Meinberg LANTIME IMS-M500 User manual

MANUAL
LANTIME IMS-M500
Modular Railmount NTP Server
9th June 2016
Meinberg Radio Clocks GmbH & Co. KG

Front view (Frontansicht) LANTIME IMS-M500

Bottom view (Ansicht Unterseite) LANTIME IMS-M500

Table of Contents
1 Imprint 1
2 Safety instructions for building-in equipment 2
2.1 AdditionalSafetyHints ........................................... 3
2.2 SupplyVoltage ................................................ 3
2.3 Cabling..................................................... 4
2.4 SafetyHintsAntenna ............................................ 4
2.5 ReplacingtheLithiumBattery ....................................... 5
2.6 GroundingconnectionIMS-M500 ..................................... 5
3 Quick Start 6
4 The Modular System LANTIME 7
4.1 SupportedNetworkServices ........................................ 7
4.2 AdditionalFeatures ............................................. 7
4.3 UserInterface................................................. 8
4.4 InputandOutputOptions.......................................... 8
4.5 Why to use a Network Time Server? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Mounting the GPS Antenna 10
5.1 Example:.................................................... 10
5.2 Antenna Assembly with Surge Voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.3 AntennaShort-Circuit ............................................ 12
6 Available GPS / GLONASS L1 Antennas 13
6.1 40dB GPS-L1/GLONASS-L1/GALILEO-E1 Timing Antenna with Integrated Lightning Protection 13
6.2 RV-76G GPS/GLONASS Antenne for mobile Applications . . . . . . . . . . . . . . . . . . . . . . . 14
7 Booting the Single Board Computer 16
8 Configuration User Interface 17
9 The Menues in Detail 18
9.1 RootMenu................................................... 18
10 The graphical user interfaces 20
11 The WEB Interface 21
12 Attachment: Technical Information 22
12.1 Technical Specifications LANTIME / IMS-M500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
12.2 Available Modules and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
12.3TERMINAL(Console) ............................................ 24
12.4USBConnector................................................ 24
12.5IMSModuleOptions............................................. 25
12.5.1 Power Supply 100-240 V AC/DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
12.5.2 PowerSupply20-72VDC..................................... 26
12.5.3 GPSClock .............................................. 27
12.5.4 GLNClock .............................................. 28
12.5.5 LAN-CPU............................................... 29
12.5.6 Reference Input Modules (MRI, ESI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
12.5.7 CPE and BPE Output Modules (Frontend - Backend) . . . . . . . . . . . . . . . . . . . . . 32
12.5.8 LNE-GbE: Network Expansion with Gigabit Support . . . . . . . . . . . . . . . . . . . . . 37
12.5.9 HPS-100: PTP / SyncE / Hardware NTP Interface . . . . . . . . . . . . . . . . . . . . . . 38
12.5.10 TSU V3: IEEE-1588 Time Stamp Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
0

12.5.11LIU-LineInterfaceUnit...................................... 41
12.5.12 LNO - 10MHz Sinus Output Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
12.5.13 FDM - Frequency Deviation Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
12.5.14 SCG - Studio Clock Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
12.5.15 VSG - Video Sync Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
12.5.16 CES - Chassis Expansion Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
13 Declaration of Conformity 55
Date: 9th June 2016 LANTIME IMS-M500

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 - 30
Internet:http://www.meinberg.de
Mail: [email protected]
Date: 2015-08-26
LANTIME IMS-M500 Date: 9th June 2016 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 IEC 60950-1 have to be
taken into account.
NOTE: First attach the case to protective earth -
before you connect the IMS-M500 with the power line
(see chapter Grounding connection IMS-M500).
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 100-240 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: 9th June 2016 LANTIME IMS-M500

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.
LANTIME IMS-M500 Date: 9th June 2016 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: 9th June 2016 LANTIME IMS-M500

