Meinberg IMS-M4000 User manual

MANUAL
IMS-M4000
Modular Sync. System and
NTP Server
21st August 2019
Meinberg Funkuhren GmbH & Co. KG

Front view (Frontansicht) IMS-M4000

Table of Contents
1 Imprint 1
2 Safety instructions for building-in equipment 2
2.1 Additional Safety Hints ........................................... 3
2.2 Supply Voltage ................................................ 3
2.3 Cabling ..................................................... 4
2.4 Safety Hints Antenna ............................................ 4
2.5 Replacing the Lithium Battery ....................................... 5
2.6 Grounding connection M4000 ........................................ 5
3 Quick Start 6
4 The Modular System LANTIME 7
5 Mounting the GPS Antenna 8
5.1 Antenna Cable: ................................................ 9
5.2 Antenna Short-Circuit ............................................ 9
5.3 Antenna Assembly with Surge Voltage Protection ............................ 10
6 40dB Multi GNSS L1 Timing Antenna with Integrated Lightning Protection 11
6.1 GNSS Antenna for Stationary Installation ................................ 11
6.2 GNSS Antenna for Mobile Applications ................................. 13
7 Booting the Single Board Computer 14
8 Configuration User Interface 15
9 The Menues in Detail 16
9.1 Root Menu ................................................... 16
10 The graphical user interfaces 18
11 The WEB Interface 19
12 Attachment: Technical Information 20
12.1 Technical Specifications LANTIME M4000 Housing .......................... 20
12.2 IMS M4000 Chassis ............................................. 22
12.3 Retrofitting the Active Cooling Module - ACM .............................. 23
12.4 Available Modules and Connectors .................................... 24
12.5 TERMINAL (Console) ............................................ 25
12.6 USB Connector ................................................ 25
12.7 Replacement or Installation of a Hot-pluggable IMS Module ..................... 26
12.7.1 Important Hints for hot-pluggable IMS Modules ........................ 27
12.8 IMS Module Options ............................................. 28
12.8.1 Power Supply 100-240 V AC / 100-200 V DC .......................... 28
12.8.2 Power Supply 20-60 V DC ..................................... 29
12.8.3 Power Supply 10-36 V DC ..................................... 29
12.8.4 GPS Clock .............................................. 30
12.8.5 GNSS Clock ............................................. 32
12.8.6 GNS-UC Clock ........................................... 34
12.8.7 PZF Clock .............................................. 36
12.8.8 TCR Clock - Time Code Reader and Generator ......................... 37
12.8.9 RSC Switch Card .......................................... 41
12.8.10 SPT - Single Path Through .................................... 45
12.8.11 LAN-CPU ............................................... 46
0

12.8.12 MRI - Standard Reference Input Signals ............................ 48
12.8.13 ESI - Telecom Synchronisation References ........................... 50
12.8.14 LNE-GbE: Network Expansion with Gigabit Support and SFP Option ........... 54
12.8.15 HPS-100: PTP / SyncE / Hardware NTP Interface ...................... 61
12.8.16 TSU V3: IEEE-1588 Time Stamp Unit .............................. 64
12.8.17 IMS PIO: PPS oder 10MHz I/O Module ............................ 66
12.8.18 CPE and BPE Output Modules (Frontend - Backend, Eurocard) .............. 68
12.8.19 LIU - Line Interface Unit ...................................... 85
12.8.20 LNO - 10MHz Sinus Output Module ............................... 93
12.8.21 REL1000: Error Relay Module .................................. 95
12.8.22 FDM - Frequency Deviation Monitoring ............................. 97
12.8.23 SCG-U: Studio Clock Generator ................................. 99
12.8.24 SCG-B: Studio Clock Generator Balanced ........................... 101
12.8.25 VSG - Video Sync Generator ................................... 103
13 Declaration of Conformity 106
Date: 21st August 2019 IMS-M4000

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: 2019-08-16
Version: 1.11
IMS-M4000 Date: 21st August 2019 1

