Hioki 3665-20 Instruction Manual

3665-20

HIOKI 3665A981-05

Instruction Manual

LAN CABLE HiTESTER

Read carefully before use.

Keep for future reference.

Apr. 2022 Revised edition 5
3665A981-05 22-04H

EN

[600135895]

HIOKI 3665A981-05

i

Contents

Contents

HIOKI 3665A981-05

Introduction ...............................................................1

Verifying Package Contents...................................... 2

Safety Information.....................................................3

Operating Precautions .............................................. 4

Chapter 1 Overview 7

1.1 Product Overview........................................7

1.2 Features ......................................................9

1.3 Names and Functions of Parts .................. 10

Chapter 2 Testing Preparations 13

2.1 Installing the Batteries...............................13

2.2 Turning the Power On and Off .................. 15

2.3 Auto Power-Off Function........................... 16

Chapter 3 Cable Testing Procedures 17

3.1 Basic Procedure........................................ 17

3.2 Testing Wiremap .......................................19

3.2.1 Display Examples...........................21

3.2.2 Help Function .................................27

3.3 Checking Cable Length.............................28

3.4 Locating Open or Shorted Wires ............... 30

3.5 Cable Identification Check.........................31

3665A981-05

Contents

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HIOKI 3665A981-05

Chapter 4 Setting Procedure 33

4.1 Setting an NVP Value ............................... 33

4.1.1 Settings for Standard Cable........... 34

4.1.2 Changing the NVP Value............... 37

4.2 Changing Displayed Measurement Units.. 38

4.3 Switching the Beeper On and Off.............. 39

4.4 Initializing Settings .................................... 40

Chapter 5 Specifications 41

5.1 Model 3665-20 LAN CABLE HiTESTER... 41

5.1.1 Basic Specifications....................... 41

5.1.2 General Specifications................... 43

5.1.3 Functions Specifications ................ 44

5.2 Model 9690 TERMINATOR....................... 45

Chapter 6 Optional Accessories 47

Chapter 7 Maintenance and Service 49

7.1 Cleaning.................................................... 49

7.2 Troubleshooting ........................................ 49

7.3 Error Display ............................................. 53

7.4 Replacing the Batteries............................. 54

1

Introduction

HIOKI 3665A981-05

Introduction

Thank you for choosing the Hioki 3665-20 LAN Cable HiTester.
To obtain maximum performance from the instrument, please
read this manual first, and keep it handy for future reference.
The Model 9690, 9690-01, 9690-02, 9690-03 will be referred to
as the “Model 9690” in this manual

The latest edition of the instruction manual

The contents of this manual are subject to
change, for example as a result of product
improvements or changes to specifications.
The latest edition can be downloaded from
Hioki’s website.

https://www.hioki.com/global/support/download/

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Verifying Package Contents

2

HIOKI 3665A981-05

Verifying Package Contents

• When you receive the instrument, inspect it carefully to ensure
that no damage occurred during shipping. In particular, check
the accessories, panel keys, and connectors. If damage is evi­dent, or if it fails to operate according to the specifications, con­tact your authorized Hioki distributor or reseller.

• Use the original packing materials when transporting the
instrument, if possible.

Package Contents

 Model 3665-20 LAN CABLE

HiTESTER........................ 1

Accessories

 Model 9690 TERMINATOR

(ID number 0) ............... 1

 LR6 alkaline batteries .. 2

 Carrying case............... 1

 Instruction manual........ 1

3

Safety Information

HIOKI 3665A981-05

Safety Information

This instrument is designed to conform to IEC 61010 Safety
Standards and has been thoroughly tested for safety prior to
shipment. However, using the instrument in a way not described
in this manual may negate the provided safety features.
Before using the instrument, be certain to carefully read the fol­lowing safety notes:

Notation

In this document, the risk seriousness and the hazard levels are
classified a

( P. ) Indicates the location of reference information.

*

Mishandling during use could result in injury
or death, as well as damage to the instru­ment. Be certain that you understand the
instructions and precautions in the manual
before use.

s follows.

Indicates a potentially hazardous situation
that may result in death or serious injury to
the operator.

Indicates a potentially hazardous situation
that may
the operator or damage to the instrument or
malfunction.

Indicates advisory items related to perfor­mance or correct operation of the instrument.

Indicates prohibited actions.

Indicates that descriptive information is provided
below.

result in minor or moderate injury to

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Operating Precautions

4

HIOKI 3665A981-05

Symbols affixed to the instrument

In the manual, the symbol indicates particularly
important information that the user should read
before using the instrument.

Indicates DC (Direct Current).

Operating Precautions

Follow these precautions to ensure safe operation and to obtain
the full benefits of the various functions.

Preliminary Checks

Before using the instrument the first time, verify that it operates
normally to ensure that the no damage occurred during storage
or shipping. If you find any damage, contact your authorized
Hioki distributor or reseller.

