B+K precision 1045B User manual

TELEPHONE
PRODUCT
TESTER
U.S. Patent No. 4,577,072

-
TEST INSTRUMENTSAFEN
I WARNING 1
An electrical shockcausing 10milliampsof current to pass through the heart will stop most human heartbeats. Voltage as low as 35 volts dc or
acrms should be considered dangerous and hazardous since it can produce alethal current under certain conditions. Higher voltages pose an even greater
threat because such voltage can more easily produce a lethal current. Your normal work habits should include all accepted practices that will prevent
contact with exposed high voltage, andthat will steercurrent away from your heart in caseof accidental contact with ahigh voltage. You will significantly
reduce the risk factor if you know and observe the following safety precautions:
Do not insert fingers or any metal objects into either TELEPHONE
TEST JACK.Whenever tester is on. 52 VDC is present at thejacks. Also, ringing
voltages of
45 Vrms (LOW) or 100V rms (NORMAL)are present atTELEPHONE TEST JACK #1, the telephone cord, and the telephone during the
ring test. If telephone cord insulation is cracked, nicked, split, or any bare wire is exposed, the cord should be replaced immediately to prevent electrical
shock. Do not operate this or any other electrical equipment with protective covers removed. Voltages of
325 VDC and 120VAC are present inside the
Model
1045B TelephoneProductTester; servicing of this orany other electrical instrument should be performed only by qualified electronics technicians
trained to work in the presence of high voltage.

TABLE OF CONTENTS
Page
TEST INSTRUMENT SAFETY
.......... inside front cover
INTRODUCTION
.......................... 2
.....
FEATURES ..................... ... 3
SPECIFICATIONS ......................... 4
CONTROLS AND INDICATORS ................. 6
................... OPERATING INSTRUCTIONS 8
.............................
CordTest 9
Dial Test ................... ... ........ 11
Telephone Light Test
....................... 11
Ring Test
............................. 13
Voice Level Test ......................... 13
Voice Quality Test ........................ 1.5
Two-Line Telephone Test .................... 15
Cordless TelephoneTest ..................... 16
Answering Machine Test
..................... 16
FaxMachineTest ......................... 17
Page
................. Automatic Telephone Dialer Test I8
........
The Telephone Product Tester As A Demonstrator 18
...
TELEPHONE TROUBLESHOOTING CONSIDERATIONS 19
..................
BLOCK DIAGRAM ANALYSIS 20
.......................... MAINTENANCE 23
........................ Opening The Tester 23
......................... Fuse Replacement 23
..................... Line VoltageConversion 23
................... Pulse Dial Leakage Jumper 23
............................ Calibration 24
........................ Closing The Tester 25
.............
WARRANTY SERVICE INSTRUCTIONS 29
................ LIMITED ONE-YEAR WARRANTY 30
............. MOUNTING THE INSTRUCTION CARD 31

INTRODUCTION
The B+K PRECISION Model 10458 TelephoneProduct Tester per-
forms a wide variety of golno-go tests on standard and cordless tele-
phones (both pulse and tone dial), two-line telephones, answering
machines, fax machines, and automatic dialers. It can be operated by a
non-technical person interested in finding out if a problem is caused by
the telephone product or the telephone system.
The Telephone Product Tester checks the telephone's cords, ringing
mechanism, dialing mechanism,mouthpiece, earpiece, and audioampli-
fier.
A second telephone is not necessary for the testing of a telephone,
but a second telephone jack is supplied for the testing of fax machines
and answering machines.
Many telephone problems occur because of a faulty cord; therefore,
it is advisable to test cords first.
If any cord is found to be defective, the
other tests should still be carried out after replacing the defective cord.
It is advisable to perform all tests on each telephone product tested.
This tester verifies performance of telephone products to be used in
normal operating telephone systems. Occasionally, due to variations in
telephone systems, a telephone might check out good on this tester yet
still fail to work with the telephone system to which it is connected. If
this happens, a substitute telephone can be used to verify that the
telephone system is operating or the
B+K PRECISION Model 1042
Telephone Line Analyzer can be used to test the telephone line.

