Meinberg IMS-MRI User manual

SETUP GUIDE
IMS-MRI
Hot-Plug Module
3rd May 2021
Meinberg Funkuhren GmbH & Co. KG

Table of Contents
1 Imprint 1
2 Introduction 2
3 Important Safety Hints 3
3.1 AdditionalSafetyHints ........................................... 4
3.2 PreventionofESDDamage......................................... 5
3.3 SupplyVoltage ................................................ 6
3.4 Cabling..................................................... 6
4 Front Connectors IMS-MRI 7
4.1 IMS-MRI-StatusLEDs .......................................... 8
4.2 TimeCodeAM(modulated)Input ..................................... 9
4.3 Time Code DCLS (unmodulated) Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.4 10MHzFrequencyInput .......................................... 9
4.5 PulsePerSecondInput ........................................... 10
5 Before you start 11
5.1 ScopeofDelivery............................................... 11
5.2 DisposalofPackagingMaterials...................................... 11
6 System Installation 12
6.1 Important Hints for hot-pluggable IMS Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2 Installation of hot-pluggable IMS modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7 Configuration and Status Monitoring of the Input Signals 14
7.1 ConfigurationofInputSignals ....................................... 14
7.2 Status Monitoring of the Input Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 RoHS and WEEE 16
Date: 3rd May 2021 IMS-MRI

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
Internet: https://www.meinbergglobal.com
Mail: [email protected]
Date: 03.05.2021
IMS-MRI Date: 3rd May 2021 1

2 Introduction
This Setup Guide is a systematically structured guideline which supports you during the set-up of your Mein-
berg product.
The IMS-MRI (MRI=Multi Reference Input) provides four signal inputs: 1x Time Code AM, 1x Time Code
DCLS, 1x 10 MHz as well as 1x PPS. These input signals are made available to the IMS system as additional
reference signals. The signals can be monitored and selected in the "Clock" menu of the assigned clock module
after successful initialization.
Features.
As already mentioned above, an MRI module is assigned to a clock module and provides it with additional
reference signals. If additional reference signals should also be available for the second clock module in re-
dundant operation, it is necessary to add another MRI module for this purpose.
Example:
1x GPS Clock on CLK1 requires 1x MRI on MRI1
1x GPS Clock on CLK1 and 1x GNS Clock on CLK2 requires 1x MRI on MRI1 and 1x MRI on MRI2
The LTOS manual provides a complete description of all configurations and status monitoring options of your
Meinberg product.
Download LTOS7 Firmware manual:
http://www.mbg.link/doce-fw-ltos
Compatibility
The IMS-MRI is an IMS module that is compatible with the following systems of the IMS family and can
be used in the slots shown in the table down below.
M500
M1000
M1000 S
M2000 S
M3000
M3000 S
M4000
MRI
ESI
I/O
Compatibility - IMS REL1000
IMS-Systems
Compatible
Applicable
IMS-Slot
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3 Important Safety Hints
3 Important Safety Hints
Please make sure that IMS modules that can be exchanged during operation are always handled with utmost
care.
Before any maintenance work on the system:
•Backup of stored configurations is recommended (e.g. via USB stick or Web UI)
•Please note the chapter "Prevention of ESD damage".
•Please note the chapter "Supply voltage".
IMS-MRI Date: 3rd May 2021 3

3.1 Additional Safety Hints
This manual contains important information for the installation and operation of this device as well as for your
safety. Make sure to read carefully before installing and commissioning the device.
Certain operating conditions may require the observance of additional safety regulations not covered by this
manual. Nonobservance of this manual will lead to a significant abatement of the security provided by this
device. Security of the facility where this product is integrated lies in the responsibility of the installer.
The device must be used only for purpose named in this manual, any other use especially opteration above the
limits specified in this document is considered as improper use.
Keep all documents provided with the device for later reference.
This manual is exclusively for qualified electricians or by a qualified electrician trained personnel who are
familiar with the applicable national standards and specifications, in particular for the construction of high
voltage devices.
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3 Important Safety Hints
3.2 Prevention of ESD Damage
ATTENTION!
The designation ESD (Electrostatic Sensitive Devices) refers to measures which are used
to protect electrostatically endangered components from electrostatic discharge and thus
to prevent destruction. Systems and assemblies with electrostatically endangered components
usually have the following characteristics:
Indicator for assemblies with electrostatic endangered components
The following measures protect electrostatically endangered components from destruction:
Prepare removal and installation of assemblies
Unload yourself (for example, by touching a grounded object) before touching assemblies.
Ensure that you wear a grounding strap on the wrist when working with such assemblies, which
you attach to an unpainted, non-conductive metal part of the system.
Use only tools and devices that are free from static electricity.
Transporting Assemblies
Assemblies may only be touched at the edge. Do not touch any pins or conductors on assemblies.
Installing and Removing Assemblies
Do not touch persons who are not grounded while removing or installing components. This could
result in a loss of grounding protection from your electrostatic discharge.
Storing Assemblies
Always keep assemblies in ESD protective covers. These protective covers must be undamaged.
ESD protective covers, which are extremely wrinkled or even have holes, no longer protect against
electrostatic discharge.
ESD protective covers must not be low-resistance and metallically conductive if a lithium battery
is installed on the assembly.
IMS-MRI Date: 3rd May 2021 5

