Huahuan Electronics HX.PTP-GM02 User Manual Download Page 44

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Beijing Huahuan Electronics Co., Ltd

8.2.

Protocols

Item

Description

PTP Profile

IEEE 1588-2008 default

IEEE 802.1AS

ITU-T G.8265.1

ITU-T G.8275.1 V2

ITU-T G.8275.2

IEEE C37.238-2011

C37.238

NTP

RFC 5905, stratum-1

1PPS+ToD

ITU-T G.8271

SyncE

ITU-T G.8262

ITU-T G.8264

8.3.

Ethernet Electrical Interface

Item

Description

Standards

IEEE 802.3

Speed

10/100/1000M

Mode

Auto, or forced 10/100/1000M full duplex,

10M/100M half-duplex

Connector

RJ45

8.4.

Ethernet Optical Interface

Item

Description

Speed

100/1000M

Optical interface technical

parameters

Determined by SFP optical module

Mode

Auto, or forced 100/1000M full duplex

34 HX.PTP-GM02 IEEE-1588 Grandmaster Clock V1.0

Summary of Contents for HX.PTP-GM02

Page 1: ...HX PTP GM02 Suction window mount GNSS based Indoor PTP Grandmaster...

Page 2: ...HX PTP GM02 Suction window mount GNSS based Indoor PTP Grandmaster User s Manual Beijing Huahuan Electronics Co Ltd Version 1 0 Sept 2018...

Page 3: ...uct specifications and information is subject to change without notice For information related please consult Beijing Huahuan Copyright Beijing Huahuan Electronics Co Ltd 2013 All rights reserved Mode...

Page 4: ...ToD Scenario 6 2 3 GeckoSynco as NTP Server 7 3 ARCHITECTURE AND INSTRUCTIONS 8 3 1 Structure 8 3 1 1 System LED 9 3 1 2 Electrical ETH Port 10 3 1 3 Optical Port 12 3 1 4 1PPS TOD Port 13 3 1 5 The...

Page 5: ...ng the Optical Fiber 21 4 2 4 Connecting the 1PPS ToD Cable 21 4 3 Setting Operating Parameters 22 5 DEVICE MANAGEMENT 22 6 SOFTWARE USAGE 23 6 1 Web Server Interface 23 6 1 1 Web Server Login 23 6 1...

Page 6: ...y Cycle 31 6 2 6 Setting 1PPS Delay 32 6 2 7 Restore Factory Settings 32 7 TROUBLE SHOOTING 32 8 SPECIFICATIONS 33 8 1 Satellite 33 8 2 Protocols 34 8 3 Ethernet Electrical Interface 34 8 4 Ethernet O...

Page 7: ...n numbering order 13 Figure 3 5 Front and rear panel of the PoE adaptor 15 Figure 4 1 Sky view clearance 19 Figure 4 2 Installation schematic 20 Figure 6 1 Change username password 23 Figure 6 2 Syste...

Page 8: ......

Page 9: ...formation 2 Table 3 1 Color code of the SYS LED 9 Table 3 2 Color code of the L A and LOS LEDs 10 Table 3 3 RJ 45 pin definition 10 Table 3 4 1PPS ToD port pin definition 13 Table 3 5 Dip switch funct...

Page 10: ......

Page 11: ...randmaster GM in a PTP domain Multiple PTP profile choices are built in useful for applications in telecommunications electrical systems and other scenarios where precision timing is needed Apart from...

Page 12: ...ased on GPS They may differ when other GNSS system is used 1 2 Ordering Information HX PTP GM02 ordering information is given in Table 1 1 Table 1 1 HX PTP GM02 ordering information Model Description...

Page 13: ...s to be dealt with to achieve sub s synchronization IEEE 1588 precision timing protocol was specifically designed for high precision synchronization over packet based networks especially Ethernet netw...

Page 14: ...by the carrier part of the transport could be carried by the public internet It is simply not practical to upgrade the entire internet to support PTP Problem No 2 even if all the nodes support PTP th...

Page 15: ...ucked onto the inside of a window with resonable sky view Unlike most GPS clocks GeckoSynco do not require an outdore satellite antenna thus avoids the need for site selection mast installation and fi...

Page 16: ...act as GM in the domain In such applications the GeckoSynco does not run PTP protocol but output 1PPS ToD signal to those nodes Let s again take the example of the enterprise smallcell network depicte...

Page 17: ...The GeckoSynco can actually measure the delay during installation by putting a loopback socket at the other end of the cable without carefully measuring the cable length 2 3 GeckoSynco as NTP Server M...

Page 18: ...up Figure 3 1 HX PTP GM02 diagram On the front surface a 3 color LED is used to indicate the operational status of the device as described in Table 3 1 Four suction cups are screwed into the corners o...

Page 19: ...1 System LED The SYS LED on the front face is used to indicate the operational status of the GeckoSynco device as described in the following table Table 3 1 Color code of the SYS LED LED Color Code D...

