MT-7610
Optical Time Domain Reflectometer
USER'S GUIDE
EnglishEnglish
Test Equipment Depot - 800.517.8431 - 99 Washington Street - Melrose,
TestEquipmentDepot.com
MA 02176
WARNINGWARNING
You are cautioned that changes or modifications not espressly
approved in this document could void yout authority to operate this
equipment.
To reduce the risk of fire or electric shock,do not expose this
apparatus to rain or moisture.
VISIBLE LASER RADIATIONVISIBLE LASER RADIATION
AVOD EYE OR SKIN EXPOSUREAVOD EYE OR SKIN EXPOSURE
TO DIRECT OR SCATTERED RADIATIONTO DIRECT OR SCATTERED RADIATION
SEMICONDUCTOR LASERSEMICONDUCTOR LASER
Wavelength:635-650nmWavelength:635-650nm
INVISIBLE LASER RADIATIONINVISIBLE LASER RADIATION
AVOD EYE OR SKIN EXPOSUREAVOD EYE OR SKIN EXPOSURE
TO DIRECT OR SCATTERED RADIATIONTO DIRECT OR SCATTERED RADIATION
SEMICONDUCTOR LASERSEMICONDUCTOR LASER
Wavelength:800-1700nmWavelength:800-1700nm
CLASS I LASER PRODUCTCLASS I LASER PRODUCT
To avoid electrical shock, do not open the cabinet. Refer servicing to qualified personnel only.
NOTENOTE
As the laser is harmful to the eyes, do not attempt to disassemble the cabinet.
Precautions for Use
Use batteries
At the same time, can not use different style or different capacitance batteries. And only charge the rechargeable batteries.
Avoiding condensation problems
As much as possible, avoid sudden temperature changes. Do not attempt to use the drive immediately after moving it
from a cold to a warm location, to raising the room temperature suddenly, as condensation may form with in the drive. If the
temperature changes suddenly while using the drive,
Stop using it and take out batteries for at least an hour.
Storage
When long time no use,must take out the batteries to avoid destroying the device.
1
Contents
1. Warning and Note
2. Standard
3. Product presentation
3.1 Description
3.2 On/off
3.2 Measurement Interface
3.3 Real-time and average measurement
3.4 Event list
3.5 Real-time measurement tips
3.6 Cursor selection and waveform zoom in/out
3.5 Menu
3.5.1 Menu-File menu
3.5.2 Menu-Measure settings
3.5.3 Menu-System settings
3.5.4 Menu-Module settings
3.5.5 Menu- About
3.6 TF card and USB communication 20
3.7 User upgrading
3.8 Charging
3.9 Detail parameters
1
3
4
4
5
6
7
8
9
10
11
12
16
17
18
19
21
22
23
Standard
Host(with TF card)
Lithium battery
Power adapter
Carrying bag
Power cable
3
USB cable
18
19
16
1
2
Description
23
20
3
21
22
4
5
12
13 14
15
6
7
8
9
10
11
17
4
OTDR optic fiber connector
1
VFL optic fiber connector
2
3
LCD
4
Zoom control button
5
Full screen button
6
Menu button
7
Power button
Confirming button
8
9
Cancel button
10
Real-time measurement button
Average measurement button
11
Up button
12
13
Left button
Right button
14
15
Down button
File operation button
16
17
Cursor select button
Power adapter socket
18
Charge indicator
19
20
Anti-dust cover
21
USB interface
TF(micro SD) card slot
22
Support frame
23
MT-7601MT-7601
Optical Time Domain Reflectometer
MENU
File
SCAN
Marker
On/off
Button is used to turn on/off the device. Keep pressing it for 2 seconds
to turn on device. Short press it again to turn off the device.
Press button to
SCAN
start measuring. But user should modify
measurement setting by real
ENTER
ESC
REAL
requirement before test start.
5
2012-01-01 WED 21:25
A-B: ---.---Km --.--dB --.--dB/Km Km/divA-B: ---.---Km --.--dB --.--dB/Km Km/div
No. Distance Loss
Reflection
dB/Km
File Info:
*
C.Loss
2012-01-01 WED 21:25
Date and time
There are 10x10 grids in waveform region.
Horizontal grids mean distance, vertical grids
mean dB value. As shown in figure,
each horizontal grid represents 0.2km, each
vertical grid represents 4dB.
