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Horizon

(0° Elev

ation)

Antenna

Satellite

Elevation

Mask

Mask

Angle

Directly Overhead

(90° Elevation)

Signals from satellites that are obstructed by objects on the horizon such as mountains may provide
inconsistent GNSS coverage due to interference. The mask angle threshold setting provides a method to
filter out these inconsistent signals ensuring the GridTime 3000 only uses stable and accessible satellites.

By default the mask angle is set to 5 degrees, which means that only satellites with an elevation of 5° or more
will be used for time synchronization.

For a different mask angle, type a value into the 'MASK ANGLE' textbox between 0° and 90°.

 

Provisioning

©

 2022 Microchip Technology Inc.

and its subsidiaries

 Manual

DS00004572A-page 148

Содержание GridTime 3000

Страница 1: ...antenna connector on its back panel to utilize a GNSS reference The GridTime 3000 is suitable for use in synchronizing industrial control and supervisory control and data acquisition SCADA equipment...

Страница 2: ...ifications 10 2 6 2 Internal Logging 11 2 6 3 Alarms 11 2 7 Device Management 11 2 8 Security 12 2 8 1 User Security Model 12 3 Physical Overview 14 3 1 Front Panel 14 3 1 1 LCD Tabs 17 3 2 Back Panel...

Страница 3: ...ol CMT 56 8 Simple Network Management Protocol SNMP 57 8 1 GridTime 3000 Management Information Base MIB 57 8 2 Public MIB Support 57 9 Provisioning 58 9 1 Establishing a Connection to the GridTime 30...

Страница 4: ...ntenance 222 11 2 Safety Considerations 222 11 3 ESD Considerations 222 11 4 Troubleshooting 222 11 4 1 Alarm Conditions and Correction Actions 224 11 5 Antenna Installation Troubleshooting 226 11 6 P...

Страница 5: ...chip Website 299 Product Change Notification Service 299 Customer Support 299 Microchip Devices Code Protection Feature 299 Legal Notice 299 Trademarks 300 Quality Management System 301 Worldwide Sale...

Страница 6: ...ration configuration and testing of the GridTime 3000 Maintenance Engineers 11 Maintenance and Troubleshooting and the appendices provide preventive and corrective maintenance guidelines as well as pr...

Страница 7: ...nufacturer tested methods or known functionality Tips contain installation operation or maintenance procedures practices conditions or statements that provide important information for optimum perform...

Страница 8: ...nal redundancy These include Parallel Redundancy Protocol PRP support on all Ethernet ports Dual firmware images the device stores a primary firmware image and a backup image If the primary image cann...

Страница 9: ...day to 250 pulses per second Custom phase offset none through to 1 wave period configurable to the millisecond Custom Duration none through to 1 wave period configurable to the millisecond Output of...

Страница 10: ...etwork Time Protocol SNTP client support SNTP v1 v2 v3 and v4 client support 2 5 IEC 62439 3 2016 Parallel Redundancy Protocol PRP This section describes the functionality of PRP on the GridTime 3000...

Страница 11: ...ice management features the GridTime 3000 GNSS Time Server supports For device configuration and system monitoring the GridTime 3000 hosts its own web browser accessible configuration tool called the...

Страница 12: ...y model USM that is split into users and roles A user is an indidivual log in and represents one person a role is a group in which a user may be placed in Each role has it s own set of admin configure...

Страница 13: ...by the administrator role 9 13 Provisioning Users SNMP users have to be defined by the CMT user and in addition to basic login details username password the authentication and encryption method has to...

Страница 14: ...nel This section describes the functionality on the GridTime 3000 GNSS Time Server s front panel The front panel of the GridTime 3000 features the following LCD Alarm and Sync LEDs LCD navigation butt...

Страница 15: ...e left and right buttons are used to scroll through the LCD tabs If the center button is pressed the LCD will display its main tab If held it will load the clock power screen where the device can be s...

Страница 16: ...ints at the port enabled LED illuminates if the port has been enabled Right LED that points at the port ACT LED Illuminates orange when an active link is established with the port Blinks as traffic pa...

Страница 17: ...K 375 Startup screen 2 GT3K logo text and startup counter Each number maps to a specific boot stage in the firmware Inform Microchip Support if the startup freezes on a particular number GridTime 3000...

Страница 18: ...re button The main display shows the local time and date the current sync status and sync source and the alarm status Alarm Status Tab ALARM STATUS Out of Sync PG 1 Antenna Curr Low PG 2 Holdover No F...

Страница 19: ...n only and will not switch off power to the device or its internal components 3 2 Back Panel This section describes the functionality on the GridTime 3000 GNSS Time Server s back panel Figure 3 2 Grid...

Страница 20: ...t signals1 over copper 3 AM IRIG TTL ports Female BNC Connector Can output 1kHz amplitude modulated IRIG B with a 3 1 ratio Can output standard GridTime Pulse output signals1 over copper 4 IRIG in TTL...

Страница 21: ...nnector Can be connected to a suitable GNSS antenna installation to provide a GNSS reference for the device See 6 7 Installing the GNSS Antenna Outputs 5V 80 mA max to power connected GNSS antenna 10...

Страница 22: ...upport DC 120 Vdc 250 Vdc 590 280 mA AC 100 Vac 240 Vac 700 292 mA 50 60 Hz Only The voltage ranges are also marked on the product label on the chassis Operating the device outside of these ratings ma...

Страница 23: ...4 mm 19 482 mm The case s lid is comprised of two segments the main compartment and the power supply bay The lid s main compartment must never be opened or else it will induce a breach in warranty Onc...

Страница 24: ...CAUTION Take care when handling the sides of the case as the heat sink fins can be uncomfortable to hold Physical Overview 2022 Microchip Technology Inc and its subsidiaries Manual DS00004572A page 24...

Страница 25: ...s communication speed on Ethernet timing ports 9 and 10 Note An additional NTP or PTP license needs to be purchased to use NTP or PTP on ports PTP Enables PTP client and server on all activated Ethern...

Страница 26: ...is also abbreviated and displayed under the alarm icon on the main screen of the device s LCD See Table 2 2 LCD Tab Information If notifications have been configured alarms cause SNMP or Syslog notif...

Страница 27: ...The GridTime 3000 is intended to be installed in the following locations dry indoor locations isolated control rooms with few electromagnetic interference EMI sources far from switchyards Before you b...

Страница 28: ...cable screws to their corresponding connectors Important To avoid interference you must consider the electromagnetic compatibility EMC of nearby equipment when you install the GridTime 3000 Electroma...

Страница 29: ...la Firefox 98 0 1 64 bit If using the USB C Admin port for configuration Cable for forming a direct connection between the GridTime 3000 s USB C port and the USB port on your configuration device For...

