Leader LT4670 User manual

LT4670
SYNC GENERATOR
LT4670-SER01 GNSS
LT4670-SER02 SDI
LT4670-SER03 PTP
LT4670-SER11 POWER UNIT
LT4670-SER21 4K 3G-Quad Link
Instruction Manual
Thank you for your purchase.
Please read this instruction manual and the included “GENERAL SAFETY SUMMARY” thoroughly, and use the
product safely.

TABLE OF CONTENTS
GENERAL SAFETY SUMMARY .................................................................................. I
1INTRODUCTION............................................................................................ 1
1.1 User Registration................................................................................................................1
1.2 Scope of Warranty..............................................................................................................1
1.3 Trademark Acknowledgments ..............................................................................................1
1.4 Operating Precautions.........................................................................................................2
1.4.1 Power Supply Voltage ..................................................................................................2
1.4.2 Maximum Allowable Input Voltage.................................................................................2
1.4.3 Mechanical Shock ........................................................................................................2
1.4.4 Electrostatic Damage ...................................................................................................2
1.4.5 Warming Up................................................................................................................2
2PRODUCT CONFIGURATION............................................................................ 3
2.1 Main Unit ..........................................................................................................................3
2.2 Hardware Options ..............................................................................................................3
2.3 Software Options ...............................................................................................................4
3SPECIFICATIONS........................................................................................... 5
3.1 General .............................................................................................................................5
3.2 Features............................................................................................................................5
3.2.1 LT4670.......................................................................................................................5
3.2.2 LT4670-SER01 (GNSS).................................................................................................7
3.2.3 LT4670-SER02 (SDI)....................................................................................................7
3.2.4 LT4670-SER03 (PTP) ...................................................................................................8
3.2.5 LT4670-SER11 (POWER UNIT)......................................................................................9
3.2.6 LT4670-SER21 (4K 3G-Quad Link).................................................................................9
3.3 Standards........................................................................................................................11
3.3.1 LT4670..................................................................................................................... 11
3.3.2 LT4670-SER01 (GNSS)...............................................................................................18
3.3.3 LT4670-SER02 (SDI)..................................................................................................19
3.3.4 LT4670-SER03 (PTP) .................................................................................................24
3.3.5 LT4670-SER11 (POWER UNIT)....................................................................................25
3.3.6 LT4670-SER21 (4K 3G-Quad Link)............................................................................... 26
4PANEL DESCRIPTION....................................................................................30
4.1 Front Panel...................................................................................................................... 30
4.2 Rear Panel.......................................................................................................................33
5PREPARATIONS............................................................................................36
5.1 Turning the Power On .......................................................................................................36

5.1.1 Turning the Instrument On and Off ..............................................................................36
5.1.2 Mounting the AC Cord Clamp ......................................................................................37
5.1.3 Adding the Power Supply Unit (SER11) ........................................................................ 38
5.2 Rack Mounting .................................................................................................................40
6BASIC OPERATION .......................................................................................41
6.1 Operation Basics ..............................................................................................................41
6.1.1 Connecting a USB Memory Device ...............................................................................41
6.1.2 Enabling the Key Lock ................................................................................................ 41
6.1.3 Menu Operations ....................................................................................................... 42
6.2 Signal Input (Genlock Operation) ....................................................................................... 45
6.2.1 Internal Mode ...........................................................................................................45
6.2.2 Genlock Mode ...........................................................................................................46
6.2.3 CW Mode.................................................................................................................. 48
6.2.4 GNSS mode (SER01)..................................................................................................50
6.2.5 PTP mode (SER03) .................................................................................................... 52
6.3 SDI Signal Output ............................................................................................................55
6.3.1 Analog Black Signal Output......................................................................................... 55
6.3.2 Audio Signal Output...................................................................................................55
6.3.3 CW/1PPS Signal Output..............................................................................................55
6.3.4 SDI Signal Output (SER02) .........................................................................................55
6.3.5 PTP Signal Output (SER03).........................................................................................56
6.4 LTC Signal I/O and Remote Control ....................................................................................58
6.5 Alarm Display ..................................................................................................................60
6.6 L-SYNC ........................................................................................................................... 61
7REFERENCE CONFIG MENU ...........................................................................63
7.1 Selecting the Reference Signal ...........................................................................................63
7.2 Selecting the Genlock Format ............................................................................................ 64
7.3 Setting the Genlock Timing................................................................................................ 65
7.4 Selecting the Satellite (SER01)...........................................................................................65
7.5 Setting the Recovery Operation.......................................................................................... 66
7.5.1 Selecting the Recovery Mode ......................................................................................66
7.5.2 Selecting the Relock Speed (Auto) ............................................................................... 66
7.5.3 Selecting the Relock Speed (Manual)............................................................................67
7.5.4 Power-on Settings .....................................................................................................67
7.6 Setting the Relock ............................................................................................................67
7.7 Selecting the Time Source.................................................................................................68
7.8 Loading the Date and Time ...............................................................................................69
8BLACK CONFIG MENU...................................................................................70
8.1 Selecting the Black Format ................................................................................................70
8.2 Configuring Timing Data ...................................................................................................71
8.2.1 Adjusting the Timing (Frame) .....................................................................................71
8.2.2 Adjusting the Timing (Line) ........................................................................................71
8.2.3 Adjusting the Timing (Dot) ......................................................................................... 72