Measurement Interface
2012-01-01 WED 21:25
40.00
36.00
A:0.000Km
32.00
B:0.000Km
28.00
24.00
20.00
16.00
12.00
8.00
4.00
0.00
A-B: 000.000Km 00.00dB 00.00dB/Km 0.200Km/divA-B: 000.000Km 00.00dB 00.00dB/Km 0.200Km/div
No. Distance Loss
Reflection
1/3 0.000 0.00 -28.00 --.-- 0.00
Measure Info: 1550nm 2.0Km 10ns
174622_0001.sor
C.Loss
dB/Km
Power
174622_0001.sor
File name
Waveform region
Events list
A-B: 000.000Km 00.00dB 00.00dB/Km 0.200Km/div
The distance and
Attenuation between
A and B cursor
Every horizontal
grid is 0.2Km
6
Measure info
Measurement setting info
MT-7601MT-7601
Optical Time Domain Reflectometer
MENU
File
SCAN
Marker
Real-time and average measurement
Real-time measurement can quickly judge basic faults of optical fiber. Press
REAL
button to start real-time measuring. During measuring, you can change
range, zoom in or zoom out . Press button again or button to
REAL
stop. The device will not analyses event after real-time measurement in default.
Unless you turn on RT analyse in System settings, the device will analyse events
ENTER
ESC
REAL
according to the last refreshed waveform.
Average measurement can judge the line condition more accurate. It can get a
better SNR and fits high requirement circuit. Press button to start. User can
SCAN
set measurement time from 5 second to 180 second. The device analyses events and
generates event list automatically. Press button during measuring, device
ESC
will stop measuring, analyses events and generates event list automatically.
7
ESC
Event list
No. Dis. Loss
1/3 0.000 0.00 -28.00 --.-- 0.00
Event list on main interface
Event List
No.
1/6
2/6
3/6
4/6
5/6
6/6
Press key ENTER to locate the corresponding event.
Dis.
0.000
0.940
4.301
5.589
18.712
39.809
Loss
0.00
0.08
0.12
-.--
-0.05
-.--
Event List
Ref.
Ref.
-51.74
-51.74
-54.67
-.--
-41.03
-46.02
dB/Km C.Loss
dB/Km
C.Loss
-.--
0.00
0.24
0.26
0.28
1.18
-.--
0.22
4.07
0.21
9.41
-.--
After measurement or open a waveform in memory, there is
event list on the bottom of waveform interface. Press
ENTER
button to show the whole event list. Six types of events as
followed:
Optic fiber start
Reflection event
Attenuation event
Mix event
Gain event
optic fiber ending
Press Up or Down button to select an event which needs to be
located by cursor on the waveform. Then press button
ENTER
to return to waveform interface. The cursor will stay on the
position of the selected event. Press button to return to
ESC
waveform interface.
8
Te
st Equ
Real-time measurement tips
The device supports user to change measurement range during real-time
measurement. Start Real-time measuring function and press Up or Down button to
MT-7601MT-7601
increase or decrease the range. And it also supports to change the cursor position
and zoom in/out waveform in realtime, which means you can zoom in partial
waveform while measuring to judge the network fault.
Optical Time Domain Reflectometer
ENTER
ESC
MENU
REAL
File
SCAN
Marker
ipment Depot - 800.517.8431 - 99 Washington Street - Melrose, MA 02176
TestEquipmentDepot.com
9
Cursor selection and waveform zoom in/out
MT-7601MT-7601
Optical Time Domain Reflectometer
MENU
File
SCAN
Marker
This device has two cursors, A and B.
Default distance is 0m, activated cursor
turned to bright red. Press
Marker
button switch to another cursor. Press Left
or Right button to move cursor. Press Up or
Down button to previous or next event. You
ENTER
ESC
REAL
can calculate the distance and attenuation
between two cursors.
2012-01-01 WED 21:25
40.00
36.00
A:0.000Km
32.00
28.00
24.00
20.00
16.00
12.00
8.00
4.00
0.00
A-B: 000.000Km 00.00dB 00.00dB/Km 0.200Km/divA-B: 000.000Km 00.00dB 00.00dB/Km 0.200Km/div
No. Distance Loss
1/3 0.000 0.00 -28.00 --.-- 0.00
Measure Info: 1550nm 2.0Km 10ns
B:0.583Km
Reflection dB/Km
C.Loss
*
Keep pressing , then press and Up/Down button to zoom in or out
waveform vertically. Keep pressing , then press Left/Right button to zoom in
or out horizontally. Press button to return to full screen display. Notice: the
focus of zooming is the location of the activated cursor.
