Meinberg FO Use and care manual

TECHNICAL REFERENCE
FO/FOS CONVERTER
Signal Distribution over long Distances
May 2, 2023
Meinberg Funkuhren GmbH & Co. KG

Table of Contents
1 Imprint 1
2 Copyright and Liability Exclusion 2
3 Presentation Conventions in this Manual 3
3.1 Conventions for the Presentation of Critical Safety Warnings . . . . . . . . . . . . . . . . . . . . 3
3.2 Secondary Symbols Used in Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.3 Conventions for the Presentation of Other Important Information . . . . . . . . . . . . . . . . . . 4
3.4 GenerallyApplicableSymbols ...................................... 4
4 Important Safety Information 5
4.1 AppropriateUsage ............................................. 5
4.2 ProductDocumentation........................................... 6
4.3 SafetywhenInstallingtheDevice .................................... 7
4.4 Connection of Protective Earth Conductor/Grounding . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.5 ElectricalSafety............................................... 9
4.5.1 Special Information for Devices with DC Power Supply . . . . . . . . . . . . . . . . . . . 11
4.6 Safety when Maintaining and Cleaning the Device . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Important Product Information 13
5.1 CEMarking ................................................. 13
5.2 UKCAMarking ............................................... 13
5.3 Ensuring the Optimum Operation of Your Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.4 Disposal ................................................... 14
6 Fiber Optic Converter Overview 15
6.1 LWLConverterCase ............................................ 15
6.2 CON/TTL/FO ................................................ 16
6.2.1 Technical Specifications CON/TTL/FO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.3 CON/FO/TTL ................................................ 17
6.3.1 Technical Specifications CON/FO/TTL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.4 CON/232/FO................................................. 18
6.4.1 Technical Specifications CON/232/FO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.5 CON/TCM/FOundCON/FO/TCM.................................... 19
6.5.1 Technical Specifications CON/TCM/FO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.6 CON/TTL/FOS ............................................... 20
6.6.1 Technical Specification CON/TTL/FOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.7 CON/FOS/TTL ............................................... 21
6.7.1 Technical Specification CON/FOS/TTL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7 RoHS Conformity 22
8 Declaration of Conformity for Operation in the European Union 23
9 Declaration of Conformity for Operation in the United Kingdom 25
0

1 Imprint
1 Imprint
Meinberg Funkuhren GmbH & Co. KG
Lange Wand 9, 31812 Bad Pyrmont, Germany
Phone: + 49 (0) 52 81 / 93 09 - 0
Fax: + 49 (0) 52 81 / 93 09 - 230
Website: https://www.meinbergglobal.com
Email: [email protected]
Date: April 17, 2023
FO/FOS CONVERTER Date: May 2, 2023 1

2 Copyright and Liability Exclusion
Except where otherwise stated, the contents of this document, including text and images of all types and transla-
tions thereof, are the intellectual property and copyright of Meinberg Funkuhren GmbH & Co. KG (“Meinberg”
in the following) and are subject to German copyright law. All reproduction, dissemination, modification, or ex-
ploitation is prohibited unless express consent to this effect is provided in writing by Meinberg. The provisions
of copyright law apply accordingly.
Any third-party content in this document has been included in accordance with the rights and with the consent
of its copyright owners.
A non-exclusive license is granted to redistribute this document (for example, on a website offering free-of-
charge access to an archive of product manuals), provided that the document is only distributed in its entirety,
that it is not modified in any way, that no fee is demanded for access to it, and that this notice is left in its
complete and unchanged form.
At the time of writing of this document, reasonable effort was made to carefully review links to third-party
websites to ensure that they were compliant with the laws of the Federal Republic of Germany and relevant
to the subject matter of the document. Meinberg accepts no liability for the content of websites not created or
maintained by Meinberg, and does not warrant that the content of such external websites is suitable or correct
for any given purpose.
While Meinberg makes every effort to ensure that this document is complete, suitable for purpose, and free
of material errors or omissions, and periodically reviews its library of manuals to reflect developments and
changing standards, Meinberg does not warrant that this specific document is up-to-date, comprehensive, or
free of errors. Updated manuals are provided at www.meinbergglobal.com.
You may also write to techsuppor[email protected] to request an updated version at any time or provide feedback
on errors or suggested improvements, which we are grateful to receive.
Meinberg reserves the right to make changes of any type to this document at any time as is necessary for
the purpose of improving its products and services and ensuring compliance with applicable standards, laws &
regulations.
2 Date: May 2, 2023 FO/FOS CONVERTER