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Operating Precautions

HIOKI 3665A981-05

Instrument Operating Environment

Installing the instrument in inappropriate
locations may cause a malfunction of the
instrument or may give rise to an accident.
Avoid the following locations:

• Exposed to direct sunlight or high tempera­ture

• Exposed to corrosive or combustible gases

• Exposed to a strong electromagnetic field

r electrostatic charge

o

• Near induction heating systems (such as
high-frequency induction heating systems
and IH cooking equipment)

• Susceptible to vibration

• Exposed to water, oil, chemicals, or sol­vents

• Exposed to high humidity or condensation

• Exposed to high quantities of dust particles

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Operating Precautions

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HIOKI 3665A981-05

Handling the Instrument

• To avoid damage to the instrument, protect it
from physical shock when transporting and han­dling. Be especially careful to avoid physical

om dropping.

shock fr

• To avoid damage to the instrument, do not

emove the instrument's case.

r

• To avoid damage to the instrument due to an
application of overvolt
wires such as telephone lines.

• To avoid corrosion from battery leakage and

problems with battery operation, remove the bat­teries from the instrument if it is to be stored for a

ng time.

lo

• The indicator flashes when battery voltage

becomes low. Replace the batteries as soon as
possible.

• After use, always turn OFF the power.

age, do not connect to live

7

1.1 Product Overview

Testing wiremap

Measuring cable
length

Major Features

Identifying cable
connections

HIOKI 3665A981-05

Overview Chapter 1

1.1 Product Overview

The Hioki 3665-20 LAN CABLE HiTESTER is a hand-held cable
tester that provides easy operations to test wiremap, measure
cable length and identify twisted-pair cables. It is useful for veri­fying connections after installing connectors on cables. Optional
terminators are available to facilitate easy identification of multi­ple cables. The HiTester is especially convenient for testing
cables in working networks in the event of faults caused by
open- or short-circuited cable wiring.

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1.1 Product Overview

8

Open-Circuit Wire
Detected

The figure shows an example of detecting cables through wall jacks.

Cables being checked

Model 9690 Terminators

Patch Cable

HIOKI 3665A981-05

Testing cable connections after installing connectors

Checking wiremaps (p.19).

Troubleshoot cables in working networks

When an open- or short-circuit fault is present in

a cable, the
HiTester displays the distance along the cable from it to the fault.
So when a problem occurs in a working network, the HiTester
determines whether the problem is caused by an open- or short­circuit in the cable, and its location (p.30).

Identifying cables installed together

When multiple cables are installe

d together, distinguishing which
cable is connected to what device can be difficult. However, the
HiTester can easily identify multiple cables by using optional ter­minators. Up to 21 cables can be identified using multiple termi­nators (p.31).

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1.2 Features

TEST

HIOKI 3665A981-05

1.2 Features

Simple Operation

Test cable wiremap, measure length and identify connec-

tions with a simple procedure: just connect the ends to the

ester and a terminator, and press the key.

HiT

Compact Size

The compact HiTester can be carried as a hand tool and

operated with one hand.

Easy-to-See Display

Test results are displayed in large characters and graphic

symbols.

Cable Length Measurement Calibration Func­tion

For the most precise cable length measurements, set the

NVP value to calibrate the HiTester (p.33).

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1.3 Names and Functions of Parts

10

Top panel

Front panel

(Hold for one second)

POWER ON/OFF Key

Turns the HiTester on and off.

SET Key

Displays the Set­tings screen

Cable connection
terminal (RJ-45)

HELP / Key

Switches between the Test Re­sults and the Help screens. Also,
on the Settings screen, selects
items and increments and decre­ments numerical values.

TEST Key

Start cable testing

Display (LCD)

(Magnified view)

(Hold for one second)

HIOKI 3665A981-05

1.3 Names and Functions of Parts

11

1.3 Names and Functions of Parts

Display

Display Example of Correct Wiring

Battery indicator (normally off)

Display Example of Faulty Wiring

Cable
length

ID
number

ID
number

Cable
length

Wiring
condition

Wiring
condition

HIOKI 3665A981-05

1

2

3

To view wiremap details, or when you want to know the meaning
of display items, press the HELP / key to display the Help
screen. (p.27)
The display is backlighted when you press any key (it will auto­matically be turned off after about 20 seconds).

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1.3 Names and Functions of Parts

12

Rear panel

Battery compartment
cover

Strap mounting hole

Serial number label

The serial number consists

of 9 digits. The first two

(from the left) indicate the

year of manufacture, and

the next two indicate the

month of manufacture.

Required for production

control. Do not peel off

the

label.