8.3 Setting the Time Code ......................................................................................................72
8.3.1 Turning Time Code Insertion On and Off.......................................................................72
8.3.2 Setting Dropped Frames.............................................................................................73
8.4 Setting the Black Output ...................................................................................................73
8.4.1 Turning the Black Output On and Off............................................................................ 73
8.4.2 Turning BMCA Linkage On and Off (SER03) ..................................................................74
8.5 Settings Shared by Black Outputs.......................................................................................74
9AUDIO CONFIG MENU...................................................................................75
9.1 Setting the AES/EBU Output..............................................................................................75
9.1.1 Selecting the Frequency .............................................................................................75
9.1.2 Setting the Level .......................................................................................................75
9.1.3 Setting Clicks ............................................................................................................ 76
9.1.4 Settings Shared by Channels.......................................................................................76
9.1.5 Selecting the Resolution .............................................................................................76
9.1.6 Selecting the Pre-emphasis Mode ................................................................................ 77
9.1.7 Turning Time Code Insertion On and Off.......................................................................77
9.1.8 Adjusting the Timing.................................................................................................. 77
9.1.9 Turning Lip Sync Interlock On and Off (SER02) .............................................................78
9.2 Setting the Silence Output.................................................................................................78
9.2.1 Settings Shared with the AES/EBU Output....................................................................78
9.2.2 Selecting the Resolution .............................................................................................79
9.2.3 Adjusting the Timing.................................................................................................. 79
9.3Setting the Word-clock Output...........................................................................................80
9.3.1 Adjusting the Timing.................................................................................................. 80
10 LTC CONFIG MENU .......................................................................................81
10.1 Turning the LTC Output On and Off..................................................................................... 81
10.2 Selecting the LTC Format ..................................................................................................81
10.3 Adjusting the Timing (Frame) ............................................................................................ 82
10.4 Adjusting the Timing (Bit) .................................................................................................82
10.5 Adjusting the Offset.......................................................................................................... 82
10.6 Setting Dropped Frames....................................................................................................83
10.7 Settings Shared by LTC Outputs .........................................................................................83
11 CW/1PPS CONFIG MENU ...............................................................................84
11.1 Switching the Output Signal...............................................................................................84
12 SDI CONFIG MENU (SER02) ..........................................................................85
12.1 Selecting the Frequency Group ..........................................................................................85
12.2 Setting the SDI Format .....................................................................................................86
12.2.1 Selecting the System .................................................................................................86
12.2.2 Selecting the Color System .........................................................................................87
12.2.3 Selecting the Frame Frequency ...................................................................................87
12.3 Configuring Timing Data ...................................................................................................88