2 Safety instructions for building-in equipment
This building-in equipment has been designed and
tested in accordance with the requirements of Stan-
dard IEC 60950-1 "Safety of Information Technology
Equipment, including Electrical Business Equipment".
During installation of the building-in equipment in
an end application (i.e. rack) additional requirements
in accordance with Standard IEC60950-1 have to be
taken into account.
NOTE: First attach the case to protective earth -
before you connect the M4000 with the power line
(see chapter Grounding connection M4000).
General Safety instructions
•The building-in equipment has been evaluated for use in office environment (pollution degree 2) and
may be only used in this environment. For use in rooms with a higher pollution degree more stringent
requirements are applicable.
•The equipment/building-in equipment was evaluated for use in a maximum ambient temperature of 40◦C.
•The building-in equipment may not be opened.
•Protection against fire must be assured in the end application.
•The ventilation opening may not be covered.
For AC Supply 100-240 V AC
•The building-in equipment is a class 1 - equipment and must be connected to an earthed outlet
(TN Power System).
•For safe operation the building-in equipment must be protected by max 16 A fuse in the power installation
system.
•Disconnection of the equipment from mains is done by pulling the mains plug at the outlet. Don’t use the
connector at the module for disconnection from mains.
For DC Supply 100-200 V DC
•The device can be disconnected outside the unit in accordance with the regulations as in IEC 60950-1
(e.g. through primary side line protection).
•Assembling and disassembling of the power connector is only allowed if the device is disconnected from
power supply (e.g. trough primary side line protection).
•All feed lines are sufficiently protected and dimensioned.
Fuse: T2.5A
Connector Diameter: 1mm2- 2,5mm2/ 17AWG - 13AWG
2 Date: 21st August 2019 IMS-M4000

2 Safety instructions for building-in equipment
2.1 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.
2.2 Supply Voltage
WARNING!
This device is powered by a dangerous voltage. Nonobservance of the safety instructions of this manual may
lead to serious damage to persons and property and to danger to life! Installtion, commissioning, maintenance
and operation of this device are to be carried out by qualified personnel only.
The general safety instructions and standards ( e.g. IEC, DIN, VDE, EN ) for installation and work with
high voltage equipment as well as the respective national standards and laws must be observed.
NONOBSERVANCE MAY LEAD TO SERIOUS DAMAGE TO PERSONS AND PROPERTY AND TO DAN-
GER TO LIFE!
The device may not be opened. Repair services may only be carried out by the manufaturer.
Supply lines for this decice must be equipped via an appropriate switch that must be mounted close to the
device and must be marked as a mains switch for the device.
To ensure safe operation supply mains connected to this decice must be equipped with a fuse and a fault-
current circuit breaker according to the applicable national standards for safe operation.
The device must be connected to a protective earth with low grounding resistance according to the applicable
national rules.
IMS-M4000 Date: 21st August 2019 3

2.3 Cabling
WARNING!
DANGER TO LIFE BY ELECTRICAL SHOCK! NO LIVE WORKING!
Wiring or any other work done the connectors particularly when connectors are opened may never be carried out
when the installation is energized. All connectors must be covered to prevent from accidental contact to life parts.
ALWAYS ENSURE A PROPER INSTALLATION!
2.4 Safety Hints Antenna
WARNING!
DANGER TO LIFE BY ELECTRICAL SHOCK!
Make sure to comply with the occupational health and safety standards when installing the antenna. Never
work without a proper fall protection device!
Do not carry out any installation or maintenance work on the antenna system or cabling when there is a
potential risk of lightning.
Surge Voltage Protector
Due to extremely high currents associated with lightning no surge protection device can provide absolute safety
from the impacts caused by lightning!
4 Date: 21st August 2019 IMS-M4000

2 Safety instructions for building-in equipment
2.5 Replacing the Lithium Battery
Skilled/Service-Personnel only: Replacing the Lithium Battery
The life time of the lithium battery on the receiver boards is at least 10 years. If the need arises to replace the
battery, the following should be noted:
There is a Danger of explosion if the lithium battery is replaced incorrectly. Only identical batteries or
batteries recommended by the manufacturer must be used for replacement.
The waste battery has to be disposed as proposed by the manufacturer of the battery.
2.6 Grounding connection M4000
To ensure a safe operation and to fulfil the require-
ments in accordance with IEC 60950-1, the system must
be correctly connected to an equipotential grounding
bus. On the upper left side of the chassis a ground-
ing connector is provided. The mounting components
(without a cable) are included.
1: Screw M4x6
2: Tooth washer M4
3: Plain washer M4
4: Ring or fork lug
5: Nomel washer
Note:
Use a grounding cable with >= 1,5mm2
Please ensure a correct crimp-connection!
IMS-M4000 Date: 21st August 2019 5