Front panel

Top panel

ID
number

Cable connection terminal
(RJ-45 connector)

Strap mounting hole

HIOKI 3665A981-05

Model 9690 TERMINATOR

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Testing

HIOKI 3665A981-05

Preparations

2.1 Installing the Batteries

Chapter 2

1

2.1 Installing the Batteries

Before using the HiTester, install two AA-size (LR6) alkaline bat­teries. Also, before each test, verify that the batteries have suffi­cient remaining capacity, and replace them if they are weak.

• Do not mix old and new batteries, or differ­ent types of batteries. Also, be careful to
observe battery polarity during installation.
Otherwise, poor performance or damage
from battery leakage could result.

• To avoid the possibility of explosion, do not

• Handle and dispose of batteries in accor-

• The indicator flashes when battery voltage

• Do not attempt to use any power source other

ircuit, disassemble or incinerate bat-

short c
teries.

dance with local regulations.

becomes low. Replace the new batteries soon.

than the specified
ies. Operating time with non-alkaline (manga­nese) batteries is shorter.

AA-size (LR6) alkaline batter-

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14

Remove the test cable, if connected.

Rear Panel

To avoid damaging
the battery com­partment cover, do
not attempt to open
it by inserting a
screwdriver into the
latch hole.

HIOKI 3665A981-05

1.

Turn the HiTester off.

2.

Remove the battery compartment cover from the rear of

3.

the HiTester.

Install the new batteries, with attention to proper polarity.

4.

Replace the battery compartment cover.

5.

2.1 Installing the Batteries

15

2.2 Turning the Power On and Off

ON/OFF

Model name and
version information

To the cable test screen

Press the POWER
key to turn the power on.

ON/OFF

Hold for
one second

Hold for
one second

Press the POWER key to turn the power off.

ON/OFF

HIOKI 3665A981-05

2.2 Turning the Power On and Off

Press and hold the POWER key for about one second to

turn the power on and off.

Power On

Power Off

The indicator flashes when battery voltage
becomes low. Replace the new batteries soon.

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2.3 Auto Power-Off Function

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HIOKI 3665A981-05

2.3 Auto Power-Off Function

The HiTester includes an auto power-off function to prevent bat­tery depletion in case you forget to turn it off. It turns off automat­ically if no key is pressed for about ten minutes.

The auto power-off function cannot be disabled.

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Cable Testing

HIOKI 3665A981-05

Procedures

3.1 Basic Procedure

Chapter 3

1

3.1 Basic Procedure

• To avoid equipment damage, do not attempt to
test a cable connected to an operating network.
The RJ-45 cable test jacks on the HiTester and
terminators are intended for testing only stand­alone cables.

• Do not connect any cable other than the twisted

ir cable. For example, a voltage of approxi-

pa
mately 48 V is applied to a live telephone wire,
and therefore will damage the HiTester if it is
connected to the wire.

• Remove a cable to be checked from any device
or a network hub before connecting the cable to
the instrument. Inserting the cable left con­nected with a device or hub into the instrument
can cause damage to t
device.

The characteristics of twisted-pair cables can vary
depending on installation conditions. Avoid unnec
essary bending of cables to be tested. When nec­essary to bend a cable, the radius of curvature

ld be at least four times the outer diameter of

shou
the cable.

he instrument and

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3.1 Basic Procedure

18

Wiremap

1

Power
ON

2

Press the key to start testing

TEST

3

Test results are displayed

<Display Example>

Cables being checked

Terminator

Cable Length

ID Number

HIOKI 3665A981-05

Remove a cable to be checked from any device or
a network hub before connecting the cable to the
instrument.

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3.2 Testing Wiremap

(Normal Wiring)

(Incorrect Wiring)

Example: Cross-over cable

Example: Reversed wires

HIOKI 3665A981-05

3.2 Testing Wiremap

For normal wiring, "PASS" is displayed at the top left, and for
incorrect wiring, "FAIL" is displayed (blinking).

The instrument produces beeps depending on the wiring status

s follows:

a

Wiring status Beep

Normal
Wi

ring

Incorrect Wiring

Terminator Disconnect

Terminator Error

Beeper sounds can be switched on and off as your preference.

p.39)

(

Straight-Through
Cable

Cross-Over Cable

Higher-tone

Lower-tone

One longer
beep

Two shorter
beeps

One longer
beep

Two shorter
beeps

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3.2 Testing Wiremap

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HIOKI 3665A981-05

Meaning of displayed wiring status (wiremap) symbols

Display
Examples

Meaning

Normal wiring Reversed wiring

Transposed wiring Split pairs

Open wiring Short wiring

Display
Examples

Meaning

Other incorrect
wiring

* Indicates whether the cable connectors are connected by a

shielding conductor.

If an error for incorrect wiring is displayed even
a normal cable, refer to "Section 7.2 Troubleshooting" (p.49)

Shielded/
Unshielded

when measuring

*

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3.2.1 Display Examples

1
2
3
6
4
5
7
8

HiTester End

Terminator End

1
2
3
6
4
5
7
8

Straight-Through Cable
Cable shield detected

Cables being checked

Cable Wiring Diagram

HIOKI 3665A981-05

3.2 Testing Wiremap

These display examples show how to read wiring status.

