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ND-CLK User Manual- Rev 1.0.1 - Sep-08

18

Symmetricom

®

, Inc

Network Time Protocol [NTP] Parameters

–

Allows for setting the NTP mode and parameters of the SNTP

client in the network clock. These settings are located in the upper left hand section of the device settings

window

The Primary Source information must be configured in order to acquire time from an NTP source.

Enter either the IP address or Internet address (URL) for the NTP source. If available, enter a

Secondary Source for backup.

The primary and secondary server information can automatically be configured by the DHCP server

when selecting the “Use NTP server(s) address provided by DHCP server” provided your DHCP

server is configured to do so. Consult your IT /Network Administrator to utilize this option.

The default, well-known port for NTP service is 123. This can be changed as desired (using the Telnet

application).

[Note: some NTP/SNTP servers will expect NTP clients to operate on port 123 and cannot be configured to

utilize alternate ports.]

Query NTP server for time (Unicast Mode for NTP) - By default, the NTP clock will operate only

in Unicast /Query mode using server port 123.

This mode is selected exclusively when neither the listen for NTP broadcast nor the

listen for NTP multicast modes are selected.

Listen for NTP broadcasts

–.

The network clock can configured to listen to NTP broadcasts by

selecting the “Listen for NTP via broadcast address [255,255,255,255]” checkbox.

The Broadcast/Multicast timeout period (in minutes) is adjustable when this mode is selected.

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Содержание ND-CLK

Страница 1: ...ND CLK NETWORK TIME PROTOCOL ANALOG CLOCK Series II USER MANUAL Symmetricom Inc Tel 707 528 1230 Santa Rosa CA 95403 Sep 08 Printed in USA ...

Страница 2: ... regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose SYMMETRICOM shall not be liable for errors contained here in or for incidental or consequential damages in connection with the furnishing performance or use of this material See important limited warranty at the end of this document ...

Страница 3: ...Default Configuration 12 Default Password 12 Configuration Methods 12 WinDiscovery 13 Telnet Terminal Configuration 29 Troubleshooting Tips 34 Specifications 40 Communications Protocol 40 Communications I O 40 Power Requirements AC Model 40 Power Requirements POE Model 40 Internal Battery Circuit 40 Physical 40 Operating Storage Temperature Humidity 40 Compliance 41 Limited Warranty 42 Limitation ...

Страница 4: ...rate NTP Network Time Protocol time server The ND CLK can be configured to display local time for any time zone worldwide by enabling time zone offset and automatic DST Daylight Saving Time adjustments This device allows for maintenance free reliable quiet operation The ND series II consists of the following ND CLK analog clock members DisplayType ND CLK Face Power Options Part numbers Analog Cloc...

Страница 5: ...ew clock display through WinDiscovery application Hand position calibration is preset at factory and retained in non volatile flash memory requiring no hand positioning Rechargeable maintenance free battery retains configuration settings and time for minimum of two weeks of power loss Second Hand Self correcting after loss of power and or NTP reference Rapid hand correction using fast mode Status ...

Страница 6: ...network __ Determine if DHCP server will provide NTP server configuration __ Determine if DHCP server will provide time zone configuration NTP Addressing Mode __ Determine if the clock client will query the NTP server unicast mode listen for NTP broadcast messages broadcast mode or listen to NTP as part of a multicast group multicast mode All network clocks can be provided with a verbose name The ...

Страница 7: ...he spare wires of a standard network cable with RJ45 connector for input power The POE source must be a fully compliant IEEE 802 3af PSE operating at 48VDC POE sources not IEEE 802 3af compliant might damage the clock and void the warranty o Insert the standard Cat 5 or Cat 6 network cable into the RJ45 connector on the rear of the unit o Insert the AC power cord into the IEC power connector on th...

Страница 8: ...ce is located or if the signal has been lost o When correcting for time the red status LED will flash once per second o Once the clock has synchronized to the valid time server and adjusted its displayed time the red status LED will be OFF This represents normal operation with synchronized time Note when configured to obtain network configuration through DHCP the display may hesitate on startup wh...

Страница 9: ... is supplied which has been designed to fit on either a standard 2 x 4 or 4 x 4 conduit box Mount the bracket on the wall conduit box and attach the power signal cables secure the clock to the bracket using the retaining screw Caution Do not route power or signal cables between the case and the wall along the exterior of the wall which may pinch the power or signal cable and create a hazardous con...

Страница 10: ...iod the hands will move rapidly in either a clockwise or counter clockwise motion and the red status LED will blink flash once per second This is normal operation for the clock during the correction cycle Status LED The red LED on the ND CLK clock face at the 6 00 o clock position will indicate its status LED STATE STATUS INDICATION OFF The clock has completed synchronizing to the NTP reference Ti...