3 Quick Start
When booting the system the following message will be displayed while dots will be counted up in the lower line:.
Starting up
please wait ...
..........
Main Menu will be displayed with some important status informations after booting has finished:
NORMAL OPERATION
NTP: Offs. 2ms
Thu, 01.01.2008
UTC 12:00:00
If the GPS receiver remains asynchronous (Refclock LED is still red after 12 minutes) the number of satellites
in view and the good satellites are to check (press bottons ↓,→,↓from main menu). The antenna has to be
installed without any obstructions to the sky.
SV CONSTELLATION
SV in view: 10
Good Svs : 9
Sel:01 21 16 22
For first time installation enter TCP/IP address, netmask and default gateway. To get an overview of the
current configuration press F2 from main menu. Press F2 again to enter SETUP configuration page. Please
ask your administrator for propper TCP/IP configuration:
->Interfaces <-
Global Cfg.
Services
Use Up and Down
to select Port:
lan0:0 #1 of 1
>172.100.000.001
OK
Then press 3 times the OK button to change to IPV4 ETH0 configuration page to enter the IP address, netmask
and the default gateway:
NOTE: These settings are related to the first Ethernet connection (ETH0).
>IPv4 Parameter<
IPv6 Parameter
Link Mode
> ETH0 Address <
ETH0 Netmask
Def. Gateway
Set ETH0 Address
IPv4 ETH0
DHCP: enabled
172.000.000.000
OK OK
After this all further settings can be done via network interface, either by using a WEB browser or a Telnet
Session.
Default user: root
Default password: timeserver
6 Date: 21st August 2019 IMS-M4000

4 The Modular System LANTIME
4 The Modular System LANTIME
LANTIME is a set of equipment composed of a reference clock GNSS, a single-board computer SBC ELX800
500 MHz with integrated network card, and a power supply unit, all installed in a metal desktop case and ready
to operate. The interfaces provided by LANTIME are accessible via connectors in the rear panel of the case.
Details of the components are described below.
The implemented NTPD distributes the reference time from the GNSS receiver cyclic in the network. In-
formation on the NTPD is monitored on the LC-Display or can be inquired via the network.
The installation of LANTIME is very easy for the system/network administrator. The network address, the
netmask and the default gateway have to be configured from the front panel of LANTIME. The network address
or the equivalent name of LANTIME has to be shown to all NTP clients in the TCP/IP network.
As well as NTP the Linux system also supports a number of further network protocols: HTTP(S), FTP, SSH
and Telnet. Because of this remote configuration or status requests can come from any WEB browser. This
access via the network can be deactivated. Changes in the receiver status, errors or other important events are
logged either on the local Linux system or on an external SYSLOG-Server. In addition messages can be sent to
a data center via SNMP traps or automatically generated e-mails where they can be recorded. Furthermore all
alarm messages can be displayed by the large display VP100/20/NET that is accessed via network connection.
In order to avoid a service interruption several LANTIME NTP servers can be installed in the same network to
obtain redundancy.
IMS-M4000 Date: 21st August 2019 7

5 Mounting the GPS Antenna
The GPS satellites are not stationary, but circle round the globe with a period of about 12 hours. They can only
be received if no building is in the line-of-sight from the antenna to the satellite, so the antenna/downconverter
unit must be installed in a location that has as clear a view of the sky as possible. The best reception is
achieved when the antenna has a free view of 8◦angular elevation above the horizon. If this is not possible, the
antenna should be installed with the clearest free view to the equator, because the satellite orbits are located
between latitudes 55◦North and 55◦South. If this is not possible, you may experience difficulty receiving the
four satellites necessary to complete the receiver’s position solution.
The antenna/converter unit can be mounted on a wall, or on a pole up to 60 mm in diameter. A 50 cm
plastic tube, two wall-mount brackets, and clamps for pole mounting are included. A standard RG58 coaxial
cable should be used to connect the antenna/downconverter unit to the receiver. The maximum length of cable
between antenna and receiver depends on the attenuation factor of the coaxial cable.
Up to four GNSS receivers can be run with one antenna/downconverter unit by using an optional antenna
splitter. The total length of an antenna line from antenna to receiver must not be longer than the max. length
shown in the table below. The position of the splitter in the antenna line does not matter.
The optional delivered MBG S-PRO protection kit can also be used for outdoor installation (degree of protec-
tion: IP55). However, we recommend an indoor installation, as close as possible to the wall where the antenna
cable is entering, to minimize the risk of overvoltage damage, for example by lightning.
WARNING!
Antenna mounting without effective anti-fall protection
Danger to life due to fall!
- Pay attention to effective working safety when installing antennas!
- Never work without an effective anti-fall equipment!
WARNING!
Working on the antenna system during thunderstorms
Danger to life due to electrical shock!
- Do not carry out any work on the antenna system or the antenna cable
if there is a risk of a lightning strike.
- Do not carry out any work on the antenna system if the safety distance
to free lines and sequential circuits is exceeded.
8 Date: 21st August 2019 IMS-M4000

