Mobatime DTS 4801.masterclock User manual

© MOBATIME BE-800652.11
MOUNTING AND
INSTRUCTION MANUAL
Net Master Clock
DTS 4801.masterclock
DTS 4802.masterclock
Network Timeserver and Master Clock

© MOBATIME 2 / 120 800652.11
Certification of the Producer
STANDARDS
The DTS 4801.masterclock and the DTS 4802.masterclock were developed and produced in accordance
with the EU Guidelines:
2006 / 95 / EG
2004 / 108 / EG
96 / 48 / EG
CB Test Certification (IEC 60950-1) :
DTS 4801 / DTS 4802
References to the Instruction Manual
1. The information in this Instruction Manual can be changed at any time without notice.
The current version is available for download at www.mobatime.com.
2. The device software is continuously being optimized and supplemented with new options. For this
reason, the newest software version can be obtained from the Mobatime website.
3. This Instruction Manual has been composed with the utmost care, in order to explain all details in
respect of the operation of the product. Should you, however, have any questions or discover any
errors in this Manual, please contact us.
4. We are not liable for any direct or indirect damages which could occur when using this Manual.
5. Please read the instructions carefully and only use the product, after you have correctly understood all
the information for installation and operation.
6. It is prohibited to reproduce, store in a computer system, or transfer this publication, or any part of it in
any way. The copyright remains with all the rights with BÜRK MOBATIME GmbH,
D-78026 VS-Schwenningen and MOSER-BAER AG – CH 3454 Sumiswald / SWITZERLAND.

© MOBATIME 3 / 120 800652.11
Overview
1Safety ................................................................................................................................................ 6
2Maintenance...................................................................................................................................... 8
3General Information: Introduction...................................................................................................... 9
4Displays........................................................................................................................................... 13
5Installation ....................................................................................................................................... 15
6Operation......................................................................................................................................... 17
7Updates........................................................................................................................................... 71
8Time administration......................................................................................................................... 77
9SNMP.............................................................................................................................................. 83
10Description of the switch function.................................................................................................... 90
APPENDIX
AConnection diagrams ...................................................................................................................... 92
BTime Zone Table ............................................................................................................................. 96
CAlarm List ........................................................................................................................................ 99
DTroubleshooting............................................................................................................................. 101
ESerial Telegrams ........................................................................................................................... 102
FOption IRIG-B: IF 488 Configuration ............................................................................................. 108
GCopyright Notice............................................................................................................................ 109
HBlock diagram................................................................................................................................ 110
ITechnical data............................................................................................................................... 111
JIndex.............................................................................................................................................. 114
KConnection Table (to be filled-in) .................................................................................................. 116