Straight-Through Cable

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3.2 Testing Wiremap

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1
2
3
6
4
5
7
8

1
2
3
6
4
5
7
8

Cross-Over Cable
Detected as 10/100
BASE, unshielded

HiTester End

Terminator End

1
2
3
6
4
5
7
8

1
2
3
6
4
5
7
8

Cross-Over Cable
Detected as 1000BASE­T, unshielded

HiTester End

Terminator End

HIOKI 3665A981-05

Cross-Over Cable (10/100BASE)

Cross-Over Cable (1000BASE-T)

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3.2 Testing Wiremap

1
2
3
6
4
5
7
8

1
2
3
6
4
5
7
8

Cross-Over Cable
Detected as 1000BASE­TX, unshielded

HiTester End

Terminator End

HIOKI 3665A981-05

Cross-Over Cable (1000BASE-TX)

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2

3

4

5

6

Cross-over connections are judged according to
wiring standards.

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3.2 Testing Wiremap

24

Reversed wiring of pins
1 and 2 is detected.

1
2
3
6
4
5
7
8

1
2
3
6
4
5
7
8

HiTester End

Terminator End

1
2
3
6
4
5
7
8

1
2
3
6
4
5
7
8

Transposed wiring is
detected as pins 3 and
6 being transposed with
pins 4 and 5.

HiTester End

Terminator End

HIOKI 3665A981-05

Reversed Wiring

Transposed Wiring

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Open Wiring

1
2
3
6
4
5
7
8

1
2
3
6
4
5
7
8

Pin 1 is detected to be
open-circuit.
See "Section 3.4 Locat­ing Open or Shorted
Wires" (p.30)

HiTester End

Terminator End

1
2
3
6
4
5
7
8

1
2
3
6
4
5
7
8

Pins 1 and 2 are detected
to be short-circuited.

HiTester End

Terminator End

HIOKI 3665A981-05

3.2 Testing Wiremap

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5

6

Short Wiring

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3.2 Testing Wiremap

26

A wiring error is detected
with twisted-pair pins 3
and 6, and pins 4 and 5.

HiTester End

Terminator End

Check that the Terminator is
connected correctly.

Errors are detected on all pins.
The cable may be insecurely
connected, or a device other
than a terminator may be con­nected.
Cables in which all pin pairs are
different at each end cannot be
tested.

HIOKI 3665A981-05

Split Pairs

In short cables, split pairs may not be detected.

Terminator Disconnect

Terminator Error

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3.2.2 Help Function

(Normal Wiring) (Incorrect Wiring)

(Help Screen)

(Test Results Screen)

Example: Cross-over cable

Example: Reversed wires

HIOKI 3665A981-05

3.2 Testing Wiremap

Press the HELP / key when the Test Results screen is dis­played to see details of the wiremap and meaning of the screen
symbols.

Cable testing is not possible from the Help screen.
Return to the Test Results screen before testing
again.

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3.3 Checking Cable Length

28

HIOKI 3665A981-05

3.3 Checking Cable Length

Cable length is displayed at the bottom right.

• The wire length of each pair is displayed along
the bottom when an open, short or split pair is
detected, or when a disconnected terminator or
terminator error is detected.
The length of each wire pair may be displayed as
a different value depending on the cable type,
twisted pair condition or measurement accuracy.
The wire length of a split pair may be displayed

rter than its actual length (when an imped-

as sho
ance mismatch exists).

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3.3 Checking Cable Length

HIOKI 3665A981-05

• The HiTester measures cable lengths from 2 to
300 meters (6.6 to 984 feet). Cable lengths out
side of this range are not displayed.

• It is recommended to set an NVP value to mea­sure cable length accurately.
See "Section 4.1 Setting an NVP Value" (p.33)
for details.

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3.4 Locating Open or Shorted Wires

30

1
2
3
6
4
5
7
8

1
2
3
6
4
5
7
8

7 m

19 m

HiTester End

Terminator End

HIOKI 3665A981-05

3.4 Locating Open or Shorted Wires

When a wire is open (broken) or shorted somewhere along the
length of a cable, the distance to the fault is determined.

<Example>

The open-circuit symbol is displayed, and the display length of
the 1-

2 pair is shorter than the other pairs. This display indicates
that the wire at pin 1 is broken about seven meters from the HiT­ester.

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3.5 Cable Identification Check

ID0

ID0

HIOKI 3665A981-05

3.5 Cable Identification Check

The ID number of the connected terminator is displayed at the
top right. In the following example, the HiTester is connected to
Terminator ID5.
When no terminator is connected to the test cable, "No Termina­tor" is displayed.

