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RT430

RT430-TM-EN-5

APPENDIX E - GPS ANTENNA DELAY COMPENSATION

The antenna cable affects the unit's performance in two different ways: GPS signal attenuation and GPS

signal propagation delay.

GPS Signal Attenuation

GPS signal attenuation is related to cable type and overall cable length. When using the active antenna

supplied by Alstom, total attenuation should not exceed 32 dB.

Total attenuation can be computed by using:

Where

is the attenuation per unit length for the given cable and

is the overall cable length.

The table below shows a few typical cable configurations and the associated total attenuation.

TABLE D.1: Antenna cables attenuation.

Cable length

Cable RGC58

Cable RGC8

m (50 ft)

7 dB

—

m (82 ft)

12 dB

—

m (164 ft)

23 dB

—

m (246 ft)

—

12 dB

m (328 ft)

—

17 dB

m (410 ft)

—

21 dB

m (492 ft)

—

25 dB

Propagation Delay

Содержание Reason RT430

Страница 1: ... apply to any particular project This will depend on the technical and commercial circumstances It is provided without liability and is subject to change without notice Reproduction use or disclosure to third parties without express written authority is strictly prohibited Technical Manual GPS Grandmaster Clock Platform Hardware Version A Platform Software Version 05 Publication Reference RT430 TM...

Страница 2: ...isation Checklist 14 4 6 Peripheral Circuitry 14 4 7 Upgrading Servicing 15 5 Decommissioning and Disposal 15 6 Standards Compliance 15 6 1 EMC Compliance 16 6 2 Product Safety 16 6 3 Installation Category 16 6 4 Protective Class 16 6 5 Environment 16 6 6 R TTE Compliance 16 1 DESCRIPTION 17 1 1 INTRODUCTION 17 1 2 FOREWORD 18 1 3 KEY FEATURES 18 1 4 AVAILABLE MODELS 19 1 4 1 NETWORK PORTS 19 1 4 ...

Страница 3: ...HERNET PORTS 26 1 6 15 ENVIRONMENT 26 1 6 16 DIMENSIONS WEIGHT 28 2 INSTALLATION 29 2 1 UNPACKING 29 2 2 NORMAL USE OF THE EQUIPMENT 29 2 3 EXTERNAL INDICATIONS 29 2 4 ENVIRONMENT 30 2 5 MOUNTING 30 2 6 CONNECTORS 30 2 7 POWER SUPPLY 31 2 7 1 AC POWER CONNECTION 32 2 7 2 DC POWER CONNECTION 32 2 7 3 EARTHING GROUNDING 33 2 8 POWERING UP 33 2 9 GPS ANTENNA TERMINAL 34 2 10 TTL ELECTRICAL OUTPUTS 36...

Страница 4: ... 2 51 4 2 2 DEFAULT GATEWAY 51 4 2 3 DNS SERVER 52 4 2 4 SENDING CONFIGURATION 52 4 2 5 CONFIGURATION SUMMARY 52 4 3 TIME FEATURES 53 4 3 1 TIME SETTINGS 54 4 3 2 SENDING CONFIGURATION 54 4 3 3 CONFIGURATION SUMMARY 55 4 4 SYNCHRONISM OUTPUTS 55 4 4 1 OUTPUTS 56 4 4 2 SERIAL DATAGRAM 57 4 4 3 CUSTOMIZABLE DATAGRAMS 57 4 4 4 SENDING CONFIGURATION 59 4 4 5 CONFIGURATION SUMMARY 59 4 5 PTP CONFIGURAT...

Страница 5: ...N 71 5 2 3 EVENTS INPUT 72 6 MAINTENANCE 74 6 1 SYNCHRONISM FAILURE LOCKED SIGNALING 74 6 1 1 LOCKED INDICATOR IHM 74 6 1 2 REMOTE MONITORING WEB INTERFACE 74 6 1 3 DRY CONTACT RELAY LOCKED 74 6 1 4 IRIG B SIGNAL 75 6 1 5 PTP PROTOCOL 75 6 1 6 NTP PROTOCOL 75 6 1 7 SNTP PROTOCOL 75 6 2 FIRMWARE UPDATE 75 6 3 EQUIPMENT KEY CHANGE 76 6 4 CLEANING INSTRUCTIONS 78 6 5 EQUIPMENT RETURN 78 6 6 INSTRUCTI...

Страница 6: ...GPS Grandmaster Clock 6 RT430 TM EN 5 APPENDIX E GPS ANTENNA DELAY COMPENSATION 97 APPENDIX F APPLICATION EXAMPLES 99 ...

Страница 7: ...rovement and for this Alstom it is subject to change without notice Please make sure that this is latest version of this document before proceeding All specifications are subject to changes without prior notice Certification to the ISO 9001 2008 quality standard is an example of this commitment We encourage and appreciate any feedback and will use it to improve our products and services ...

Страница 8: ...ector do type D subminiature DC Direct Current DCF77 Time synchronism protocol Deutschland LORAN C Long Range Navigation C Frankfurt 77 77 5 kHz DNS Domain Name System DTE Data Terminal Equipment E2E End to end ETH Abbreviation of the term Ethernet FW Abbreviation of the term Firmware GND Abbreviation of the term Ground GPS Global Positioning System GPZDA Serial Datagram format HTTP Hypertext Tran...