5 Mounting the GPS Antenna
5.1 Antenna Cable:
Type of cable diameter Ø Attenuation at 100MHz max lenght.
[mm] [dB]/100m [m]
RG58/CU 5mm 17 300 (1)
RG213 10.5mm 7 700 (1)
(1)This specifications are made for antenna/converter units produced after January, 2005
The values are typically ones; the exact ones are to find out from the data sheet of the used cable
5.2 Antenna Short-Circuit
(systems with front display only)
In case of an antenna line short-circuit the following message appears in the display:
ANTENNA
SHORT-CIRCUIT
DISCONNECT POWER
! ! !
If this message appears the clock has to be disconnected from the mains and the defect eliminated. After that
the clock can be powered-up again. The supply voltage for the antenna/converter unit is approx. 18.5 V DC in
idle mode and approx. 16 V DC when the GPS antenna is connected.
IMS-M4000 Date: 21st August 2019 9

5.3 Antenna Assembly with Surge Voltage Protection
Optional a surge voltage protector for coaxial lines is available. The shield has to be connected to earth as
short as possible by using the included mounting bracket. Normally you connect the antenna converter directly
with the antenna cable to the system.
GPS Antenna
free view to the sky!
Cable Slot
N-Norm female
N-Norm male
N-Norm male
N-Norm female
N-Norm female
N-Norm male Meinberg GPS
N-Norm male female
or BNC male female
as short as possible
Ground lead to PE rail
(Protective Earth)
Cable ca. 1,5 mm Ø
fastened at the surge protector
10 Date: 21st August 2019 IMS-M4000

6 40dB Multi GNSS L1 Timing Antenna with Integrated Lightning Protection
6 40dB Multi GNSS L1 Timing Antenna with
Integrated Lightning Protection
The GPS, GLONASS, Galileo and BeiDou satellites are not stationary but circle round the globe in a period of
about 12 hours. They can only be received if no building is in the line-of-sight from the antenna to the satellite,
so the antenna unit must be installed in a location with a free view to the sky. The best reception is given when
the antenna has a free view of 8◦angular elevation above horizon. If this is not possible the antenna should
be installed with a mostly free view to the equator because of the satellite courses which are located between
latitudes of 55◦North and 55◦South. If even this is not possible problems occur especially when at least four
satellites for positioning have to be found.
The active L1 timing reference antenna is specifically designed for long-lasting, trouble-free deployments for
a variety of applications. The low noise, high gain amplifier is well suited to address attenuation issues. The
proprietary quadrifiliar helix design, coupled with multistage filtering provides superior out-of-band rejection
and lower elevation pattern performance than traditional patch antennas.
•Their unique radome shape sheds water and ice, while eliminating problems associated with bird perching.
•This antenna is made of materials that fully comply with provisions stipulated by EU directives RoHS
2002/95/EC.
•The antenna provides integrated lightning protection capability.
•The antenna also features ESD, reverse polarity protection and transit voltage suppression.
A standard coaxial cable with 50 ohm impedance should be used to connect the antenna to the receiver. The
max. length of cable between antenna and receiver is 50 meters (H155 - Low-Loss).
See data sheet "40 dB Multi GNSS Timing Antenna with Integrated Lightning Protection" (pctel_gpsl1gl.pdf)
or download this document:
Active Multi GNSS Antenna
http://www.meinbergglobal.com/download/docs/other/pctel_gpsl1gl.pdf
6.1 GNSS Antenna for Stationary Installation
The Multi GNSS Antenna is an active GNSS antenna which can receive the signals of the GPS, GLONASS,
Galileo and Beidou satellite systems. It is very well suited for stationary installations, operates with a 5V DC
supply voltage provided by the receiver, and has an integrated surge protection.
The antenna cable length can be up to 70 meters if a H155 low-loss coaxial cable is used.
Mounting and Installation of the GNSS/L1 Antenna
IMS-M4000 Date: 21st August 2019 11

Multi GNSS Antenna
free view to the sky!
Type-N female
Type-N male
MEINBERG GNSS
Type SMA male female
Connection to earth rail
(Protective Earth)
cable diameter ca. 1,5 mm Ø
as short as possible
Figure: Schematic diagram of mounting the Multi GNSS Antenna
WARNING!
Antenna mounting without effective anti-fall protection
Danger to life due to fall!
- Pay attention to effective working safety when installing antennas!
- Never work without an effective anti-fall equipment!
WARNING!
Working on the antenna system during thunderstorms
Danger to life due to electrical shock!
- Do not carry out any work on the antenna system or the antenna cable
if there is a risk of a lightning strike.
- Do not carry out any work on the antenna system if the safety distance
to free lines and sequential circuits is exceeded.
12 Date: 21st August 2019 IMS-M4000