© MOBATIME 4 / 120 800652.11
Table of contents
1Safety .............................................................6
1.1Safety instructions....................................... 6
1.2Symbols and Signal Words used in this
Instruction Manual....................................... 6
1.3Intended Use ............................................... 6
1.4Observe operating safety! ........................... 7
1.5Consider the installation site! ...................... 7
1.6Please observe the electromagnetic
compatibility!................................................ 7
2Maintenance...................................................8
2.1Troubleshooting: Repairs ............................ 8
2.2Cleaning ...................................................... 8
2.3Disposing..................................................... 8
3General Information: Introduction...................9
3.1Scope of Delivery ........................................ 9
3.2Technical Data ............................................ 9
3.3Device Description in this Manual ............... 9
3.4Device Description ...................................... 9
3.5Device types.............................................. 10
3.6DTS Distributed Time System................... 11
3.7MOBA-NMS - Network Management
System ...................................................... 11
3.7.1Overview of the main functions .............................12
3.7.2Device management .............................................12
4Displays........................................................13
4.1LED displays front view............................. 13
4.2LED displays rear view.............................. 13
4.3Display....................................................... 14
5Installation ....................................................15
5.1Installation Guidelines ............................... 15
5.2Connections .............................................. 15
5.3Boot procedure of the DTS
480x.masterclock ...................................... 15
5.4Firmware ................................................... 15
5.5Basic settings (factory settings) ................ 16
6Operation......................................................17
6.1General...................................................... 17
6.1.1Serial connection...................................................18
6.1.2Telnet ....................................................................18
6.1.3SSH .......................................................................18
6.1.4Menu structure ......................................................19
6.2MOBA-NMS operation .............................. 20
6.3Main menu................................................. 21
6.4Status menu .............................................. 22
6.4.1Time information and status ..................................24
6.4.2Time source information........................................25
6.5Configuration menu................................... 26
6.5.1Lines......................................................................27
6.5.2MOBALine .............................................................28
6.5.3IRIG-B, AFNOR (Option).......................................29
6.5.4Impulse line ...........................................................30
6.5.5DCF active code line .............................................31
6.5.6DCF / Pulse output ................................................33
6.5.7Serial telegrams ....................................................34
6.5.8RS 485 Clock line..................................................36
6.5.9NTP slave clocks / Time zone server ....................39
6.5.10Switch function / Switch program ..........................41
6.5.11Time handling........................................................45
6.5.12General time configuration ....................................46
6.5.13Time source...........................................................47
6.5.14NTP server ............................................................48
6.5.15Communication Alarm Network (CAN) to MTC .....52
6.5.16Manual time set .....................................................53
6.5.17Alarms ...................................................................54
6.5.18Alarm relays ..........................................................54
6.5.19Alarm mask ...........................................................55
6.5.20E-mail ....................................................................56
6.5.21SNMP-Traps..........................................................58
6.5.22General settings ....................................................60
6.5.23Network .................................................................61
6.5.24Services (network services FTP, telnet, SSH....) ..64
6.5.25SNMP ....................................................................65
6.5.26SNMP V1 / V2c .....................................................66
6.5.27SNMP V3...............................................................67
6.5.28Time zone selection ..............................................69
6.6Maintenance menu ....................................70
7Updates........................................................ 71
7.1Updating images with MOBA-NMS............71
7.2Updating images via FTP ..........................71
7.3Updating applications or configurations
via FTP.......................................................72
7.4Updating images via USB..........................72
7.5Updating applications or configurations
via USB ......................................................73
7.6FTP connection..........................................74
7.7SFTP Connection.......................................74
7.8SCP Connection ........................................75
7.9Save configuration externally.....................75
7.10Copying Telegram or Program files to the
DTS 480x.masterclock...............................76
8Time administration...................................... 77
8.1Concept of time administration ..................77
8.2Time take-over, NTP..................................78
8.3Fix stratum for local time source................79
8.4Time server................................................80
8.5Time accuracy, time-keeping.....................80
8.6Leap second ..............................................80
8.7NTP Authentication....................................80
8.7.1NTP symmetric keys .............................................80
8.7.2NTP Autokey .........................................................82
9SNMP........................................................... 83
9.1General ......................................................83
9.2Device configuration with SNMP ...............84
9.3DTS Subagent SNMP Notification.............84
9.3.1Startup [dts480xStartUp] .......................................84
9.3.2Shutdown [dts480xShutdown]...............................84
9.3.3Status changed [dts480xStatusChanged] .............85
9.3.4Configuration changed
[dts480xConfigChanged].......................................85
9.3.5Alive Notification [dts480xAlive] ............................89
9.3.6Alarm Notification [dts480xAlarm] .........................89
10Description of the switch function ................ 90
10.1General Description ...................................90
10.2Combination of the signals ........................91
10.3Behavior at start-up, exchange of switch
program file................................................91

© MOBATIME 5 / 120 800652.11
APPENDIX
AConnection diagrams ...................................92
A.1Front connections...................................... 92
A.2Connections (rear view) DTS
4801.masterclock ...................................... 93
A.3Connections (rear view) DTS
4802.masterclock ...................................... 94
A.4Plug-in spring terminals............................. 95
A.5Connection of GPS 4500, DCF 450 /
4500 or GNSS 3000.................................. 95
BTime Zone Table ..........................................96
CAlarm List .....................................................99
C.1Alarms ....................................................... 99
DTroubleshooting..........................................101
ESerial Telegrams ........................................102
E.1General.................................................... 102
E.2Syntax of the telegram configuration file. 104
FOption IRIG-B: IF 488 Configuration ..........108
GCopyright Notice.........................................109
HBlock diagram.............................................110
ITechnical data............................................111
JIndex...........................................................114
KConnection Table (to be filled-in) ...............116

