Meinberg NTP-SLAVE-CLOCK User manual

MANUAL
NTP-SLAVE-CLOCK
Analog Wall Clock - PoE Power Supply
2nd July 2015
Meinberg Radio Clocks GmbH & Co. KG

Page 0
Table of Contents
1 Imprint 1
2 NTP - Wall Clock with LAN-PoE 2
3 LAN-PoE Converter 4
3.1 Features of the LAN-PoE Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2 MicroProcessorSystem........................................ 4
3.3 DCF77-Port24Emulation....................................... 5
3.4 SerialPort............................................... 5
3.5 Technical Specications LAN-PoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.5.1 Connectors........................................... 7
3.5.2 Format of the Meinberg Standard Time String . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Initial Start of Operation 9
4.1 PowerSupply ............................................. 9
4.2 NetworkConguration ........................................ 9
4.2.1 DHCP............................................. 9
4.2.2 ARPMethod ......................................... 9
4.3 Extended Conguration via Telnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3.1 Menu Option 0: Server conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3.2 Menu Option 1: Security conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3.3 Menu Option 2: SNMP Conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3.4 Menu Option 3: Syslog Conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3.5 Menüpunkt 4: DCF_Mark Conguration . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3.6 Menu Option 5: Time Zone Conguration . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3.7 Menu Option 6: NTP Client Conguration . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3.8 Menu Option 7: Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3.9 Menu Option 8: Exit without save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3.10 Menu Option 9: Save and exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Declaration of Conformity 15
0 Date: 2nd July 2015 NTP-SLAVE-CLOCK

Page 1
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: [e-mail]
Date: 2015-03-18
NTP-SLAVE-CLOCK Date: 2nd July 2015 1

Page 2 2 NTP - Wall Clock with LAN-PoE
2 NTP - Wall Clock with LAN-PoE
Case: Ø cir. 300 mm, depth cir. 55 mm
Ø cir. 400 mm, depth cir.ca. 55 mm
metal case, white or black painted
Protection Rating: IP 40 (EN 60529)
LAN-Bus: For running NTP slave clocks a time server is required.
Front Glass: Domed mineral glass on 300 mm cases, shock-resistant.
Plexiglas on 400 mm case.
Face: High distinction white metal with black arabic numerals for easy,
doubt-free reading even over longer distances.
Face printed according to DIN 41091.
Hands: Black bar-type hour and minute hands, red second hand.
PoE: NTP slave clocks require a PoE (Power over Ethernet) power supply.
Appropriate hardware has to be supplied by customer.
2 Date: 2nd July 2015 NTP-SLAVE-CLOCK

Page 3
Connection Diagram
Funkuhren GmbH &
Co. KG
LAN-PoE
Power over Ethernet - NTP Client
Diagnostic
Link
DCF
NTP Time Server
Network SwitchLAN-PoE
NTP
NTP
DCF_Port24
Rear View - Wall Clock with LAN-PoE Module
NTP-SLAVE-CLOCK Date: 2nd July 2015 3

Page 4 3 LAN-PoE Converter
3 LAN-PoE Converter
The LanPoE converter module uses its NTP synchro-
nized timebase to generate DCF-Port 24 pulses. Power
over Ethernet technology lets the user install a synchro-
nized clock system without the cost of installing AC
outlets. The existing Ethernet LAN is used to power
the module and also to synchronize the time informa-
tion. It is possible to congure a number of LanPoE
converters via Telnet.
Wherever a PoE-Ethernet is not available, it is rec-
ommended to use a simple midspan power injector as
a power supply. Conguration of the time zone as well
as changes of daylight saving conguration occurs via
Telnet. The free running clock is beeing synchronized
cyclic via the network connection (10/100MBit, RJ45)
by a NTP time server using the Network Time Protocol.
The UTC time from the NTP server is converted into
the users local time by congurable parameters and the
DCF-Port 24 pulses are generated correspondingly.
Funkuhren GmbH & Co. KG
Lange Wand 9
31812 Bad Pyrmont / Germany
LAN-PoE
Power over Ethernet - NTP Client
Diagnostic
Link
DCF
3.1 Features of the LAN-PoE Converter
The LANPOE Converter unit is a stand-alone free running clock with integrated power over Ethernet supply. A
time string is sent via the serial port periodically once per second after synchronization with NTP. The format of
the time string is described in the section "Technical Specications". Baudrate and framing are set to 9600 baud,
8N1. This conguration is not to be changed. The module generate also an DCF77_PORT24 output signal.
3.2 Micro Processor System
The time strings received from the network are decoded by the microprocessor system. The checked and decoded
time is written to the on-board software clock and the DCF77_Port24 interface. A watchdog lets the micropro-
cessor recover from malfunction. A power-fail comparator resets the microprocessor if the supply voltage drops
below a specied threshold.
4 Date: 2nd July 2015 NTP-SLAVE-CLOCK