Страница 30: ...contact technical support See 11 10 Contacting Technical Support 4 Check each item on the purchase order to confirm the correct items were shipped and received 5 Validate that the product code matches...

Страница 31: ...yellow striped insulated wire from the GridTime 3000 grounding lug to the earth ground on the rack All bare grounding connection points to the GridTime 3000 shall be cleaned and coated with an anti ox...

Страница 32: ...sent the risk of electrocution Ensure all wires are covered CAUTION In case of fire or electric shock cut off power at the circuit breaker 6 5 2 1 Installation Best Practices This section describes th...

Страница 33: ...ool Molex 638191100 Not Applicable Instructions for crimping the low voltage DC connector can be found in the 14 1 Crimping the DC Connector section Instructions for crimping the high voltage AC DC co...

Страница 34: ...L For instructions on how to replace the fuse in a GridTime 3000 product please see the instructions in Replacing a fuse 6 6 Signal Connections This section describes how to make a reliable connection...

Страница 35: ...Link Negotiation Checks DHCP Server Optional By default the admin Ethernet port is configured to use DHCP addressing First connection to the port should therefore be made through a switched network w...

Страница 36: ...e orientation of the connector doesn t matter as USB C connectors are rotationally symmetrical 3 Do the same for the other end of the cable at the end device The GridTime 3000 will appear as a virtual...

Страница 37: ...ons when using the GridTime 3000 to deliver time over Ethernet Take note of all the network hops between the time server port and your end devices Optimize your architecture to reduce network hops thi...

Страница 38: ...SFP and SFP Ports This section describes how to connect to Eth3 Eth10 on the GridTime 3000 The SFP ports support direct attach cables DAC cables optical and copper SFP transceivers and up to 1G transm...

Страница 39: ...r PTP you plan to use For SFP Ports Ensure all relevant network ports support one of the following 10BASE T transmission 100BASE T transmission 1000BASE T transmission For SFP Ports Ensure all relevan...

Страница 40: ...oint at the port ACT LED will flash orange as traffic passes through if the cable s network link has successfully been established Figure 6 11 Cable Connected SFP Port Removing a cable from a SFP port...

Страница 41: ...tion describes how to form a connection to the GridTime 3000 s BNC ports The GridTime 3000 features eight BNC ports Ports 3 10 Each port can output the standard GridTime 3000 pulse output signals DCLS...

Страница 42: ...waves it is the configured fixed frequency 1 544 2 048 or 10MHz for fixed frequency square waves and TTL signals this will be far higher due to the harmonics introduced by the sharp edges 1 MHz 6 6 2...

Страница 43: ...tage term all TTL signals from the ports are 0 5 V and the resistance value of the resistor as the Resistance term AM IRIG When outputting AM IRIG B signals it is recommended that a termination resist...

Страница 44: ...s connector slots Removing a cable from a BNC port If not rack mounted use one hand to hold the GridTime 3000 in place gently twist the cable s BNC connector counterclockwise to release it gently sli...

Страница 45: ...or The DB9 pin mappings when the cable is plugged into the device s RS 422 and RS 232 ports are given in tables RJ 12 to DB9 cable pin mapping when plugged into RS 422 port and RJ 12 to DB9 cable pin...

Страница 46: ...utputs RS232 and RS422 are output only and will not accept a serial string input 6 6 2 5 TX Fiber Ports This section describes how to connect to the GridTime 3000 s TX Fiber ports The GridTime 3000 fe...

Страница 47: ...Length 16 dBm 24 dBm 4 dB km 2 km In this scenario the cable length shouldn t significantly exceed 2 km Ensuring the environmental temperature is always roughly 25 C allows for more cable length A re...

Страница 48: ...with a 2 pin phoenix connector Ensure the cable is rated for the current expected to run through it Tip To meet IEC 61850 3 standards this port should be installed with a shielded cable The shield sho...

Страница 49: ...0 s alarm relay ports The GridTime 3000 includes two alarm relay ports on its back panel consisting of two 3 pin phoenix form C alarm relay contacts Each alarm relay port includes a normally closed NC...

Страница 50: ...circuit C NO open circuit NC C NO NC C NO Cable Recommendations Use a cable terminated with a six pin phoenix connector with locking screws Ensure the cable is rated for expected current from the end...

Страница 51: ...idTime 3000 supports how to reliably install an antenna with the GridTime 3000 how to design your antenna system how to connect your antenna cable The GridTime 3000 features one TNC port which allows...

Страница 52: ...ment choices The Microchip antenna kits have been tested with the GridTime 3000 and are proven to give good GNSS performance The Microchip antenna kits offer a range of cable lengths and protection le...

Страница 53: ...is is properly earth grounded Follow local building electrical codes for grounding the device s chassis DANGER To avoid serious personal injury or death use extreme caution when installing the antenna...

Страница 54: ...ormation A counter will appear on the LCD which shows the progression of the start up sequence Refer to Table 2 2 2 Start Up LCD Tab Information Once the start up sequence has finished the LCD s dashb...

Страница 55: ...e clock power screen appears Refer to Table 2 2 Clock Power Tab Information 2 Once the screen appears press the right hand button when facing the front panel directly to perform a shutdown 3 Wait 20 s...

Страница 56: ...ime 3000 Once a a USB C Admin or Admin Ethernet connection has been established with the GridTime 3000 see 9 1 Establishing a Connection to the GridTime 3000 the CMT can be accessed by entering the IP...

Страница 57: ...can also be used to monitor and configure GridTime 3000 variables Note SNMP is an optional feature for the GridTime 3000 that must be enabled to function See 9 12 Provisioning SNMP Settings for detail...

Страница 58: ...ck Management Tool CMT see the following section 9 2 Logging In and Out This section describes how to log in and out of the GridTime 3000 s Clock Management Tool CMT 1 Open the GridTime 3000 s Clock M...

Страница 59: ...an login using the login window above If successful the CMT dashboard should appear You have now successfully logged into the CMT of your GridTime 3000 3 To log out of the CMT scroll to the bottom of...

Страница 60: ...ime zone offset and daylight savings behavior the holdover entry and exit behavior and the sync source selection behavior 1 Navigate to General Clock Window To navigate to the general clock tab click...

Страница 61: ...ASCII string but only the first five characters will be displayed on the LCD and used in messages Note This step is for configuring the standard timezone offsets only If your region observes daylight...

Страница 62: ...s select OBSERVE DAYLIGHT SAVINGS in the daylight savings menu This will show all additional daylight savings that need to be configured a Setup Daylight Savings Time Zone Using the daylight savings t...

Страница 63: ...TS ON radio buttons and go to step 3 2 1 If your daylight savings time jump begins on a fixed date select FIXED DATE and go to step 3 2 2 i Setup Daylight Savings Start Instance of Weekday When using...

Страница 64: ...DAY the daylight savings jump occurs on and the TIME OF DAY when the jump occurs in hours and minutes from midnight For example if your region s daylight savings began on the 13th of April at 3 00 am...