Страница 11: ...dresses as primary and secondary NTP servers Important Note A network clock will not function properly if configured to use DHCP services when no DHCP server is present on the network Device Name DHCP Name Registration All ND network clocks can be provided with a device name By default device names are the product name abbreviation followed by the last octet of the device s Ethernet address MAC ad...

Страница 12: ...et Network time displays provide flexible configuration options supporting most world daylight time standards Daylight time standards vary widely throughout the world Traditional daylight summer time is configured as one 1 hour positive bias The new US Canada DST standard adopted in the spring of 2007 is one 1 hour positive bias starting at 2 00am on the second Sunday in March and ending at 2 00am...

Страница 13: ...s a recently added feature As opposed to broadcast mode which is a widespread or open ended broadcast of NTP packets whereby data is sent to every possible receiver client multicasting is useful because it conserves bandwidth It does this by replicating packets only as needed within the network to send them only to receivers clients that want them thereby not transmitting unnecessary packets The c...

Страница 14: ...ented properly Please ensure that your network system components are capable of and configured properly for IGMP before utilizing the multicast addressing feature Consult you IT network administrator for assistance in utilizing the multicast addressing feature Note You will need to check with your firewall vendor to determine how to enable multicast traffic through a firewall In addition you may w...

Страница 15: ... situations such as a lost password it may be necessary to return the network clock to its factory default configuration A reset configuration button labeled RESET is located on the electronics cover on the rear of the network clock chassis to perform this function To reset configuration to factory default 1 Depress and hold the reset configuration button on the rear of the clock 2 Remove power fr...

Страница 16: ...ty will suggest installing files to C Program Files Symmetricom WinDiscovery Another path may be selected if desired Using WinDiscovery Open the WinDiscovery application by clicking the shortcut on your desktop or other fashion dictated by your installation Click the Discover button on the lower left of the screen Note It is highly recommended that only one user should be utilizing WinDiscovery at...

Страница 17: ... appear in the right window ready to be managed To configure and manage a device shown in the right window double click or right click the device name and a menu appears The choices are Properties Network Settings Device Settings Set Password Set Time Date Status Reset Device Clicking a menu choice opens a new window for that function When working in the management windows use the Apply and OK but...

Страница 18: ... these functions Your network administrator determines the information for the Network Settings Note The default factory setting for network configuration is to use DHCP BOOTP Note If a DHCP server cannot be found on the network by the NTP clock the IP address will be assigned a fallback IP address of 169 254 xxx xxx To utilize static IP addressing de select the checkbox for Automatically obtain n...

Страница 19: ...link local address range i e not allowed on the internet and is used by Microsoft when their DHCP clients cannot find a DHCP server To determine the cause of why the clock fell back to a 169 254 xxx xxx address the user should display the status of the clock Please see the Status section for details as to how to determine the cause of the fallback IP address Note Devices which have been assigned a...

Страница 20: ...ings window will display the title NTP Clock Configuration in the title bar of the window Any changes made in this window will not be applied until you click the OK button to exit the window or the Apply button to immediately see the changes The top right section of the Window shows a snapshot of the network clock display constantly updated This update is not precise but is meant to give you a vie...

Страница 21: ...your DHCP server is configured to do so Consult your IT Network Administrator to utilize this option The default well known port for NTP service is 123 This can be changed as desired using the Telnet application Note some NTP SNTP servers will expect NTP clients to operate on port 123 and cannot be configured to utilize alternate ports Query NTP server for time Unicast Mode for NTP By default the ...

Страница 22: ...g multicast addressing by selecting the Listen for NTP via multicast address es checkbox When enabled the multicast class D group address may be specified as well as the frequency that multicast broadcasts will be issued This can be changed as desired The network clock can listen for NTP multicast broadcasts using the full class D group address range The network clock does not restrict the use of ...

Страница 23: ... default configuration is to query the NTP server at 10 minute intervals To configure the network clock device to only listen to NTP broadcasts click the checkbox for Listen for NTP broadcasts only and enter a Broadcast timeout in minutes The default timeout is 60 minutes Display Control The lower half of the window configures the face of the network clock Options in this configuration region may ...

Страница 24: ... Time if appropriate You may use either of the following options are available for setting the DST rules manually enter the daylight saving time rules select the convenient preset DST rules for US Canada Standard button select the convenient preset DST rules for EU Standard European Union button select the convenient Current Windows Setting button to apply the DST rules as currently configured for...