3.3 Supply Voltage
WARNING!
The IMS system in which the module is used operates at a dangerous voltage. The specific safety instruc-
tions can be found in the manual of the respective IMS System.
If the module is a hot-pluggable power supply unit, disconnect its power cable before removing it from the
IMS System.
Never open a power supply unit cause dangerous voltages can even exist after it has been disconnected from
the electrical supply. If a power supply is not working anymore, e.g. due to a defect, please send it back to
Meinberg for necessary repairs.
Non-observance of these safety instructions can cause serious personal injury and material damage. Installation,
initial start-up and operation of the IMS System may only be performed by qualified technical experts.
3.4 Cabling
WARNING!
Danger to life through electric shock! Never work with voltage applied! When working on the plugs and
terminals of connected cables, always disconnect both sides of the cables from the respective devices!
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4 Front Connectors IMS-MRI
4 Front Connectors IMS-MRI
1
2
3
4
5
IMS-MRI Date: 3rd May 2021 7

4.1 IMS-MRI - Status LEDs
Status display
LED St: Status of the MRI
LED In: Synchronization status
LED A: Status of the input signals (TC-AM/DCLS)
LED B: Status of the input signals (10 MHz/PPS)
St In A B
The status messages of the LED’s are as follows:
LED St:
Blue During initialization
Green During operation
LED In.
Shows the state after initialisation
Green MRI successfully initialized
LED A - Status TC-AM and TC-DCLS
1 sec red -> 1 sec yellow -> 1 sec green -> 1 sec off
Green light TC-AM and/or TC-DCLS signal is available
Yellow light TC-AM and/or TC-DCLS signal is not available
LED B - Status 10 MHz and PPS
1 sec Red -> 1 sec Yellow -> 1 sec Green -> 1 sec Off
Green light 10 MHz and/or PPS signal is available
Yellow light 10 MHz and/or PPS signal is not available
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4 Front Connectors IMS-MRI
4.2 Time Code AM (modulated) Input
Signal output: Unbalanced sine wave-signal
Signal level: 600 mVpp /8Vpp (MARK/SPACE)
std. 600 Ohm (50 Ohm / 5 kOhm)
Isolation Voltage: 3000 V DC
Connection type: BNC female, isolated
Cable: shielded coax line
TC AM In
4.3 Time Code DCLS (unmodulated) Input
Input signal: Time Code DCLS, pulse-width
modulated (e.g. IRIG-B00x)
Isolation voltage: 3750 Vrms
internal resistance: 220 Ohm
max. input current: 60 mA
Connection type: BNC female, isolated
Cable: shielded coax line
TC DCLS In
4.4 10 MHz Frequency Input
Signal input: 10MHz frequency
Signal level: Sine wave (1.5 Vpp -5Vpp ) or TTL
Connection type: BNC female
Cable: shielded coaxial line
Freq. In
IMS-MRI Date: 3rd May 2021 9

4.5 Pulse Per Second Input
Input signal PPS (pulse per second)
Signal level: TTL
Pulse lenght: ≥5µs, active high
Connection type: BNC, female
Cable: shielded coax line
PPS In
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5 Before you start
5 Before you start
5.1 Scope of Delivery
Unpack the IMS-MRI carefully and check the scope of delivery against the enclosed packing list to ensure that no
parts are missing. If any of the listed items are missing, please contact our sales department: [email protected]
Check the system for shipping damage. If the system is damaged or cannot be put into operation, contact
Meinberg immediately. Only the recipient (the person or company receiving the system) can assert a claim
against freight forwarder for shipping damage.
Meinberg recommends that you keep the original packaging materials for possible future transport.
5.2 Disposal of Packaging Materials
The packaging materials we use are fully recyclable:
Material Use for Disposal
————————————————————————————————————————
Cardboard Shipping packaging, Paper recycling
accessories packaging
Foil Shipping packaging, Household waste or recycling depot
accessories packaging
————————————————————————————————————————
IMS-MRI Date: 3rd May 2021 11