Страница 65: ...s Instance of Weekday In the DAYLIGHT SAVINGS ENDS ON INSTANCE OF WEEKDAY settings configure the DAY OF WEEK and INSTANCE OF DAY IN MONTH daylight savings time ends and the TIME OF DAY when this occur...

Страница 66: ...when the end of daylight savings occurs and the TIME OF DAY when it occurs in hours and minutes from midnight For example if your region s daylight savings ended on the 18th of December at 3 30 pm yo...

Страница 67: ...nsated crystal Oscillator that is fitted Once the holdover time has expired the GridTime 3000 s time will be considered too inaccurate to be usable and the GridTime 3000 will enter the out of sync sta...

Страница 68: ...hat have a specific out of sync indicator such as PTP clockClass Other devices will be unlikely to synchronize to the GridTime 3000 when it is in this state so if you are setting up holdover timeout o...

Страница 69: ...and IRIG available as sync sources but the IRIG is falsely reporting an artificially high accuracy you may wish to set IGNORE INACCURACY IN SOURCE SELECTION to IGNORE and configure PTP as the higher...

Страница 70: ...CP server won t be available when operating the GridTime 3000 in the future the addressing mode should be changed to static and a static address should be configured but otherwise it should be left as...

Страница 71: ...he Clock Management Tool is unsuccessful 9 4 1 Static IP Address This section describes how to provision the Admin Ethernet Port with a static IP Address 1 Set IP Addressing Mode to Static Select STAT...

Страница 72: ...is set to 255 255 255 0 If your network requires a different netmask modify the static netmask setting as required By combining the netmask and static IP address you have configured you can validate...

Страница 73: ...time the IP address of the port changes you will have to log back into the CMT using the new address as your URL If the new address is out of subnet with your PC s port you will be unable to access th...

Страница 74: ...w number into the DHCP RETRIES textbox the default value is 3 b DHCP Request Interval The DHCP Request Interval sets the base time between DHCP discover attempts in milliseconds The time between DHCP...

Страница 75: ...aved notification will appear in the bottom right corner of the page indicating that the settings have successfully been written to the GridTime 3000 9 4 3 Link Local IP Address This section describes...

Страница 76: ...yping the new name into the NETWORK NAME textbox This field will set the hostname of the port By default the network name will be gt3k admin 3 Save Settings Click the SAVE button to write the settings...

Страница 77: ...le Port Select the ENABLE radio button to enable the port and bring up the relevant port settings 3 Addressing Mode Provisioning 2022 Microchip Technology Inc and its subsidiaries Manual DS00004572A p...

Страница 78: ...t with a static IP Address 1 Select Static for IPv4 Method Select STATIC from the IPV4 METHOD radio buttons causing the static IP addressing settings to appear 2 Set IP Address Enter a different valid...

Страница 79: ...k name will be gt3k time port number 6 PRP and VLANs To provision PRP on the port see 9 5 4 Provisioning PRP To provision VLAN use on the port see 9 5 5 Provisioning VLAN Settings 7 PTP and NTP To pro...

Страница 80: ...ow many DHCP retries the port will make before falling back to a link local IP Address To modify the number of DHCP retries the port will make enter the new number into the DHCP RETRIES textbox the de...

Страница 81: ...lect Link Local for IPv4 Method Select LINK_LOCAL from the IPV4 METHOD radio buttons 2 Network Name If necessary the network name can be modified if by typing the new name into the NETWORK NAME textbo...

Страница 82: ...PRP This section describes how to provision PRP on a GridTime 3000 Ethernet Port 1 Reveal Advanced Settings Click the ADVANCED SETTINGS text to reveal the advanced Ethernet port settings 2 Enable PRP...

Страница 83: ...chnology or by IEC 62439 3 2016 PRP LAN A should be either immediately above PRP LAN B or directly to the left of PRP LAN B Note Once you have selected a port as the PRP LAN B port no configuration is...

Страница 84: ...to the GridTime 3000 A Saved notification will appear in the bottom right corner of the page indicating that the settings have successfully been written to the GridTime 3000 9 5 5 Provisioning VLAN Se...

Страница 85: ...r in the bottom right corner of the page indicating that the settings have successfully been written to the GridTime 3000 9 5 6 Provisioning NTP This port describes how to setup a GridTime 3000 Ethern...

Страница 86: ...are received but will also send NTP multicasts and broadcasts into the network at user defined intervals 9 5 6 1 NTP Client This section describes how to provision an NTP client 1 Select NTP Client fo...

Страница 87: ...e to broadcast messages it receives if DECLINE is selected broadcasts will be ignored 5 Enter NTP Server IP Address Enter the IP address of the NTP server that unicast NTP requests will be sent to 6 A...

Страница 88: ...he GridTime 3000 Click the SAVE button to write the settings to the GridTime 3000 9 5 6 2 Listening Server This section describes how to provision a listening NTP server 1 Select NTP Server for the NT...

Страница 89: ...d notification will appear in the bottom right corner of the page indicating that the settings have successfully been written to the GridTime 3000 9 5 6 3 Broadcast Server This section describes how t...

Страница 90: ...the BROADCAST POLLING INTERVAL timeboxes This setting determines how frequently the port will send broadcast NTP messages into the network The supported interval range is 0 24 hours the default setti...

Страница 91: ...the network The supported interval range is 0 24 hours the default setting is 2 seconds 5 Save Settings Click the SAVE button to write the settings to the GridTime 3000 A Saved notification will appe...

Страница 92: ...upported interval range is 0 24 hours the default setting is 2 seconds 5 Enter Multicast IP Address Enter the IP Address for port to send multicasts NTP messages to If the entered address is within th...

Страница 93: ...w the instructions in one of the following sections for guidance on provisioning each PTP profile 9 5 7 1 Peer to Peer Default Profile 9 5 7 2 End to End Default Profile 9 5 7 3 C37 238 2011 Power Pro...

Страница 94: ...always either be in the server or passive server state depending on whether it has won the Best Master Clock Algorithm BMCA or not In client only mode the port will always be in the client or listenin...

Страница 95: ...during the selection process The priority 1 value is used to manually select which server capable clock will become the grandmaster and will be used in preference over other selection criteria includi...

Страница 96: ...t interval specifies the time interval between successive Peer Delay Request messages being sent to other PTP devices on the network This option only appears when a profile that uses the Peer to Peer...

Страница 97: ...lternative Time Offset TLVs ATOI TLVs in outgoing PTP messages by using the ALTERNATE TIME OFFSET IN OUTGOING setting 15 TLV Settings ATOI and C37 238 Require on incoming By default the ATOI AND C37 2...

Страница 98: ...wn Operating mode is a network wide parameter The configurable options are One Step or Two Step Note Select Two Step operation if the Operating Mode is unknown 4 Delay Mechanism By default the DELAY M...