12.3.1 Selecting the Timing Reference ...................................................................................88
12.3.2 Adjusting the Timing (Line) ........................................................................................88
12.3.3 Adjusting the Timing (Dot) .........................................................................................89
12.4 Selecting the Pattern ........................................................................................................89
12.5 Turning YCbCr/GBR On and Off .......................................................................................... 91
12.6 Turning Safety Area Markers On and Off .............................................................................92
12.7 Configuring the Pattern Scroll Feature................................................................................. 93
12.7.1 Turning Scrolling On and Off .......................................................................................93
12.7.2 Setting the Scroll Speed (Vertical) ............................................................................... 93
12.7.3 Setting the Scroll Speed (Horizontal)............................................................................ 94
12.8 Setting the Pattern Change................................................................................................94
12.8.1 Turning Pattern Change On and Off .............................................................................94
12.8.2 Setting the Change Interval ........................................................................................ 95
12.9 Setting ID Characters .......................................................................................................95
12.9.1 Turning ID Characters On and Off................................................................................ 96
12.9.2 Recalling ID Characters ..............................................................................................96
12.9.3 Creating ID Characters...............................................................................................96
12.9.4 Setting the Position of ID Characters (Vertical).............................................................. 97
12.9.5 Setting the Position of ID Characters (Horizontal) .......................................................... 97
12.9.6 Selecting the Size of ID Characters .............................................................................. 98
12.9.7 Selecting the Level of ID Characters.............................................................................98
12.9.8 Turning ID Character Blinking On and Off .....................................................................98
12.9.9 Setting the ID Character On-Time................................................................................99
12.9.10 Setting the ID Character Off-Time................................................................................ 99
12.9.11 Turning ID Character Scrolling On and Off ....................................................................99
12.9.12 Setting ID Character Scroll Speed.............................................................................. 100
12.9.13 Saving ID Characters ............................................................................................... 100
12.9.14 Copying ID Characters from a USB Memory Device to the Instrument............................ 101
12.9.15 Copying ID Characters from the Instrument to a USB Memory Device............................ 102
12.9.16 Clearing ID Characters ............................................................................................. 102
12.10 Setting the Moving Box ................................................................................................... 103
12.10.1 Turning the Moving Box On and Off ........................................................................... 103
12.10.2 Selecting the Moving Box Color ................................................................................. 104
12.10.3 Selecting the Moving Box Speed (Vertical) .................................................................. 104
12.10.4 Selecting the Moving Box Speed (Horizontal) .............................................................. 104
12.10.5 Selecting the Moving Box Height ............................................................................... 105
12.10.6 Selecting the Moving Box Width ................................................................................ 105
12.11 Setting a Circle .............................................................................................................. 106
12.11.1 Turning the Circle On and Off.................................................................................... 106
12.11.2 Selecting the Circle Level.......................................................................................... 107
12.11.3 Selecting the Circle Size ........................................................................................... 107
12.11.4 Turning Circle Blinking On and Off ............................................................................. 107
12.11.5 Setting the Circle Blinking On-Time............................................................................ 108
12.11.6 Setting the Circle Blinking Off-Time............................................................................ 108
12.12 Setting the Time Code .................................................................................................... 109
12.12.1 Turning the Time Code On and Off............................................................................. 109
12.12.2 Setting the Time Code Position (Vertical).................................................................... 110

12.12.3 Setting the Time Code Position (Horizontal)................................................................ 110
12.12.4 Selecting the Time Code Size .................................................................................... 110
12.12.5 Selecting the Time Code Level .................................................................................. 111
12.13 Turning Lip Sync On and Off ............................................................................................ 111
12.14 Configuring Embedded Audio........................................................................................... 113
12.14.1 Turning the Audio On and Off.................................................................................... 114
12.14.2 Selecting the Resolution ........................................................................................... 114
12.14.3 Selecting the Pre-emphasis Mode .............................................................................. 114
12.14.4 Selecting the Frequency ........................................................................................... 115
12.14.5 Setting the Level ..................................................................................................... 115
12.14.6 Setting Clicks .......................................................................................................... 115
12.14.7 Settings Shared by Channels..................................................................................... 116
12.14.8 Settings Shared by Groups ....................................................................................... 116
12.15 Setting Ancillary Data ..................................................................................................... 117
12.15.1 Turning the LTC Signals On and Off............................................................................ 117
12.15.2 Turning the VITC Signals On and Off.......................................................................... 117
12.15.3 Setting Dropped Frames........................................................................................... 118
12.16 Setting the SDI Output ................................................................................................... 118
12.16.1 Turning the SDI Output On and Off............................................................................ 118
12.16.2 Turning BMCA Linkage On and Off (SER03) ................................................................ 119
12.17 Settings Shared by SDI Outputs....................................................................................... 119
13 PTP CONFIG MENU (SER03) ........................................................................120
13.1 PTP Leader and PTP Follower........................................................................................... 120
13.2 Setting the PTP Leader ................................................................................................... 120
13.2.1 Selecting the Mode .................................................................................................. 120
13.2.2 Configuring BMCA.................................................................................................... 121
13.2.3 Recovering Priority 1................................................................................................ 121
13.2.4 Selecting the Profile ................................................................................................. 121
13.2.5 Profile Default Settings............................................................................................. 122
13.2.6 Setting the Domain.................................................................................................. 122
13.2.7 Selecting the Communication Mode ........................................................................... 122
13.2.8 Setting the Announce Message Transmission Interval................................................... 123
13.2.9 Setting the Sync Message Transmission Interval.......................................................... 123
13.2.10 Setting the Announce Timeout .................................................................................. 124
13.2.11 Setting Priority 1 ..................................................................................................... 124
13.2.12 Setting Priority 2 ..................................................................................................... 124
13.2.13 Selecting the Step ................................................................................................... 125
13.2.14 Selecting the Default Frame...................................................................................... 125
13.2.15 Setting the Dropped Frame Flag................................................................................ 125
13.2.16 Setting the Color Frame ID ....................................................................................... 126
13.2.17 Selecting the Propagation Time Measurement Method.................................................. 126
13.3 Setting the PTP Follower ................................................................................................. 127
13.3.1 Selecting the Mode .................................................................................................. 127
13.3.2 Selecting the Profile ................................................................................................. 127
13.3.3 Profile Default Settings............................................................................................. 127
13.3.4 Setting the Domain.................................................................................................. 128