Страница 9: ...Protocol PPS Pulse per Segundo PPX Pulse per X s PTP Precision Time Protocol RFC Data formatting specification RFC 1951 DEFLATE RJ45 Ethernet Connector with 8 condutors RS232 485 Serial port levels RT Temporal Recorder Alstom s Temporal Synchronization Equipment RX Receiving data SNMP Simple Network Management Protocol SNTP Simple Network Time Protocol ST Bayonet lock connector TCP Transmission Co...

Страница 10: ...iliar with the installation commissioning and operation of the equipment and the system to which it is being connected familiar with accepted safety engineering practises and are authorised to energise and de energise equipment in the correct manner trained in the care and use of safety apparatus in accordance with safety engineering practises trained in emergency procedures first aid The document...

Страница 11: ...Hazards Many injuries are caused by Lifting heavy objects Lifting things incorrectly Pushing or pulling heavy objects Using the same muscles repetitively Plan carefully identify any possible hazards and determine how best to move the product Look at other ways of moving the load to avoid manual handling Use the correct lifting techniques and Personal Protective Equipment PPE to reduce the risk of ...

Страница 12: ...by reducing test voltages to zero before disconnecting test leads It is the responsibility of the user to ensure that the equipment is installed operated and used for its intended function in the manner specified by the manufacturer If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired To reduce the risk of electrical shock ...

Страница 13: ...ly which is only accessed by opening the product This does not remove the requirement for external fusing or use of an MCB as previously mentioned The ratings of the internal fuses are RT430 unit 2 Amp type T 250V rating 4 4 Equipment Connections Terminals exposed during installation commissioning and maintenance may present a hazardous voltage unless the equipment is electrically isolated Tighten...

Страница 14: ...ther actions The PCT connection must have low inductance and be as short as possible For best EMC performance ground the unit using a 10 mm 0 4 inch wide braided grounding strap All connections to the equipment must have a defined potential Connections that are pre wired but not used should be earthed or connected to a common grouped potential Pay extra attention to diagrams before wiring the equi...

Страница 15: ...l and safety capacities will not be affected 4 7 Upgrading Servicing Do not insert or withdraw modules PCBs or expansion boards from the equipment while energized as this may result in damage to the equipment Hazardous live voltages would also be exposed endangering personnel Internal modules and assemblies can be heavy and may have sharp edges Take care when inserting or removing modules into or ...

Страница 16: ...es a protective conductor earth to ensure user safety 6 5 Environment IEC 60068 2 1 IEC 60068 2 2 IEC 60068 2 30 IEC 60068 2 14 IEC 60255 21 1 IEC 60255 21 2 The equipment shall always be installed in a specific cabinet or housing which will enable it to meet the requirements of IEC 60529 with the classification of degree of protection IP54 or above 6 6 R TTE Compliance Radio and Telecommunication...

Страница 17: ...in the network NTP SNTP IRIG B004 Demodulated IRIG B124 Modulated DCF77 Serial Datagrams through the RS232 and RS422 485 serial ports This User Manual is structured as follows Chapter 1 presents the description of the RT430 its applications technical characteristics and presentation of the manual Chapter 2 shows how the RT430 should be installed considering the power cable connection sync outputs ...

Страница 18: ...rotocol according to IEEE1588 2008 standard PTP profile option according to IEEE C37 238 standard High accuracy internal oscillator system Time signals in IRIG B004 IRIG B124 or DCF77 format Pulses 100 pulses per second 1 pulse per second 1 pulse per minute Freely configurable low frequency pulse generator from 1 pulse every 60 seconds to 1 pulse every 24 hours Pulse on time with daily repetition ...

Страница 19: ...the features used in the two Ethernet network interfaces and the level of the power supplies For information about the different models go to the order code on datasheet of the equipment 1 4 1 Network Ports Each network interface can have the configuration shown in the table below TABLE 1 Possible configuration of Ethernet ports according to the enabled and blocked features ETHERNET PORT 1 ETHERNE...

Страница 20: ...RT430 It has an LCD display 16 columns x 2 lines for time monitoring and network setup The display s first screen shows temporal reference information day of the week day month year day of the year hours minutes seconds time zone and the number of monitored satellites By navigating through the display using the buttons arrows pointing right and left it is possible to check the configuration of the...

Страница 21: ...outputs RS232 and RS422 485 serial ports Ethernet network communication ports and GPS antenna input For information on installing the equipment access Chapter 2 1 6 Technical Specifications 1 6 1 Power Supply TABLE 3 Power supply specifications Operating nominal voltage 100 250 V dc 110 240 V ac Operating voltage range 80 275 V dc 88 264 V ac Frequency 50 60 Hz 3Hz Power Consumption MAX 20VA Typic...