3 Presentation Conventions in this Manual
3 Presentation Conventions in this Manual
3.1 Conventions for the Presentation of Critical Safety Warnings
Warnings are indicated with the following warning boxes, using the following signal words, colors, and symbols:
Caution!
This signal word indicates a hazard with a low risk level. Such a notice refers to a procedure or other
action that may result in minor injury if not observed or if improperly performed.
Warning!
This signal indicates a hazard with a medium risk level. Such a notice refers to a procedure or other
action that may result in serious injury or even death if not observed or if improperly performed.
Danger!
This signal word indicates a hazard with a high risk level. Such a notice refers to a procedure or
other action that will very likely result in serious injury or even death if not observed or if improperly
performed.
3.2 Secondary Symbols Used in Safety Warnings
Some warning boxes may feature a secondary symbol that emphasizes the defining nature of a hazard or risk.
The presence of an "electrical hazard" symbol is indicative of a risk of electric shock or
lightning strike.
The presence of a "fall hazard" symbol is indicative of a risk of falling when performing
work at height.
Das Symbol "laser hazard" symbol is indicative of a risk relating to laser radiation.
FO/FOS CONVERTER Date: May 2, 2023 3

3.3 Conventions for the Presentation of Other Important Information
Beyond the above safety-related warning boxes, the following warning and information boxes are also used
to indicate risks of product damage, data loss, and information security breaches, and also to provide general
information for the sake of clarity, convenience, and optimum operation:
Important!
Warnings of risks of product damage, data loss, and also information security risks are indicated with
this type of warning box.
Information:
Additional information that may be relevant for improving efficiency or avoiding confusion or misunder-
standings is provided in this form.
3.4 Generally Applicable Symbols
The following symbols and pictograms are also used in a broader context in this manual and on the product.
The presence of the "ESD" symbol is indicative of a risk of product damage caused by
electrostatic discharge.
Direct current (DC) (symbol definition IEC 60417-5031)
Alternating current (AC) (symbol definition IEC 60417-5032)
Ground connection (symbol definition IEC 60417-5017)
Protective earth connection (symbol definition IEC 60417-5019)
4 Date: May 2, 2023 FO/FOS CONVERTER

4 Important Safety Information
4 Important Safety Information
The safety information provided in this chapter as well as specific safety warnings provided at relevant
points in this manual must be observed during every installation, set-up, and operation procedure of
the device, as well as its removal from service.
Any safety warnings affixed to the device itself must also be observed.
Any failure to observe this safety information, these safety warnings, and other safety-critical operating
instructions in the product documentation, or any other improper usage of the device may result in
unpredictable behavior from the product, and may result in injury or death.
Depending on your specific device configuration and installed options, some safety information may not
be applicable to your device.
Meinberg accepts no responsibility for injury or death arising from a failure to observe the safety
information, warnings, and safety-critical instructions provided in the product documentation.
It is the responsibility of the operator to ensure that the product is safely and properly used.
Should you require additional assistance or advice on safety-related matters for your product, Mein-
berg’s Technical Support team will be happy to assist you at any time. Simply send a mail to techsup-
[email protected].
4.1 Appropriate Usage
The device must only be used appropriately in accordance with the specifications of the product
documentation! Appropriate usage is defined exclusively by this manual as well as any other relevant
documentation provided directly by Meinberg.
Appropriate usage includes in particular compliance with specified limits! The device’s operating
parameters must never exceed or fall below these limits!
FO/FOS CONVERTER Date: May 2, 2023 5