13.3.5 Setting the Communication Mode .............................................................................. 128
13.3.6 Selecting the Desired Announce Message Transmission Interval .................................... 129
13.3.7 Selecting the Announce Message Reception Interval .................................................... 129
13.3.8 Selecting the Desired Sync Message Transmission Interval ........................................... 130
13.3.9 Selecting the Sync Message Reception Interval ........................................................... 130
13.3.10 Selecting the Delay Message Transmission Interval...................................................... 131
13.3.11 Selecting the Desired Delay Message Transmission Interval .......................................... 131
13.3.12 Selecting the Delay Message Reception Interval .......................................................... 132
13.3.13 Setting the Announce Timeout .................................................................................. 132
13.3.14 Selecting the Propagation Time Measurement Method.................................................. 133
13.3.15 Setting the IP Address.............................................................................................. 133
13.3.16 Setting the Asymmetric Delay ................................................................................... 133
14 SYSTEM CONFIG MENU............................................................................... 134
14.1 Setting the Backlight....................................................................................................... 134
14.2 Configuring Presets ........................................................................................................ 134
14.2.1 Recalling Presets ..................................................................................................... 135
14.2.2 Storing Presets........................................................................................................ 135
14.2.3 Adding a Comment.................................................................................................. 136
14.2.4 Power-on Settings ................................................................................................... 136
14.2.5 Copying Presets from a USB Memory Device to the Instrument..................................... 137
14.2.6 Copying Presets from the Instrument to a USB Memory Device..................................... 138
14.2.7 Clearing Presets ...................................................................................................... 139
14.3 Setting the Network........................................................................................................ 139
14.3.1 Setting the Network................................................................................................. 139
14.3.2 Setting the IP Address.............................................................................................. 140
14.3.3 Setting the Subnet Mask........................................................................................... 140
14.3.4 Setting the Default Gateway ..................................................................................... 140
14.3.5 Configuring HTTP .................................................................................................... 141
14.3.6 Configuring the Web Browser.................................................................................... 141
14.3.7 Configuring NTP ...................................................................................................... 141
14.3.8 Setting the NTP Server............................................................................................. 142
14.4 Setting the Time ............................................................................................................ 143
14.4.1 Setting the Date and Time........................................................................................ 143
14.4.2 Selecting the Time Zone........................................................................................... 143
14.4.3 Turning Jam Sync On and Off.................................................................................... 144
14.4.4 Setting the Jam Sync Time ....................................................................................... 144
14.4.5 Turning the Daylight Saving Time On and Off (SER01) ................................................. 144
14.4.6 Setting the Daylight Saving Time Start Date (SER01)................................................... 145
14.4.7 Setting the Daylight Saving Time Offset (SER01)......................................................... 145
14.4.8 Setting the Daylight Saving Time End Date (SER01) .................................................... 145
14.4.9 Setting the Leap Second (SER01) .............................................................................. 146
14.4.10 Setting L-SYNC........................................................................................................ 146
14.5 Setting the GNSS (SER01)............................................................................................... 147
14.5.1 Setting the Power Supply ......................................................................................... 147
14.5.2 Setting the Cable Delay ............................................................................................ 147
14.6 Configuring the PTP Settings (SER03)............................................................................... 148