3.3 DCF77-Port24 Emulation Page 5
3.3 DCF77-Port24 Emulation
The Converter generate an time mark signal which is compatible with the time marks spread by the German long
wave transmitter DCF77. This time mark are available as an demodulated time signal at each DFK-connector.
The pulse voltage is 15 V/DC (aktiv low DCF77-Marks) with max. pulse current of 80 mA. The coding sheme
is given below:
0
10
20
30
40
50
R
M
1
4
2
1
0
2
10
8
4
2
1
P2
20
0
1
8
4
2
1
2
4
8
10
1
2
4
8
10
20
40
80
P3
A1
1
Z
Z2
A2
S
1
2
4
8
10
20
40
P1
Kodierung
nach Bedarf
Minute
Stunde
Kalendertag
Wochentag
Kalender-
monat
Kalenderjahr
M Minutenmarke (0.1 s)
R Aussendung über Reserveantenne
A1 Ankündigung Beginn/Ende der Sommerzeit
Z1, Z2 Zonenzeitbits
Z1, Z2 = 0, 1: Standardzeit (MEZ)
Z1, Z2 = 1, 0: Sommerzeit (MESZ)
A2 Ankündigung einer Schaltsekunde
S Startbit der codierten Zeitinformation
P1, P2, P3 gerade Paritätsbits
3.4 Serial Port
One asynchronous serial interface (RS-232) called COM are available to the user. A time string is sent via the
serial port periodically once per second after synchronization with NTP. The format of the time string is described
in the section "Technical Specications". Baudrate and framing are set to 9600 baud, 8N1. This conguration
is not to be changed.
NTP-SLAVE-CLOCK Date: 2nd July 2015 5

Page 6 3 LAN-PoE Converter
3.5 Technical Specifications LAN-PoE
Interface: one serial RS232
Baudrate: 9600
Framing: 8N1
Output String: after synchronization with NTP,
see "Format of the Meinberg Standard Time String"
Outputs: DCF_Port24
pulse voltage: 15 V (active low DCF77 pulses)
pulse current: 80mA max.
over 2-pol. Phoenix DFK connector
NTP Request Time: LAN-PoE Converter inquires the time information from the NTP server
and sets its own free-running clock every 64s
Status-LEDs: three status LEDs; Diagnostic, Link, DCF
Connectors: RJ45 10/100MBit Ethernet connector (IEEE802.3af, PoE)
D-SUB9 female connector
DFK-2 connector
Physical
Dimensions: 24mm x 71mm x 84mm / height x width x depth
Power
Requirements: PoE (Power over Ethernet)
Ambient Temperature: 0 ... 50
◦
C
Humidity: 85% max.
6 Date: 2nd July 2015 NTP-SLAVE-CLOCK

3.5 Technical Specications LAN-PoE Page 7
3.5.1 Connectors
Label Connector Type Cable
-
LAN(PoE) RJ-45 Ethernet with PoE 10 MBit data line
COM 9pin SUB-D RS232 shielded data line
Pin 2 - TxD;
Pin 3 - RxD;
Pin 5 - GND;
DCF_Port24 DFK DCF_Port24
CE Label
This device conforms to the directive 2004/108/EC
on the approximation of the laws of the Member
States of the European Community relating to
electromagnetic compatibility.
NTP-SLAVE-CLOCK Date: 2nd July 2015 7