Страница 99: ...Request interval specifies the time interval between successive Peer Delay Request messages being sent to other PTP devices on the network This option only appears when a profile that uses the Peer t...

Страница 100: ...efined in IEEE 1588v2 2008 13 Configure TLV Settings Alternate Time Offset In Outgoing In the End to End Default and Peer to Peer Default profiles there is the option to either include or exclude Alte...

Страница 101: ...tions are IPv4 layer 4 and PTP over Ethernet layer 2 By default the network protocol is set to IPv4 Note IPv4 is the most common PTP Network Protocol 3 Select Operating Mode Select the operating mode...

Страница 102: ...etry is known entering it manually will allow it to be compensated for and improve time accuracy The input range is 3 2768e 14 ns 2 16 to 3 2768e 14 ns 2 16 5 to 5 seconds 7 Configure Peer Delay Reque...

Страница 103: ...venting the ATOI TLV from being sent on outgoing packets 14 TLV Settings ATOI and C37 238 Require on Incoming By default the ATOI AND C37 238 REQUIRE ON INCOMING setting is set to false 15 TLV Setting...

Страница 104: ...either be in the server or passive server state depending on whether it has won the BMCA In client only mode the port will always be in the client or listening state depending on whether there is a PT...

Страница 105: ...uring the selection process The priority 1 value is used to manually select which server capable clock will become the grandmaster and will be used in preference over other selection criteria includin...

Страница 106: ...ent to other PTP devices on the network This option only appears when the End to End Default Profile is selected This option does not appear when the port is configured as a Forced Client By default t...

Страница 107: ...TOI TLVs in outgoing PTP messages 15 TLV Settings ATOI and C37 238 Require on Incoming By default the ATOI AND C37 238 REQUIRE ON INCOMING setting is set to false 16 TLV Settings C37 238 TLV Outgoing...

Страница 108: ...operation if the Operating Mode is unknown 4 Delay Mechanism By default the DELAY MECHANISM will be set to E2E which will set the delay mechanism to end to end as defined in IEEE 1588v2 2008 5 Configu...

Страница 109: ...this is set to 0 in 2 n seconds or 1 second The supported range is 0 5 in 2 n seconds or 1 32 seconds 8 Configure Announce Interval The ANNOUNCE INTERVAL specifies the time interval between successiv...

Страница 110: ...TOI TLVs in outgoing PTP messages 14 TLV Settings ATOI and C37 238 Require on Incoming By default the ATOI AND C37 238 REQUIRE ON INCOMING setting is set to false 15 TLV Settings C37 238 TLV Outgoing...

Страница 111: ...08 4 Select Operating Mode Select the operating mode for the PTP network from the OPERATING MODE dropdown Operating mode is a network wide parameter The configurable options are One Step or Two Step N...

Страница 112: ...ges being sent to other PTP devices on the network By default this is set to 1 in 2 n seconds or 2 seconds The supported range is 0 4 in 2 n seconds or 1 16 seconds 9 Announce Receipt Timeout By defau...

Страница 113: ...e Descriptions Auto mode allows the port to operate either in the server or client state depending on whether the GridTime 3000 is synchronized or not When the GridTime 3000 is in sync or in holdover...

Страница 114: ...ith each other By default PTP aware devices are configured with a domain of 0 Changing the domain will cause only devices with the specified domain to communicate using the PTP protocol The input rang...

Страница 115: ...terval By default the SYNC INTERVAL is set to 1 second 12 BMCA By default the BMCA operations will be set to BASIC and will operate as defined in IEEE 1588v2 2008 13 Clock Class Rules By default the C...

Страница 116: ...GridTime 3000 A Saved notification will appear in the bottom right corner of the page indicating that the settings have successfully been written to the GridTime 3000 9 5 7 3 2 C37 238 2011 Power Prof...

Страница 117: ...ault the ANNOUNCE INTERVAL is set to 1 second 9 Announce Receipt Timeout By default the ANNOUNCE RECEIPT TIMEOUT is set to 3 This means that after 3 announce intervals if the device has not recieved a...

Страница 118: ...as defined in C37 238 2011 It will set the estimated worst case error in nanoseconds from the Grandmaster The configurable range is 0 default to 2 147 483 647 ns 14 Save Settings Click the SAVE button...

Страница 119: ...ber if required otherwise it is recommended that it is left as its default value of 0 A domain consists of one or more PTP devices communicating with each other By default PTP aware devices are config...

Страница 120: ...has not recieved an announce message it will trigger an announce receipt timeout event which will move the port into a listening state 11 BMCA By default the BMCA operations will be set to BASIC and w...

Страница 121: ...server or passive server state depending on whether it has won the BMCA In client only mode the port will always be in the client or listening state depending on whether there is a PTP server availabl...

Страница 122: ...igure Default Domain Modify the DEFAULT DOMAIN number if required otherwise it is recommended that it is left as its default value of 0 A domain consists of one or more PTP devices communicating with...

Страница 123: ...ng state 11 Sync Interval By default the SYNC INTERVAL is set to 1 second 12 BMCA By default the BMCA operations will be set to BASIC and will operate as defined in IEEE 1588v2 2008 13 Clock Class Rul...

Страница 124: ...he SAVE button to write the settings to the GridTime 3000 A Saved notification will appear in the bottom right corner of the page indicating that the settings have successfully been written to the Gri...

Страница 125: ...locks For both priority fields the input range is 0 to 255 where 0 is the highest priority The default setting is 128 6 Configure Default Domain Modify the DEFAULT DOMAIN number if required otherwise...

Страница 126: ...aster ID and the C37 238 Network Time Inaccuracy GrandMaster ID Set the C37 238 Grandmaster ID setting using the C37 238 GRANDMASTER ID setting This is the GMIdentity or Grandmaster Identity as define...

Страница 127: ...rk from the OPERATING MODE dropdown Operating mode is a network wide parameter The configurable options are One Step or Two Step Note Select Two Step operation if the Operating Mode is unknown 4 Delay...

Страница 128: ...QUEST INTERVAL is set to 1 second 8 Announce Interval By default the ANNOUNCE INTERVAL is set to 1 second 9 Announce Receipt Timeout By default the ANNOUNCE RECEIPT TIMEOUT is set to 3 This means that...

Страница 129: ...e server or passive server state depending on whether it has won the BMCA or not In client only mode the port will always be in the client or listening state depending on whether there is a PTP server...

Страница 130: ...sists of one or more PTP devices communicating with each other By default PTP aware devices are configured with a domain of 0 Changing the domain will cause only devices with the specified domain to c...

Страница 131: ...ass Rules By default the CLOCK CLASS RULES operations will be set to 61850 and will operate as defined in IEC 61850 9 3 14 Configure TLV Settings Alternate Time Offset In Outgoing With the 61850 9 3 P...