4.2 Product Documentation
The information in this manual is intended for readers with an appropriate degree of safety awareness.
The following are deemed to possess such an appropriate degree of safety awareness:
•skilled persons with a familiarity with relevant national safety standards and regulations,
•instructed persons having received suitable instruction from a skilled person on relevant national
safety standards and regulations
If there is any safety information in the product documentation that you do not understand, do not
continue with the set-up or operation of the device!
Read the product manual carefully and completely before you set the product up for use.
Safety standards and regulations change on a regular basis and Meinberg updates the corresponding
safety information and warnings to reflect these changes. It is therefore recommended to visit the
Meinberg website at https://www.meinbergglobal.com regularly to download up-to-date manuals.
Please keep all product documentation, including this manual, in a safe place in digital or printed
format to ensure that it is always easily accessible.
Meinberg’s Technical Support team is also always available at [email protected] if you require
additional assistance or advice on safety aspects of your system.
6 Date: May 2, 2023 FO/FOS CONVERTER

4 Important Safety Information
4.3 Safety when Installing the Device
This rack-mounted device has been designed and tested in accordance with the requirements of the
standard IEC 62368-1 (Audio/Video, Information and Communication Technology Equipment—Part 1:
Safety Requirements). Where the rack-mounted device is to be installed in a larger unit (such as an
electrical enclosure), additional requirements in the IEC 62368-1 standard may apply that must be
observed and complied with. General requirements regarding the safety of electrical equipment (such
as IEC, VDE, DIN, ANSI) and applicable national standards must be observed in particular.
The device has been developed for use in industrial or home environments and may only be used in
such environments. In environments at risk of high environmental conductivity ("high pollution degree"
according to IEC 60664-1), additional measures such as installation of the device in an air-conditioned
electrical cabinet may be necessary.
If the unit has been brought into the usage area from a cold environment, condensation may develop; in
this case, wait until the unit has adjusted to the temperature and is completely dry before setting it up.
When unpacking & setting up the equipment, and before operating it, be sure to read the information
on installing the hardware and the specifications of the device. These include in particular dimensions,
electrical characteristics, and necessary environmental conditions.
Fire safety standards must be upheld with the device in its installed state.
The device with the highest mass should be installed at the lowest position in the rack in order to
position the center of gravity of the rack as a whole as low as possible and minimize the risk of the
rack tipping over. Further devices should be installed from the bottom, working your way up.
The device must be protected against mechanical & physical stresses such as vibration or shock.
Never drill holes into the device to mount it! If you are experiencing difficulties with rack installation,
contact Meinberg’s Technical Support team for assistance!
Inspect the device housing before installation. The device housing must be free of any damage when it
is installed.
FO/FOS CONVERTER Date: May 2, 2023 7

4.4 Connection of Protective Earth Conductor/Grounding
In order to ensure that the device can be operated safely and to meet the requirements of IEC 62368-
1, the device must be correctly connected to the protective earth conductor via the protective earth
connection terminal.
If an external ground connection is provided on the housing, it must be connected to the grounding
busbar (earthing busbar) for safety reasons before connecting the power supply. Like this, any possible
leakage current on the housing is safely discharged to earth.
The screw, washer and toothed lock washer necessary for mounting the grounding cable are located at
the grounding point of the housing. A grounding cable is not included in the contents of delivery.
Note: Please use a grounding cable with cross-section ≥1.5 mm2, as well as a suitable grounding
clamp/lug. Always ensure that the connection is properly crimped!
8 Date: May 2, 2023 FO/FOS CONVERTER