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3.5 Cable Identification Check

32

ID2

ID2

ID1

ID0

HIOKI 3665A981-05

The supplied terminator has ID number 0. Optional terminators
are available with ID numbers 1 to 20. Purchase optional termi­nators when you need to be able to conveniently check multiple
cables.

• The ID number cannot be determined unless
pins 1, 2, 3 and 6 are correctly connected
through the cable.

• When Open or No Shield is displayed because a
cable is not connected correctly, an incorrect ID
number may be displayed (aside from those
cases in which Open or No Shield is displayed
for terminals with no wiring).

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4.1 Setting an NVP Value

HIOKI 3665A981-05

Setting Procedure Chapter 4

4.1 Setting an NVP Value

NVP is the speed of a signal through a cable relative to the
speed of light in a vacuum. See "Section Theory of Cable
Length Measurement" (p.36) for details.

The optimum NVP value setting depends on the type of cable
and twist state of the wire pairs. Cable length measurement
accuracy can be optimized by setting the appropriate value for
the actual type of cable to be measured. The default HiTester
setting is 0.684.

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4.1 Setting an NVP Value

34

Model 3665-20 LAN CABLE HiTESTER

Standard Reference Cable (100 m)

SET

SET

HIOKI 3665A981-05

4.1.1 Settings for Standard Cable

The most accurate cable length measurements are achieved by
setting the NVP value to match the actual type of cable to be
tested. Before measuring, prepare a standard reference cable
using a known length of exactly the same type as that to be
tested. Calibrate the HiTester according to the following proce­dure.

We recommend that the standard reference cable
be at least 100 m (382 feet) long.
A shorter length may result in larger measurement
errors due to the inaccurate NVP value obtained.

Prepare a standard reference cable and measure its

1.

actual (physical) length.
(This example shows a 100 m standard r

Connect the HiTester to the standard reference cable.

2.

3.

Turn the HiTester on, and hold the for one second to
display the Settings screen.

Select "Length Adjust" with the  /  keys, and press

4.

the key.

eference cable.)

35

4.1 Setting an NVP Value

TEST

The cable length measure­ment range of this instru­ment is 2 to 300 m (6.6 to
984-ft.).

(In this example, "100.0 m"
has been selected)

NVP value

SET

SET
SET

HIOKI 3665A981-05

5.

Press the key to measure the cable length.

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2

Change the NVP value with the  /  keys so that the

6.

displayed length matches the measured physical length
of the standard reference cable.

7.

Press the key to display the Confirmation screen,

select "OK" with the  /  keys, press the key again

to accept your setting.

Select "Measurement" with the  /  keys, and press

8.

the key to return to the Test screen.

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4.1 Setting an NVP Value

36

Model 3665-20 LAN CABLE HiTESTER

Terminator

Cables being
checked

Near End

Far End

Pulse

L =

C

× T × NVP

2

χ

χ

χ

C × t × NVP

2

χ

HIOKI 3665A981-05

Theory of Cable Length Measurement

The HiTester employs the TDR (time domain reflectometry)
method to measure the amount of time from the input of a pulse
to the return of its reflected wave from the far end of the cable.

Length is calculated by the following formula:

L : Cable length (m)

C : Speed of light in a vacuum = 3
T : Pulse propagation time from insertion to reflection return (s)
NVP : Nominal Velocity of Propagation (the speed of a signal through a

cable relative to the speed of light in a vacuum.)

× 10

8

(m/s)

Measurement Accuracy

Cable length measurement accuracy is ± 4% rdg. ± m, where

is the quantization error calculated as follows:

=

C : Speed of light in a vacuum = 3

t : Finest time resolution 10
NVP : Nominal Velocity of Propagation

(Signal propagation speed as a percentage of the speed of light in
a vacuum)

× 10

In the default case with NVP value of 0.684, ≅ 1.

Refer to "Section Accuracy" (p.41) for details
about rdg.

× 10

-9

(s)

8

(m/s)

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4.1 Setting an NVP Value

SET

SET

(In this example, "0.700" has
been selected)

SET

SET

SET

HIOKI 3665A981-05

4.1.2 Changing the NVP Value

Use the following procedure to change the NVP value.

1.

With the HiTester turned on, hold the key for one sec­ond to display the Settings screen.

Select "Length Adjust" with the  /  keys, and press

2.

the key.

Set the NVP value with the  /  keys.

3.

4.

Press the key to display the Confirmation screen,

select "OK" with the  /  keys, press the key again

to accept your setting.

1

2

3

4

5

6

7

8

9

10

索引

Select "Measurement" with the  /  keys, and press

5.

the key to return to the Test screen.

4.2 Changing Displayed Measurement Units

38

SET

SET

SET

(In this example, "ft" has
been selected)

SET

HIOKI 3665A981-05

4.2 Changing Displayed Measurement
Units

The measurement units in which the cable length is displayed
can be switched between "m" and "ft" by the following proce­dure.

1.

With the HiTester turned on, hold the key for one sec­ond to display the Settings screen.

