when the test set is off-hook. Any time the test set goes off-hook, it is automatically
set to tone dialing. Once off-hook, pressing the TONE/PULSE key will change the dialing mode
to pulse dialing. Pressing the key again will switch back to tone dialing.
TEST The TEST key is used to perform two tests. One test is performed when the test set is on-hook
and the other test when the test set is off-hook. The results of the tests are meaningful only if
the unit’s test leads are connected to Tip and Ring of a subscriber line.
When the test set is on-hook, pressing the TEST key causes one of the tests to be executed. The
test set measures the dc voltage across Tip and Ring and then displays, by LED, whether the
voltage is high, low, or normal. The test is designed to indicate dc voltage on the line under test
(see “HI/LO Voltage LEDs” for a description of the indications). For example, the user runs the
test, expecting a normal battery voltage of -48 Vdc on a particular line, instead, the amber LED
flashes indicating the dc voltage is lower than a normal CO battery. This tells the user that they
may be connected to the wrong pair and should further investigate why the battery on the line
under tests is not normal.
The POL LEDs double as low loop current indicators. When off-hook and the TEST key is
pressed, if the current reading is below 23 mA, the LED corresponding to the line polarity will
flash for 5 seconds. If the loop current is normal, the LED will light solid. Low loop current may
indicate a problem on the line.
Light Emitting
Diodes (LEDs)
All LEDs are located on the keypad inside the recessed area.
MUTE LED The MUTE LED flashes when the mute function is activated.
LO BATT (Low
Battery) LED
The LO BATT LED flashes when the 9 V battery is nearly discharged. The low battery LED is active
only in operating modes that use the battery.
POL LED Notes
The TS42DLX Deluxe Test Set is not polarity sensitive, and will function in either polarity.
The POL LEDs will not light if the test set is on-hook or when the speaker is on.
When the test set is off-hook, one of the two Polarity (POL) LEDs will illuminate automatically to
indicate the dc polarity of the line. The green POL LED will light if the red test lead is connected
to the Ring (negative) side of the line and the black test lead is connected to the Tip (positive)
side of the line. The red POL LED will light if the test leads are reversed; that is, with the red test
lead connected to the Tip (positive) side and with the black test lead connected to the Ring
(negative) side.
LO mA LED. The POL LEDs double as low loop current indicators. When off-hook and the TEST
key is pressed, if the current reading is below 23 mA, the LED corresponding to the line polarity
will flash for 5 seconds. If the loop current is normal, the LED will light solid. Low loop current
may indicate a problem on the line.
Electronic
Ringer
The electronic ringer is enabled while the test set is on-hook.
-continued-
Table 2. Test Set Keypad Control and Indicators (continued)
Key or Indicator Description (see Figure 3)

8
TS42DLX Deluxe Test Set
Users Guide
Operation
The test set has two basic modes of operation: Talk
mode and Monitor mode. Talk mode is used for off-
hook operations (such as dialing verification, automatic
number identification, and audio quality verification).
Monitor mode is for audio monitoring of the Tip and
Ring pair while on-hook. In Monitor mode, the test set
has a high input impedance, which allows monitoring
of the line without disrupting conversations or data
signaling if present.
WCaution
When testing circuits that are close to a
battery source, clipping onto a line may case
loud pops in the receiver. Holding the
receiver tightly against your ear may cause
acoustic shock. The test set is designed to
rest comfortably on the shoulder with some
space between the receiver and the ear. It
should be used in this position when
working close to a battery source.
Shorting the Tip and Ring leads together
while connected to a data line will disrupt
data on the line.
Talk/Monitor Switch
See Figure 1.
The TALK/MONITOR switch is a rocker switch located
on the side of the test set. The Tposition puts the test
set into Talk mode. The Mposition puts the test set into
Monitor mode.
Using the Test Set in Monitor Mode
While in Monitor mode, the test set is always on-hook.
The test set draws no direct current from the line and it
transmits no signals to the line. In this mode, the test
set has a high AC input impedance, which allows
listening for audio signals without disrupting
conversations or data signaling that might exist on the
line.
HI/LO VDC
(high/low Vdc)
LEDs
When the test set is on-hook and the TEST key is pressed, the unit measures the DC voltage
across Tip and Ring and indicates the voltage level as follows:
Voltage Range Indication
0 V to 2 V LO Vdc LED lights for 5 seconds
2 V to 42 V LO Vdc LED blinks for 5 seconds
42 V to 53 V (Normal CO battery voltage) Both the LO Vdc and HI Vdc LEDs flash once
53 V to 140 V HI Vdc LED blinks for 5 seconds
Above 140 V HI Vdc LED lights for 5 seconds
If the indicated voltage causes either LED to light solidly for 5 seconds, the voltage has been
measured at a level which the test set will not allow off-hook operation.
If the test set is placed in Talk mode on a loop with more than 140 Vdc, the test set will lock out
and the HI Vdc LED will remain lit until the test set is placed in Monitor mode or the voltage
drops below 140 V.
Table 2. Test Set Keypad Control and Indicators (continued)
Key or Indicator Description (see Figure 3)