FEATURES
TESTS ALL TELEPHONE PRODUCTS: RINGTEST:
Checks corded telephones, cordless telephones, two-line telephones, Two ringer levels selectable: NORMAL and LOW (worst case). LOW
answering machines, fax machines, and automatic dialers. level is approximately the minimum value that the telephone company
guarantees; NORMAL level is the typical level.
COMPLETETESTING:
Goodhad indication for every function of standard telephone
VOICE LEVELTEST:
Indicatorlightswhen voicelevelmeets or exceedsminimumacceptablelevel.
SINGLETELEPHONE NEEDED: POLARITYTEST:
Only the telephone being tested is needed for all telephone tests. Tests automatic polarity circuit in telephone.Assures that telephone will
work if polarity of telephone line is reversed.
EASYTO USE:
Consumeroriented to allow unsupervised use by customers. Instructions
TEST:
are short and easy to follow.For familiarsounds,tester provides dial tone testing every
andring signalthat are identical to those suppliedby telephone exchange.
SECONDTELEPHONE CAPABILITY:
CORDTEST:
Permits voice quality of telephone to be checked when a second tele-
phone is available. Fax machines and answering machines can also be
Checksfor shorts, broken orintermittent conductors,and badconnectors. tested.
DIALTEST: TELEPHONE LIGHTTEST:
Decodes dialing signals for both pulse and tone dial telephones and Power is applied to telephone jack to test operation of the internal light
indicates number dialed. Slow sequence display releases approximately in a "Princess" type telephone or any telephone with abuilt-in light.The
two numbers/second so that even rapidly dialed numbers can be easily power is applied to the light only when the SINGLEIAUX switch is in
read. Can also test Redial and Memory dial function of telephone. For the SINGLE (out) position and the telephone being tested is connected
tone dial telephones, indicator lights when level is sufficient. to TELEPHONE TEST JACK 1.

SPECIFICATIONS
GENERAL
TelephoneLine Simulation:
Single or two telephone operation.
DC LineVoltage:
52 V +15%, 1.5 k!2 Source Impedance
Current:
28 mA nominal (off hook).
Auxiliary Line Voltage:
5 to 7 VAC, 60 Hz tooperate light in telephone.
Polarity Test Switch:
Reverses telephone line polarity with momentary switch.
SingleIAux(Two-Line)Switch:
Permits testing two-line telephones
Voice/Dial Level Indicator:
Illuminates for levels greater than 0.1 V rms.
CordTests:
Tests both telephone line and handset 2-wire and 4-wire modular
cords for shorts or continuity.
Reset:
Setsdisplay to "0" and removes dial tone when activated. Shuts off
ring signal when activated.
RING SOURCE
Frequency:
20 Hz.
RingFrequencyAccuracy
+.I%
Voltage (2 selectablelevels):
Low - 45 V rms 25%; Normal - 100 V rms 25%; with lREN
(ringer equivalent number) load.
Ring SineWave Purity
Distortion 510%; with IREN load
Off-HookDetection:
DC line voltage less than 25 volts inhibits ring.
Ring Cycle:
After pushbutton selection of voltage level; approx. 2 seconds on,
4 seconds off.
AUTOMATIC NUMBER IDENTIFICATION
DTMF (DualTone MultipleFrequency):
Tolerance:
Accepts tones within +1.5% of nominal.
Tone Duration For Identification:
50m Sec minimum.