© MOBATIME BE-800652.11
1 Safety
1.1 Safety instructions
Read this chapter and the entire instruction manual carefully and follow all instructions
listed. This is your assurance for dependable operations and a long life of the device.
Keep this instruction manual in a safe place to have it handy every time you need it.
1.2 Symbols and Signal Words used in this Instruction Manual
Danger!
Please observe this safety message to avoid electrical shock!
There is danger to life!
Warning!
Please observe this safety message to avoid bodily harm and injuries!
Caution!
Please observe this safety message to avoid damages to property and devices!
Notice!
Additional information for the use of the device.
1.3 Intended Use
The DTS 480x.masterclock is a master clock for the use in network environments. It
can be synchronized from NTP and be used as NTP server. In addition, it can read the
time from DCF or GPS (e.g. from GPS 4500).
It can operate as master clock for a self-setting MOBALine clock line (with switching
function e.g. for clock illumination, switching program and for world time function) or it
can drive a line of impulse clocks or DCF active code clocks. The DTS 4802 has 2
such lines.
For additional functions, see the device descriptions in Chapter 3.4.
The device is designed for 19" racks and intended to be installed in a 19" cabinet.
Operate the device only in installed condition.
!
!

© MOBATIME 7 / 120 800652.11
1.4 Observe operating safety!
Never open the housing of the device! This could cause an electric short or even a
fire, which would damage your device. Do not modify your device!
The device is not intended for use by persons (including children) with limited
physical, sensory, or mental capacities or a lack of experience and/or knowledge.
Keep packaging such as plastic films away from children. There is the risk of
suffocation if misused.
1.5 Consider the installation site!
To avoid any operating problems, keep the device away from moisture and avoid
dust, heat, and direct sunlight. Do not use the device outdoors.
The device is designed for 19" racks and should only be operated installed in a 19"
cabinet.
Danger! Make sure
that you wait before using the device after any transport until the device has
reached the ambient air temperature. Great fluctuations in temperature or
humidity may lead to moisture within the device caused by condensation, which
can cause a short.
1.6 Please observe the electromagnetic compatibility!
This device complies with the requirements of the EMC and the Low-voltage
Directive.
This product belongs to Class A in accordance with EN 55022.
This equipment can lead to radio interference. In this case, measures must be taken
by the user.
!
Caution!
!
Caution!
!
Caution!

© MOBATIME 8 / 120 800652.11
2 Maintenance
2.1 Troubleshooting: Repairs
Please read carefully Appendix "D Troubleshooting" if your device does not work
properly.
If you cannot rectify the problems, contact your supplier from whom you have
purchased the device.
Any repairs must be carried out at the manufacturer’s plant.
Disconnect the power supply immediately and contact your supplier, if …
liquid has entered your device
the device does not properly work and you cannot rectify this problem yourself.
2.2 Cleaning
Please make sure that the device remains clean especially in the area of the
connections, the control elements, and the display elements.
Clean your device with a damp cloth only.
Do not use solvents, caustic, or gaseous cleaning substances.
2.3 Disposing
Device
At the end of its lifecycle, do not dispose of your device in the regular household
rubbish. Return your device to your supplier who will dispose of it correctly.
Packaging
Your device is packaged to protect it from damages during transport.
Packaging is made of materials that can be disposed of in an environmentally friendly
manner and properly recycled.