Страница 132: ...et the delay mechanism to peer to peer as defined in IEEE 1588v2 2008 5 Configure Priority 1 and Priority 2 Fields Modify the PRIORITY 1 and PRIORITY 2 fields if required otherwise it is recommended t...

Страница 133: ...stening state 10 Sync Interval By default the SYNC INTERVAL is set to 1 second 11 BMCA By default the BMCA operations will be set to BASIC and will operate as defined in IEEE 1588v2 2008 12 Clock Clas...

Страница 134: ...By default the DELAY MECHANISM will be set to P2P which will set the delay mechanism to peer to peer as defined in IEEE 1588v2 2008 5 Configure Default Domain Modify the DEFAULT DOMAIN number if requ...

Страница 135: ...o 1 second 9 Announce Receipt Timeout 10 By default the ANNOUNCE RECEIPT TIMEOUT is set to 3 This means that after 3 announce intervals if the device has not recieved an announce message it will trigg...

Страница 136: ...erver available to sync to 9 5 7 6 1 G 8275 1 Telecom Profile Server Only Mode This section describes how to provision a PTP G 8275 1 Telecom Profile Server Only Mode Clock 1 Select Server Only for PT...

Страница 137: ...to a foreign server Setting this to a lower value will give preference to the local clock over foreign servers The input range is 1 to 255 where 1 is the highest priority The default setting is 128 Th...

Страница 138: ...figure TLV Settings Alternate Time Offset In Outgoing With the ITU T G8275 1 TelecomProfile no TLVs are required on incoming traffic The ATOI TLV can be included in outgoing traffic using the ALTERNAT...

Страница 139: ...MCA comparison of different servers it can see as it can t consider itself as a server candidate Clock Local Priority The CLOCK LOCAL PRIORITY doesn t affect the execution of the BMCA in client only m...

Страница 140: ...a listening state 9 BMCA By default the BMCA operations will be set to G 8275 and will operate as defined in ITU T G 8275 1 10 Clock Class Rules By default the CLOCK CLASS RULES operations will be se...

Страница 141: ...P server available to sync to 9 5 7 7 1 G 8265 1 Telecom Profile Server Only Mode This section describes how to provision a PTP G 8265 1 Telecom Profile Server Only Mode Clock 1 Select Server Only for...

Страница 142: ...rt into a listening state 9 Sync Interval By default the SYNC INTERVAL is set to 1 16 second 10 BMCA By default the BMCA operations will be set to G 8265 and will operate as defined in ITU T G 8265 1...

Страница 143: ...opdown Operating mode is a network wide parameter The configurable options are One Step or Two Step Note Select Two Step operation if the Operating Mode is unknown 4 Delay Mechanism By default the DEL...

Страница 144: ...dless of the Server Networking Option selected 9 Add the PTP Peer Click the blue ADD button as shown A tabbed collection of settings will be as displayed Multiple peers can be added and will be access...

Страница 145: ...1 PTP profile only supports the End to End delay mechanism Select this item from the drop down as shown This is the only option available but the GridTime 3000 Ethernet port will not operate as a G 8...

Страница 146: ...ber of G 8265 1 peers that can be added 17 Save Settings Click the SAVE button to write the settings to the GridTime 3000 A Saved notification will appear in the bottom right corner of the page indica...

Страница 147: ...Configuration Tab 2 Enable GNSS Receiver Select ENABLE for the ENABLE GNSS RECEIVER setting 3 Set Mask Angle The MASK ANGLE threshold setting defines the minimum required elevation angle of GNSS satel...

Страница 148: ...ld setting provides a method to filter out these inconsistent signals ensuring the GridTime 3000 only uses stable and accessible satellites By default the mask angle is set to 5 degrees which means th...

Страница 149: ...three usable satellites are detected the GridTime 3000 cannot synchronize to GNSS regardless of the minimum satellites threshold For a different minimum satellites threshold type a value into the tex...

Страница 150: ...be calculated using the following formula This gives a fairly good approximation of the total antenna installation delay but the delay values of inline amplifiers and lightning arrestors can be includ...

Страница 151: ...satellites to be considered usable for time synchronization by the GridTime 3000 GNSS signals with a low SNR are considered low quality and are less reliably decoded This results in less accurate tim...

Страница 152: ...settings Validate the GNSS settings against the information on the Clock Management Tool CMT dashboard The satellite graph is a bar chart representing the SNR values of all the satellites being used b...

Страница 153: ...going up the middle of the almanac indicates elevation When hovering on the satellite the first number that appears will also indicate the elevation In the below example the satellite is at an elevati...

Страница 154: ...J1 ports 1 Navigate to the T1 E1 J1 Port Configuration Window Navigate to the T1 E1 J1 Port settings tab by clicking on the settings bar corresponding to the port you want to configure 2 Click T1 E1...

Страница 155: ...ype for both ports is only configurable in the port 1 configuration window 2 Enable Port Select ENABLE SIGNAL LOW IMPEDANCE from the HIGH IMPEDANCE OUTPUT radio buttons This will reveal the T1 output...

Страница 156: ...DANCE MATCHING dropdown By default the TRANSMITTER IMPEDANCE MATCHING is set to 110ohm 7 Enable or Disable SSM Bits Enable or disable SSM bits in the output signal using the SSM BITS radio buttons 8 S...

Страница 157: ...e T1 J1 or E1 the signal output type for both ports is only configurable in the port 1 configuration window 2 Enable Port Select ENABLE SIGNAL LOW IMPEDANCE from the HIGH IMPEDANCE OUTPUT radio button...

Страница 158: ...ngs to the GridTime 3000 A Saved notification will appear in the bottom right corner of the page indicating that the settings have successfully been written to the GridTime 3000 9 7 3 Provisioning E1...

Страница 159: ...own By default the WAVEFORM SHAPER is set to 120 ohm External 5 Select Encoding Type Select the applicable encoding type from the ENCODING TYPE dropdown Select the encoding type from the ENCODING TYPE...

Страница 160: ...his section describes how to provision the GridTime 3000 s pulse ports The pulse ports include the BNC ports the ST Fiber ports and the HV MOSFET Port 9 8 1 Provisioning Standard Pulse Outputs This se...

Страница 161: ...s Window Navigate to the window for the port you want to configure by clicking on the port s corresponding icon then clicking the settings bar corresponding to the port 1 Click Here to Bring Up Port C...

Страница 162: ...at using the UTC OR LOCAL TIME radio buttons LOCAL TIME will be selected by default 7 Select Extensions Select what extensions will be included in the control field of the output IRIG B signal C37 118...

Страница 163: ...cond 10 Provision Output Suppression Behavior The OUTPUT SUPPRESSION settings determine under what conditions the output will be suppressed and whether it will be held high or low when suppressed a Ho...