14.6.1 Setting the IP Address.............................................................................................. 148
14.6.2 Setting the Subnet Mask........................................................................................... 148
14.6.3 Setting the Gateway ................................................................................................ 149
14.6.4 Configuring SFP....................................................................................................... 149
14.6.5 Setting Port Mirroring............................................................................................... 149
14.7 Setting the Alarm ........................................................................................................... 150
14.7.1 Selecting the Polarity ............................................................................................... 150
14.7.2 Turning the Alarm Output On and Off......................................................................... 151
14.8 Configuring the Log ........................................................................................................ 152
14.8.1 Viewing the Log ...................................................................................................... 152
14.8.2 Copying the Log from the Instrument to a USB Memory Device .................................... 152
14.8.3 Clearing the Log ...................................................................................................... 153
14.9 Initialization................................................................................................................... 153
14.9.1 Initializing the Settings............................................................................................. 154
14.9.2 Factory Default Initialization...................................................................................... 154
14.9.3 Selecting the Initial Value for the Format.................................................................... 154
14.10 Viewing and Adding Software Options............................................................................... 155
14.10.1 Viewing Software Options......................................................................................... 155
14.10.2 Adding Software Options .......................................................................................... 155
14.11 Configuring USB............................................................................................................. 156
14.12 Turning the Fans On and Off ............................................................................................ 156
14.13 Copying the System Settings ........................................................................................... 157
14.13.1 Copying System Settings from a USB Memory Device to the Instrument ........................ 157
14.13.2 Copying System Settings from the Instrument to a USB Memory Device ........................ 157
15 STATUS MENU ...........................................................................................158
15.1 ALARM Menu ................................................................................................................. 158
15.2 INFORMATION Menu....................................................................................................... 159
15.3 CONFIG Menu ................................................................................................................ 161
15.3.1 REFERENCE Menu.................................................................................................... 161
15.3.2 BLACK Menu ........................................................................................................... 162
15.3.3 GNSS Menu (SER01)................................................................................................ 162
15.3.4 SDI Menu (SER02)................................................................................................... 163
15.3.5 PTP Menu (SER03) .................................................................................................. 163
15.3.6 SYSTEM Menu......................................................................................................... 164
15.4 LOG Menu ..................................................................................................................... 165
15.4.1 Viewing the Log ...................................................................................................... 165
15.4.2 Clearing the Log ...................................................................................................... 165
16 Web Browser.............................................................................................166
16.1 Operating Environment ................................................................................................... 166
16.2 How to Use.................................................................................................................... 166
16.3 Procedure...................................................................................................................... 168
16.4 Screen Description ......................................................................................................... 170
16.4.1 STATUS Screen ....................................................................................................... 170
16.4.2 REFERENCE Screen.................................................................................................. 173

16.4.3 BLACK Screen ......................................................................................................... 174
16.4.4 AUDIO Screen......................................................................................................... 175
16.4.5 LTC & CW/1PPS Screen ............................................................................................ 176
16.4.6 SDI Screen (SER02)................................................................................................. 177
16.4.7 PTP Screen (SER03) ................................................................................................ 182
16.4.8 SYSTEM Screen ....................................................................................................... 185
17 MAINTENANCE ..........................................................................................188
17.1 Calibration and Repair..................................................................................................... 188
17.2 Replacement of Parts...................................................................................................... 188
17.2.1 Power Supply Unit Replacement ................................................................................ 189
17.2.2 Front Fan Unit Replacement...................................................................................... 191
17.2.3 Rear Fan Unit Replacement....................................................................................... 194
18 APPENDIX .................................................................................................196
18.1 List of Settings............................................................................................................... 196
18.1.1 REFERENCE CONFIG Menu ....................................................................................... 196
18.1.2 BLACK CONFIG Menu............................................................................................... 196
18.1.3 AUDIO CONFIG Menu............................................................................................... 197
18.1.4 LTC CONFIG Menu ................................................................................................... 197
18.1.5 CW/1PPS CONFIG Menu ........................................................................................... 197
18.1.6 SDI CONFIG Menu (SER02) ...................................................................................... 198
18.1.7 PTP CONFIG Menu (SER03) ...................................................................................... 199
18.1.8 SYSTEM CONFIG Menu............................................................................................. 201
18.2 Release Notes................................................................................................................ 203

I
GENERAL SAFETY SUMMARY
Read This before Using the Instrument
This instrument should only be used by persons with sufficient knowledge of electronics who thoroughly
understand the contents of this manual.
This instrument is not designed or manufactured for households or ordinary consumers.
If unqualified personnel are to use the instrument, be sure the instrument is handled under the supervision
of qualified personnel (those who have electrical knowledge). This is to prevent the possibility of personal
injury or damage to the instrument.
Note about Reading This Manual
The contents of this manual contain specialized terminology and may be difficult to understand. If you have
any questions about the contents of this manual, please contact your local LEADER agent.
Symbols and Terms
The following symbols and terms are used in this instruction manual and on the instrument to indicate
important warnings and notes.
<Symbol>
This symbol appears in this instruction manual and on the instrument to indicate an area
where improper handling could result in personal injury, damage to the instrument, or
malfunction of the instrument or devices connected to it.
When you encounter this symbol on the instrument, be sure to refer to the information in this
instruction manual that corresponds to the area that the symbol marks.
<Term>
Ignoring the precautions that this term indicates could lead to death or serious injury.
<Term>
Ignoring the precautions that this term indicates could lead to personal injury or damage to
the instrument.