2.

Select "Unit" with the  /  keys, and press the key.

3.

Select "m" or "ft" with the  /  keys, and press the
key to accept.

Select "Measurement" with the  /  keys, and press

4.

the key to return to the Test screen.

39

4.3 Switching the Beeper On and Off

SET

SET

SET

(In this example, "Off" has
been selected)

SET

HIOKI 3665A981-05

4.3 Switching the Beeper On and Off

HiTester beeper sounds can be set on and off (silent) by the fol­lowing procedure.

1.

With the HiTester turned on, hold the key for one sec­ond to display the Settings screen.

2.

Select "Beep" with the  /  keys, and press the
key.

Select "ON" or "OFF" with the  /  keys, and press the

3.

key to accept.

Select "Measurement" with the  /  keys, and press

4.

the key to return to the Test screen.

1

2

3

4

5

6

7

8

9

10

索引

4.4 Initializing Settings

40

SET

SET

SET

SET

HIOKI 3665A981-05

4.4 Initializing Settings

To initialize HiTester settings by the following procedure.
Initialized Settings

• NVP value (Initial setting is "0.684")

• Beeper (Initial setting is "On")

• Measurement Units (Initial setting is "m")

1.

With the HiTester turned on, hold the key for one sec­ond to display the Settings screen.

Select "Reset ALL" with the  /  keys.

2.

3.

Press the key to display the Confirmation screen,

select "OK" with the  /  keys, press the key again

to accept your setting.

Select "Measurement" with the  /  keys, and press

4.

the key to return to the Test screen.

41

5.1 Model 3665-20 LAN CABLE HiTESTER

HIOKI 3665A981-05

Specifications Chapter 5

Accuracy

We define measurement tolerances in terms of rdg. (reading),
with the following meanings:

rdg. (reading or displayed value)

The value currently being measured and indicated on the mea­suring instrument.

5.1 Model 3665-20 LAN CABLE HiT­ESTER

5.1.1 Basic Specifications

Measurement
Function

Measurable
cable and
connector types

Allowed input Up to 3.3 Vpeak (between RJ-45 pins)

Accuracy
guarantee for
temperature
and humidity

Guaranteed
accuracy period

Product warranty
period

• Wiremap test

• Cable length measurement

• Cable identification check

Twisted-pair cables:
100 Ω characteristic impedance
shielded or unshielded
CAT3, CAT4, CAT5, CAT5e, CAT6, CAT6A
RJ-45 connector

°C (73 ± 9°F), 80% RH or less

23 ± 5
(non-condensating, when indicator is not

blinking)

1 year

3 years

1

2

3

4

5

6

7

8

9

10

索引

5.1 Model 3665-20 LAN CABLE HiTESTER

42

HIOKI 3665A981-05

Measurement Function Details

Wiremap Test

Measurement
Items

Testing method Voltage divider

Output (Refer­ence value)

Cable Length Measurement

Measurement
Items

Testing method

Output (Refer­ence value)

Wiremaps and shielding can be checked
using the Model 9690 TERMINATOR Faults
detected
Open, short, reversed, transposed, split and

wiring faults

other

(for split pairs: crosstalk detection method)

3.0 Vpeak
(Split pairs: ± 3.0 Vpeak, 120-kHz quasi sine
wave)

Measurable length: 2 to 300 m (6.6 to 984-ft.)
Measurement accuracy:
± 4% rdg. ± 1 m (±4% rdg. ± 3.3-ft.)
(Accuracy specifying condition: solid w
not including error caused by inaccurate
NVP)
Displayed measurement resolution:

0.1 m (0.3-ft.)

TDR method

Pulse signal, Pulse Width 10 n, 20 n, 80 n,
320 ns (Auto setting), Amplitude 3.3 Vp-p

ire,

Cable Identification Check

Measurement
Items

Testing method Voltage divider method

Identifies up to 21 cables using the supplied
Model 9690 and optional Models 9690-01 to
9690-04

43

5.1 Model 3665-20 LAN CABLE HiTESTER

HIOKI 3665A981-05

Output (Refer­ence value)

3.0 Vpeak

1

2

3

4

5

6

7

8

9

10

索引

5.1 Model 3665-20 LAN CABLE HiTESTER

44

HIOKI 3665A981-05

5.1.2 General Specifications

Display LCD (with backlight)

Operating
temperature
and humidity

Storage
temperature
and humidity

Operating
environment

Rated supply
voltage

Maximum

ated

r
power

Continuous
operating time

Dimensions

Mass Approx. 160 g (5.6 oz., without batteries)

Applicable
Standards

Accessories Model 9690 TERMINATOR ....................1

°C to 40°C (32°F to 104°F), 80% RH or less

0
(non-condensating)

-10°C to 50°C (14°F to 122°F), 80% RH or less
(non-condensating)

Indoors, altitude up to 2000 m (6562-ft.)