6 40dB Multi GNSS L1 Timing Antenna with Integrated Lightning Protection
6.2 GNSS Antenna for Mobile Applications
The RV-76G is an active GNSS antenna which can receive the signals of the GPS, GLONASS, and Galileo
satellite systems. It operates with a 5V DC supply voltage provided by the receiver, and should be preferred
for mobile applications. However, the maximum length of the antenna cable is limited depending on the cable
type, e.g. 5 meters with RG174/U cable, so this antenna is less suitable for stationary installations.
Figure: Installation drawing RV-76G antenna
WARNING!
Antenna mounting without effective anti-fall protection
Danger to life due to fall!
- Pay attention to effective working safety when installing antennas!
- Never work without an effective anti-fall equipment!
WARNING!
Working on the antenna system during thunderstorms
Danger to life due to electrical shock!
- Do not carry out any work on the antenna system or the antenna cable
if there is a risk of a lightning strike.
- Do not carry out any work on the antenna system if the safety distance
to free lines and sequential circuits is exceeded.
IMS-M4000 Date: 21st August 2019 13

7 Booting the Single Board Computer
The LINUX operating system is loaded from a packed file on the flash disk of the single board computer to a
RAM disk. All files of the flash disk are stored in the RAM disk after booting. This guarantees that the file
system is in a defined condition after restart. This boot process takes approximately two minutes. During this
time the following message appears on the display:
NORMAL OPERATION
NTP: not sync
Thu, 01.01.2008
UTC 12:00:00
NORMAL OPERATION
NTP:sync to local
Thu, 01.01.2008
UTC 12:00:00
After starting the LINUX system, the network function is initiated and the communication program with the
receiver and the NTPD (NTP daemon) is started. Then NTPD starts synchronization with the reference clocks
(usually the hardware clock of the single board computer and the integrated receiver clock). The message "NTP:
sync to local" is displayed until synchronization is complete.
For the synchronization of the NTPD with the time reference it is necessary that the receiver is synchronous
with the incoming time signal. In this case the following message is monitored on the display:
NORMAL OPERATION
NTP: Offs. 2ms
Thu, 01.01.2008
UTC 12:00:00
The second line shows the user that the NTPD is synchronized with the receiver with an offset of 2ms (Figure).
Because of the internal time of the NTP which is adjusted by a software PLL (phase locked loop) it takes a
certain time to optimise this offset. The NTPD tries to keep the offset below +-128 ms; if the offset becomes
too large, the system time is set with the receiver’s time. Typically values for the offset are +-5 ms after the
NTPD has already synchronized.
14 Date: 21st August 2019 IMS-M4000

8 Configuration User Interface
8 Configuration User Interface
There are several ways to configure the LANTIME parameters:
Command Line Interface (CLI) via TELNET
Command Line Interface via SSH
Command Line Interface via serial terminal in front panel
(38400/8N1/VT100)
HTTP Interface
Secure HTTP Interface (HTTPS)
Front panel LCD/VFD Interface (except LANTIME M100)
SNMP Management
In order to be able to configure the time server via the web interface or a telnet/SSH connection, an IP address
has to be assigned via the front panel keys and LC/VF display (for automatic assignment possibilities please
refer to: DHCP IPv4 or AUTOCONF IPv6). LANTIME variants without a display can be configured using the
serial terminal interface (labeled “Term” or “Terminal”) The termin program should be set to 38400Baud / 8N1
– VT100 emulation. Once the IPv4 address, net mask and IPv4 GATEWAY have been set up or the network
interface has been automatically configured with DHCP/Autoconf, further configuration changes can be done
via a network connection:
To set up a TELNET connection the following commands are entered (replace 198.168.10.10 with the IP of
your LANTIME):
telnet 198.168.10.10 // LANTIME IP address
user: root
password: timeserver
With “setup” the configuration program is started.
To set up a SSH connection the following commands are entered:
ssh [email protected] // LANTIME IP address
password: timeserver
With “setup” the configuration program is started.
To set up a HTTP connection the following address is to enter in a web browser:
http://198.168.10.10 // LANTIME IP address
password: timeserver
To set up a Secure HTTP (HTTPS) connection the following address is entered in a web browser:
https://198.168.10.10 // LANTIME IP address
password: timeserver
IMS-M4000 Date: 21st August 2019 15