Страница 22: ... e 100m optionals Connector BNC female 1 6 3 GPS Antenna TABLE 5 GPS Antenna specifications Type 3 3V TNC Female active GPS antenna 100mA max Frequency 1 575 GHz t3MHz OutputVSWR 2 0 Max Impedance 50 ohms Gain 27 dB Typical Noise Figure 1 2dB DC Voltage DC 3 3V DC Current 22 mA Typical Working Temp 40 C 85 C Connector TNC 1 6 4 Antenna Cable ...

Страница 23: ...able Velocity of propagation 82 Impedance 50 ohms Capacitance 81pF m 1 6 5 Internal Oscillator TABLE 7 Internal oscillator specifications Drift without external reference 0 1 ppm 1 6 6 TTL Level Electrical Outputs IRIG B004 PPx DCF77 TABLE 8 Electrical outputs specifications Connectors 4 4 screw two outputs 2 BNC High Level 1 4 8 Vd c Low Level 2 0 2 Vd c Impedance 10 Ω Current 150 mA 1 Level abov...

Страница 24: ...Connector ST Weve length 820 nm Fiber Type Multimodo 50 125 µm 100 140 µm ou 200 µm HCS Emission power 17 8 dBm 50 125 µm 14 0 dBm 62 5 125 µm 8 5 dBm 100 140 µm 5 7 dBm 200 µm HCS Length of optical fiber cables should not exceed 2 Km 1 6 9 Amplitude Modulated Outputs TABLE 11 Amplitude modulated outpus specifications Signal IRIG B124 Connector BNC female Empty Amplitude 4 Vpp 50 Ω Amplitude 3 Vpp...

Страница 25: ...RS232 ou RS422 485 Bitrate 1200 2400 4800 9600 19200 ou 38400 bps Databits 7 ou 8 Stopbits 1 ou 2 Parity nome ever or add Connector DB9 male standard DTE 1 6 11 Dry contact Relay LOCKED TABLE 13 LOCKED dry cantact Relay specifications Switching Capacity 300 mA 250 V d c 1000 mA 125 V d c Contact Normally Closed 1 6 12 Event Input TABLE 14 Event Input specification Signals PPS PPM or other variable...

Страница 26: ...sation End to End Multicast Unicast Peer to Peer Multicast Profiles Standard Power System 1 6 14 Ethernet Ports TABLE 16 Ethernet ports specification Transmission Rates 10 100 Mbps Connector RJ45 Protocols NTP v2 RFC 1119 NTP v3 RFC 1305 NTP v4 sem RFC SNTP SMNP IEEE 1588 PTP HTTP 1 6 15 Environment TABLE 17 Environment specification Operating temperature range 40 55 C or 13 F to 131 F Maximum ope...

Страница 27: ...ndensing As tested per 60068 2 1 40 C As tested per 60068 2 2 85 C TABLE 18 Enclosure Protection IEC 60529 Front flush mounted with panel IP54 Rear and sides IP20 Product safety protection IP20 for the rear due to live Connections on the terminal block ...

Страница 28: ...RT430 TM EN 5 1 6 16 Dimensions Weight TABLE 19 Dimensions and weight specification Height 1 U Width bory 430 mm 16 9 in Depth 180 mm 7 1 in Weight 2 7 kg 5 9 lbs RT430 dimensions are shown on Figure 3 Figure 3 RT430 Dimensions ...

Страница 29: ...o maintain the equipment integrity levels of protection and assure user safety the RT430 shall be installed in an enclosed panel with recommended ingress protection rating of IP54 or above The enclosing panel shall ensure that the equipment rear connections and sides are unexposed and protected against impact and water meanwhile maintaining adequate temperature and humidity condition for the devic...

Страница 30: ...er cables should be installed respecting the 30mm minimum bending For more information about the equipment dimensions access Chapter 1 2 6 Connectors Components and connectors of RT430 s rear panel are shown in Figure 5 Figure 5 Rear panel connectors TABLE 20 Connectores do painel posterior do equipamento Indicador Descrição A 2 AC or DC inputs B 2 electrical outputs for synchronism with BNC conne...

Страница 31: ...should use insulated flameproof flexible cable BWF type with a 1 5 mm cross section 70 C thermal class and 750V insulation voltage To reduce the risk of electrical shock pre insulated tubular pin terminals should be used on the ends of the power connections Figure 6 Pre insulated tubular pin terminals The pin terminals should be completely inserted into the connector supplied with the unity so tha...

Страница 32: ...er supply this devccccice should interrupt both the hot L and neutral N power leads An external 10 A category C bipolar circuit breaker is recommended The circuit breaker should have an interruption capacity of at least 25 kA and comply with IEC 60947 2 The switch or circuit breaker must be suitably located and easily reachable also it shall not interrupt the protective earth conductor 2 7 2 DC Po...

Страница 33: ... Powering Up Before energizing the unit be familiarized with all the risk and attention indicators in the equipment frame Connect the power supply including the ground lead to the appropriate terminals The unit performs a self test procedure and the ALARM indicator will remain lit At the end of the self test the equipment will perform initialization of the GPS receiver At the end of approximately ...

Страница 34: ...LOCKED indicator will stop blinking and will remain lit as soon as maximum accuracy is achieved This process may take several minutes if the equipment was transported for more than a few hundred kilometers or was unpowered for many weeks The antenna must be mounted outdoors in a vertical position with an unobstructed view of the sky as Figure 12 The antenna should be placed above the height of the...