DC1.5 V × 2 (two LR6 alkaline batteries)

1.4 VA

Approx. 50 hours (1 measurement/minute, ref­erence value)

Approx. 85W
(3.35"W

Safety
EN61010 Pollution degree 2
EMC
EN61326

Carrying case .........................................1

LR6 alkaline batteries.............................2

Instruction manual..................................1

× 130H × 33D mm

× 5.12"H × 1.30"D, sans protrusions)

45

5.1 Model 3665-20 LAN CABLE HiTESTER

TEST

HIOKI 3665A981-05

Options Model 9690-01 TERMINATOR (ID1 to ID5)

Model 9690-02 TERMINATOR (ID6 to ID10)
Model 9690-03 TERMINATOR (ID11 to ID15)
Model 9690-04 TERMINATOR (ID16 to ID20)
Model 9249 CARRYING CASE
Model 9628 LAN CABLE

(for cable testing, 1 m long, with RJ-45
plugs on each end)

5.1.3 Functions Specifications

NVP setting
function

Auto backlight Backlight is lit by key operation

Beeper Sounds for key operations and when measure-

Power saving
mode

Auto power­off

Low-battery

ing

warn

Displayed
measurement
units

• NVP auto calculation from length of a stan­dard reference cable

• Direct NVP setting

(0.684 default value)

(auto turn-off after approx. 20 seconds)

ment results are displayed

Operates after measurement

(wakes with the

Power turns off automatically 10 minutes after
the last key operation

The indicator blinks when battery voltage
falls below 2.4 V

meters (m) or feet (ft)

key)

1

2

3

4

5

6

7

8

9

10

索引

5.2 Model 9690 TERMINATOR

46

HIOKI 3665A981-05

5.2 Model 9690 TERMINATOR

Circuit type Resistance network

Measurable
cable and
connector types

ID number 0

Operating
temperature
and humidity

Storage
temperature
and humidity

Operating
environment

Dimensions

Mass Approx. 14 g (0.5 oz.)

Twisted-pair cables:
100 Ω characteristic impedance
shielded or unshielded
CAT3, CAT4, CAT5, CAT5e, CAT6, CAT6A
RJ-45 connector

°C to 40°C (32°F to 104°F), 80% RH or less

0
(non-condensating)

-10°C to 50°C (14°F to 122°F), 80% RH or less
(non-condensating)

Indoors, altitude up to 2000 m (6562-ft.)

Approx. 26W × 46H × 19Dmm (1.02"W ×

1.81"H × 0.75"D, sans protrusions)

47

Optional

HIOKI 3665A981-05

Accessories

Chapter 6

1

The following options are available for the 3665-20 LAN CABLE
HiTESTER. To order an option, please contact your authorized
Hioki distributor or reseller.
Options are subject to change. Check Hioki’s website for the lat­est information.

Terminators

To conveniently identify multiple cables with the
can use the optional terminators (sold in 5-piece sets) to elimi­nate the need to change cable connections at the far end.

• Model 9690-01 TERMINATOR (ID number: 1 to 5)

• Model 9690-02 TERMINATOR (ID number: 6 to 10)

• Model 9690-03 TERMINATOR (ID number: 11 to 15)

• Model 9690-04 TERMINATOR (ID number: 16 to 20)

HiTester, you

2

3

4

5

6

7

8

9

10

索引

48

Model 9628 LAN CABLE

Cables being checked

Wall jacks

Terminators

HIOKI 3665A981-05

Model 9249 CARRYING CASE

The hard case holds the HiTester, terminators and a LAN patch
cable. Extra space is provided for other tools. Keep this manual
in the flap pocket inside the cover.

Model 9628 LAN CABLE

Use this patch cable to connect the HiTester to the cable to be
tested through a wall jack (for cable testing, 1 m long, with RJ-45
plugs on each end).

49

Maintenance

HIOKI 3665A981-05

and Service

7.1 Cleaning

Chapter 7

1

Never modify the instrument. Only Hioki service
engineers should disassemble or repair the instru­ment. Failure to observe these precautions may

in fire, electric shock, or injury.

result

7.1 Cleaning

• To clean the instrument, wipe it gently with a soft cloth moist­ened with water or mild detergent.

Never use solvents such as benzene, alcohol,
acetone, ether, ketones, thinners or gasoline, as
they can deform and discolor the case.

• Wipe the LCD gently with a soft, dry cloth.