4 Important Safety Information
4.5 Electrical Safety
This Meinberg product is operated at a hazardous voltage.
This system may only be set up and connected by a skilled person, or by an instructed person who has
received appropriate technical & safety training from a skilled person.
Custom cables may only be assembled by a qualified electrician.
Never work on cables carrying a live current!
Never use cables or connectors that are visibly damaged or known to be defective! Faulty, defective, or
improperly connected shielding, connectors, or cables present a risk of injury or death due to electric
shock and may also constitute a fire hazard!
Before operating the device, check that all cables are in good order. Ensure in particular that the cables
are undamaged (for example, kinks), that they are not wound too tightly around corners, and that no
objects are placed on the cables.
Cables must be laid in such a way that they do not present a tripping hazard.
The power supply should be connected using a short, low-inductance cable. Avoid the use of power
strips or extension cables if possible. If the use of such a device is unavoidable, ensure that it is
expressly rated for the rated currents of all connected devices.
Never connect or disconnect power, data, or signal cables during a thunderstorm! Doing so presents
a risk of injury or death, as cables and connectors may conduct very high voltages in the event of a
lightning strike!
The device cables must be connected or disconnected in the order specified in the user documentation
for the device. Connect all cables only while the device is de-energized before you connect the power
supply.
Always pull cable connectors out at both ends before performing work on connectors! Improperly
connecting or disconnecting this Meinberg system may result in electric shock, possibly resulting in
injury or death!
When pulling out a connector, never pull on the cable itself! Pulling on the cable may cause the plug
to become detached from the connector or cause damage to the connector itself. This presents a risk of
direct contact with live components.
FO/FOS CONVERTER Date: May 2, 2023 9

-
+
U = 100 - 200 V
N
U = 90 - 250 V
max
5-Pin MSTB Connector 3-Pin MSTB Connector
Fig.: Lock screws on an MSTB plug connector; in this case on a LANTIME M320
Ensure that all plug connections are secure. In particular, when using plug connectors with lock screws,
ensure that the lock screws are securely tightened. This is especially important for power supply
connectors where 3-pin or 5-pin MSTB connectors with lock screws are used (see illustration).
Before the device is connected to the power supply, the device housing must be grounded by connecting
a grounding conductor to the grounding terminal of the device.
When installing the device in an electrical enclosure, it must be ensured that adequate clearance is
provided, minimum creepage distances to adjacent conductors are maintained, and that there is no risk
of short circuits.
Protect the device from the ingress of objects or liquids!
If the device malfunctions or requires servicing (for example, due to damage to the housing, power
supply cable, or the ingress of liquids or objects), the power supply may be cut off. In this case, the
device must be isolated immediately and physically from all power supplies! Electrical isolation must
be performed and confirmed in accordance with the following procedure:
•Pull the power supply plug from the power supply.
•Loosen the locking screws of the MSTB power supply plug on the device and pull it out of the
device.
•Contact the person responsible for your electrical infrastructure.
•If your device is connected to one or more uninterruptible power supplies (UPS), the direct
power supply connection between the device and the UPS solution must be first be disconnected.
10 Date: May 2, 2023 FO/FOS CONVERTER

4 Important Safety Information
4.5.1 Special Information for Devices with DC Power Supply
In accordance with IEC 62368-1, it must be possible to disconnect the appliance from the supply voltage
from a point other than the appliance itself (e.g., from the primary circuit breaker).
The power supply plug may only be fitted or dismantled while the appliance is isolated from the power
supply (e.g., disconnected via the primary circuit breaker).
Power supply cables must have adequate fuse protection and have an adequate wire gauge size (1 mm2
— 2.5 mm2/ 17 AWG -– 13 AWG)
The power supply of the device must have a suitable on-demand disconnection mechanism (i.e., a switch).
This disconnection mechanism must be readily accessible in the vicinity of the appliance and marked
accordingly as a cut-off mechanism for the appliance.
FO/FOS CONVERTER Date: May 2, 2023 11

4.6 Safety when Maintaining and Cleaning the Device
Only use a soft, dry cloth to clean the device.
Never use liquids such as detergents or solvents to clean the device! The ingress of liquids into the
device housing may cause short circuits in the electronic circuitry, which in turn can cause a fire or
electric shock!
Neither the device nor its individual components may be opened. The device or its components may
only be repaired by the manufacturer or by authorized personnel. Improperly performed repairs can put
the user at significant risk!
In particular, never open a power supply unit or module, as hazardous voltages may be present within
the power supply device even after it is isolated from the upstream voltage. If a power supply unit or
module is no longer functional (for example due to a defect), it can be returned to Meinberg for repair.
Some components of the device may become very hot during operation. Do not touch these surfaces!
If maintenance work is to be performed on the device and the device housing is still hot, switch off the
device beforehand and allow it to cool.
12 Date: May 2, 2023 FO/FOS CONVERTER