9
Operation
Either the handset receiver or the speaker can be used
to monitor a line. In the Monitor mode, the test set is
typically used to perform one or more of the following
procedures:
• Verification that a line is idle when looking for a
line to borrow.
• Listening for noise on the line.
• Hunting for tracer tones.
• Testing for dc voltage on the line by using the TEST
key.
Using the Test Set in Talk Mode
In Talk mode, if talk battery is present, the test set will
go off-hook. When off-hook, the test set operates like
a standard telephone; it is typically used to verify the
proper operation of a voice telephone line or to
establish temporary communications on a “borrowed
pair”.
Originating a Call
1 Set the Talk/Monitor switch to M.
2 Clip the test set to Tip and Ring of a subscriber
loop.
3 Monitor (listen to) the line to verify it is idle.
4 If not idle, disconnect the test set from the line.
5 If the line is idle, set the Talk/Monitor switch to T.
6 If talk battery is present, the test set will go off-
hook and draw dial tone.
Note
The test set will not go off-hook if the line
voltage exceeds 140 V.
7 Dial the desired number.
Disconnecting a Call
To disconnect a call, set the Talk/Monitor switch to Mor
remove the test leads from the line.
Answering a Call
1 If a ringing signal is received, set the Talk/Monitor
switch to T.
2 If talk battery is present, the test set will go off-
hook and draw dial tone.
Note
The test set will not go off-hook if the line
voltage exceeds 140 Vdc.
Ground Start
Ground start lines are typically found on PBX
installations. To activate an idle ground start telephone
line, do the following:
1 Set the Talk/Monitor switch to M, and connect the
test leads to Tip and Ring of the ground start line.
With a third wire, temporarily short the Tip side of
the line to earth ground. A wire with an alligator
clip at each end is often used for this. Do not allow
clips to short network connections.
2 With the short-to-earth in place, set the Talk/
Monitor switch to T. When dial tone is received,
remove the third wire from earth. The circuit is
now ready for dialing.

10
TS42DLX Deluxe Test Set
Users Guide
Data Safe Practices
Always monitor the line for an audible signal before
attempting to go off-hook to draw dial tone. To detect
data signals within the human audio range, such as
produced by voiceband modems and subrate DDS
transceivers, you must listen to the line using the test
set’s audio monitoring capability. If you hear the
telltale hiss of a voice band modem or low frequency
data transceiver, do not move the TALK/MONITOR
switch to T. It will go off hook and it will interfere with
the voice band modem or data transceiver. To avoid
this, try another line or wait until the line is idle.
When going from pair to pair searching for tracer tone
or dial tone it is best to connect the test set to Tip and
Ring of the pairs. Avoid the practice, either in Talk or
Monitor mode, of clipping one lead of the test set to
ground, and using the other lead to search for tracer
tone or dial tone on a block. This may create an
electrical imbalance on a data line that will disrupt
service. Once you find the voice line you are searching
for then it is OK to test Tip to ground or Ring to ground
on that line.
Be careful not to short the test leads together if you are
connecting to a data line (or any line for that matter),
as this could bring down the service.
It is best to put the test set in Monitor mode when
troubleshooting a line, searching for capacitance kicks,
RF signals, craft provided tones, etc.
High Voltage Lockout Operation
The TS42DLX Deluxe is designed for use by Outside
Plant and Central Office technicians in environments
where analog voice lines co-exist with lines that carry
high DC voltage.
Accidentally going off-hook on a line carrying a high
DC voltage can damage the power supply feeding the
line. To prevent this from occurring, the TS42DLX
Deluxe provides an automatic high voltage lockout
function. When a TS42DLX Deluxe is connected to a Tip
and Ring pair with its TALK/MONITOR switch in the
TALK position, it will measure the voltage on the line
prior to going off-hook. If the measured voltage
exceeds 140 Vdc, the test set will lockout, preventing
itself from going off-hook.
The high voltage lockout condition is indicated by a
solidly lit HI Vdc LED. In the event of a high voltage
lockout, the TALK/MONITOR switch should be set to M
and the test set leads should be carefully removed from
the line.
WCaution
Do not short the test leads to each other
while it is connected to a line carrying high
voltage.
There is no way for the operator to override a high
voltage lockout. Lines with voltages exceeding 140 Vdc
do not carry analog voice services.
Configuring Your Test Set
Last Number Redial
In the Tone or Pulse dialing mode, the last number
dialed can be automatically redialed by pressing the
LNR key after going on-hook and then back off-hook.
To redial a number, the LNR key should be the first key
pressed after going back off-hook.
If, after going off-hook, any dialing key is pressed, the
LNR memory will be cleared and the value of the
pressed key will be the first number stored in the
cleared memory.
The PAUSE key is considered a dialing key. If pressed, it
is stored in the redial memory, taking up one of the 23
digit slots.
In tone dialing mode, the dialing keys that are
permitted to be stored in LNR memory include
1,2,3,4,5,6,7,8,9,0,*,# and PAUSE. If the star (∗) and
pound (#) keys are pressed in pulse mode they will be
ignored. The star (∗) and pound (#) keys will not be
redialed when the test set is in pulse mode even if the
redial memory includes star (∗) and pound (#).