10
MT-7601MT-7601
Optical Time Domain Reflectometer
MENU
File
SCAN
Marker
Menu
System Set.
Measure Set.
File
Open...
Format SD Card...
Press key MENU to switch the menu tag.
ENTER
ESC
REAL
Measure Set.
File
Wavelength
Scan Mode
File
Range
Pulse Width
Average Time
Splice Loss
Reflection Threshold
End Threshold
Refractive Rate
Scatter Coefficient
Press key ENTER to edit settings.
Module
About
System Set.
Module
System Settings
1550
Manual
Measure Set.
System Set.
80
10000
Auto Power Off 10min
120
Auto Name On
0.05
Optical Detector
RT Analyse
brightness 60
Date
Time
Length Unit
Factory Settings No
On
Measure Set.
File
65.0
Off
2.0
VFL
1.46832
2013 11 02
OPM
File
52.1
21 57
Firmware Version:
Metric
Software Version:
FPGA Version:
Wavelength
Press key ENTER to enable the VFL.
CPU ID
Language:
11
nm
Km
ns
s
dB
dB
dB
dB
Power
Close
Off
:
1310
About
System Set.
Module
Measure Set.
nm
About
Module
About
System Set.
Module
TEN1A20V35_MAIN_V1.2
--.----.--
dBm
TEN1A20V35_ANALOG_V0.3
mw
--.----.--
TEN1A20V35_TFT_V1.1
SEN1A20V35_MAIN_V1.2.0
FEN1A20V35_MAIN_V1.x.0
A4B75978
English
There are five pages of menu
which used to configure parameters.
Under waveform interface, press
MENU
button to switch the
About
five menus cyclically.
The five menus are:
1. File menu
2. Measure settings menu
3. System settings menu
4. Module settings menu
5. About
Menu-File menu
Measure Set.
File
Open...
Format SD Card...
System Set.
Module
About
File
20140615
Measure Set.
System Set.
20140617
20140618
20140619 2014-06-19
20140622
Warnning
Press key MENU to switch the menu tag.
Enter File menu, there are two options,
"open" and "formatting SD card". Select
one option and press button to
ENTER
enter the corresponding operation.
Attention: formatting SD card operation will delete all files and cannot recover, please be cautious.
Are you sure to format the SD card?
OK
12
Cancel
Module
About
2014-06-15
2014-06-17
2014-06-18
2014-06-22
Menu-File menu
Measure Set.
File
20140615
20140617
20140618
20140619 2014-06-19
20140622
System Set.
Measure Set.
File
20140615
20140617
20140618
20140619 2014-06-19
20140622
Module
2014-06-15
2014-06-17
2014-06-18
System Set.
2014-06-22
About
Module
About
2014-06-15
2014-06-17
2014-06-18
2014-06-22
13
Select "open" option, there are folders. The folder
name is the date of the file saved, which is generated
automatically by system. Files measured in the same
day will be stored in the same folder. Folder can only
be delete, but not rename. And must delete all files
before delete the folder.
Press Up or Down button to select a folder and
press button to open delete tip. Then press
button to finish deleting, or press
MENU
ESC
or button to cancel.
Menu-File menu
Measure Set.
File
.
..
133210_0001.sor
133210_0003.sor
133210_0004.sor
File Info: 1550nm 370m 10ns
System Set.
Measure Set.
File
.
..
133210_0001.sor
133210_0003.sor
133210_0004.sor
File Info 1550nm 370m 10ns
Module
System Set.
About
2014-06-18
Module
2014-06-18133210_0002.sor
2014-06-18
2014-06-18
Delete...
Rename...
About
2014-06-18
2014-06-18133210_0002.sor
2014-06-18
2014-06-18
14
Select one folder to display all files inside. Press Up
or Down button to select one file and press
button to display it in main interface. The file
information at the bottom is the file's main
measurement setting.
Press button can delete or rename the file.
Filename can make up of 23 digits, alphabets and
13
special symbols at most. The last four numbers_xxxx is
generated by "Automatic naming"function. Shut down
this function will not generate.