SPECIFICATIONS
Interdigit Time:
50m Sec minimum.
AmplitudeResponse (CompositeTone):
0.25 V rms (-10 dBm).
ROTARY DETECTION:
Rate:
8 to 20 pulseslsec.
BreakTime:
30m Secminimum.
MakeTie:
15mSec minimum.
InterdigitTime:
315m Sec minimum.
RecognitionTime (endof digit):
lOOm Secminimum.
PulseDialing Leakage Detect: (On- Hook)
Preset to 1
mA (r 50 W1 On-Hook Impedance). User selectable to
2 mA, 3 mA, 4 mA, or
5 mA via internaljumper.
Manual Dialing (pulsetype and DTMF):
Detects and decodes number dialed by telephone under test.
AutomaticDialer and Redial:
Pulse me: Verifies numbers dialed.
DTMF:
Uses a delay circuit to verify numbers dialed with
rates up to I0 digitslsecond. Digits are displayed
at a rate of 2lsecond for easy verification.
DISPLAY
Single 0.43" 7 segment LED. Delay feature for high speed dialer.
Display blanks momentarily to mark display update.
TONE CHARACTERISTICS
Dial Tone:
352 Hz and 440 Hz nominal.
Dial Tone Accuracy:
+I%.
Dial Tone Amplitude(s):
0.05 V rms nominal.
Ringback Tone:
440 Hz and 20 Hz.
Ringback ToneAmplitude:
0.026 V rms nominal.
OPERATINGTEMPERATURE:
0" to +50°C.
POWER:
100, 120,220,240VAC +lo%,50160 Hz, 25 VA.
PHYSICAL SIZE:
HWD (3-318"x 10-318" x 11-7/16") (8.6cm x 26.4cm x 29.1 cm).
WEIGHT:
4.4 Pounds (2 kg).
5

CONTROLSAND INDICATORS
1 2 3 4
- AUX REV -
13 12 11 10 9 8 7 6 5
Figure 1. Controls And Indicators
6

CONTROLSAND INDICATORS
Refer to Fig. I
1. POWER Switch. Switches tester ON and OFE
2. DIALED NUMBER DISPLAY. Single-digit display. Indicates
when power is applied to the tester. Indicates number telephone
actually dialed. Display blinks briefly each time a new digit is
displayed.
3. LOW RINGER LEVELIRESETButton. Rings telephone under
test at low voltage level. Shuts off ring signal if ringing has been
initiated. Resets DIALED
NUMBER DISPLAY circuitry and
causes a "0" to be displayed. Also turns off dial tone.
4. NORMAL RINGER LEVEL Button. Rings telephone under test
at normal voltage level.
5. POLARITY NORMIREV Test Button. Reverses polarity to test
telephone's steering diodes.
6.. SINGLEIAUX Button. Selects main or auxiliary line in two-line
telephones.
7. TELEPHONE TEST JACK #2. Input for second telephone for
testing answering machines and voice quality.
8. TELEPHONE TEST JACK #I. Input for telephone product to be
tested.
9. VOICEIDIALLEVEL OK Indicator. Lights when dialing tone is
above minimum level. Lights on voice peaks when level is above
minimum required level.
10.
HANDSET CORD TEST Jacks. Inputs for testing detachable
handset cord.
11. AUX LINEIndicator. Indicates condition of two auxiliary wires in
detachable cord. The two auxiliary wires carry power to a light in
certain telephones, and a second telephone line in two-line tele-
phones.
12. SINGLE LINE Indicator. Indicates condition of two main tele-
phone wires in detachable cord. For most telephones, only two
phone wires are used.
13. TELEPHONE CORD TEST Jacks. Inputs for testing detachable
telephone cord (telephone to wall).

OPERATING INSTRUCTIONS
f~ dla 6x p-.
TELEPHONE PRODUCT TESTER
Ill, \'
~--
Ill
RINGER LEVELS
DISPLAY NORMAL
TELEPHONECORD 'OR'
TESTS
HANDSETCORD
TUEPHONE TEST JACKS POWER
SINGLE AUX
LlNE LlNE
Note: Insert only one cord
at a time.
Figure 2. Cord Test Set Up.