© MOBATIME 9 / 120 800652.11
3 General Information: Introduction
3.1 Scope of Delivery
Please check your delivery for completeness and notify your supplier within 14 days
upon receipt of the shipment, if it is incomplete.
The package you received contains:
DTS masterclock
Mounting set for rack mounting consisting of:
- 4 pcs nuts for 19" housing
- 4 screws M6 for the nuts
- 4 plastic discs for screws M6
Connector set
- plug 3-pole black for power supply
- spring terminal 12-pole orange
- spring terminal 8-pole orange
- spring terminal 5-pole orange
- spring terminal 2-pole orange
2 pcs mounting tools with spring terminals
3.2 Technical Data
See Appendix "I Technical data".
3.3 Device Description in this Manual
This instruction manual is for the master clocks DTS 4801.masterclock and DTS
4802.masterclock. Below both models will be referred to as the DTS
480x.masterclock and only as 4801 or 4802 with regard to the special features of the
individual models.
.
3.4 Device Description
The DTS 480x.masterclock is a master clock for use in network environments. It can
be synchronized both from NTP and also function as an NTP server. In addition, it can
import the time from DCF or from GPS (e.g. from GPS 4500).
As a master clock, it can supply a self-adjusting MOBALine clock line (with switch
function for clock illumination, switch program and world time function) or alternatively
to the MOBALine clock line, a line can also be operated with impulse clocks or DCF
active code clocks. The DTS 4802 is equipped with two such lines.
Alternatively it can generate serial telegrams and output them via RS 485 (only DTS
4801) or RS 232. Optional the DTS 4801 is able to drive a monitored RS485 clock line
(with switch function for clock illumination) with up to 31 devices.
The DTS 480x can supply NTP clocks with NTP and time zone tables using multicast.
As the "Main“ master clock, it can synchronize other master clocks or other equipment
with DCF and monitor with 4 alarm inputs. As an option to DCF, synchronization pulses
can also be generated.

© MOBATIME 10 / 120 800652.11
The DTS 480x can send both e-mails and SNMP traps for alerting purposes.
Using SNMP, configuration and system status can be requested and the DTS 480x
operated.
The DTS 480x can be connected as a master clock to a MTC CAN module which can
monitor and synchronize up to 16 master clocks.
As part of the DTS system, it functions as a master clock or clock line.
3.5 Device types
Model: Characteristics: Product no.:
DTS 4801.masterclock
According to the description above
1 clock line MOBALine/Impulse/DCF
active code
1 RS 485 clock line
203397
DTS 4801.masterclock IRIG-B Like DTS 4801, additional with IRIG-B /
AFNOR / DCF-FSK – line
(built in IF 488 interface) 203495
DTS 4802.masterclock
According to the description above
2 clock lines MOBALine/Impulse/DCF
active code
no RS 485 clock line
203782

© MOBATIME 11 / 120 800652.11
3.6 DTS Distributed Time System
The DTS (Distributed Time System) is a system developed by the company Moser-
Baer AG to link decentralized main clocks, slave clock lines, and time servers. The
LAN (Ethernet) is used as connection. The DTS can be centrally operated and
monitored.
3.7 MOBA-NMS - Network Management System
MOBA-NMS is a software used for central management and inquiry of state and alarm
information. It supports DTS devices as well as all MOBATime analog and digital
network clocks and can handle a network with more than 1000 devices. This software
provides extensive functions for the configuration, installation, back-up / recovery etc.
especially for DTS devices.
True to the DTS concept, MOBA-NMS can be installed multiple times in one network.
With different user rights on the device and software level, the configuration abilities of
different users can be set as required.
For DTS devices, all communication is conducted over SNMP V3. The SFTP protocol
is used for broadcasting files.

© MOBATIME 12 / 120 800652.11
3.7.1 Overview of the main functions
The main MOBA-NMS functions for DTS devices and network clocks are listed below:
automatic device scan over multicast or IP range
device management using user-defined device groups see chapter „3.7.2 Device
management“
intuitive user interface with input check for the device configuration
status / alarm request and display on the device group level
device firmware update for one or several devices (parallel)
support for device commands, e. g. reset, restart etc.
back-up / recovery of DTS devices
transfer of the whole DTS configuration to another device
user management with different access rights
monitor for NTP and time zone packages
editor for time zone files
online help
etc.
3.7.2 Device management
All MOBATime network devices are displayed in the so-called device view. Here, the
devices can be grouped according to user-defined criteria. For this, the individual
devices can simply be moved to the according groups and sorted using drag and drop.
There is no limit to the number of groups and sub-groups.
Besides the organizational advantages (easier locating, better
overview), a device group has the following advantages:
commands and device updates can be applied to the whole
group (including sub-groups).
Alarms and errors of included devices are displayed on the
group level.
Complete groups can be moved / sorted among
themselves.
The content of the device view can be saved and opened at a
later time. The created structure and breakdown into groups is
preserved.