11
Operation
Program Speed Dialing Numbers
While in Monitor mode, the test set allows the storage
of ten speed dialing numbers in ten memory locations
(0 through 9). Each location will store up to 23 digits. If
an attempt is made to store more than 23 digits, only
the first 23 are stored. The PAUSE key is accepted as a
dialing digit when storing numbers.
Storing a Number When in Monitor Mode
(Preferred Method)
1 Set the Talk/Monitor switch to M.
2 Press RCL.
3 Using the dialing keypad, enter the number to be
stored.
4 Press the STORE/PROG key.
5 Press one of the number keys (0 through 9) to
select the desired memory location. The test set
gives a confirmation tone.
Note
If a non-dialing key is pressed while
programming a number sequence, it will be
ignored. Pressing RCL a second time will exit the
Programming mode.
Storing the Last Number Dialed
If you dial a number then go on-hook and you decide
you want to save that number in speed dialing
memory, do the following:
1 Set the Talk/Monitor switch to M.
2 Press RCL.
3 Press LNR (Last Number Redial).
4 Press the STORE/PROG key.
5 Press one of the number keys (0 through 9) to
select the desired memory location. The test set
gives a confirmation tone.
Storing a Number You are Calling
1 Connect the test set to a working telephone line,
set the TALK/MONITOR switch to TALK, and
receive dial tone.
2 Dial the number.
3 Press the STORE/PROG key.
4 Press one of the number keys (0 through 9) to
select the desired memory location.
Putting a Pause in a Stored Number
Note
Each time the PAUSE key is pressed, it counts as
one dialing digit.
In some situations it may be necessary to put a pause
between digits of a stored number, as when accessing a
trunk through a PBX that requires a 9 to get an outside
line. You can do this by pressing the PAUSE key at the
point where the pause is required. For example, to
store the number 9-555-1234, with a pause between
the 9 and 5, enter 9[PAUSE]5551234. When the
number is dialed out, there will be a pause between
the 9and 5. The duration of a pause is user
programmable (see “Pause Duration” on page 12). You
can insert a longer pause by pressing PAUSE more than
once.
Dialing a Stored Number
1 Connect the test set to a working telephone line.
2 Set the TALK/MONITOR switch to T.
3 When the test set goes off-hook, press RCL
(RECALL) and then the number key (0 through 9)
for the memory location. For example, to dial a
number stored in location 5, press RCL and then 5.
The number will be automatically dialed.

