Pro'sKit MT-7071N 取扱説明書

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MT-7071N

LCD Cable Length Toner & Probe Kit

User’s Manual

1st Edition, 2023

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1. OVERVIEW

Thank you for purchase Pro’sKit MT-7071N LCD Cable Length

Toner & Probe Kit. The Toner and Probe set is used to measure

cable length and quickly trace and identify cables or wires within a

group and also check the operation of telephone lines. With proper

use and care, this instrument will provide many years of reliable

service.

MT-7071N is a new high-frequency filter circuit technology, with the

elimination of noise and anti-interference line tracker, LCD display

screen. Users can select display language in Chinese or English.

Suitable for ordinary network, PoE network, UTP / STP cable search

and positioning. The interface on the network can be located through

the port flashing function. Network Cable and BNC coax map test.

This product can perform the network wire length testing. This

product is suitable for telecommunications, network communication,

monitoring, CATV and other indoor and outdoor wiring construction

or maintenance projects.

Caution

!This product uses 9V 6LR61 or 6F22 battery power supply, and

6LR61 battery is recommended.

!To save the battery, please shut down immediately after use. If it

is not in use for a long time, please remove the battery in the

transmitter and receiver to avoid damage to the product caused by

battery liquid from leaking out.

!This product is strictly prohibited to access the live lines above

voltage DC 60V or any AC voltage.

!Please do not perform related operations on the communication

line during thunderstorms to prevent lightning strikes and personal

safety.

!Do not place this product in dusty, wet and temperatures above

40℃.

!Please do not disassemble the device. Repair and maintenance

should be done by a professional staff.

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2.Diagram

Transmitter and Remote Unit Diagram

① RJ45(with LED) connector：For Cable Length and Port Flash test

② RJ45 connector：For Cable map、Cable Tracing.

③ BNC connector: For Coax map、Coax Tracing

④ LCD display.

⑤ “ ” key：ENTER key: Press this key for a test choose or setting.

⑥ “ ” key：Press this key to move arrow cursor up or left on LCD

to choose function.

⑦ “ ” key：Press this key to return to previous menu.

⑧ “ ”：Press this key to power on, and long push again for power

off.

⑨ “ ”：Press this key to move arrow cursor down or right on LCD

to choose function.

⑩ Battery cover.

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Receiver Diagram

① Probe：Used for cable tracing and NCV detection.

② LED light

③ Power ON/OFF indicator

④ NCV indicator

⑤ Signal status indicator

⑥ Sensitivity control

⑦ Earphone socket (Φ3.5mm)

⑧ Function switch (LED light/NCV/OFF/SCAN mode)

⑨ Speaker

⑩ Locating and tracing cables function button

⑪ RJ45(8 pin)/ RJ11 (6/4/2 pin) cable mapping test

socket.

⑫ Battery cover

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3.Operation

Do not connect with DC voltage over 60V or any AC

voltage live circuit equipment or it will result damage.

Press “ ”key to power on, as show blow. Press“ ” or“ ”key

to choose function. Press“ ”key to test. Press“ ”key to return.

Note: The arrow “▲” on the LCD display indicates the test port

location of the network cable to be tested.

graph 1 graph 2

Graph 1: The cable shall be inserted into the middle RJ45 connector.

Graph 2: The cable shall be inserted into the left RJ45(with LED)

connector .

3.1 Cable map test：

Ø Insert the pending network cable into the transmitter RJ45 socket in

the middle and the other end into the receiver socket or remote unit,

BNC coax into BNC socket.

Ø Select the “CONT” menu and press “ ” to test with test results

shown below:

UTP STP

!"#$%

▲

Type:Ca t5e/6/6a

Press ENTER Test

▲

Type:Cat.5e/6/6a

Start Test

Un it : Meter

Le ngth

6

Short disconnection crossover

Ø Telephone cable test results shown below:

6p6c 6p4c 6p2c

Ø BNC coax test results shown below:

Ø If the display "cable open " indicates that the network jumper is all

open or the other end of the network cable is not inserted in the test

remote or receiver, or the test interface is wrong.

3.2 Measure Cable Length：

During the test, the power consumption is large and the

battery power decline is fast. the test time should be interval

until the battery power is restored.

Ø Insert the pending network cable into the transmitter socket in the

left. Do not plug in any socket at the other end.

Ø Select the “Length” menu and press “ ” to test with test results

shown below:

▲

CONT

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Ø Units of length can select “Meter” “Yard” “Foot” under the Units

menu.