II
GENERAL SAFETY SUMMARY
Read the warnings and information below thoroughly to avoid death, personal injury, fire, electric shock,
and damage and deterioration of the instrument.
Warnings Concerning the Case and Panels
•Do not remove the instrument's case or panels for any reason.
•Do not insert foreign materials, such as metal and flammable objects, or allow liquid to enter the
instrument.
•Do not operate this instrument with wet hands.
•Do not install the instrument in a way that makes it difficult to operate the panel.
Installation Environment
•Use this instrument within a temperature range of 0 to 40°C at a relative humidity of 85% or
less; ensure that there is no risk of condensation forming.
•Do not use the instrument with its vents blocked or in a high temperature environment.
•If there is a possibility that the instrument has condensation within it, wait for approximately 30
minutes before turning on the power.
•Do not use this instrument in an environment where flammable gases, explosive gases, or steam
is emitted or stored.
If You Notice Something Wrong during Operation
•If you notice smoke, fire, strange odor, or any other anomaly while you are operating it, stop
operation immediately, and remove the power cord plug from the outlet.
Warnings Concerning the Power Source
•Do not use a power source with a voltage other than the rated line voltage for the instrument.
•Be sure to use a power frequency of 50 or 60 Hz.
•Use a power cord that meets the safety standards of the country that you are using it in.
•If the power cord is damaged, stop using it.
•Do not install the instrument in a way that makes it difficult to operate the power cord plug.
•When removing the power cord from the power outlet, be sure to hold the plug; do not pull on
the cord.
•When using the instrument, make sure that it is grounded using a grounded power cord.
Warnings Concerning the SFP Transceiver
•For safety reasons, use the Leader-designated SFP transceiver.

III
GENERAL SAFETY SUMMARY
Cautions Concerning the Input and Output Connectors
•Do not apply signals exceeding the specifications in this instruction manual to the input
connectors.
•Do not short circuit or apply an external voltage to the output connectors.
If You Will Not Use the Instrument for an Extended Period of Time
•If you will not use the instrument for an extended period of time, remove the power plug from
the outlet.
Cautions Concerning the Ethernet Port
•When you are connecting the instrument to the communication provider's equipment, connect to
the Ethernet port through a hub that is authorized for use in the country that you are using the
instrument in.

IV
GENERAL SAFETY SUMMARY
Routine Maintenance
When you clean the instrument, remove the power plug from the outlet.
Do not use thinner or benzene when you clean the instrument's case, panels, or knobs. Doing so could lead
to paint chipping or the corrosion of plastic components. To clean the case, panels, and knobs, use a soft
cloth with mild detergent, and wipe gently. While cleaning, make sure that foreign materials, such as water
and detergent, do not enter the instrument. If liquid or a metal object enters into the instrument, fire or
electric shock may result.
About the European WEEE Directive
This instrument and its accessories are subject to the European WEEE Directive.
Follow the applicable regulations of your country or region when discarding this instrument or its
accessories. Follow the EU Battery Directive when discarding the batteries that you removed from this
instrument.
(WEEE stands for Waste Electrical and Electronic Equipment.)
Follow the warnings and precautions that have been listed in this section to use the instrument
correctly and safely. Precautions are also contained in various other sections of this instruction
manual. To use the instrument correctly, be sure to follow those precautions as well.
If you have any questions or comments about this instruction manual, please contact your local
LEADER agent.

1 INTRODUCTION
1
1INTRODUCTION
Thank you for using the LEADER instrument. To use this instrument safely, read this instruction
manual thoroughly, and make sure that you know how to use the instrument properly.
If some point about the operation of this instrument is still unclear after you have read this
instruction manual, refer to the contact information on the back cover of the manual to contact
LEADER, or contact your local LEADER agent.
1.1 User Registration
Register as a user to access the latest product Information.
To register, go to the user registration page of the Leader website.
https://www.leader.co.jp/en/member/registry/
1.2 Scope of Warranty
This LEADER instrument has been manufactured under the strictest quality control guidelines. If
a failure occurs when the instrument is used in normal conditions, we will repair the instrument
free of charge for a period of one year from the date of purchase. The proof of purchase
(delivery slip, receipt bill, etc.) may be used as a warranty. Keep it in a safe place.
LEADER shall not be obligated to furnish the following free services during the warranty period.
1. Repair of malfunction or damages resulting from fire, natural calamity, or improper voltage
applied by the user.
2. Repair of a product that has been improperly repaired, adjusted, or modified by personnel
other than a factory-trained LEADER representative.
3. Repair of malfunctions or damages resulting from improper use.
4. Repair of malfunctions caused by devices other than this instrument.
5. Repair of malfunctions or damages without the presentation of a proof of purchase or
receipt bill for the instrument.
This Warranty is valid only in Japan.
1.3 Trademark Acknowledgments
The company and product names in this document are trademarks or registered trademarks of
their respective holders.