12
TS42DLX Deluxe Test Set
Users Guide
Hook Flash Duration
When the test set is off-hook, pressing the FLASH key
causes a timed interruption of the loop current to
occur. Some PBX setups or telephone office switches
may use this signal to put a call on hold or to activate
some special function. One flash is generated for each
press of the key.
To change the flash duration value:
1 Set the Talk/Monitor switch to M.
2 Press the STORE/PROG key.
3 Press the FLASH key.
4 Press a number key to select a hook flash time.
Invalid entries are ignored. The test set gives a
confirmation tone when the entry is accepted.
Pause Duration
The PBX Pause feature lets you insert a delay into
speed dialing numbers. This is required when dialing
out through a system that provides a second dial tone
(such as PBX). Different PBX devices may require
different pause durations to allow enough time for the
second dial tone to be returned. The pause duration
can be programmed.
To change the PBX Pause duration:
1 Set the Talk/Monitor switch to M.
2 Press the STORE/PROG key.
3 Press the PAUSE key.
4 Press a number key to select a pause time. Invalid
entries are ignored. The test set gives a
confirmation tone when the entry is accepted.
Exclusive Receive-Only Loud Speaker
Under certain usage scenarios (such as hunting for dial
tone), a test set operator may prefer to have the test
set’s speaker remain in Receive-Only mode (muted)
while transitioning in and out of Talk mode. To
accommodate these procedures, the test set may be
configured to operate with the speaker exclusively in a
Receive-Only mode.
To enable/disable Exclusive Receive-Only Loud Speaker
mode:
1 Set the Talk/Monitor switch to M.
2 Press the STORE/PROG key.
3 Press the MUTE key. The test set gives a
confirmation tone.
Key Hook Flash Time
1 100 ms
2 200 ms
3 300 ms
4 400 ms
5 500 ms
6 600 ms (default)
7 700 ms
8 800 ms
9 900 ms
0 1000 ms
Key Pause Time
1 2 seconds
2 3 seconds
3 4 seconds (default)
4 5 seconds

13
Operation
Speaker Timeout
The speaker draws more current from the battery than
any other circuit on the test set. The battery will be
drained quickly if the speaker is left on continuously. To
extend battery life, the test set has a timeout function
that automatically turns off the speaker when the test
set is on-hook. A timer is started whenever the test set
is put on-hook. As long as the test set is off-hook the
timer will not start.
If the test set is used as a handset in Monitor mode and
if the test set’s receiver has been set to high volume,
the battery will be asked to deliver enough current to
drain the battery sooner than desired. So the same
timeout that is applied to the speaker is applied to the
high volume state in Monitor mode. If the test set is in
Monitor mode with the receiver’s volume set to high
volume, after the timeout the test set will revert to low
volume. When the test set is in Monitor mode with the
speaker off and with the receiver volume set to low, it
draws very little current from the battery.
The speaker timeout duration is programmable while
on-hook and 240 minutes (4 hours) while off-hook. The
off-hook timeout cannot be changed. Remember, the
longer the selected timeout duration the shorter the
battery life.
To change the speaker timeout duration:
1 Set the Talk/Monitor switch to M.
2 Press the STORE/PROG key.
3 Press the SPKR key.
4 Press a number key to select a duration. Invalid
entries are ignored. The test set gives a
confirmation tone when the entry is accepted.
Factory Defaults
The Restore Defaults function lets you restore all
programmable features to their original factory
settings. This function does not clear stored telephone
numbers. The defaults are as follows:
• Pause Duration: 4 seconds
• Hook Flash Duration: 600 ms
• Speaker Timeout: 2 minutes
• Exclusive Only Loud Speaker: Disabled
To restore the factory default values:
1 Set the Talk/Monitor switch to M.
2 Press the STORE/PROG key.
3 Press the pound (#) key. The test set provides a
confirmation tone when the entry is accepted.
Key Speaker Timeout Duration
1 2 minutes (default)
2 5 minutes
3 10 minutes
4 20 minutes
5 30 minutes
6 40 minutes