Страница 164: ...aved notification will appear in the bottom right corner of the page indicating that the settings have successfully been written to the GridTime 3000 9 8 1 2 Modified Manchester Modulated IRIG B Outpu...

Страница 165: ...lse Output Select IRIG B Modified Manchester from the PULSE OUTPUT dropdown 4 Select Signal Inversion Select whether the signal will be inverted or normal from the radio buttons below the pulse output...

Страница 166: ...ely supported by end devices and contain useful information such as pending leap seconds and daylight savings jumps 8 Select Even or Odd Parity Select whether the signal will use odd or even parity fr...

Страница 167: ...ified Manchester output will be suppressed in the event of the GridTime 3000 experiencing a holdover timeout The HOLDOVER TIMEOUT SUPPRESSION radio buttons is set to DON T SUPPRESS by default b Max In...

Страница 168: ...ification will appear in the bottom right corner of the page indicating that the settings have successfully been written to the GridTime 3000 9 8 1 3 Simulated DCF77 Receiver Signal Output This sectio...

Страница 169: ...port setting 3 Select Pulse Output Select DCF 77 from the PULSE OUTPUT dropdown 4 Select Signal Inversion Select whether the signal will be inverted or normal from the radio buttons below the pulse ou...

Страница 170: ...Timeout Suppression Choose whether the DCF 77 output will be suppressed in the event of the GridTime 3000 experiencing a holdover timeout The HOLDOVER TIMEOUT SUPPRESSION radio buttons is set to DON...

Страница 171: ...gs to the GridTime 3000 A Saved notification will appear in the bottom right corner of the page indicating that the settings have successfully been written to the GridTime 3000 9 8 1 4 Programmable Pu...

Страница 172: ...ble port setting 3 Select Pulse Output Select Programmable Pulse from the PULSE OUTPUT dropdown 4 Select Signal Inversion Select whether the signal will be inverted or normal from the radio buttons be...

Страница 173: ...e interval length specified in the previous step By default the PULSE FREQUENCY IN INTERNVAL is set to 1 c Set Pulse Offset The PULSE OFFSET IN MILLISECONDS setting determines the phase offset the pul...

Страница 174: ...b Max Inaccuracy Suppression Choose whether the programmable pulse output will be suppressed in the event of the GridTime 3000 hitting its maximum inaccuracy threshold The MAX INACCURACY SUPPRESSION...

Страница 175: ...indicating that the settings have successfully been written to the GridTime 3000 9 8 2 Provisioning G 703 Fixed Frequency Outputs This section describes how to provision a GridTime 3000 Fixed Frequenc...

Страница 176: ...Pulse Output Select Fixed Frequency from the PULSE OUTPUT dropdown 4 Provision Fixed Frequency Settings The fixed frequency settings define whether the output signal will be a sine or square wave and...

Страница 177: ...ignal using the OUTPUT WAVEFORM SHAPE setting radio buttons By default this is set to a sinusoidal wave SINE 5 Provision Output Suppression Behavior The OUTPUT SUPPRESSION settings determine under wha...

Страница 178: ...the event of the GridTime 3000 hitting its maximum inaccuracy threshold The MAX INACCURACY SUPPRESSION radio buttons is set to DON T SUPPRESS by default c Suppress Output Until First Sync Choose whet...

Страница 179: ...en to the GridTime 3000 9 8 3 Provisioning AM IRIG B Outputs This section describes how to provision a GridTime 3000 AM IRIG TTL port to output AM IRIG B Note Only the DCLS AM IRIG B BNC ports Ports 5...

Страница 180: ...al Time format using the UTC OR LOCAL TIME radio buttons LOCAL TIME will be selected by default 6 Select Extensions Select what extensions will be included in the control field of the output IRIG B si...

Страница 181: ...ter By default this is set to ALLOW 60TH SECOND Note Microchip recommends setting this to ALLOW 60TH SECOND unless the end device does not support a 60th second 9 Provision Output Suppression Behavior...

Страница 182: ...s is set to DON T SUPPRESS by default d Suppression Occurs Choose whether the output signal will get locked into a high or low on the Fiber port these will be displayed as illuminated or dark and for...

Страница 183: ...port window you want to configure by clicking on the port s corresponding icon then clicking the settings bar corresponding to the port 1 Click Here to Bring Up Port Configuration Tab 2 Click Here to...

Страница 184: ...Time 3000 s serial string ports 1 Navigate to Serial String Ports Window Navigate to the tab for the port you want to configure by clicking on the serial ports icon then clicking the settings bar corr...

Страница 185: ...BAUD RATE will be set to 9600 allowing a maximum of 9600 bits per second 6 Select the Number of Data Bits Select the number of data bits to be used in the serial string output from the NUMBER OF DATA...

Страница 186: ...active alarms on an Alarm Relay port clear the port transitions from the alarm state to the non alarm state See 11 4 1 Alarm Conditions and Correction Actions for the trigger and clearance conditions...

Страница 187: ...box By default this is set to 0 seconds of delay 4 Map Alarms to Alarm Relay Port Map the alarms to the Alarm Relay port by setting the radio buttons to Enabled next to the alarms you wish to map By d...

Страница 188: ...Provisioning 2022 Microchip Technology Inc and its subsidiaries Manual DS00004572A page 188...

Страница 189: ...Save Settings Click the SAVE button to write the settings to the GridTime 3000 A Saved notification will appear in the bottom right corner of the page indicating that the settings have successfully b...

Страница 190: ...he Administrator role is hidden in CMT as it can t be edited or removed The Administrator role allows full access to all of the GridTime 3000 s settings It is also the only role that can access the CM...

Страница 191: ...ig blue Add button to add a new role this will bring up the role information window on the right hand side 3 Enter New Role Name and Description Type the name and description for the new role into the...

Страница 192: ...corner of the page indicating that the settings have successfully been written to the GridTime 3000 5 Navigate to the Authorization Tab Click on the Authorization icon to bring up the Authorization w...

Страница 193: ...pear in the window each corresponding to a group of settings Each group of settings i e the general clock settings will have its own dropdown showing the role s access permissions for that group of se...

Страница 194: ...he role s access to each group of settings using the dropdown options 8 Save Settings Click the SAVE button to write the settings to the GridTime 3000 Provisioning 2022 Microchip Technology Inc and it...

Страница 195: ...t 1 Navigate to SNMP Config Window Navigate to the SNMP Config window by clicking on the SNMP Config icon then clicking the SNMP Config settings bar 1 Click Here to Bring Up SNMP Configuration Tab 2 C...

Страница 196: ...d on SNMP requests By default this is set to DISABLE meaning SNMPv3 USM privacy is not required 5 Enter Get Community String SNMPv1 SNMPv2c This field is the Public string access key By default this i...