ENTER
Menu-File menu
Save
File Name:
140950
Caps back Save
a b c d e
h i j k l m n
o p q r s
v w x y z
File Name:
140950
a b c d e
h i j k l m n
o p q r s
v w x y z
f
Caps back Save
t
.
g
u
Rename
7
4
1 2
f
_
t
.
8 9
5
g
0
u
6
3
#
7
4
1 2
_
8 9
5
0
15
When finish measuring an optic fiber, press
File
button to enter storage interface.
Default filename is hour/minute/second of first time
storage. Press Up/Down/Left/Right button to select
alphabets, digits and symbols on soft keyboard. You
can input 23 alphabets at most. If "Automatic
naming" is enabled, the filename will automatically
6
generated with four digits. Without shutting down
3
the device, the following stored file's name will
#
automatically plus 1. The file format is .SOR.
On file recalling interface, press Right button can
Modify filename, as the same operations above.
Menu-Measure settings
Measure Set.
File
Wavelength
Scan Mode
Range
Pulse Width
Average Time
Splice Loss
Reflection Threshold
End Threshold
Refractive Rate
Scatter Coefficient
Splice loss---treat as an event when the loss is higher than setting value.
Reflection threshold---treat as an event when the reflection is higher than setting value.
End threshold---treat as the end of optic fiber when the loss is higher than setting value.
Refractive rate---represent the average refractive index of entire optic fiber.
Scatter coefficient--- the intrinsic value of Rayleigh Scattering.
System Set.
1550
Manual
40
1000
120
0.05
65.0
2.0
1.46832
52.1
Module
About
nm
Km
ns
s
dB
dB
dB
dB
Measure settings menu is used to set relative measurement data, which
the judgment of events list is based on. Wrong setting might leads to wrong or
missing events.
Wavelength---wavelength of laser.
Scan mode---manual and auto mode. Under auto mode, it will match the
distance, range and pulse width.
Range---match with the length of measured optic fiber, usually over one level.
Pulse width---set the pulse width of output laser. Usually, small pulse width can
measure close event, large pulse width can measure remote distance, but
enlarge event's blind area.
Average time--- can set between 5 second and 180 second as average
measurement time.
16
Menu-System settings
Measure Set.
File
Auto Power Off
Auto Name
Optical Dectector
RT Analyse Off
Brightness
Date
Time
Length Unit
Factory Settings
Press key ENTER to edit settings.
System Set.
Module
10min
On
On
60
2013
21 57
:
Metric
No
11 02
About
System settings menu is used to set the device's basic functions.
Auto Power Off--- set time of automatic off or cancel this function.
Auto Name---name automatically when file is saving, can cancel this
function.
Optical Detector --- detect whether there is signal in optic fiber or
not before measuring.
RT Analyse --- set whether analyses events after real-time measuring
or not.
Brightness--- adjust brightness of LCD.
Date--- set year, month, day.
Time ---set hour, minute.
Length unit --- default is metric units.
Factory settings --- is used in resetting to default , and has no effect
on the set time and stored data.
17
Menu-Module settings
Measure Set.
File
VFL
OPM
Wavelength
Press key ENTER to enable the VFL.
Test Equ
System Set.
Close
Off
Power
1310
nm
ipment Depot - 800.517.8431 - 99 Washington Street - Melrose, MA 02176
Module
--.----.--
--.----.--
About
Module settings menu is used to set the Visual Fault Laser, Optical
Power Meter and wavelength.
VFL--- cyclically control the red laser Open -- Blink -- Close.
OPM( Optional) --- used as an ordinary optical power meter, detect
dBm
mw
range is from -60dBm to +3dBm, press Enter button to set the OPM
function On or Off, display dBm and mw values. There are six
calibration wavelengths: 850/1300/1310/1490/1550/1625nm.
TestEquipmentDepot.com
18
Menu- About
Measure Set.
File
Firmware V ersion:
Software Version:
FPGA Version:
CPU ID
Language:
System Set.
TEN1A20V35_MAIN_V1.2
TEN1A20V35_ANALOG_V0.3
TEN1A20V35_TFT_V1.1
SEN1A20V35_MAIN_V1.2.0
FEN1A20V35_MAIN_V1.x.0
A4B75978
English
Module
About
This menu is version details about device's configuration of
hardware and software. CPU number is used to generate upgrading
code, which should inform distributor or factory before software
upgrading.