Page 20: ...marked ETH on the bottom panel of the HX PTP GM02 is the 10 100 1000M Base T Ethernet port It is used for PTP protocol packets management as well as power input for the device 1 10 100 1000 Base T Por...

Page 21: ...from any set of pairs shown inTable 3 2 If the link partner such as an Ethernet switch is a PoE power sourcing equipment PSE power will be provided by that PSE through the Ethernet cable connecting th...

Page 22: ...duplex mode A hot swapable SFP optical module is required to use the optical Ethernet When using single fiber transceiver module there is only one optical fiber port The wavelength of a single fiber...

Page 23: ...s table should be referenced when making the 1PPS ToD cable Both 1PPS and ToD are differential signals that should be carried by twisted pair cables with 0 4mm 0 5mm diameter conductors such as in a C...

Page 24: ...M02 gets its power from the connected Ethernet cable Power dissipation is about 5 watts and PoE voltage range is DC 36V 57V An optional Class 2 PoE adaptor is available which converts wall voltage of...

Page 25: ...of sight the more accurate these 4 variables can be calculated That s why installation of the receiver antenna prefers as much sky view clearance as possible Most systems require outdoor antenna on to...

Page 26: ...information from the GNSS while re powering of a previously locked stationary device locks much faster since most of the necessary data are kept in the non volatile memory during the previous operatio...

Page 27: ...E 1588V2 standard More than one GM may be used in a domain and PTP best master protocol will select the best one among them to be the reference clock for the domain Each GeckoSynco will announce its c...

Page 28: ...ed to be installed by suction onto a window inside a building Find an appropriate location is the first step for successful operation Following list should be observed Good sky view for line of sight...

Page 29: ...an be put to Fixed mode a compromised sky view clearance may not be a serious limitation But if the 3D coordinates need to be calculated by the GeckoSynco itself the clearance should be the top priori...

Page 30: ...ockets they should be secured as close as possible to the device to avoid reliability problems GeckoSynco 1PPS ToD Ethernet To PTP Domain Ethernet PoE Power PoE Adaptor Cable Fix AC Power Cord Optical...

Page 31: ...2 Respectively remove the dust caps on the optical module and the optical fiber aim the head of the fiber at the optical module port and insert it into the port with moderate force Note When using dua...

Page 32: ...anage the device a valid unique local IP must be allocated to it first The factory default IP address is 192 168 1 2 which can be used to access the device to set its permanent IP address Use a laptop...

Page 33: ...the login page click Login button to start management The initial username and password are both admin which should be changed by the end user as soon as possible using the following web page Figure...

Page 34: ...Huahuan should be uploaded using FTP to the target device under the home directory Both username and password for FTP are defaulted to root The files for each package are FPGA package GM02_H r and GM...

Page 35: ...ariables of 3D coordinates and time according to received satellite signals Due to variations in environmental conditions and thermosphere and multi path reflections that change with the relative posi...

Page 36: ...can obtain the preciseNote3 longitude latitude and elevation from sea level for the installation position of the GeckoSynco then directly set Time Mode in Figure 6 4 to Fixed and input the coordinate...

Page 37: ...ers and is ready to go into Fixed mode This process takes 1 3 days and the longer period you wait the more accurate they get When the coordinate values are green click Use Mean to move the coordinates...

Page 38: ...tellite system is achieved yet 3D Fix locked to the satellite system in 3D search time mode Fixed locked to the satellite system in Fixed time mode SV stands for Space Vehicle i e satellite Num SV can...

Page 39: ...ch profile defined by a specific industry standard will specify or restrict some of the parameters When a particular profile is selected parameters not allowed to be modified will become gray in the i...

Page 40: ...able delay enter the number in the box to make the signal pulse edge come out of the port earlier by the specified amount Note that the compensation is made in 5ns steps the entered number will be aut...

Page 41: ...o access the shell login with correct username and password that are both defaulted to admin The prompt will change to CLI 6 2 2 Version Check CLI show ver FPGA Version 1 0 0 3 Kernel Version 1 0 0 0...

Page 42: ...tem to reboot after all values reset to the factory defaults 7 7 T Tr ro ou ub bl le e S Sh ho oo ot ti in ng g Table 7 1 Common faults and solutions Faults Possible Cause Solution SYS LED Off Etherne...

Page 43: ...ection failure Check the link partner Ethernet cable broken Change cable If failure persists contact Huahuan for technical support 8 8 S Sp pe ec ci if fi ic ca at ti io on ns s 8 1 Satellite Item Des...

Page 44: ...1 SyncE ITU T G 8262 ITU T G 8264 8 3 Ethernet Electrical Interface Item Description Standards IEEE 802 3 Speed 10 100 1000M Mode Auto or forced 10 100 1000M full duplex 10M 100M half duplex Connector...

Page 45: ...pin RJ12 8 6 Management Item Description Web Most of web browsers Command line CLI SNMP V2 V3 8 7 Physical Electrical Environment Item Description Size 120mm x 145mm x 38mm W H D Weight 350g Power sup...

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