Страница 35: ...C conduit threaded on one end To install it cut down to the intended size and screw the antenna in the conduit The conduit can be fixed on the wall so that the antenna is above the wall limit and free from lateral obstacles as shown in Figure 13 Figure 13 Posição recomendada para instalação do eletroduto da antena GPS Cables with lengths ranging from 15m 50 ft to 150 m 492 ft can be purchased from...

Страница 36: ...et time pulses The polarity of the signal can also be configured For details on the configuration of TTL Level electrical outputs refert to Chapter 4 2 11 Open collector electrical outputs RT430 has 2 open collector electrical outputs shown in Figure 15 Figure 15 Open collector electrical outputs See Chapter 1 for description of signal levels and maximum charge The type of signal at each output ca...

Страница 37: ...scale the resistor use the relationship Where Vc is the external voltage to be switched by the open collector output The resistor power should be adequate for the voltage and current values to be switched i e Do not connect the open collector electrical outputs without an external resistor properly sized or another appropriate mechanism to limit current 2 12 Optical Outputs RT430 has 2 outputs for...

Страница 38: ...ble to configure the outputs to generate daily set time pulses The polarity of the signal can also be configured For details on the configuration of optical outputs see Chapter 4 2 13 Amplitude modulated outputs RT430 has 1 amplitude modulated output shown in Figure 18 It always generates IRIG B124 signal Figure 18 Amplitude modulated output Use coaxial cables with an impedance of 50Ω and BNC on t...

Страница 39: ...ce of the internal converter 8 422 485 TX 9 422 485 TX The bitrate format number of data bits party number of stop bits and datagram type can be configured using the Web Interface as well as the type of signal transmitted by the pin OUT pin 4 Pins 2 3 and 5 uses RS232 interface Pins 8 and 9 uses RS422 or RS485 interface For existing datagrams details see Appendix C For serial port configuration se...

Страница 40: ...loses GPS satellite reference the dry contact closes signaling synchronism loss 2 16 Event input RT430 has 1 input to signal TTL Level external events shown in Figure 21 Figure 21 Event input This input can be used to verify the PTP signal quality when RT430 is used as slave PTP signal receiver from external source via network To use the event input to verify the signal quality a synchronism outpu...

Страница 41: ...sm signal 2 17 Type Test TABLE 22 EMC tests were performed according to IEC 60255 26 referring to the following standards IEC 61000 4 2 2008 6kV contact 8KV air IEC 61000 4 3 2006 10 V m IEC 61000 4 4 2012 2 KV 5KHz IEC 61000 4 5 2005 Differential mode 1KV Common mode 2KV IEC 61000 4 6 2008 10V IEC 61000 4 8 2009 30A m continuos 300A m 1s ...

Страница 42: ... Test level 0 residual voltage Duration time a c 1 cycle d c 16 6ms Test level 40 residual voltage Duration time a c 12 cycles d c 200ms Test level 70 residual voltage Duration time a c 30 cycles d c 500ms A C and d c voltage interruptions Test level 0 residual voltage Duration time a c 300 cycles d c 5s ...

Страница 43: ...50dB μV m quasi peak at 3m 230 to 1000MHz 57dB μV m quasi peak at 3m CISPR22 2008 Radiated emission The definition of the limit frequency is based on the maximum internal frequency of the equipment On RT430 the maximum internal frequency is 100 MHz For this case the levels of CISPR 11 satisfy the normative IEC 60255 26 Conducted emission Limits 0 15 to 0 50MHZ 79dB μV quasi peak 66dB μV average 0 ...

Страница 44: ...ntal tests IEC 60068 2 1 40 C 16 hours Cold IEC 60068 2 2 85 C 16 hours Dry heat IEC 60068 2 30 95 no condensation 55 C Damp heat IEC 60068 2 14 40 C to 85ºC 9 hours 2 cycles Change of temperature IEC 60255 21 1 Class 2 Vibration IEC 60255 21 2 Class 1 Shock ...

Страница 45: ...le is transmitting signal and the ACTIVITY led blinks when there is data exchange Figure 23 Electrical communication interface via Ethernet network The Ethernet 1 communication interface can also be enabled to send PTP synchronism messages according to the unit model as Chapter 1 presents For PTP protocol configuration details see Chapter 4 3 2 Factory default settings Factory defaults for Etherne...

Страница 46: ...RNET parameters can be configured through a Web Interface For details of ETHERNET ports configuration see Chapter 4 3 3 Network port and communication protocols To ensure free access to communication via Ethernet the following ports and protocols should be enabled TABLE 28 Communication port and protococols Port Protocol Use 80 TCP IP Remote access via Web 123 UDP SNTP Time synchronism 319 UDP Sen...

Страница 47: ... white green 4 Blue 4 Blue 5 Striped white blue 5 Striped white blue 6 Orange 6 Green 7 Striped white brown 7 Striped white brown 8 Brown 8 Brown Figure 24 Direct communication architecture using the Ethernet electrical port In the direct communication with the unit it is necessary both the computer and the unit connected on the same local network To do so configure the computer network connection...