© MOBATIME 13 / 120 800652.11
4 Displays
4.1 LED displays front view
Description Color Status Description
power Green On
Off
Mains or DC power supply is in order
No power supply
alarm Red On
Off
The alarm relay signalizes an alarm
No active alarms
sync Green On
Flashing
Off
DTS 480x masterclock can read the time from a
synchronization source
Time source internally (RTC) or manual time setting
(flashing till "NTP synch. Lost" alarm appears or an
external time source is available after restart)
Synchronization source is not available.
Off when alarm "Failure time source Str" occurs.
See chapter 6.5.12, menu 1: "Stratum limit for
synchalarm".
For DCF time source the delay for this alarm is
defined in chapter 6.5.13, menu 7: "Stratum TO (0-16)
DCF/GPS fail".
LAN control lamps:
Left Green
Orange
Blinking
Blinking
Network activity
No connection to network
Right Yellow Off
On
10 Mbit
100 Mbit
4.2 LED displays rear view
Description Color Status Description
DCF in red Blinking DCF (GPS reception)

© MOBATIME 14 / 120 800652.11
4.3 Display
Display showing the current status of the DTS 480x.
Display of: -Time, date
-Current time source
-Stratum of the DTS 480x.masterclock
-Line time of MOBALine / Impulse lines
-Software-Version
-IPv4 address
-IPv6 address
-Alarm summary
-Current alarms
The display can be operated by means of the corresponding “Display“ button:
First press the button briefly: Switch on the background light
Other buttons to press briefly: Scroll through all displays
Press button longer (>3 sec): Change to default display (time and date)
The display changes after approx. 3 min without pressing the button for the default
display and the background light goes off.
If a USB stick has been plugged in, it will be displayed. Should only telegram and/or
program files be copied, this can be activated directly with the button. (Press the button
until the copy process starts).

© MOBATIME 15 / 120 800652.11
5 Installation
5.1 Installation Guidelines
Danger! Always consider:
For mains power supply, a plug is located on the rear side of the DTS 4801 / DTS
4802. This power plug separates the device from the power.
The DTS 480x must be unplugged from the mains power supply for maintenance
or wiring by pulling this plug.
The plug supplied may only be connected by a licensed electrician.
The effective national installation requirements and guidelines must be followed.
5.2 Connections
The connections are specified in Appendix "A Connection diagrams".
Only connect the designated devices to the various inputs and outputs.
5.3 Boot procedure of the DTS 480x.masterclock
The normal booting time of the DTS 480x is approx. 60 sec. with pre-set IP or with
DHCP. The booting procedure of the operating system is displayed on the serial
console. After that, the text "starting" appears on the display (during the booting
procedure the display is dark and empty). Without connection to a DHCP server, the
first start up can take up to 75 seconds. After that, the DHCP option must be set to "off"
in the network configuration.
The display “starting“ remains until the time of output to the lines.
The duration, depending on the configuration, is 5-30 sec.
5.4 Firmware
It is recommended to install the current firmware on your device prior to the definite
commissioning. The current firmware can be found under www.mobatime.com 
Customer Data Product Ressources Time Server.

© MOBATIME 16 / 120 800652.11
5.5 Basic settings (factory settings)
General Internal time zone MEZ
Menu password dts
Language English
Time source Source DCF-GPS (UTC)
Stratum auto
Error stratum 5
DCF timeout off
DCF correction 0ms
Offset per Stratum 50ms
Synch only offset off
Lines DCF output off, UTC
Lines 1 and 2 on, MOBALine, MEZ
NTP slave clocks /
Time zone server off
RS485 / telegram off
switching function off
Network DHCP on
DHCPv6 off
Autoconf IPv6 off
Link auto
Hostname DTS4801
Alarm Relay all on, except 4 alarm inputs
Mail off
SNMP traps off
NW Services SSH on
Telnet on
FTP on
SNMP Modus off
RO community romobatime
RW community rwmobatime
SNMP Traps Mode off
Trap community trapmobatime