Страница 25: ... Advanced button allows for the adjustment of additional network communication settings Under most typical operating circumstances it is not necessary nor is it suggested to change the advanced settings options Hint If the advanced settings have been altered for your clock and you begin experiencing difficulty in getting your clock to synchronize to the NTP time server or the clock begins acting e...

Страница 26: ...refer to the previous sections for configuring the IP address NTP time server s Time Zone and DST settings Under normal operating circumstances it is not necessary to adjust or align the hands However if for any reason the hands are not tracking the NTP source an adjustment function has been built into the ND CLK and its support software Note The visual determination of the accuracy of the hand di...

Страница 27: ...ensure that the hands have been correctly set Set Password The third option on the clock configuration pull down menu allows you to set a password for each individual device The password must be entered twice to confirm the entry The password is a maximum of 11 characters and a minimum of 1 character and is case sensitive Click the OK button to save the password or cancel to discard the change War...

Страница 28: ...on to forget the password s however this will require entering the password again for each device Alternately you can remove the incorrect password entry during a WinDiscovery session by going to the right click menu for the device and selecting Forget memorized password option This option will be added to the right click list and will only be displayed if a password is memorized Note the factory ...

Страница 29: ... for configuring the IP address NTP time server s Time Zone and DST settings The time can either be set to the time of the PC running WinDiscovery or a manual time and date may be entered The function may be most useful for lab situations as the clocks keep time via their internal precision oscillator when NTP is not present Note When the network clock has access to NTP servers information obtaine...

Страница 30: ...ing Exceeded field describes the event where the time adjustment exceeded a value that will be set in the NTP Clock Configuration Advanced Ceiling Note the statistics will reset if you change the NTP server Troubleshooting Tip In addition to the standard status indications the network clock will display a special error indicator under the status window if either a DHCP server cannot be located or ...

Страница 31: ...ally the same as performing a manual soft reset device as described above The NTD clock will perform a soft restart under the following conditions If the clock is not receiving an NTP poll response or an NTP broadcast response depending on which mode the NTD clock is in If the clock is set to use DHCP and no DHCP server can be found The timeout before doing a soft restart is no less than every 10 ...

Страница 32: ...ion regarding the special features and modes of the network clock Note for security purposes the Telnet interface can be disabled When disabled you will no longer be able to access the device with Telnet To re enable the Telnet feature one of the other configuration methods must be used or the clock must be reset to factory default configuration If you are not familiar with the Telnet application ...

Страница 33: ...or remove the password enter 3 for this option Bear in mind that a lost forgotten password cannot be recovered Note the factory default password is public Hint To remove password protection for a clock select the Set Password command You will be prompted to enter the old password Enter the old password Do not enter anything into the New Password or Confirm Password fields Click OK to save Upon you...

Страница 34: ...icast query mode reply no for broadcast and multicast options Set NTP Client Parameters The NTD clocks are set to query for NTP on a regularly scheduled basis factory set to 10 minute intervals To adjust the settings for query interval and additional broadcast multicast NTP client parameters select this option Note these settings are considered advanced settings and under most typical operating ci...

Страница 35: ... Month such as 3 for March Day of week such as Sunday and week in Month 1st 2nd etc DST end point can be set as absolute date or floating day Set Digital Display Intensity Note this menu items applies to digital display models only Set Digital Display Type Note this menu items applies to digital display models only Set Digital Display Options Note this menu items applies to digital display models ...

Страница 36: ...This hand location and alignment information is retained in non volatile flash Under normal circumstances it should not be necessary to adjust or align the hands However if for any reason the hands are not tracking the NTP source an adjustment function has been built into the ND CLK and its support software Once you enter this mode the hands of the analog clock will stop Enter the correct hour min...

Страница 37: ...configure to pass through both directions UDP broadcasts on ports 6165 6166 and 6264 3 Verify that the hub router switch is capable of supporting the 10MB speed that the attached network clock requires 4 Verify that a DHCP BOOTP server is present on the network If the clock has been configured to use DHCP for network configuration but no DHCP BOOTP server is present the clock may not respond to di...

Страница 38: ...ress the Discover button again and wait until the discovery process completes Close the current WinDiscovery session and restart the WinDiscovery application Take steps to increase the bandwidth and reduce network traffic If this is an ongoing problem consider the Telnet configuration method or remove the clock system to an isolated LAN Problem Clock appears in RED text under WinDiscovery device t...

Страница 39: ...ict or you may do a Reset Configuration to restore the system to factory default settings If DHCP was selected and the NTD fell back to a 169 254 xxx xxx address approximately every 10 depending upon the Advanced Settings values minutes the Ethernet interface will be reinitialized and the NTD clock will attempt to get an IP address from the DHCP server If the NTD is successful the error will be cl...