Страница 48: ...ssible connect a cross over network cable to the computer from a terminal using command line and run a ping command to the IP address of the unit 3 5 Communication via Ethernet network For communication via ETHERNET port connect one of the ports to the same network the computer is connected using a pin to pin cable as shown in Figure 25 Figure 25 Architecture of communication via Ethernet port In ...

Страница 49: ...t through a web browser as the unit it is connected to a local network To use all RT430 features through the Web Interface make sure one of the web browsers below downloadable from the internet are installed Internet Explorer versão 7 or superior Mozilla Firefox versão 3 0 or superior Connect to the Web Interface by entering the unit IP address into the address field of your web browser After the ...

Страница 50: ... menu item The configuring sections are Ethernet allows configuring the network parameters Time Settings allows configuring the time parameters Time Signals allows configuring signals sent by synchronism outputs PTP allows configuring synchronism parameters through PTP Setup allows manipulating configurations changing access control and key and updating firmware Chapter 5 describes firmware update...

Страница 51: ...ly decimal numbers The Network Mask field allows entering the network mask from the network to which the unit will be connected only decimal numbers The Broadcast field allows entering the subnet address to which the unit will be connected only decimal numbers 4 2 2 Default Gateway Gateway configuration allows RT430 to communicate with other devices connected to a local subnet The IP Address field...

Страница 52: ...nit will go momentarily out of operation Once the transmission is concluded a message appears on the screen informing the network parameters change and suggesting the browser to be reloaded and use the new configuration Figure 27 shows the username and password window and the message after transmission Figure 27 Username and password Window and message after transmitting new network parameters to ...

Страница 53: ...00 00 00 00 00 Not configurable IP Adress 0 0 0 0 Only decimal numbers Network Mask 0 0 0 0 Only decimal numbers Broadcast 0 0 0 0 Only decimal numbers Gateway IP Adress 0 0 0 0 Only decimal numbers Port Ethernet 1 Ethernet 2 Ethernet 3 Ethernet 4 DNS Server IP Adress 0 0 0 0 Only decimal numbers 4 3 Time features The Time Settings section of the Web Interface shown in Figure 28 allows configuring...

Страница 54: ...nges made to the unit By clicking APPLY a window will open requiring configuration username and password Enter username and password and click LOGIN To cancel de action click CANCEL During the transmission the unit will go momentarily out of operation Once the transmission is concluded a message appears on the screen informing the time parameters change and suggesting the browser to be reloaded an...

Страница 55: ...rameters Timezone h 12 até 12 hours m 00 ou 30 minutes DST selected DST enabled unselected DST disabled Start End h 00 até 23 hours m 00 até 60 minutes first second third ou last week of the month Sunday Monday Tuesday Wednesday Thursday Friday ou Saturday day of the week January February March April May June July August September October November ou December month 4 4 Synchronism outputs The TIME...

Страница 56: ...als one screw and other BNC Both terminals can be used simultaneously although its configuration is unique so the same signal will be applied to both terminals OPTO 1 2 allows configuring the two TTL Level optical outputs OC 1 2 allows configuring the two open collector outputs RS232 allows configuring the Out pine signal of the serial output For each electrical optical open collector or serial ou...

Страница 57: ...t ACEB NEMEA GPZDA Meinberg and customizable datagrams are possible When choosing a customizable datagram it is necessary to enter a characters set according to the time information used For more details about ACEB NEMEA GPZDA and Meinberg datagrams see Appendix C A serial datagram is sent each second The field On time mark allows choosing if the sending will be synchronized with the beginning or ...

Страница 58: ...m TABLE 35 Customizable datagram special characters Paramter Values Description H 00 23 Hours M 00 59 Minutes S 00 59 Seconds j 001 366 day of the year d 01 31 day of the month m 01 12 Month y 00 99 year the last two digits Y 2000 2099 year four digits u 1 7 day of the week 1 monday w 0 6 day of the week 0 sunday s S ou _ DST S if DST _ in oder case o _ ou status _ if locked in oder case O _ ou st...

Страница 59: ...e unit By clicking APPLY a window will open requiring configuration username and password Enter username and password and click LOGIN To cancel de action click CANCEL During the transmission the unit will go momentarily out of operation Once the transmission is concluded a message appears on the screen informing the outputs synchronism signal change Figure 31 shows the username and password window...

Страница 60: ... TABLE 36 Summary of configurable parameters of synchronism outputs Outputs Output TTL 1 2 signal OFF PPS 100PPS PPX PPM TMARK IRIG B e DCF77 polarity normal ou inverted Output OPTO 1 2 signal OFF PPS 100PPS PPX PPM TMARK IRIG B e DCF77 polarity normal ou inverted Output OC 1 2 signal OFF PPS 100PPS PPX PPM TMARK IRIG B e DCF77 polarity normal ou inverted ...