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 IMS-M500
Note:
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 rear panel of the system a grounding
connector is provided.
Note:
Use a grounding cable with >= 1,5mm2
Please ensure a correct crimp connection!
LANTIME IMS-M500 Date: 9th June 2016 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: 9th June 2016 LANTIME IMS-M500

4 The Modular System LANTIME
4 The Modular System LANTIME
The LANTIME family of products are composed of an internal reference clock (GPS, GLONASS, DCF77 or
IRIG time code receiver), an SBC LX800 500 MHz single-board computer with integrated network card, and a
T60B power supply unit all installed in a metal desktop case and ready to operate. The interfaces provided
by the LANTIME are accessible via connectors on the rear panel of the case. Details of the components are
described below.
The implemented NTPD distributes the reference time from the GPS receiver cyclicly in the network. In-
formation on the NTPD is monitored on the LC display or can be queried over the network. The installation
of LANTIME is very easy for the system or network administrator - the network address, netmask, and default
gateway have to be configured from the front panel of the LANTIME. The network address or the equivalent
name of the LANTIME has to be shown to all NTP clients in the TCP/IP network.
In addition to NTP the Linux system also supports a number of further network protocols: HTTP(S), FTP,
SSH and Telnet. Thus, remote configuration or status requests can come from any Web browser. This access
via the network can be deactivated if desired. Changes in the receiver status, errors, and other important events
are logged either on the local Linux system or on an external SYSLOG-Server. Messages can also be sent to
a data center via SNMP traps, or by automatically generated emails where they can be recorded. All alarm
messages can also be displayed by the large VP100/20/NET display and accessed via network connection. In
order to avoid a service interruption, several LANTIME NTP servers can be installed in the same network for
redundancy.
4.1 Supported Network Services
The following network services are provided via RJ45 10/100Base-T Ethernet (Auto sensing):
- NTP v2, v3, v4
- NTP broadcast mode
- NTP multicast
- NTP symmetric keys
- NTP Autokey
- Simple Network Time Protocol (SNTP)
- TIME
- SNMP v1,2,3 with extended SNMP-Agent and SNMP-Traps for NTP and reference clock status
- DHCP Client
- NFS
- TELNET
- FTP
- HTTP
- HTTPS with Openssl2
- SSH2 Secure Shell Login
- Alarm messages via e-mail
- IPv6
- 3 global IPv6 addresses configurable
- Autoconf Feature to be disabled
- supported network services: NTP, HTTP, HTTPS, SNMP, SSH
- Windows „net time“ via NETBIOS
- Winpopup (Window Mail)
4.2 Additional Features
•external NTP timeserver
LANTIME IMS-M500 Date: 9th June 2016 7