14
TS42DLX Deluxe Test Set
Users Guide
Maintenance
WWarning
Disconnect clips from any metallic
connections before performing any
maintenance. Read all instructions
completely and understand possible hazards
to end user if repairs are not performed
properly.
Batteries are hazardous to handle. Do not
allow the terminals to be shorted together.
Severe burns or explosion can result if not
handled properly. Dispose of battery
properly to ensure contacts cannot short.
Disposal may be restricted by local laws.
WCaution
Do not use CRC Cable Clean®or any similar
chlorinated solvent on the test set. Doing so
will damage the test set.
Replacing the Battery
See Figure 4.
To replace the 9 V battery:
WCaution
Be sure to account for all hardware
removed. Loose or missing hardware could
create a hazard for the end user. Be sure to
replace the battery with a good 9 V alkaline
or lithium battery or the test set will not
operate properly.
1 Disconnect the test set from the line and place on
a flat work surface with battery cover up.
Note
Battery cover screws are retained in the cover
and will not come all the way out of the battery
cover.
2 Using a Phillips screwdriver, loosen only the four
screws attaching the battery door cover to the
back of the test set.
bfu04.eps
Figure 4. Battery Replacement
3 Remove the battery door cover. Do not access or
handle printed circuit or other areas of the test set
other than the battery.
4 Remove the old battery from the test set and
properly discard. Make sure the terminals cannot
short.
5 Insert a new 9 V battery into the test set. When
inserting batteries, observe the proper polarity.
6 Check that all sealing surfaces are clean and mate
properly for water resistant seal.
7 Place the battery door cover on the test set and
fasten the four screws securely. Do not over
tighten screws. The battery door screws should be
torqued to a maximum of 0.904 N-m or 8 in-lb.

15
Maintenance
Replacing or Relocating the Belt Clip
See Figure 5.
The belt clip assembly is field replaceable in the event
of damage or prolonged wear. It also can be relocated
to one of two locations. To order a replacement belt
clip, contact your local Fluke Networks authorized
distributor. See “Accessories” on page 17 for belt clip
model numbers.
To replace or relocate the belt clip assembly:
1 Using a Phillips screwdriver, remove the screw that
secures the belt clip to the test set housing at the
keypad end.
2 Remove the old belt clip and replace with a new
one. Secure the belt clip assembly to the test set
housing with the original screw.
bfu05.eps
Figure 5. Belt Clip Replacement
To install a second belt clip:
1 Remove the blank insert from the test set.
2 Place the belt clip on the test set and secure with
the screw supplied with the belt clip.
3 Place the blank insert in the belt clip slot that is not
being used.
Replacing the Line Cord
A worn out or damaged line cord can be replaced by
the user. To order a replacement line cord contact your
local Fluke Networks authorized distributor. See
“Accessories” on page 17 for line cord model numbers.
WWarning
Read all instructions completely and
understand possible hazards to end user if
repairs are not performed properly.
Disconnect test set clips from any metallic
connections before performing this
maintenance.
Removing the Old Line Cord
To remove the old line cord:
Notes
Battery cover screws are retained in the cover
and will not come all the way out of the battery
cover.
Be careful not to damage or pinch the speaker
wires, printed circuit faces or insulating
materials.
Be sure to account for all hardware removed.
Loose or missing hardware could create a
hazard for the end user.
1 Using a Phillips screwdriver, loosen only the four
screws attaching the battery door cover to the
back of the test set (See Figure 4).
2 Remove the battery door cover (see Figure 4) and
battery from the test set.
3 Loosen the two screws that hold the line cord to
the PCB (see Figure 6).
4 Using needle nose pliers or one of the line cord
clips, remove the two screws and washers from the
line cord connectors.
-continued-

16
TS42DLX Deluxe Test Set
Users Guide
5 Using needle nose pliers, remove the plastic clip
(see Figure 7) that holds the line cord strain relief
in place.
6 Slip the line cord screw lugs (see Figure 8) out
through the hole in the end of the housing.
bfu06.eps
Figure 6. Removal/Installation of Line
Cord Screws
bfu07.eps
Figure 7. Removal/Installation of Plastic Clip
Installing a New Line Cord
To install a new line cord on either model:
1 From the outside of the housing, slide the screw
lugs of a new line cord through the hole in the
end of the test set housing. Make sure the crimp
barrel offset side of the screw lugs is up (see
Figure 9) and that the line cord screw lugs are flush
against the circuit board.
Note
Do not over tighten screws. Over tightening will
strip the plastic.
2 Fasten the red wire lug to the PCB (Ring) with
screw and washer (see Figure 8).
3 Fasten the black wire lug to the PCB (Tip) with
screw and washer (see Figure 8).
4 Insert the plastic clip over the line cord strain relief
at the base of the test set housing (see Figure 7)
and press tightly into place. Inspect all work to
ensure no pinched wires or areas where weather
resistance and safe operation is affected.
5 Reinstall the battery. Observe the proper polarity.
6 Place the battery door cover on the test set and
fasten the four screws (see Figure 4). Tighten
screws to a maximum torque of 0.904 N-m or 8
in-lb.
9 VOLT