Страница 197: ...00 9 Set up SNMPv3 Users Follow the instructions in 9 12 3 Provisioning SNMP Users if SNMPv3 USM privacy is to be used 9 12 1 Provisioning SNMP Notifications This section describes how to provision SN...

Страница 198: ...s SNMPv3 and the username of a user set up in the SNMP Users window is entered then the user authentication settings will be applied See 9 12 3 Provisioning SNMP Users If SNMPv3 is being used and the...

Страница 199: ...gs Click the SAVE button to write the settings to the GridTime 3000 A Saved notification will appear in the bottom right corner of the page indicating that the settings have successfully been written...

Страница 200: ...DD button under the SYSLOG SUBSCRIPTIONS heading to add a new Syslog subscription This will make the settings for the new subscription appear 3 Enter Subscriber s Destination IP Address Enter the IP a...

Страница 201: ...as are present on the network Tip Click the red bin icon to remove a Syslog subscription 6 Save Settings Click the SAVE button to write the settings to the GridTime 3000 A Saved notification will app...

Страница 202: ...on the SNMP tab to bring up the SNMP Users window 2 Add User Click the big blue ADD button to add a new SNMP user Provisioning 2022 Microchip Technology Inc and its subsidiaries Manual DS00004572A pag...

Страница 203: ...the new user 4 Enter Password Enter the SNMPv3 USM password for the new user 5 Select Role Select the mapped user role from the ROLE dropdown Read the 9 11 Provisioning Roles section before proceedin...

Страница 204: ...llows the Administrator role to have read and write access to all settings and advanced configuration menus Follow the instructions in 9 11 Provisioning Roles to set up additional roles By default it...

Страница 205: ...tication module 2 Enter the Administrator user login details and click LOGIN If the login was successful the users tab of the authentication module should load up Provisioning 2022 Microchip Technolog...

Страница 206: ...ould make the user settings window appear on the right hand side of the screen 4 Enter Name Type the Name of the user into the NAME textbox Note This is not the username used by the user during login...

Страница 207: ...FAILED ATTEMPTS and LOCK OUT UNTIL settings are available in the Clock Management Tool but will not have any affect on the configured user 8 Save Settings Click the SAVE button to write the user sett...

Страница 208: ...teps 1 2 and 3 and click the big red DELETE button Note The login username password and other details for the default Administrator user can be changed but the user cannot be deleted Provisioning 2022...

Страница 209: ...been set up Viewing the alarms section of the CMT dashboard for a list of active alarms Viewing the LCD alarms tab ALARM STATUS Out of Sync PG 1 Antenna Curr Low PG 2 Holdover No First Sync Switch Pa...

Страница 210: ...ync alarms are active if none are active the unit is in sync 10 2 Test Mode This section describes how to set the GridTime3000 into test mode and how to change the time to one selected by the user The...

Страница 211: ...ally disabled when then the GridTime 3000 is power cycled 4 To change the test mode time first set the FORCE TIME TO CONFIGURED SETTINGS option to FORCE TIME Then enter the desired date local time and...

Страница 212: ...administrator user can change their password on the GridTime 3000 1 Log in to the CMT dashboard see 9 2 Logging In and Out 2 Click the Change Password icon 3 Enter the current user s password into th...

Страница 213: ...idTime 3000 s user passwords 1 To modify a password for a GridTime 3000 user navigate to the CMT authentication module by adding 444 to the end of the IP address you would normally use to access the C...

Страница 214: ...ule should load up 3 To modify the login settings for a particular user click on a user s name and the user settings tab should appear Click device to show all user login settings Operating 2022 Micro...

Страница 215: ...Firmware This section describes how to upgrade the GridTime 3000 s firmware Note Only an administrator user can upgrade the GridTime 3000 s firmware 1 Load up the CMT dashboard see 9 2 Logging In and...

Страница 216: ...con to bring up the firmware window 4 Click the blue CHOOSE FILE button to open a file explorer for selecting the new firmware image Operating 2022 Microchip Technology Inc and its subsidiaries Manual...

Страница 217: ...d click Open 6 An UPLOAD Firmware Image button should appear Click this button to upload the new firmware image to the device A percentage will be shown tracking the upload of the image to the device...

Страница 218: ...u have logged out and back in If the firmware version remains the same this may indicate a potential upgrade failiure If the upgrade failure persists Microchip Support should be contacted See Contacti...

Страница 219: ...ick the blue Download logs button to download the GridTime 3000 s log files 5 Extract the log files from the compressed gz file using 7zip or other file decompressor Operating 2022 Microchip Technolog...

Страница 220: ...le new licensed features Note Only an administrator user can add new licenses 1 Log in to the CMT dashboard see 9 2 Logging In and Out 2 Click the Settings icon 3 Click the License icon to bring up th...

Страница 221: ...trl A Ctrl C then clicking into the LICENSE DETAILS textbox and pressing Ctrl V 6 Scroll down to the bottom of the license window in the CMT and click the SAVE button to store the license to the devic...

Страница 222: ...dirt or foreign material Clean the exterior of chassis with a soft dry cloth Periodically Once a year Cables Inspect for pinched worn or damaged cable s Replace pinched worn or damaged cable at the f...

Страница 223: ...ime 3000 Server and client s If ACT LED for port is ON Incorrect virutal LAN VLAN configuration Verify that VLAN configuration is enabled correct in the VLAN tab of the Ethernet Timing Ports window in...

Страница 224: ...toring Table 11 3 Alarm Trigger and Clearance Conditions Table Alarm Name Trigger Condition Clearance Condition Recommended Corrective Action No Fix Device lacks reception of enough usable1GNSS satell...

Страница 225: ...sources are available wait a few minutes to allow the device to gain synchronization No IRIG In IRIG B input signal previously sensed on at least one active IRIG In port is no longer being sensed IRI...

Страница 226: ...support 11 10 Contacting Technical Support 11 5 Antenna Installation Troubleshooting This section describes how to troubleshoot issues with the GridTime 3000 s antenna installation To troubleshoot an...

Страница 227: ...y fuse s will be located in the power supply s fuse holder as per the image below 4 The faulty fuse should be carefully removed from its holder as shown below Maintenance and Troubleshooting 2022 Micr...

Страница 228: ...compartment and reinsert the screws 8 Verify that the fuse replacement was successful by powering the GridTime 3000 through the applicable power supply only and verify that it has started by checking...

Страница 229: ...e operation 2 Flip the GridTime 3000 upside down and remove the power supply screws as shown in the image below 3 Once the screws have been removed for the relevant power supply s flip the GridTime 30...

Страница 230: ...If cables are damaged before or during the replacement of the power supplies do not connect power and contact Microchip technical support 11 10 Contacting Technical Support Note Ensure the internal c...

Страница 231: ...inuity If the fuse has a resistance of open circuit it is faulty and a different fuse should be used if it has a low resistance 1 ohm it is suitable 12 Carefully place the new fuse into the power supp...