Ø Because each pair of wire has different twisted density, it is normal

to measure the numbers slightly different, which can be measured

many times to get the same measurement value.

Ø From the image, it means there exists problem at 12.1m. To make

sure it is short or broke there, you can test it continuity to know

details.

■ NOTE: Kind reminds when measuring cable length.

1. The network cable to be tested must be de-energized.

2. Disconnect the cable at the far end, no remote, no other

devices connected!

3. The range must be 2.5m—200m, otherwise , it would be

display 0 meter.

3.3 Cables tracking：

Ø Connect one end of the target cable to the RJ45 socket in the

middle of the transmitter, BNC coax into BNC socket.

Ø Select the “SCAN” menu and press “ ” to transmit and shown

below:

▲

Typ e:Cat.5e/6/6a

Start Te st

Un it : Meter

Le ngth

▲

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Ø The receiver function switch is switched on to the "Scan" or

"lighting" position.

Ø The receiver sensitivity knob is rotated clockwise to the maximum

(the arrow tail is above).

Ø Press and hold the "SCAN" button in the middle of the receiver,

while the probe is close to the network cable to be measured, the

speaker emits a clear "beep-beep " sound, and the network cable

contacted by the receiver probe is the target network cable to find.

Ø When tracking a cable in the working network, due to the network

switch, there may be audio signals adjacent to the target cable,

each cable can be removed to find the target cable or try to rotate

the receiver sensitivity knob counterclockwise to reduce the

reception sensitivity to find the target cable.

3.4 Port Flash & Switch details testing:

This function transmits the pulsing signal through the transmitter to

flashing the LED indicator of the network switch, then can locate the

interface of the network cable on the switch. At the same time, the

network switch working performance can be tested.

Do not connect with DC voltage over 60V or any AC

voltage live circuit equipment or it will result damage.

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Ø Insert the network cable into the transmitter socket in the left.

Ø Select the “Flash” menu and press “ ” to start testing.

Ø The 2 indicators on the RJ45 jack port will be lit and flash. Then

observe the ports on switch, if there is a port whose flash frequency

is 3 secs, and slower than all the other ports, it tells you the port is

target one you’re looking for.

Ø Also, the device can tell you the connected switch’s information,

such as its speed (10M/100M/1000M), transmitting modes (FDX:

full duplex/ HDX: half duplex) Protocol (Auto- Nego / Non-Auto-

Nego). See the graph for ref. as below.

Ø If "Check Port" is displayed, the reasons may be: 1. Network cable

insertion error and test interface; 2. Network cable is not connected

to the switch; 3. Network cable fault. 4. Switch, router fault or

incompatibility with the instrument. 5. This instrument fails.

3.5 Setting:

This function can set the language (Chinese / English), backlight time,

automatic shutdown time, contrast, etc.

Ø Select the “Setting” menu and press “ ” to start setting.

Ø Backlight setting:

Adjust the backlight time among 5S, 10S, 15S, on and off.

Ch eck Port

&'(()*+

,

10

Ø Auto-off time setting:

Adjust the Auto-off time among 15mins, 30mins, 1hour, off.

Ø Contrast setting:

Press the “ ” to setting. And press “ ” or “ ”

key to adjust the contrast to suit yourself.

Ø Version information:

To c he c k v e rs io n in f or ma t io n o f so ftw a re a n d ha r dw a re . a s a bo v e.

3.6 Non-contact Voltage detection (NCV)

This function is used to determine whether the wire or equipment has

an AC voltage, the detection range AC90-1000V (50 / 60Hz).

Ø Push the receiver function switch to the NCV position, put the

receiver probe close to the target body, if the AC voltage is

detected, the speaker emits an alarm sound of different frequency,

the speaker rapid sound indicates a high voltage or fire line, the

slow sound may be low voltage or zero line.

-

./0

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Note:

l This function is for reference, the voltage may still remain even

there is no detection showed up. There are many possible

factors might block the detection.

l There are external sources (like flashlight and motor) may trigger

non-contact voltage detection.

3.7 Flashlight

Ø Push the receiver switch to the “ ” position, and the front LED

auxiliary lighting LED is turned on for lighting with insufficient light.

Ø Only for lighting in the case of insufficient light, do not use it for a

long time to save the battery.

4. Battery Replacement

Ø When the battery symbol on the transmitter display is low, replace

the battery. When the receiver power indicator flashes, the battery

is low, replace the battery.

Ø The battery is 6F22 or 6LR61 9V battery, and the better

performance 6LR61 alkaline battery is recommended.