6 System Installation
6.1 Important Hints for hot-pluggable IMS Modules
The following points should be strictly observed when replacing IMS modules during operation. Not all IMS
modules are fully hot-pluggable. Of course, it is not possible to replace a power supply unit of a non-redundant
system without first having installed a second power source in operational mode.
The following applies to the individual IMS slots:
PWR: "hot swappable" If you operate your system with only one
power supply, a second power supply must
be installed before removing/replacing it
to keep your system functioning.
I/O, ESI and MRI Slots: "hot plugable".
CLK1, CLK2: "hot plugable" Afer the exchange or the installation of a
clock module a rescan of the reference clocks
(Rescan Refclocks) must be executed in the web
interface menu "System".
RSC/SPT: "hot plugable" The switching function or the distribution of
generated signals is interrupted while the RSC/SPT
is disconnected.
———————————————————————————————————————————–
CPU: "hot plugable"
The NTP service and access to the web interface are interrupted while the
CPU is disconnected. Also the management and monitoring functions are no
longer available.
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6 System Installation
6.2 Installation of hot-pluggable IMS modules.
If the system is supplied with an antenna and antenna cable, it is advisable to first mount the antenna in a
suitable location (see chapter Antenna Mounting) and lay the antenna cable.
Please use a Torx screwdriver (T8 x 60) for removal and installation of the module.
1. Follow the safety instructions at the beginning
of this manual!
2. Remove the two marked Torx screws from the
module holder plate or the cover plate of
the empty slot.
3. Note when removing!
Pull the module carefully out of the guide
rail. Note that the module is firmly anchored
in the connector block of the housing. You need
a certain amount of force to release the module
from this link. Once the connection to the
connector block of the system’s backplane is
loosened, the module can be easily pulled out.
4. Note during installation!
Please ensure that the module is correctly inserted into the
two guide rails of the system housing as otherwise damage to the module and the housing could be caused.
Make sure that the module is securely locked into the connector block before you fasten the two screws.
5. Now you can put the installed module into operation.
Attachment points of an 1U IMS system
IMS-MRI Date: 3rd May 2021 13

7 Configuration and Status Monitoring of the
Input Signals
This chapter explains how to put an IMS-MRI into operation via the web interface.
7.1 Configuration of Input Signals
Four fixed input signals (time code AM, time code DCLS, 10 MHz and PPS) can be supplied via the MRI
module to synchronize the system.
MRS prioritization
The provided input signals can be configured and monitored after the module is initialized.
MRS setting: selection and prioritization of the available input sources.
1. Open the "Clock" menu.
2. Open the submenu "Status & configuration".
3. Select the respective clock module of the corresponding MRI module
4. Click on the tab "MRS settings".
5. Configure the reference signals shown in the priority list.
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7 Configuration and Status Monitoring of the Input Signals
IRIG settings
Several time codes are available for selection for the IRIG reference signals of the MRI.
These are to be configured in the "Status & Configuration" submenu in the " IRIG Settings" tab.
Menü: Configuration of IRIG-Timecodes
7.2 Status Monitoring of the Input Signals
This chapter describes the status monitoring of the IMS-MRI via the web interface.
Important parameters of the previously configured reference signals are displayed in the MRI Status tab of
the "Status & Configuration" submenu in the priority list. Among other things, the status and the offset of the
respective reference signal to the specified time source can be seen here.
A detailed explanation of all parameters can be found in the LTOS manual.
IMS-MRI Date: 3rd May 2021 15

8 RoHS and WEEE
Compliance with EU Directive 2011/65/EU (RoHS)
We hereby declare that this product is conform to the
European Directive 2011/65/EU and its delegated di-
rective 2015/863/EU “Restrictions of Hazardous Sub-
stances in Electrical and Electronic Equipment”. We
ensure that electrical and electronic products sold in
the EU do not contain lead, cadmium, mercury, hex-
avalent chromium, polybrominated biphenyls (PBBs),
and polybrominated diphenyl ethers (PBDEs), Bis
(2-ethylhexyl)phthalat (DEHP), Benzylbutylphthalat
(BBP), Dibutylphthalat (DBP), Diisobutylphthalat
(DIBP), above the legal threshold.
WEEE status of the product
This product is handled as a B2B (Business to Busi-
ness) category product. In order to secure a WEEE
compliant waste disposal it has to be returned to the
manufacturer. Any transportation expenses for return-
ing this product (at its end of life) have to be incurred
by the end user, whereas Meinberg will bear the costs
for the waste disposal itself.
16 Date: 3rd May 2021 IMS-MRI