Страница 61: ...60 seconds PPX 60 seconds até 24 hours Cable delay compensation 0 até 999 meters Serial datagram Datagram ACEB NEMEA GPZDA Meinberg ou Custom If uses Custom inserting the datagram On time mark Char start of first start of first Char start of last start of last Serial Speed 38400 19200 9600 4800 2400 ou 1200 bps Data 7 ou 8 Parity ímpar par or no parity Stop bit 1 ou 2 ...

Страница 62: ...the IEEE1588 standard assigns the name of Profile The unit provides 3 distinct ways to configure its Profile Power Profile profile with all predetermined characteristics where the user cannot change any parameters The characteristics are shown in its respective fields and are non editable The Power Profile configuration is o Domain number 0 o UDP network protocol o Two step operation mode o Mechan...

Страница 63: ...ayer 3 network layer according to IEEE1588 standard The field Network Protocol informs the UDP network protocol used by the unit 4 5 4 Operation mode The field operation mode allows configuring the operation mode according to the form RT430 sends its messages as follows One step Synchronism information and timestamp information are sent in the same data packet Two step synchronism information is s...

Страница 64: ...frequency to send messages and the waiting time of Announce message receipt through the fields below The field Delay request interval allows choosing the frequency to send messages with delay measurement It is possible to configure the unit to send 16 messages per second until one message every 32 seconds The field Announce interval allows choosing the frequency to send messages that apply the dev...

Страница 65: ...losed Figure 33 Username and password window and message after transmitting new time parameters to the unit 4 5 9 Configuration summary The table below presents all configurable PTP synchronism parameters and its possible values and variables TABLE 37 Summary of configurable PTP synchronism parameters Profile Power Features defined as non configurable Default Domain number 0 priority 128 and opera...

Страница 66: ... E2E Clock Slave enables de use as slave Priority 1 of 0 a 255 2 of 0 a 255 Intervals between sent messages Delay request 1 16 up to 32 seconds Announce 1 16 up to 32 seconds Sync 1 16 up to 32 seconds Response time of messages Announce receipt 0 a 255 ...

Страница 67: ...up Configuration It is possible to receive a file with the current configuration of the unit and store it in a directory on the computer Saving the final configuration of the unit as a backup is recommended o Download allows saving the current configuration of the unit in rt430 format By clicking DOWNLOAD a window will open to save the file in a directory on the computer Restore Configuration It i...

Страница 68: ... configuration password of the unit New password allows entering a new configuration password Confirm password confirmation of the new password entered Apply allows transmitting the new password to the unit By clicking APPLY a window will open requiring configuration username and password Enter the current username and password and click LOGIN To cancel the action click CANCEL During the transmiss...

Страница 69: ...cy is achieved The ALARM indicator should light up for a brief period of time while the unit is being initialized After concluding the initialization the unit will start operating and this indicator should turn off In case the ALARM indicator remains on the unit will not be operating and it will be necessary the operator attention 5 1 2 Display monitoring The unit has a LCD display 16 columns for ...

Страница 70: ...apter 3 If the unit is not using factory default settings see Section 5 1 2 for instructions to obtain the current IP address A start page containing the unit status information opens once you access the Web Interface The remaining monitoring and configuring sections are on a menu on the left To access them click the desired menu item The configuring sections are Status monitoring the status of th...

Страница 71: ...ber of monitored satellites is indicated Antenna indicates if the GPS antenna is properly connected to the unit Alarm indicates if the unit is presenting internal failure Time presents the local time UTC off set and time zone Position latitude longitude and altitude information Channels monitored satellites information number phase noise azimuth and elevation 5 2 2 General information The section ...

Страница 72: ...rt 5 2 3 Events input The section EVENT of the Web Interface shown in Figure 41 allows monitoring the timestamp of received pulses from event input of RT430 The timestamp frequency that is registered in log files is according to the pulse frequency received through the event input This input can be used to check the PTP signal quality when RT430 is used as slave i e receiver of PTP signal from ext...

Страница 73: ...put The update of timestamps is not automatic To visualize them the button UPDATE must be clicked Log file Allows visualizing the log file in a txt format containing the timestamps registered in the unit By clicking DOWNLOAD a window will open to save the file in a directory on the computer The unit packs 3600 timestamps each turned hour and discards the old timestamps i e there are 3600 recent ti...

Страница 74: ...rding to the recommendations of Chapter 2 6 1 1 Locked indicator IHM The LOCKED indicator located in the front panel will be off when there is no synchronism reference in the GPS antenna input As soon as a GPS antenna is connected the indicator will start blinking while it downloads a satellite almanac This behavior is normal and no actions are necessary The LOCKED indicator will stop blinking and...

Страница 75: ... unit is operating with synchronism reference from the GPS antenna input and it is in LOCKED state Layer 16 indicates the synchronism reference was interrupted i e the unit is not on LOCKED state Also the synchronism information in this protocol is updated every 2 minutes after the synchronism reference is interrupted 6 1 7 SNTP Protocol In SNMP protocol a data set is sent containing time referenc...

Страница 76: ...o send the new firmware to the unit 3 After clicking SEND a new window will open requesting username and configuration password as shown in Figure 43 Enter username and password and click LOGIN To cancel the action click on CANCEL Figure 43 Username and password window to update firmware 4 During the transmission the unit will momentarily go out of operation 5 After the change is completed check t...