Страница 40: ... If using the convenient single button configuration for US Canada or EU DST be certain to use the latest version of WinDiscovery and apply it for each clock The latest version of WinDiscovery will have the latest DST rules for the US Canada and EU implemented Or you may enter the DST rules manually If using the Current Windows Setting button to apply the DST rules verify that the rules on the com...

Страница 41: ...ration To correct the problem switch to manual networking configuration or determine why the local DHCP server is not operating 2 If the clock cannot resolve its DHCP address in DHCP mode the unit will periodically perform a soft restart to re initialize its communication port and DHCP configuration See the trouble shooting section on fallback IP address 3 If the clock has not been configured with...

Страница 42: ...he WinDiscovery application 3 As an alternative to closing the WinDiscovery session Right click on the device being administered in the main WinDiscovery window The right click pop up menu now contains an entry for Forget Memorized Password Select this option 4 If using the global password feature the global password does not match the existing password of the device you are trying to manage Eithe...

Страница 43: ...er serviceable parts inside the ND CLK Please contact the factory if you require servicing or repair Power Requirements POE Model Power Over Ethernet Input Voltage 48VDC per IEEE802 3af Mode A 48VDC on spare pins 4 5 return on pins 7 8 Mode B 48VDC data on pins 1 2 return on pins 3 6 POE input connector RJ45 POE power consumption 12 95 W class 0 Protection Provided by the IEEE802 3af standard Leng...

Страница 44: ... the following Safety standards EN60950 1 2001 Safety of Information Technology Equipment Waste Electrical and Electronic Equipment Directive WEEE 2002 95 EC The NTD models are considered WEEE Category 9 Monitoring and Control Instruments Equipment as defined by the WEEE Directive and therefore fall within the scope of the WEEE Directive For more information about Symmetricom s WEEE compliance and...

Страница 45: ...sing any product from Symmetricom the Buyer consents to and agrees that the Buyer s sole and exclusive remedy for any damages or losses incurred by the Buyer as a result of Symmetricom s breach of its one year Limited Warranty for defects in materials and workmanship or otherwise in connection with any claim respecting the product shall be limited to the repair or replacement of the product or a r...

Страница 46: ...bal password information is saved in the registry and if enabled does not require the password to be entered during subsequent WinDiscovery sessions To maintain security for your system you may wish to disable the global password at the end of each session or only place WinDiscovery in a password protected user account or Administrator account which restricts access to the WinDiscovery application...

Страница 47: ...oint the global password settings will be saved in the registry of the computer running WinDiscovery During this session and subsequent sessions of WinDiscovery you will not have to enter the password Disabling the Global Password Turn of the global password feature in WinDiscovery by deselecting the Enable Global Password checkbox It is not necessary to delete the information from the global pass...

Страница 48: ...ble Global Password checkbox Use WinDiscovery to manually change the password for each device to the new desired global password by using the Set Password command Available under the right click menu for each device Enter the new password information and select the Change Password button Repeat for each device in the group that is to use the global password ...

Страница 49: ...ND CLK User Manual Rev 1 0 1 Sep 08 d Symmetricom Inc Re enable the global password feature by selecting the Enable Global Password checkbox Enter the new global password ...

Страница 50: ...e Scratches Always store the clock face up in the protective plastic shipping bag until ready for installation and during transporting to the installation site Do not place the clock face lens surface down on any surface as this may scratch or mar the lens Scratches and minor abrasions can be minimized by using a mild automobile polish Three such products that tend to polish and fill scratches are...

Страница 51: ...netrate sticker material apply heat hair dryer to soften the adhesive and promote removal GASOLINE SHOULD NEVER BE USED Job Site Precautions It is recommended the clock be removed from the wall and stored face up in its protective shipment bag during painting and construction New construction and renovations frequently require that the job site be cleaned of any excess mortar paint sealant primers...

Страница 52: ... between the case and the wall along the exterior of the wall which may pinch the power or signal cable and create a hazardous condition A dimensioned drawing has been provided to show a keep out zone for the rear of the clock In order to allow the clock to be mounted flush against the surface of the wall do not route wires or connectors in the keep out zone In addition a template of the mounting ...

Страница 53: ...ND CLK User Manual Rev 1 0 1 Sep 08 b Symmetricom Inc ...

Страница 54: ...ND CLK User Manual Rev 1 0 1 Sep 08 c Symmetricom Inc ...

Страница 55: ...ND CLK User Manual Rev 1 0 1 Sep 08 d Symmetricom Inc ...

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