© MOBATIME 17 / 120 800652.11
6 Operation
6.1 General
Operation occurs via a terminal menu or SNMP. SNMP operation is explained in
Chapter “9 SNMP". Operation with the terminal menu takes place either via Telnet,
SSH, or via a serial terminal. The serial terminal is particularly used for the first
configuration. After a connection has been set up, the login screen is displayed:
To start the menu, dts must be logged in as user. The standard password is dts.
(Changing the password see Chapter “4.4.20 General Settings“).
Only one menu can be open at any time. The first menu started has priority. The menu
is automatically closed after 15 min. without operation, and any possible connection via
Telnet or SSH interrupted.
Backspace:
Backspace must be set to "delete“with the serial terminal:
For example, for HyperTerminal under "File Properties Settings - Backspace
sends DEL" must be selected.
Localecho:
Some terminals (serial or Telnet) do not display the characters entered. It is, therefore,
necessary to switch on the "local echo" in the terminal.

© MOBATIME 18 / 120 800652.11
6.1.1 Serial connection
38400 Bauds, 8 data bits, no parity, 1 stop bit.
Windows 2000, XP, Vista: HyperTerminal
Windows 7: Putty (Download from Internet)
Linux: Minicom
Switch off Xon/Xoff and hardware handshake.
After establishing the serial connection, the menu can be initialized with ENTER.
When rebooting, the boot process will be displayed on the serial console.
Attention: The serial connection should always be disconnected before switching off
the operating PC (exit terminal program or pull out the RS232).
6.1.2 Telnet
Windows 98, 2000, XP, Vista, Windows 7: Start Run telnet [IP-address]
Password: dts
NetTerm (Shareware)
Linux: Start console and enter “telnet [IP-address]
6.1.3 SSH
Windows 98, 2000, XP, Vista, Windows 7: e.g. with Putty
Linux: Start console and enter “ssh dts@[IP-address]“
Password: dts
!

© MOBATIME 19 / 120 800652.11
6.1.4 Menu structure
The current menu is always displayed in the menu title. The menu options show all
the selectable menu functions. Provided the menu item is not a further menu, the set
parameters are displayed. Error messages (e.g. invalid entries) or additional
information to the selected menu items are displayed in the response line. The input
line shows the current input values or options possible. The status line only appears,
when an information has to be displayed, e.g. "An alarm is active".
All entries must be completed with ENTER (Return) (e.g. also ESC).
The menu window can always be exited with Ctrl-C (incl. termination of the Telnet and
SSH connection).
The desired menu can be selected with the relevant number.
The numbers 98 and 99 are always used identically:
With 98, the settings entered are saved and the menu exited. Depending on the
change, the DTS 480x or only partial functions are rebooted.
With 99, all changes to the menu are reversed and the menu exited.
In the menus where data cannot be saved (command 98), the menu is only exited
with 99, but any changes are not saved.
The current menu is updated, without any further entry, with ENTER.
menu title
menu o
p
tions
input line (prompt)
response line
p
arameters
status line

© MOBATIME 20 / 120 800652.11
6.2 MOBA-NMS operation
For the configuration of DTS devices via GUI, MOBA-NMS (see chapter „3.7 MOBA-
NMS - Network Management System“) can be used. All configuration possibilities are
subordinated in different configuration pages (called „tabs“). These tabs are connected
to the terminal menu and designated accordingly. Example: The terminal menu
„Configuration Alarms“ can be found in MOBA-NMS under the tab „Alarms“.
Configuration example of a DTS 4801.masterclock:
For further details on the general MOBA-NMS operation, check the integrated online
help (menu „Help Show help“).
Important: In order for the communication between MOBA-NMS and the DTS
devices to work, SNMP must be activated! Set terminal menu
„Configuration SNMP SNMP Mode“ to „on“. SNMP is active by
default.
configuration pages
(
tabs
)