Страница 77: ...e Web Interface SETUP section typing the unit IP address in a default browser and follow the steps below 1 Enter the new KEY 36 alphanumeric characters in the KEY field 2 Click APPLY to send the new key to the unit 3 After clicking APPLY a new window will open requesting username and configuration password Enter username and password and click LOGIN To cancel the action click CANCEL 4 During the t...

Страница 78: ... get in contact with Alstom s Contact Centre and never attempt to repair the device by his own To request equipment repair service call Alstom to check out shipment options and receive the technical assistance order code The equipment shall be packed in its original package or a suitable package to protect against impacts and moisture Send equipment to address supplied including the sender s ident...

Страница 79: ...pment After the repairs are done follow the procedure below in order to verify the safe state of the equipment and to put it back into operation 1 Reconnect all internal cable that have been removed for the repair 2 Perform a visual inspection on the device to make sure there are no remainders of the repair service inside the casing or any other noncompliance 3 Place back the top side of the case ...

Страница 80: ... 100BASE TX for PTP IEEE 1588 server NTP server and configuration P Ethernet Interface 2 RJ45 copper 100BASE TX for configuration only C RJ45 copper 100BASE TX for NTP server and configuration N RJ45 copper 100BASE TX for PTP IEEE 1588 server NTP server and configuration P PRP redundant RJ45 copper 100BASE TX port same function as interface 1 R Not valid for PTP server Customization Regionalisatio...

Страница 81: ...ale RGC 58 antenna cable 2 40 m 131 ft TNC Male to BNC Male RGC 58 antenna cable 3 75 m 246 ft TNC Male to BNC Male RGC 08 low attenuation antenna cable 4 100 m 328 ft TNC Male to BNC Male RGC 08 low attenuation antenna cable 5 Surge Arrester Without surge arrester 0 10 kA 50 Ohms BNC type connector Surge Arrester for 0 2000 MHz 1 ...

Страница 82: ...ds 2 3 30 ms seconds 4 4 40 ms seconds 8 5 50 ms index bit 0 6 60 ms seconds 10 7 70 ms seconds 20 8 80 ms seconds 40 9 90 ms position identifier 1 10 100 ms minutes 1 minutes 0 59 11 110 ms minutes 2 12 120 ms minutes 4 13 130 ms minutes 8 14 140 ms index bit 0 15 150 ms minutes 10 16 160 ms minutes 20 17 170 ms minutes 40 18 180 ms index bit 0 19 190 ms position identifier 2 20 200 ms hours 1 ho...

Страница 83: ... 29 290 ms position identifier 3 30 300 ms days 1 day of the year 1 365 or 366 31 310 ms days 2 32 320 ms days 4 33 330 ms days 8 34 340 ms index bit 0 35 350 ms days 10 36 360 ms days 20 37 370 ms days 40 38 380 ms days 80 39 390 ms position identifier 4 40 400 ms days 100 41 410 ms days 200 42 420 ms index bit 0 43 430 ms index bit 0 44 440 ms index bit 0 45 450 ms index bit 0 ...

Страница 84: ...0 56 560 ms year 20 57 570 ms year 40 58 580 ms year 80 59 590 ms position identifier 6 60 600 ms index bit 0 61 610 ms index bit 0 62 620 ms Daylight Saving Pending DSP 1 during the minute before beginning or end of DST 63 630 ms Daylight Saving Time DST 1 during DST 64 640 ms Time Offset Sign 0 1 difference between local time and UTC negative for West Greenwich 65 650 ms Time Offset 1 difference...

Страница 85: ...um of the data bits 0 a 74 Bits 75 99 not included in the sum 76 760 ms index bit 0 77 770 ms index bit 0 78 780 ms index bit 0 79 790 ms position identifier 8 80 800 ms time of day 1 seconds of the year 81 810 ms time of day 2 0 86399 or 86400 82 820 ms time of day 4 83 830 ms time of day 8 84 840 ms time of day 16 85 850 ms time of day 32 86 860 ms time of day 64 87 870 ms time of day 128 88 880...

Страница 86: ...30 TM EN 5 92 920 ms time of day 2048 93 930 ms time of day 4096 94 940 ms time of day 8192 95 950 ms time of day 16384 96 960 ms time of day 32768 97 970 ms time of day 65536 98 980 ms index bit 0 99 990 ms position identifier 0 ...

Страница 87: ...col and providing a measurement of the passage of time since a defined epoch Synchronized Clocks According to IEEE1588 standard two clocks are synchronized to a specified uncertainty if they have the same epoch and their measurements of time of a single event at an arbitrary time differ by no more than that uncertainty Master Clock According to IEEE1588 it is a clock that is the source of time to ...

Страница 88: ...k According to IEEE1588 standard it is a clock that provides time information using a single event message Two step Clock According to IEEE1588 standard it is a clock that provides time information using the combination of an event message and subsequent general message Accuracy According to IEEE1588 standard the mean of the time or frequency error between the clock under test and a perfect refere...