5 Important Product Information
5 Important Product Information
5.1 CE Marking
This product bears the CE mark as is required to introduce the product into the EU
Single Market.
The use of this mark is a declaration that the product is compliant with all re-
quirements of the EU directives effective and applicable as at the time of manufacture of
the product. These directives are listed in the EU Declaration of Conformity, appended
to this manual as Chapter 8.
5.2 UKCA Marking
This product bears the British UKCA mark as is required to introduce the product into
the United Kingdom (excluding Northern Ireland, where the CE marking remains valid).
The use of this mark is a declaration that the product is in conformity with all
requirements of the UK statutory instruments applicable and effect as at the time
of manufacture of the product. These statutory instruments are listed in the UK
Declaration of Conformity, appended to this manual as Chapter 9.
5.3 Ensuring the Optimum Operation of Your Device
•Ensure that ventilation slots are not obscured or blocked by dust, otherwise heat may build up inside
the device. While the system is designed to shut down automatically in the event of temperature limits
being exceeded, the risk of malfunctions and product damage following overheating cannot be entirely
eliminated.
•The device is only deemed to be appropriately used and EMC limits (electromagnetic compatibility) are
only deemed to be complied with while the device housing is fully assembled in order to ensure that
requirements pertaining to cooling, fire safety, electrical shielding and (electro)magnetic shielding are
upheld.
FO/FOS CONVERTER Date: May 2, 2023 13

5.4 Disposal
Disposal of Packaging Materials
The packaging materials that we use are fully recyclable:
Material Use for Disposal
————————————————————————————————————————————-
Polystyrene Packaging frame/filling material Recycling Depot
(e.g., polystyrene peanuts)
PE-LD (Low-density polyethylene) Accessories packaging, bubble wrap Recycling Depot
Cardboard Shipping packaging, Paper Recycling
accessories packaging
For information on the proper disposal of packaging materials in your specific country, please inquire with your
local waste disposal company or authority.
Disposal of the Device
This product falls under the labeling obligations of the Waste Electrical and Electronic
Equipment Directive 2012/19/EU ("WEEE Directive") and thus bears this WEEE symbol.
The presence of this symbol indicates that this electronic product may only be disposed
of in accordance with the following provisions.
Important!
Do not dispose of the product or batteries via the household waste. Inquire with your local waste
disposal company or authority on how to best dispose of the product or battery if necessary.
This product is considered to be a "B2B" product for the purposes of the WEEE Directive and is also classified
as "IT and Telecommunications Equipment" in accordance with Annex I of the Directive.
It can be returned to Meinberg for disposal. In this case, the shipping costs are to be borne by the cus-
tomer, while Meinberg will cover the costs for disposal. If you wish for Meinberg to handle disposal for you,
please get in touch with us. Otherwise, please use the return and collection systems provided within your
country to ensure that your device is disposed of in a compliant fashion to protect the environment and conserve
valuable resources.
14 Date: May 2, 2023 FO/FOS CONVERTER