OPERATING INSTRUCTIONS
CORD TEST
squeeze the cordto check for intermittent continuity or shorts. If the
(refer to Fig.
3.)
indicators go out or flicker, the cord should be replaced.
This test is used to check a DEWCHABLEhandset (handset to desk
3. Next, use the HANDSET CORD testjacks to test the handset cord
unit) cord or telephone (telephone to wall) cord (see Fig.
3.). IF CORD in the same manner as the telephone cord.
IS NOT DETACHABLE AT BOTH ENDS, ITCAN NOT BE TESTED;
GOON TOTHE OTHER TESTS.
If the telephone cord is found to be
in proper working order, any problem is now isolated to the telephone or
the telephone company's equipment. If a cord is defective, other tests
should still be carried out (after replacing the defective cord) to insure
that there is no problem with the telephone itself. Only one cord can be
tested at a time. Do not plug in both cords at the same time. Handset and
telephone cords are not interchangeable and should not be plugged into
the wrong jacks.
1. TogglethePOWER switchON.TheDIALED NUMBERDISPLAY
indicator lights when the Telephone Product Tester is on.
2. To test the telephone cord (seeFig. 3. for example of cord type) for
continuity or shorts, plug both ends of the cord into the TELE-
PHONE CORD TEST JACKS. If the SINGLE LINE OK indicator
lights, the cord is good for normal telephone operation. If the AUX
OK indicator
also lights, the cord is good for lighted telephone
operation ortwo-line telephones. The SINGLE LINE OK indicator
shows the condition of the two wires in the cord used for dialing,
ringing, and conversation. The AUX LINE OK indicator shows the
condition of the two wires in the cord that carry power to the night
- . -
light in a telephone or the auxiliary line in two-line telephones. If
the indicators fail to light, the cord is defective. Gently bend and
Figure 3. Telephone Cord and Handset Cord.
Wall
Jack
Wall
Jack

OPERATING INSTRUCTIONS
VOICEIDIAL LEVEL OK Indicator DIALED NUMBER DISPLAY Press the RESETROW RINGER LEVEL
lights each time a digit is shows number button to clear the DIALED NUMBER
pressed on a tone dial telephone. telephone has dialed. DISPLAY circuitry and display a
0.
\ I /
POWER
LOW NORMAL
TYOHE TEST 4EKS POWER
0.0
I Plua teleohone to be tested into 0
I i
Figure 4. Dial Test Set Up.

OPERATING INSTRUCTIONS
DIALTEST
(refer to Fig. 4.)
This test applies to both tone dial and pulse dial (non tone dial)
telephones. If tones are heard at the earpiece when digits are pressed, the
telephone is a tone dial model; if a series of clicks are heard, it is apulse
dial model. When numbers are dialed faster than
2 digitslsecond, the
tester stores up to 16 digits in its memory and releases them at
2
digitslsecond. If you wish to clear the DIALED NUMBER DISPLAY,
press the RESETILOW button. This will clear the memory and place a
"0" on the display.
1. TogglethePOWER switchON.TheDIALEDNUMBER DISPLAY
indicator lights when the tester is on.
2. Release the SINGLEIAUX switch to SINGLE.
3. Plug the telephone that you wish to test into TELEPHONE TEST
JACK #I. If
a telephone is plugged intoTELEPHONE TEST JACK
#2, make sure that the telephone is hung up (on hook) throughout
this test.
4. Hang up telephone under test (place it on hook).
5. Pick up the telephone under test (take it off hook) and listen for the
dial tone. If no dial tone is present, this indicates that the telephone
will not operate properly and should be repaired or replaced.
6. Press or dial each digit (be sure to use all 10digits). With tone dial
telephones, it is also possible to test the
"*" and "# keys. The "*"
key displays a decimal point (.) and the "#" displays a bar (-) on the
DIALED NUMBER DISPLAY. Each digit should appear on the
DIALED NUMBER DISPLAY in the same order as dialed. The
display blinks momentarily each time a new digit is displayed so
that, if the same digit is dialed two or more times in arow (example:
177-2266), each individual digit can be distinguished. Also, each
time anumber is pressed on atonedial telephone, the VOICEIDIAL
LEVEL OK indicator should light. If the numbers donot appear on
the DIALED NUMBER DISPLAY in the correct order (or the
VOICEDIAL LEVEL OK indicator does not light each time a
number is pressed on a tone dial telephone), the telephone's dialing
system is not operating properly and the telephone should be re-
paired or replaced.
7. It is also possible to test the redial feature of a telephone. To do so.
perform steps 2 through
5 of the DIAL TEST and then perform the
redial feature for the telephone under test. Each digit should again
appear on the DIALED NUMBER DISPLAY in the same order as
dialed. If all the digits do not appear in the same order as they were
dialed, the telephone's redial function is not operating properly and
the telephone should be repaired or replaced.
TELEPHONE LIGHTTEST
Power is brought to the auxiliary line pins of TELEPHONE lTST
JACK #1 to permit testing of the internal light in "Princess" type
telephones or any telephone with a built-in light. When such a phone is
plugged into JACK #1 and the SINGLEIAUX switch is in the SINGLE
position, the light should be lit unless it is defective.