Ø Turn off the Transmitter or Receiver and disconnect all test

leads before replacing the battery.

Ø Properly install in the case to power the Transmitter and

Receiver.

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5. Accessories

Parts

QTY

Parts

QTY

Transmitter

1

RJ45—RJ45 Cable

2

Receiver

1

RJ45- alligator clips

1

Remote Unit

1

User Manual

1

Earphone

1

Storage bag

1

6.Specification

MT-7071N Transmitter Specifications

Display

LCD 128×64 Dots (50×27.5mm)

Language

Chinese、English

Connectors

RJ45 × 2，BNC × 1

Battery

9V: 6LR61 or 6F22

Cable Map

Cable Type

CAT.5E; CAT.6; CAT.6A; CAT.7

cable；Telephone cable；BNC coax

Max range

300m

Display

LCD: R&M 1-8/G

Cable Length

Measurement

Cable Type

CAT.5E; CAT.6;cable；Telephone

cable

Range

2.5m—200m

Unit

meters/ yards / feet, selectable

option

Accuracy

±5%

Cables

Tracing

Cable Type

CAT.5E; CAT.6; CAT.6A; CAT.7

cable; telephone cable；BNC coax

Scan range

600 m

Frequency

455KHz

Max.

Signal

9±1Vp-p

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Voltage

Port Flash

Flash

frequency

3sec/time

Link test

10M/100M/1000M; FDX/HDX; Auto-

Nego/Non-Auto Nego.

Back Light

5s/10s/15s/on/off

Auto OFF

15min/30min/1 hour/off

Working

current

≤150mA

Protection

≤60V DC

Dimension

138 × 80 × 35mm

MT-7071N Receiver Specifications

Switch

4 positions

Key press

1

Response

frequency

455KHz

Sound dB

≥85dB

Receiver

signal

Elimination of noise

Tone mode

1 mode

Sensitivity

knob-operated control

Indicator

LED ×3

Flashlight

lighting

LED×1

Connectors

RJ45× 1

Earphone

jack

Φ3.5mm×1

Battery

9V: 6LR61 or 6F22

Working

≤100mA

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current

Dimension

202 × 50 × 32mm

Remote Unit Specification

Connectors

RJ45× 1，BNC× 1

Dimension

106×32×30mm

7. MAINTENANCE & TROUBLE SHOOTING

Warning:

• Turn off the Transmitter or Receiver and disconnect all test leads

before replacing the battery.

Caution:

• To avoid damaging the case, do not use solvents or abrasive

cleansers. Clean the case with a soft cloth dampened with water or

a mild soap solution.

Trouble shooting

Possible Problems

Trouble shooting

The signal from

Transmitter can not be

detected by receiver

1. Shortage of battery power: Check

the battery on both Transmitter and

receiver. If the battery voltage is less

than 7.0V, please replace new battery

2. Make sure the switch position on

receiver is “SCAN” or “LED”. The

SCAN function will not work if the

switch is at “NCV” position.

3. Device damaged: please return the

product to the place you purchased

the product for maintenance

No signal received

from Transmitter on

Live

There might be conflict between the

signal from telephone office and the

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telecommunication

device testing

signal from Transmitter. Please turn

off the telephone exchange device.

Incorrect cable

mapping result

LCD display broken: please return the

product to the place you purchased

the product for maintenance.

Improper connection of networking or

telephone cables: please reconnect

the cables to RJ45 or BNC individual

jacks.

Others

Device damaged: please return the

product to the place you purchased

the product for maintenance.