1 INTRODUCTION
2
1.4 Operating Precautions
1.4.1 Power Supply Voltage
Confirm the voltage of the power source before you connect the power cord to it.
The power requirements of this instrument are indicated on its rear panel.
Only use a power source that supplies a voltage within the operating voltage range and has a
frequency of 50/60 Hz.
1.4.2 Maximum Allowable Input Voltage
The maximum signal voltage that can be applied to the input connectors is indicated below.
Do not apply excessive voltage to the connectors. Doing so may damage the device or lead to
injury.
Table 1-1 | Maximum allowable input voltage
Input Connector
Maximum Allowable Voltage
GENLOCK/CW IN
GENLOCK
±5 V (DC + peak AC)
CW
1 Vrms (50 Ω termination)
LTC/REMOTE
LTC
4Vp-p
REMOTE
5V
L-SYNC
3.3V
GNSS IN (SER01)
3.3Vp-p
1.4.3 Mechanical Shock
This instrument contains sensitive components, so it may be damaged if it is dropped or
otherwise exposed to a strong shock.
1.4.4 Electrostatic Damage
Electronic components can be damaged by static discharge. Static electricity can build up in the
core wire of a coaxial cable. Before connecting a coaxial cable to an I/O connector of the
instrument, short the core wire of the cable with the external conductor.
1.4.5 Warming Up
To ensure more accurate measurements, turn ON the instrument approximately 30 minutes
before you intend to use it to allow its internal temperature to stabilize.

2 PRODUCT CONFIGURATION
3
2PRODUCT CONFIGURATION
2.1 Main Unit
The configuration of the LT4670 instrument is as shown below.
Table 2-1 | Instrument
Model Number
Model Name
Functions
Port
Number
of Ports
LT4670
SYNC GENERATOR
Genlock/CW Input
BNC
2
Analog Black Output
BNC
6
CW/1PPS Output
BNC
1
Word-Clock Output
DIN
1
Silence Output
DIN
1
AES/EBU Output
DIN
1
Ethernet
RJ-45
1
LTC/Remote
D-Sub 26pin
1
Inter-instrument Synchronization
(L-SYNC)
D-Sub 15pin
1
Power Requirements
Power Supply
1
2.2 Hardware Options
The following hardware options can be added to the LT4670.
Hardware options will be added by LEADER or the designated service personnel. Contact your
local LEADER agent.
Table 2-2 | Hardware options
Model Number
Model Name
Functions
Port Added
Number
of Ports
LT4670-SER01
GNSS
GPS / GLONASS / GALILEO /
BDS / QZSS Synchronization
BNC
1
LT4670-SER02
SDI
3G-SDI / HD-SDI / SD-SDI Output
BNC
2
LT4670-SER03
PTP
PTP
SFP/SFP+
2
LT4670-SER11
POWER UNIT
Redundant Power Supply
Power Supply
1

2 PRODUCT CONFIGURATION
4
2.3 Software Options
The following software options can be added to the LT4670.
To add a software option, provide your local LEADER agent with the instrument’s MAC address
and serial number. We will issue a license key.
When you receive the license key, add it using "SYSTEM CONFIG > LICENSE INFO. > LICENSE
KEY INPUT". Each instrument requires a unique license key. You cannot use the same key for
multiple instruments.
Table 2-3 | Software options
Model Number
Model Name
Functions
LT4670-SER21
4K 3G-Quad Link
4K 3G-Quad Link Output
(This requires two LT4670-SER02 units.)
MAC Address
You can check the MAC address in "STATUS > CONFIG > SYSTEM > MAC ADDRESS".
Serial Number
You can check the serial number on the rear panel or in "STATUS > CONFIG > SYSTEM >
MAIN". The upper 7-digit number represents the serial number.
[ M A C A D D R E S S ]
|}
0 0 : 0 0 : 0 0 : 0 0 : 0 0 : 0 0
[ M A I N : 0 0 / 0 0 0 0 0 0 0 ]
|}
C 5 : 0 0 0 0 0 0 0 0 C 1 0 : 0 0 0 0 0 0 0 0