OPERATING INSTRUCTIONS
RESET/ NORMAL RINGER LEVEL
LOW RINGER LEVEL button
button
I
.
at= rrx FEE--:"
3
TELEPHONE PRODUCT %TER
/ 10458
r
RINGER LEVEL
prwER ::F!R
RE:p
DISFUV NORMAL
\
f
TELEPHONE CORD TELERIMIE TEST JKKS POWER
'OR' TESTS
HANDSETCORD I VOICEIDIAL 1 2 ISNELE NORM^
SlffiLE AUX LEVEL
BB a BM
- AUX REV -
LINE UNE
00.0 DEz!zzl
L ,
Plug telephone to be tested into
, /
TELEPHONE TEST JACK #I
\
"\d. /
I I
Figure 5. Ring Test Set Up.

OPERATING INSTRUCTIONS
RINGTEST
(refer to Fig. 5.)
DO NOT HOLD THE TELEPHONE NEAR YOUR EAR DURING
THIS TEST, ringing might be loud enough to cause hearing damage if
the telephone rings next to your ear.
1. TogglethePOWER switchON.TheDIALEDNUMBERDISPLAY
indicator lights when the tester is ON.
2. Plugtelephone that you wish totest intoTELEPHONE TESTJACK
#I and hang it up (place it on hook). Make sure the SINGLEIAUX
switch is in the SINGLE position.
3. Press the RESETILOW RINGER LEVEL button and the telephone
should ring until it is picked up (taken off hook). If the telephone
rings in this step, the telephone's ringing device is functioning
properly and this completes the RING TEST. If the telephone does
not ring in this step, go on to step
4.
4. If the telephone did not ring in step 3, press the RESETbutton, then
press theNORMAL RINGER LEVELbutton. Thetelephoneshould
now ring until it is picked up (taken off hook). If the telephone still
does not ring, the telephone's ringing mechanism is not functioning
properly and the telephone should be repaired or replaced. If the
telephone rings with normal ring voltage but did not ring with low
ring voltage, it indicates that the telephone will not work in a long
line situation (when the telephone is to be used many miles from a
switching station).The telephone should be repaired or replaced. If
you wish to listen to theringback tone while the telephone is ringing,
a second telephone can be plugged into TELEPHONE TESTJACK
#2 and held up to your ear.
NOTE
1. Once ringing is initiated at the LOW or NORMAL ring level, the
ring signal can be stopped by pressing the RESETILOW RINGER
LEVEL button. This applies whethera phone is connected to TELE-
PHONE TEST JACK #1 or not.
2. If a large number of telephone-type devices are connected to a
telephone line, they can prevent a good telephone from ringing. If
the telephone being tested fails to ring when actually hooked up to
a telephone line but rings under this test, exceeding the maximum
ringer equivalent could be the cause of the problem. Each telephone
identifies its ringer equivalent number. If the total of the ringer
equivalent numbers exceeds
5, this could be the cause of the
problem.
VOICE LEVELTEST
(refer to Fig. 6.)
I. TogglethePOWERswitchON.TheDIALED NUMBER DISPLAY
indicator lights when the tester is on.
2. Plug the telephone that you wish to test into TELEPHONE TEST
JACK
#1 and pick up the telephone (take it off hook).Make surethe
SINGLEIAUX switch is in the SINGLE position.