Страница 232: ...this manual is updated the updated version will be available for downloading from Microchip s web site Manuals are provided in PDF format for ease of use After downloading you can view the manual on...

Страница 233: ...8961 533 email sjo ftd support microchip com OR nzp support microchip com ftd emea_sales microsemi com Australia and New Zealand Tekron International Ltd Level 1 47 The Esplanade Lower Hutt 5022 New...

Страница 234: ...gle GNSS 2 x LV PSU C O SG LV 1 x GridTime 3000 OCXO Single GNSS 1 x LV PSU C R SG HV 1 x GridTime 3000 Rubidium Single GNSS 1 x HV PSU C R SG HV HV 1 x GridTime 3000 Rubidium Single GNSS 2 x HV PSU C...

Страница 235: ...se 12 3 Power Supply and Electrical Protection This section describes the electrical specifications of the GridTime 3000 s power supplies Table 12 1 Power Supply Electrical Specifications Power Supply...

Страница 236: ...D for sync state Navigation Buttons Screen navigation and safe shutdown of unit Left Right buttons to scroll LCD screen Centre button for safe shutdown reboot Ethernet Administration Port GridTime 300...

Страница 237: ...TP Disabled by default PTP Disabled by default Eth 10 DHCP enabled NTP Disabled by default PTP Disabled by default RJ 48 T1 E1 J1 Port 1 Disabled by default Port 2 BNC Freq DCLS IRIG B Port 3 Disabled...

Страница 238: ...4 V 110mA 1 5kV E1 at 75 RJ 48 2 37 V 110mA 1 5kV J1 at 75 RJ 48 2 4 V 110mA 1 5kV 1 544 MHz square wave at 75 BNC 1 3 V 17mA 2 5kV 1 544 MHz sinusoidal wave at 75 BNC 1 3 V 17mA 2 5kV 2 048 MHz squa...

Страница 239: ...and RS232 Port Specifications Port Connector Voltage Current Rating Isolation RS422 Port RJ 12 5 V 35 mA 2 5 kV RS232 Port RJ 12 3 V 15 V 10 mA 2 5 kV The content specifications for each time string...

Страница 240: ...Day of year range 001 366 ASCII HEX 3A colon hh Hour 00 23 ASCII mm Minute 00 59 ASCII ss Second 00 59 ASCII CR Carriage return HEX 0D LF Line feed HEX 0A Example SOH 112 12 34 36 CR LF Day 112 time...

Страница 241: ...cator byte for the year field but otherwise is identical in form function and timing to String A Transmitted once every second The leading edge of the start bit of the first character SOH is exactly o...

Страница 242: ...both year information and a sync indicator field Transmitted once every second The leading edge of the start bit of the first character CR is exactly on the second to which the message data refers De...

Страница 243: ...CR Transmitted once every second The leading edge of the start bit of the character CR is exactly on the second to which the message data refers Default settings 9600bps 8 bit ASCII no parity Definit...

Страница 244: ...the time year information and a sync indicator field The string is transmitted once every second with the leading edge of the start bit of the first character SOH exactly on the second to which the me...

Страница 245: ...complies with the protocol required to drive Vorne type Time Displays The string is transmitted once every second with the leading edge of the start bit of the last BEL character exactly on the second...

Страница 246: ...4 56 UTC day 111 String G Time Code This general time string is used predominantly in Europe The string is transmitted once every second with the leading edge of the start bit of the last ETX exactly...

Страница 247: ...1 1 x x Clock is synced high accuracy w The Day of Week is an ASCII character in the range 0 9 A F representing a single hex digit To interpret the value the Hex digit should be converted to a Nibble...

Страница 248: ...ar 10 99 ASCII HEX 3B semicolon T ASCII T w Day of week 1 7 1 Monday ASCII U ASCII U hh Hour 00 23 ASCII mm Minute 00 59 ASCII ss Second 00 59 ASCII u ASCII hash if not synchronized since last reset o...

Страница 249: ...positive means local time leads UTC xx Local time zone offset from UTC in hours YY Local time zone offset from UTC in minutes ASCII asterisk CC 2 digit hex representation of the result of XORing the...

Страница 250: ...e result of XORing the 8 data bits of each character between but not including the and 00 FF CR Carriage return HEX 0D LF Line feed HEX 0A Example GPRMC 123456 00 A 1234 5678 S 12345 6789 E 0 0 0 0 23...

Страница 251: ...tion Reacquisition 2 s Hot Start 2 s Cold Start 30 s Sensitivity Tracking 167 dBm Re acquisition 160 dBm Hot start 157 dBm Cold start 148 dBm Antenna supply voltage 5 V Antenna supply current Typical...

Страница 252: ...www gnu org licenses www opensource org licenses BSD 3 Clause www opensource org licenses BSD 2 Clause www opensource org licenses MIT www spdx org licenses bzip2 1 0 6 html spdx org licenses ICU html...

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Страница 287: ...LICENSE GPLv2 LGPLv2 BSD MIT PACKAGE NAME libelf PACKAGE VERSION 0 176 RECIPE NAME elfutils LICENSE GPLv2 LGPLv3 PACKAGE NAME libext2fs PACKAGE VERSION 1 44 5 RECIPE NAME e2fsprogs LICENSE GPLv2 LGPL...

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Страница 296: ...mplete the process by applying pressure to the tool and closing the crimp 8 Remove the completed crimp and test it is securely fastened You should be able to hold the end of the crimped terminal and t...

Страница 297: ...g the two screws Figure 14 3 Wire clamp added to hold wires in place 7 Add rubber strain relief Figure 14 4 Rubber strain relief 8 Clip the second half of the housing in place and fasten the screw Fig...

Страница 298: ...15 Revision History Revision Level Date Description A 7 2022 Initial version Revision History 2022 Microchip Technology Inc and its subsidiaries Manual DS00004572A page 298...

Страница 299: ...heir distributor representative or ESE for support Local sales offices are also available to help customers A listing of sales offices and locations is included in this document Technical support is a...

Страница 300: ...TimeSource tinyAVR UNI O Vectron and XMEGA are registered trademarks of Microchip Technology Incorporated in the U S A and other countries AgileSwitch APT ClockWorks The Embedded Control Solutions Co...

Страница 301: ...ity Management System For information regarding Microchip s Quality Management Systems please visit www microchip com quality 2022 Microchip Technology Inc and its subsidiaries Manual DS00004572A page...

Страница 302: ...amen Tel 86 592 2388138 China Zhuhai Tel 86 756 3210040 India Bangalore Tel 91 80 3090 4444 India New Delhi Tel 91 11 4160 8631 India Pune Tel 91 20 4121 0141 Japan Osaka Tel 81 6 6152 7160 Japan Toky...

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