•free configuration of NTP: thereby MD5 authentication and access control via address & mask restriction
•extended menu guidance for configuration and monitoring via Telnet, SSH or serial terminal interface
•extended HTTP statistic support with long-term graphic and access statistic to NTP
•alarm messages can be displayed on external large display VP100/20/NET
•USB memory stick slot for extended functionality: software update, transfer of secure certificates, log files
and configurations, keypad locking
4.3 User Interface
•Terminal connection via serial interface, status LED
•Web browser interface with graphical statistic of the one-day cycle offsets
•Telnet or Secure Shell Login for password protected operation of the Linux operating system
•FTP access for updating the operating system and downloading log files
•Simple Network Management Protocol for automatically SNMP-Traps in case of alarm
•SYSLOG messages can be passed to different computers
•Configurable e-mail notification
•Simulation of a synchronous radio clock in order to operate without antenna
4.4 Input and Output Options
•Additional Ethernet RJ45 connectors available (eight in 3U housing, four in 1U housing and eight addi-
tional connectors in HS - XL railmount housing)
•Frequency and pulse outputs via BNC connectors (e.g. 10 MHz, 2.048 MHz, PPS)
•Higher free running accuracy with optional oscillators (OCXO)
•IRIG-B outputs
•ANZ14NET or VP100/20/NET as display connected via network
4.5 Why to use a Network Time Server?
In principle it is possible to synchronize your computers with time servers on the internet. However, a lot of
our customers rely on their own time server in their network environment for security and/or maintainability
reasons.
•Particularly in the case of our LANTIME you or a responsible person can be notified by mail or SNMP
trap if there is a malfunction in your time synchronization.
•The clients on the network do not depend on an active internet connection.
•The clients on the network do not depend on the availability of an external time server.
•A test of other freely available time servers reported that many NTP servers distributed a significantly
wrong time, although they were classified as stratum-1 time servers. This is the responsibility of the
server’s administrators.
•If an internet connection is working properly then NTP can determine and account for the packet transmis-
sion delays quite reliable. However, if the internet connection is at its capacity limit, time synchronization
can be significantly degraded due to high dispersion in packet transmission delays. Reasons for this may
be hacker attacks, which must not address your own network, or new viruses causing a huge flood of
emails, like it has already happened in the past.
In the United States the U.S. Naval Observatory (USNO) has a similar function to spread the legal time as the
PTB in Germany, and also operates publicly available NTP servers for a long time. Those NTP servers are
more and more constrained by "bad" clients, which makes the future of the public service questionable. There
are already precautions to limit the affect of such clients. Dave Mills, the originator of NTP, cooperates with
8 Date: 9th June 2016 LANTIME IMS-M500

4 The Modular System LANTIME
the USNO and has already adverted this in the NTP news group.
The topics outlined above should provide some arguments to install an own time server, if an accurate time
is a requirement for the reliable operation of a local network.
LANTIME IMS-M500 Date: 9th June 2016 9

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 GPS180 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 pro-
tection: IP55). However, we recommend an indoor installation, as short as possible after wall entering of the
antenna cable, to minimize the risk of overvoltage damage by lightning for example.
5.1 Example:
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
10 Date: 9th June 2016 LANTIME IMS-M500

5 Mounting the GPS Antenna
5.2 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.
LANTIME IMS-M500 Date: 9th June 2016 11

5.3 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 antenna supply voltage must be 15VDC .
12 Date: 9th June 2016 LANTIME IMS-M500

6 Available GPS / GLONASS L1 Antennas
6 Available GPS / GLONASS L1 Antennas
For our combined GPS / GLONASS satellite receivers, there are two available antennas, which are designed
for different tasks or applications. Our standard accessory includes a 40 dB L1 GPS / GLONASS L1 antenna,
which is optimized for stationary operation.
For mobile applications, such as motor vehicles, ships, trains and planes we recommend the use of the RV-
76G, an active GPS / GLONASS antenna, suitable for direct mounting into an enclosure (chassis, panels, etc.).
6.1 40dB GPS-L1/GLONASS-L1/GALILEO-E1 Timing Antenna with
Integrated Lightning Protection
The GPS and GLONASS 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 GPS L1/GLONASSL1/GALILEO E1 Timing Antenna with Integrated Lightning Pro-
tection" (pctel_gpsl1gl.pdf) or download this document:
Active GPS/GLONASS Antenna
http://www.meinbergglobal.com/download/docs/other/pctel_gpsl1gl.pdf
LANTIME IMS-M500 Date: 9th June 2016 13

6.2 RV-76G GPS/GLONASS Antenne for mobile Applications
Features
- Low noise figure
- Fully weather proof
- Excelent temperature stability
- High sensitivity
The RV-76G GPS / GLONASS antenna is the integration of a high performance GPS patch antenna and
a state-of-the-art low noise amplifier into a very low-profile, extremely compact and fully waterproof enclosure
which, when connected to a GPS receiver with 5 V DC antenna power, provide adequate signal amplification
and out-band rejection.
The flat design and the robustness of the case make the RV-76G to one of the most popular antennas on
the vehicle navigation and marine market.
Figure: RV-76G with Mounting Kit
Technical Drawing
14 Date: 9th June 2016 LANTIME IMS-M500