OPERATING INSTRUCTIONS
VOICEIDIAL LEVEL OK Indicator
should light occasionally
when talking into telephone.
\
Pressthe RESETILOW RINGER LEVEL
button to disconnect
/
the dial tone.
Plug telephone to betested into
,
2
TELEPHONE TEST JACK #1
Figure 6. Voice Level Test Set Up.
I4

OPERATING INSTRUCTIONS
~ -~
3. Press the RESETLOW RINGER LEVEL button to stop the dial
tone. It is important to turn off the dial tone while checking the
VOICEiDIAL LEVELOKindicator becausethe dial tone will cause
the tester to read the voice level inaccurately. The VOICE/DIAL
LEVEL OK indicator should light or flicker when you talk into the
telephone. If the indicator fails to occasionally light while talking
into the telephone, the telephone should be repaired orreplaced.
4. Press and hold the POLARITY test button while repeating steps 2
and 3 of the VOICE LEVEL TEST.This reverses the polarity of the
power supplied to the telephone and should not affect operation. If
results are not the same with the polarity reversed, the telephone
should be repaired or replaced.
5. If you wish to test voice quality, refer to the VOICE QUALITY
TEST section of the manual.
VOICE QUALINTEST
To test the voice quality, two telephones are required.
I. TogglethePOWER switch ON.TheDlALED NUMBER DISPLAY
indicator lights when the tester is on.
2. Plug the telephone that you wish to test into TELEPHONE TEST
JACK #1 and a telephone that is known to be in working order into
TELEPHONE TEST JACK #2. Make sure the SINGLEIAUX
switch is in the SINGLE position.
3. Pick up both telephones (take them off hook). You should now be
able to talk and listen as if a telephone call has been completed
between the two telephones.
a. From telephone
1, you should be able to clearly hear the person
talking into telephone 2 (the telephone that is known to be in
working order). This checks the quality of the audio reception
of telephone 1.
b. Theperson attelephone 2 should hear you talking intotelephone
1.This checks the quality of the audio transmission from tele-
phone 1.
4. Press and hold the POLARITY TEST button while repeating the
test.This reverses the polarity of the power suppliedto the telephone
and should not affect operation. If results are not the same with the
polarity reversed, the telephone should be repaired or replaced.
The Telephone Product Tester can test two-line telephones. To test a
two-line telephone, perform the following steps:
1. Plug the two-line telephone's telephone cord into TELEPHONE
TEST JACK #l.Release the SINGLEIAUX switch to the SINGLE
(out)position.
2. Test procedures for two-line telephones are identical to test proce-
dures for single-line telephones. Pel-formeach telephone test in this
manual to assure that all functions of the telephone are operating
properly. This completes the testing of the fu-st communication
circuit of the two-line telephone.
3. Push the SINGLEJAUX switch to the AUX (in)position. Perform
the telephone test procedures again to verify that the second com-
munication circuit of the two-line telephone is functioningproperly.

OPERATING INSTRUCTIONS
CORDLESSTELEPHONETEST
The Telephone Product Tester can test cordless telephones. To test a
cordless telephone, simply perform the following steps:
1. Plug the cordless telephone's base unit ac power cord into an ac
outlet.
2. Plug the cordless telephone's base unit telephone cord into TELE-
PHONE TEST JACK
#1 and release SINGLEIAUX switch to the
SINGLE (out) position.
3. Test procedures for cordless telephones are identical to test proce-
duresfor regular telephones. Be sure however, to follow the instruc-
tion manual for the cordless telephone under test. Perform each
telephone test in this manual to assure that all functions of the
telephone are operating properly.
ANSWERING MACHINETEST
This Telephone Product Tester can also be used to check telephone
answering machines. To test an answeringmachine, perform the follow-
ing steps:
1. TogglethePOWER switchON.TheDIALED NUMBER DISPLAY
indicator lights when the tester is on.
2. Plug the answering machine's ac power cord into an ac outlet.
3. Plug answering machine's telephone plug into TELEPHONETEST
JACK #I and plug a telephone known to be in working order into
TELEPHONE TEST JACK #2.
4. Release SINGLEIAUX switch to the SINGLE (out)position.
5. To cause the answering machine to answeracall, switchthe answer-
ing machine to the answering mode and pick up telephone 2 (takeit
off hook). Press the NORMAL RINGER LEVEL button. After
enough rings have been generated, the answering machine should
answer the call (for example, if the answering machine is set to
answer a call after five rings, the answering machine should answer
the call after the fifth ring). If the answeringmachine fails to answer
the call, it should be repaired or replaced.
6. Leave the answering machine in the answering mode and keep the
telephone plugged intoTELEPHONETESTJACK#2 pickedup(off
hook). Press the RESETILOW RINGER LEVEL button and the
answering machine should answer the call after the proper number
of rings. If the answering machine would not answer the call in this
step but did in step
4, the machine cannot be used in long line
situations (seeRING TEST step
4 forexplanation of long line) and
should be repaired or replaced.
7. After the answering machine answers the call. you should hear the
prerecorded message from the earpieceof thetelephonepluggedinto
TELEPHONE TEST JACK #2. When the answering machine gives
- -
the tone to leave a message, speak into the telephone to leave a
message. Hang up thetelephone (putit back on hook) and play back
the message.
8. If the answering machine has a remote message playback feature,
you can test this also. Repeat step
5, and after the call has been
answered, signal the answering machine to playback the messages.
You should be able to hear the messages on the telephone plugged
into TELEPHONE TEST JACK #2.