7.2 Troubleshooting

If damage is suspected, check the "Troubleshooting" section

efore contacting your authorized Hioki distributor or reseller.

b

When sending the instrument for repair, remove
the batteries and pack carefully to prevent damage
in transit. Include cushioning material so the instru
ment cannot move within the package. Be sure to
include details of the problem. Hioki cannot be
responsible for
ment.

damage that occurs during ship-

2

3

4

5

6

7

8

9

10

索引

-

7.2 Troubleshooting

50

HIOKI 3665A981-05

Troubleshooting

Symptom Checks and Remedy

Cable length is not dis­played

Is the cable between 2 and 300 m
long?
→The cable length measurement

nge of this instrument is 2 to

ra
300 m (6.6 to 984-ft.). However,
cable length cannot be mea­sured if the cable’s characteristic
impedance is far
The Model 9628 LAN CABLE is

m long, so it cannot be mea-

1
sured.

from 100 Ω.

The results of the cable
le

ngth test is different from

the actual cable length.

Open or other incorrect wir­ing (? display) is displayed
even when a
is measured.

"No Terminator" is dis­played

normal cable

The amount of error specified for
cable length testing is ± 4%rdg. ±
1m. Please check first to see if the
test results come within this range.
→If the test results are indeed out­side of the accuracy range, change

settings for the NVP value.

the
(p.33)
However, the instrument may show
a longer
length for stranded wires due to the
measurement principle.

Have you ever connected to a live
telephone wire, etc.? (p.17)

→The HiTester may be damaged

→"Section 7.3 Error Display"

length than the actual

to an application of overvolt-

due
age. Please send it for repair.

(p.53)

51

7.2 Troubleshooting

HIOKI 3665A981-05

Symptom Checks and Remedy

No ID number is displayed Are pins 1, 2, 3 and 6 connected

correctly in the test cable?
→Check cable wiring.

1

2

An incorrect ID number is

layed

disp

Cable length is not
obtained when cable
calibration has been per­formed

The mark is blinking

length

Is the test cable connected cor­rectly?
→When Open or No Shield is dis-

played because a cable is not
connected cor
rect ID number may be dis­played. (Open or No Shield is
displayed
connected.)

Is the cable between 2 and 300 m
long?
→The cable length measurement

ange of this instrument is 2 to

r
300 m (6.6 to 984-ft.). However,
cable length cannot be mea­sured if the cable’s characteristic
impedance is fa

→Replace the batteries (p.54).

rectly, an incor-

when a wire is not

r from 100 Ω.

3

4

5

6

7

8

9

10

索引

7.2 Troubleshooting

52

ON/OFF

HIOKI 3665A981-05

Symptom Checks and Remedy

Nothing is displayed even
when pressing the POWER

key

→Replace the batteries (p.54)

Are the batteries installed cor­rectly?
→Check whether the batteries are

talled correctly.

ins
If installed incorrectly, reinstall
the batteries (p.54).

53

7.3 Error Display

SET

HIOKI 3665A981-05

7.3 Error Display

When an error is displayed, confirm the following contents.

Message Description and Remedy

No Terminator The 9690 TERMINATOR is discon-

Terminator Error A device other than a 9690 TERMINA-

Memory Error Some data could not be stored or read

System Error The HiTester has internal system dam-

nected.
→Connect the 9690 TERMINATOR.

TOR is connected.
→Connect a 9690 TERMINATOR.

An error exists on all pins.
→Check that the cable is connected

urely.

sec

rectly.

cor

→Press the key to initialize HiT-

ester settings.

→If the problem is not resolved by ini-

tializing, contact your supplie
nearest Hioki representative.

age.
→Contact your authorized Hioki distrib-

utor or reseller.

r or

1

2

3

4

5

6

7

8

9

10

索引

7.4 Replacing the Batteries

54

HIOKI 3665A981-05

7.4 Replacing the Batteries

Replace batteries if they are weak.

• Do not mix old and new batteries, or differ­ent types of batteries. Also, be careful to
observe battery polarity during installation.
Otherwise, poor performance or damage
from battery leakage could result.

• To avoid the possibility of explosion, do not
short circuit, disassemble or incinerate bat­teries.

• Handle and dispose of batteries in accor­dance with local regulations.

To avoid electric shock, turn off the power and dis-
connect the testing cable before replacing the bat-
teries. After replacing the batteries, replace the
cover before using the instrument.

• The indicator flashes when battery voltage

becomes low. Replace the new batteries soon.

• Do not attempt to use any power source other

than the sp
ies. Operating time with non-alkaline (manga­nese) batteries is shorter.

ecified AA-size (LR6) alkaline batter-

55

1.

Rear Panel

To avoid damaging
the battery com­partment cover, do
not attempt to open
it by inserting a
screwdriver into the
latch hole.

HIOKI 3665A981-05

2.

3.

4.

5.

7.4 Replacing the Batteries

Remove the test cable, if connected.

Turn the HiTester off.

Remove the battery compartment cover.

Remove both batteries and install new ones with atten­tion to polarity.

Replace the battery compartment cover.

1

2

3

4

5

6

7

8

9

10

索引

7.4 Replacing the Batteries

56

HIOKI 3665A981-05

HIOKI 3665A981-05

www.hioki.com/

HIOKI 3665A981-05