19
TF card and USB communication
All measured waveforms are stored in TF card. Using
mini USB cable can store data to PC. PC will show a new
disk icon, data inside. According to filename, user can
store or recall files.
2012-01-01 WED 21:25
40.00
36.00
A:0.000Km
32.00
B:0.000Km
28.00
24.00
20.00
16.00
12.00
8.00
4.00
0.00
A-B: 000.000Km 00.00dB 00.00dB/Km 0.200Km/divA-B: 000.000Km 00.00dB 00.00dB/Km 0.200Km/div
No.
1/3 0.000 0.00 -28.00 --.-- 0.00
Measure Info: 1550nm 2.0Km 10ns
Distance
Loss
Reflection
dB/Km
*
C.Loss
20
User upgrading
Measure Set.
File
Firmware Version:
Software Version:
FPGA Version:
CPU ID
Language:
System Set.
TEN1A20V35_MAIN_V1.2
TEN1A20V35_ANALOG_V0.3
TEN1A20V35_TFT_V1.1
SEN1A20V35_MAIN_V1.2.0
FEN1A20V35_MAIN_V1.x.0
A4B75978
English
Module
Optical Time Domain Reflectometer
MENU
About
When device needs upgrading, user does not need to send it
back to factory. Prepare materials before upgrading as followed:
1. CPU ID
2. TF(micro SD) card, capacity is less than 16GB
MT-7601MT-7601
Inform the CPU ID to distributor or factory, you can get upgrading
firmware only for your device. Store the firmware to TF card through
computer. Insert TF card to device when it is power off. Press
MENU
and button and hold them, then press
ENTER
ESC
REAL
File
SCAN
Marker
can delete upgrading file in TF card when finish upgrading.
button to turn on the device, upgrading is starting. You
21
SCAN
Charging
2012-01-01 WED 21:25
40.00
36.00
A:0.000Km
32.00
B:0.000Km
28.00
24.00
20.00
16.00
12.00
8.00
4.00
0.00
A-B: 000.000Km 00.00dB 00.00dB/Km 0.200Km/divA-B: 000.000Km 00.00dB 00.00dB/Km 0.200Km/div
No.
Distance
Reflection
dB/Km
C.Loss
Loss
1/3 0.000 0.00 -28.00 --.-- 0.00
Measure Info: 1550nm 2.0Km 10ns
This device has lithium batteries inside, and can only use the
*
power adapter from factory to charge it. Insert the adapter to device,
and finish charging in 8-10 hours. Red charge indicator means
charging, while green means finish.
22
Optical fiber type
Dynamic range
Wavelength
Optical fiber connector
Display
Display resolution
Distance range (km)
Distance uncertainty (m)
Pulse width
Measurement time
Attenuation blind area
Event blind area
Loss threshold (dB)
Loss resolution (dB)
Sampling resolution (m)
Sampling points
Typical real-time refresh (Hz)
data storage
communication connector
Detail parameters
MT-7610A MT-7610F MT-7610G
SM optical fiber
24dB(1310nm)/22dB(1550nm)
1310nm 20nm, 1550nm 20nm
FC/PC (SC/PC ST/PC Optional)SC/PC (FC/PC ST/PC Optional)
3.5 inch color LCD
320x240
0.37~80
(0.8+0.005%*distance+Sampling resolution)
10ns~10us
5s~180s
15m(@minimum plus width)
3m(@minimum plus width)
0.05dB
0.01dB
0.4 to 1.6
Up to 70866
2
micro SD card(4GB), support 16GB , 25000 records
Mini USB
23
VFL power
Connector
Power Source
Battery worktime
Power supply
Plug type
Auto power Off
Low Battery Warning
Operation Voice Prompts
Back Light
Body Protection
Operation Temperature
Storage Temperature
Size
Weight
Individual packing
Detail parameters
MT-7610A MT-7610F MT-7610G
1mW(650nm 10nm)
FC/PC 2.5mm UPP
Lithium Polymer battery 7.4v 3100mAh
standby>15hours, mesurement>8 hours
adapter: INPUT AC 100~240 50/60Hz; OUTPUT: DC10.5V/1.9A
Yes
Low battery energy
No
Yes
Yes
0~+50 ; <90%RH
-20~+70 ; <90%RH
195 * 110 * 60mm
600g
Color box
Test Equipm
ent Depot - 800.517.8431 - 99 Washington Street - Melrose, MA 02176
TestEquipmentDepot.com
24
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