Страница 89: ...messages per second Each broadcast begins at time T1 which a Sync multcast message sent by the master to all the clocks in the domain A clock receiving this message takes not of the local time T1 when this message is received The master may subsequently send a multicast Follow Up with accurate timestamp Not all masters have ability to present an accurate timestamp in the Synch message It is only a...

Страница 90: ...ing layer 2 is that the traffic through the network is smaller because the sent packets do not require including IP and UDP address Once the PTP protocol has low traffic when compared to other protocols the network traffic is not limiting factor of the use of layer 3 RT430 uses PTP protocol in its UDP IPv4 layer 3 network layer Clock operation mode PTP protocol requires the master clock sending sy...

Страница 91: ...k applications where the network comprises devices without measurement of delay it is necessary to use the E2E mode which calculates the delay in a general way between the two ends of the network RT430 is capable of measuring the time a synchronism message takes to cross a master slave path using E2E and P2P mechanisms Master Slave e Grandmaster clocks In PTP protocol master clocks send message pa...

Страница 92: ...he BMC algorithm should send Sync messages with synchronism information and in case it is a two step clock it should also send a Follow Up message containing a timestamp The sending interval of the messages is configurable and its standard value specified by IEEE1588 standard is one message per second This interval specifies the frequency the slave devices receive synchronism information allowing ...

Страница 93: ...BLE C 1 ACEB Datagram Synchronism Information Byte Description Possible values 1 Delimiter 0xFF 2 Header 0x01 3 Status 0x00 locked or 0x01 not locked 4 Start of transmission 0x02 5 Day of week BCD 01 Monday BCD 07 Sunday 6 Year BCD 00 99 7 Month BCD 01 12 8 Day of month BCD 01 31 9 Hour BCD 00 23 10 Minute BCD 00 59 11 Second BCD 02 12 End of transmission 0x03 13 Synchro byte 0x16 NEMEA GPZDA Data...

Страница 94: ...ible values Description hh 00 23 hours mm 00 59 minutes ss 00 59 seconds ddd 001 366 julian day DD 01 31 day of the month MM 01 12 month YYYY 2000 2099 year 4 digits TABLE C 3 GPZDA Datagram Line Feed and Carriage Return Information Caractere ASCII ASCII Description decimal hexadecimal LF 10 0A line feed CR 13 0D carriage return ...

Страница 95: ...e excluded Meinberg datagram Meinberg datagram comprises 32 characters sent once per second The datagram information is described below STX D DD MM YY T w U hh mm ss uv__ ETX TABLE C 5 Meinberg Datagram Time Information Parmter Possible values Description Description hh 00 23 hours mm 00 59 minutes ss 00 59 seconds DD 01 31 day of the month MM 01 12 month YY 00 99 year 2 digits w 1 7 day of the we...

Страница 96: ...nning and End Information Caractere ASCII ASCII Description STX 02 02 start of datagram ETX 03 03 end of datagram _ 32 20 espaço Table C 7 Meinberg Datagram Unit s Synchronism Information Paramter Description Commets u status _ se locked if not v status _ se locked if not ...

Страница 97: ...he active antenna supplied by Alstom total attenuation should not exceed 32 dB Total attenuation can be computed by using Where is the attenuation per unit length for the given cable and is the overall cable length The table below shows a few typical cable configurations and the associated total attenuation TABLE D 1 Antenna cables attenuation Cable length Cable RGC58 Cable RGC8 m 50 ft 7 dB m 82 ...

Страница 98: ...e magnitude of 4 ns m 1 2 ns ft of cable length The exact delay can be computed by using Where C m s is the speed of light is a constant which depends on the cable and is the cable length in meters The table below summarizes some typical delays caused by coaxial cables Tabela D 2 Atenuação de cabos de antena Cable length Tipical delay m 50 ft 60 ns m 82 ft 100 ns m 164 ft 200 ns m 246 ft 300 ns m ...

Страница 99: ...h NTP protocol and serial datagrams to synchronize relays and a disturbance recorder are used Also a transceiver optical electrical RT412 Optical Transceiver to transform an electrical output in optics to synchronize a relay and a distributor of signals RT411 Timing Distributor that from an output of the RT430 synchronizes three relays Figure 46 Application Example 1 Synchronism Outputs ...

Страница 100: ...Application Example 2 shown in Figure 47 are employed IRIG B outputs to synchronize some IEDs a disturbance recorder and a signals distributor RT411 Timing Distributor that from an output of the RT430 synchronizes other four equipment Figure 47 Application Example 2 Signal Distribution ...

Страница 101: ...3 shown in Figure 48 and Figure 49 illustrates the serial port connections RS232 and RS485 levels used to synchronize a PLC and two relays respectively Figure 48 Application Example 3 Connecting the Serial Port at Level RS232 Figure 49 Application Example 3 Connecting the Serial Port at Level RS485 ...

Страница 102: ... is complete or correct or will apply to any particular project This will depend on the technical and commercial circumstances It is provided without liability and is subject to change without notice Reproduction use or disclosure to third parties without express written authority is strictly prohibited Alstom Grid Worldwide Contact Centre www alstom com grid contactcentre Tel 44 0 1785 250 070 ww...

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