6 Fiber Optic Converter Overview
6 Fiber Optic Converter Overview
The following fiber optic converters have been designed for the distribution of electrical signals over optical
fibers. The multi mode converters are linked via an optical GI50/125 µm or GI62.5/125 µm multimode fiber using
a wave lenght of 850 nm. The single mode converters are linked via an optical E9/125 µm monomode fiber using
a wave lenght of 1310 nm.
The standard modules are suited for signals like PPS, PPM, IRIG-B DCLS or 10 MHz. The required supply
voltage (20 - 60 V DC) is provided by a power adapter (Vin: 100 - 240 V AC; Vout: 24 V DC) which is optionally
included in the scope of supply. All converter variants are equipped with a fixing clamp for 35 mm DIN mounting
rails. If necessary, each of the output signals can be inverted on request.
Transmission distances of up to 2000 meters can be realized with multimode converters. A transmission distance
of up to 10 kilometres can be achieved with singlemode converters.
6.1 LWL Converter Case
Chassis: Aluminium profile case
84 mm x 71 mm x 24 mm
(Width x Depth x Height)
Protection Rating: IP20
Temperature: 0 ... 50 ◦C
Storage Temperature: -25 ... 70 ◦C
Humidity: max. 85%
Power Supply
Input Parameter
——————————————————————————–
Nominal voltage range: UN= 48 V
Maximum voltage range: Umax =20-60V
Nominal current: IN= 0.22 A
Output Parameter
——————————————————————————–
Maximum power: Pmax = 10 W
Maximum heat: Etherm = 36.01 kJ/h (34.13 BTU/h)
-
+
UN = 48 V
Umax = 20 - 60 V
FO/FOS CONVERTER Date: May 2, 2023 15

6.2 CON/TTL/FO
The fiber optic module CON/TTL/FO converts an input
signal (TTL, RS-422 or FO) into one or more FO (fiber
optical) output signals.
CON/TTL/FO-4
V2
CON/TTL/FO
TTL to FO Converter
The following options are possible:
1.) CON/TTL/FO: TTL input via BNC connector to
one FO output
2.) CON/TTL/FO-x: TTL input (BNC female) to x (2,
3 or 4) FO outputs
3.) CON/422/FO: RS-422 input via 9pin DSub con-
nector to one FO output
4.) CON/422/FO-x: RS-422 input (DSub) to x (2, 3 or
4) FO outputs
5.) CON/FO/FO-x: FO input (ST) to x (2, 3 or 4) FO
outputs
6.2.1 Technical Specifications CON/TTL/FO
Input Signal: TTL signal via BNC female connector
input impedance 10 kΩ
Optical Outputs: up to four multimode FO outputs via ST connectors
active high (optional inverted)
for GI 50/125 µm or GI 62,5/125 µm gradient fiber
Launchable
output Power: typ. 15 µW per output (into GI 50/125 µm gradient fiber)
Wave Length: 850 nm
Signal Delay: Delay of the electrical slope, detected with
CON/TTL/FO and CON/FO/TTL:
- rising edge: 45 ns
- falling edge: 45 ns
(plus the delay caused by the optical fiber: approx. 4,9 ns/m)
Data Rate: max. 20 MHz
Signal jitter: <1 ns
16 Date: May 2, 2023 FO/FOS CONVERTER

6 Fiber Optic Converter Overview
6.3 CON/FO/TTL
The fiber optic module CON/FO/TTL converts a FO
(fiber optical) input signal into one or more electrical
output signals (TTL or RS-422).
CON/FO/TTL
CON/FO/TTL
FO to TTL Converter
The following options are possible:
CON/FO/TTL:
two TTL outputs via BNC connector
CON/FO/422:
one RS-422 output via 9pin DSub connector
CON/FO/TTL/422:
one TTL output (BNC female) and one RS-422 output
(DSub)
6.3.1 Technical Specifications CON/FO/TTL
optical
Input: 1 x multimode FO input via ST connector
(for GI 50/125 µm or GI 62,5/125 µm gradient fiber)
optical
input level: min. 3 µW
Wave length: 850 nm
electrical
Outputs: TTL output signal via female BNC connector
RS-422 output signal via female 9pin DSub connector
(Pin7: +OUT, Pin8: -OUT)
Signal delay: Delay of the electrical slope, detected with
CON/TTL/FO and CON/FO/TTL:
- rising edge: 45 ns
- falling edge: 45 ns
(plus the delay caused by the optical fiber: approx. 4,9 ns/m)
Data Rate: max. 20 MHz
Signal Jitter: <1 ns
FO/FOS CONVERTER Date: May 2, 2023 17