3 SPECIFICATIONS
5
3SPECIFICATIONS
3.1 General
The LT4670 is a 1U full-rack size sync signal generator that outputs analog video sync signals
and audio word-clock signals. The genlock function allows operation synchronized with input
signals.
The genlock function has a stay-in-sync function that maintains the phase when an error occurs
in the input analog video sync signal. Adding the power option provides redundant operation.
The power supply unit and fan can be replaced without turning off the power of the LT4670
main unit. These features make it possible to configure a highly reliable system.
The LT4670 has six independent standard outputs of the analog sync signal output, digital audio
output, word-clock output, and LTC I/O. Also, options are available for GNSS and PTP
synchronization, arbitrary pattern output using 3G-SDI (4K Quad), HD-SDI, and SD-SDI, etc.
These options are designed to enable the management of the optimal synchronization system
for your application.
3.2 Features
3.2.1 LT4670
Genlock Function
Various output signals can be synchronized by applying NTSC/PAL black burst signals, which are
analog video sync signals, and HDTV tri-level sync signals.
NTSC/PAL black burst signal with field reference pulse and NTSC black burst signal with 10 field
IDs are also supported.
The 10 MHz CW lock is also supported as a standard feature.
Stay-in-Sync and Slow Lock Functions
A stay-in-sync function is available in case errors occur at the genlock input. In addition, a slow
lock function is available to reduce the shock that occurs when genlock is performed again
based on stay-in-sync. This makes it possible to construct an extremely reliable synchronization
system.
Analog Video Sync Signal Output
Six analog video sync signals can be output. The phase of each output can be adjusted
independently.
NTSC/PAL black burst signal with field reference pulse and NTSC black burst signal with 10 field
IDs are also supported.
Word-Clock Signal Output
The LT4670 can output a 48 kHz word-clock signal synchronized with video signals.

3 SPECIFICATIONS
6
AES/EBU Signal Output
This option can output a 48 kHz AES/EBU signal synchronized with video signals. (AES/EBU
connector)
It is also equipped with a AES/EBU signal output compatible with DARS. (SILENCE connector)
CW/1PPS Output
The CW/1PPS output can output 10 MHz CW or 1PPS, whichever is selected.
Time Code I/O
The time code generator can run in free run mode based on internal time information. Based on
the NTP server, LTC, VITC, GNSS (SER01), or PTP (SER03) time information, it can embed the
LTC3 system output and analog video sync signal output in VITC, as well as the SDI (SER02)
output in ATC (LTC/VITC).
LTC I/O
The LTC has three independent outputs for an input. An offset time can be set for each output
with respect to the frame rate and reference time.
Remote Connector
The remote connector can be used to load presets and transmit two alarm outputs.
Inter-instrument Synchronization Control (L-SYNC)
In a redundant system, the time can be synchronized by connecting the main and backup
devices that are synchronized with the same analog video sync signal via L-SYNC.
Real Time Clock
The real time clock is backed up by a battery. There is no need to reset the clock even when the
power is turned off and then back on.
Ethernet
Control is exerted based on the SNMP (future support). When an error is detected, a TRAP is
issued. Also, this instrument can be controlled using the HTTPS (future support), HTTP, and
REST-API (future support).
When connected to an NTP server as an NTP client, the instrument can be used for internal
clock synchronization or as an NTP server.
Preset Memory Function
Up to 10 presets can be saved. Convenient registered presets can be recalled during operation.
The LT4670 can be started with the same settings every time.

3 SPECIFICATIONS
7
External Memory Support
The log can be saved and preset data can be written and saved from the panel using USB
memory devices.
Logging Function
The operation status can be logged to internal memory or external memory.
Last Memory Function
When the power is turned on, it starts up with the settings when the power was turned off last
time.
3.2.2 LT4670-SER01 (GNSS)
GNSS Sync
A GNSS antenna can be connected to generate and output signals by locking to the frequency
and clock obtained from the GPS, GLONASS, GALILEO, BDS, and QZSS.
It also features a stay in sync function, which retains the phase and frequency of the output
signal when GNSS signals are lost.
3.2.3 LT4670-SER02 (SDI)
Triple-rate SDI Ready
The SDI signal output supports 3G-SDI (level A and level B), HD-SDI, and SD-SDI. There are
two independent SDI signal output connectors, and different patterns and phases can be set for
each.
Also, two SER02 units can be mounted, and up to four independent SDI signals can be output.
Moreover, adding a 4K option (SER21) supports the 4K 3G-Quad Link.
User Pattern Generation (future support)
In addition to internal patterns such as the color bar, SD and HD (2K) user patterns can be
output.
ID Character Overlay
ID characters can be overlaid at any position on the display. In addition, ID characters can be
scrolled horizontally or displayed in a blinking state for checking whether the display has frozen.
Logo Mark Overlay (future support)
24-bit full-color bitmap data can be overlaid as a logo mark at any position on the display at a
640 (dots) × 480 (lines) VGA size.
Safety Area Markers
90% and 80% safety area markers can be overlaid on the display. For 3G-SDI and HD-SDI, a
4:3 aspect marker can be overlaid.
This manual suits for next models
5
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