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MT-7071N LCD 音頻線長查線器使用說明書

感謝購買和使⽤ MT-7071N LCD ⾳頻線⾧查線器，使⽤本儀器前請仔細

閱讀說明書並注意如下事項，閱後請妥善保存,以備⽇後查閱。

注意事項：

●本產品使⽤ 9V 6LR61 或 6F22 電池供電，推薦使⽤ 6LR61 電池。

●為節省電池，使⽤完畢請⽴即關機。如⾧時間不使⽤，請取出發射器

和接收器內的電池，以免電池漏液造成產品損壞。

●本產品嚴禁接⼊超過保護電壓 DC 60V 或任何交流電壓的帶電線路使⽤

●雷⾬天切勿進⾏通信線路操作，以防雷擊，造成設備或⼈⾝傷害。

●不要將此產品⾧時間暴露在陽光直射之下。

●不要將此產品放置在多塵、潮濕及超過 40℃溫度的地⽅。

●請勿隨便拆卸此產品，維修應由專業⼈員進⾏。

⼀、产品特点概述：

MT-7071N LCD ⾳頻線⾧查線器，LCD 液晶顯⽰，中⽂/英⽂語⾔選擇

介⾯。具有抗⼲擾⾳頻尋線，對線測試（導通、短路、斷路、交叉），

網線線⾧測試（2.5-200 ⽶），端⼜閃爍並檢測網絡交換機性能等功能；可

設置：背光點亮時間、⾃動關機時間、⾧度單位⽶/英呎/碼等，可以接

⼊普通網絡交換機、PoE 網絡交換機帶電尋線。本產品適⽤於網絡佈

線、網絡維護與故障排查等。

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⼆、產品⽰意圖

發射器及測試遠端產品⽰意圖

① RJ45(帶LED)插座：網線線⾧測試、端⼜閃爍測試插座

② RJ45 插座：對線、尋線測試插座

③ BNC 同軸電纜尋線、對線測試插座

④ LCD 顯⽰屏

⑤ “ ” 鍵：確定（ENTER）鍵，按此鍵進⾏測試選擇或設定

⑥ “ ”鍵：向上或向左移動鍵

⑦ “ ”鍵：返回 RETURN 鍵

⑧ “ ”開/關機鍵：按此鍵，開機；⾧按此鍵，關機

⑨ “ ”鍵：向下或向右移動鍵

⑩ 電池蓋

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發射器及測試遠端產品⽰意圖

① ⾳頻接收探頭

② 輔助照明LED

③ 電源指⽰燈

④ NCV ⾮接觸驗電指⽰燈

⑤ 尋線功能指⽰燈

⑥ 靈敏度調節旋鈕

⑦ ⽿機插座

⑧ 檔位開關：從上到下依次為 LED 照明/NCV/OFF/SCAN

⑨ 揚聲器

⑩ SCAN鍵：尋線時按住此鍵，接收信號，鬆開，不接收信號

⑪ RJ45：對線測試使⽤

⑫ 電池蓋

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三、使⽤說明

按“ ”鍵開機，進⼊如下畫⾯，按“ ”或“ ”鍵選擇菜單，按

“”進⾏測試，按“ ”鍵返回。

注意：LCD 顯⽰屏上箭頭“▲”指⽰測試網線接插位置：

待測網線應插⼊中間插座待測網線應插⼊左側插座

對線：⽤於檢測網絡跳線連接情況及連接故障判斷，如“斷路”“交叉”“短

路”等。

⾧度：⽤於檢測網線、電話線⾧度，測量範圍 2.5-200 ⽶，只需網線⼀端

插⼊發射器左側 RJ45 插座（①），另外⼀端不可連接測試遠端、接

收器或任何網絡接⼜，更不可帶電測量，否則可能燒毀儀器。

尋線：需配合⾳頻接收器⼀起使⽤，⽤於尋找⽬標網線。發射器發射⾳

頻信號，接收器接收信號。

閃爍：⽤於查找⽬標網線另外⼀端在交換機上對應的接⼜，發射信號使

交換機接⼜燈閃爍，同時測試交換機⼯作性能：10M/100M/1000M

半雙⼯/全雙⼯；⾃協商/⾮⾃協商等。

設置：設置發射器功能參數，可設置語⾔（中⽂/英⽂），背光時間，⾃

動關機時間，對⽐度等。

▲

类型：网络线

按下ENTER测试

▲

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3.1 對線測試：

Ø 將待測網絡跳線或電話跳線兩端分別插⼊發射器中間 RJ45 插座（②）

和測試遠端或接收器 RJ45 插座；BNC 跳線插入 BNC 插座。

Ø ⾳頻發射器選擇“對線”菜單，然後按“ ”進⼊測試菜單，按“ ”或

“ ”鍵選擇測試類型，“網絡線 ”或“ BNC ”,確認後按“ ”進⾏測

試，測試結果如下圖顯⽰：

正常連接 UTP STP

短路斷線交叉

Ø 網絡跳線故障顯⽰，優先顯⽰短路狀況，當有短路故障時，斷線及交

叉故障不顯⽰，斷線和交叉故障可同時顯⽰。

Ø 電話線連接如下圖

6P6C 電話線 6P4C 電話線 6P2C 電話線

Ø BNC 線連接如下圖

Ø 如顯⽰“線纜開路或未連接”表⽰網絡跳線全部開路或者網線另外⼀端沒

▲

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