OPERATING INSTRUCTIONS
FAX MACHINE TEST
This Telephone Product Testercan simulate a telephone exchangeand
two telephone lines for testing fax machines.
1. Toggle the POWER switch ON. The DIALED NUMBER DIS-
PLAY indicator lights when the tester is on.
2. Plug the fax machine's ac power cord into an ac outlet.
3. Plug the telephone plug of the fax machine to be tested into TELE-
PHONE TEST JACK #I. Plug a second fax machine known to be
in working order into TELEPHONE TEST JACK
#2.
4. Release SINGLEIAUX switch to the SINGLE (out) position.
5. Tocause the fax machinebeing tested to answer a call, pick up (take
off hook) the handset of fax machine
2. Press the NORMAL
RINGER LEVEL button. The fax machine being tested should
answer the call.If the fax machine fails to answer the call, it should
be repaired or replaced.
6. Leave the fax machine in the answering mode and keep the fax
machine plugged into TELEPHONE TEST JACK
#2 picked up (off
hook). Press the RESETILOW RINGER LEVEL button. The fax
machine should answer the call. If thefax machinewould not answer
the call in this step but did in step
4, the machine cannot be used in
long line situations (seeRING TEST step 4 for explanation of long
line). It should be repaired or replaced.
7. After the fax machine being tested answers the call,you should hear
the tones (or observe the message) indicating that it is ready to
receive from the handset earpiece (or the message panel) of the
fax machine plugged into TELEPHONE TEST JACK
#2. When
the fax machine gives the tone (or message) to send a document,
insert the test documentinto the sending fax machine and transmit
the document.
8. Check the document received by the fax machine being tested to
ensure that no problems exist. If the received document is not
satisfactory,the fax machine should be repaired or replaced.
9. Transpose the fax machine telephone cords plugged to TELE-
PHONE TESTJACKS
#I and#2(plugthe fax machinebeingtested
into #2 and the good fax machine into #I). Perform steps
4 through
7 to check the answering and document receiving capabilities of the
fax machine being tested. If any problems are evident, repair or
replace the machine.

OPERATING INSTRUCTIONS
AUTOMATICTELEPHONE DIALERTEST
1. Plug the automatic telephone dialer's acpower cord into an ac outlet.
2. Program each memory in the automatic dialer to dial any number (it
is best to use each digit at least once).
3. Using TELEPHONE TEST JACK #1, hook up the telephone dialer
according to its manual.
4. Perform steps 2 through 5 of the DIAL TEST using the automatic
dialer in place of the telephone to be tested. Test each memory in
the same manner.
THETELEPHONE PRODUCTTESTER AS A
DEMONSTRATOR
The Telephone Product Tester makes a good device for telephone
demonstrations.
The Telephone Product Tester can be used to show a person how to
operate special features of a telephone. For example, to demonstrate the
use of a redial feature, perform the DIAL TEST and the redial function
of the telephone.
The tester can also be used to show a person how to operate a cordless
telephone. Simply hook up thetelephone as described in theCORDLESS
TELEPHONE TEST and then go to the desired operation you wish to
demonstrate. For example, to demonstrate the dialing procedure, you
would perform the DIAL TEST.