NTD-SERIES NETWORK TIME PROTOCOL CLOCK - DATE DISPLAY (Series II) USER MANUAL www.masterclock.com 2484 W Clay St, St Charles MO 63301 Tel: 636-724-3666 Fax: 636-724-3776 © Masterclock, Inc.
DISCLAIMER The information contained in this document is subject to change without notice. Masterclock, Inc. (hereinafter MC) makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. MC 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.
Table Of Contents Introduction ................................................................................................................................................................................. 1 Installation ................................................................................................................................................................................... 3 Operating Environment.....................................................................................
Troubleshooting Tips ................................................................................................................................................................. 32 Specifications............................................................................................................................................................................. 38 Physical ..............................................................................................................................
Introduction Network Time Display (NTD) is a series of versatile, multi-featured Network Time Protocol (NTP) driven clock displays. These devices have a built-in SNTP client and are designed to display time referenced to an internal or Internet NTP server, using SNTP (Simple Network Time Protocol). The network clocks can be configured for time zone offset and automatic Daylight Saving Time (DST) adjust and allow for maintenance free reliable operation.
Display Type Four Digit Digital Time • • • • Name NTD24 2.3” Characters Wallmount 12 hour (with PM indicator) time 24 hour time hh:mm:ss Worldwide Time Zone Worldwide Automatic DST Power options (Part numbers) POE model (NTD24-POE) DC model (NTD24-DC) NTD44 NTD44 4” Characters, Wallmount POE model (NTD44-POE) NTD24 DC model (NTD44-DC) Please refer to the Specifications section of this document for additional details regarding each model and available options.
Installation Operating Environment The NTD series is not water or moisture proof and is designed for indoor use only. Treat it as you would any other delicate electronic device and do not expose it to water, excessive heat, or physical abuse. See the Specifications section for details on the environmental/operational conditions. Pre-Installation Checklist Before installing an NTD, one should be prepared with the following basic configuration information that the device will require.
AC Versions: AC models of the NTD clock are supplied with an IEC power cord 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 connector on the rear of the unit. POE Versions: Power Over Ethernet (POE) models will require an IEEE 802.
After application of power, the network clock will go through an internal self-test. Time from the real-time clock backup will then be displayed until the clock is configured to find an NTP reference. The colons will flash until an NTP source is found. The flashing colons are a normal visual status indication alerting the user that the clock is not synchronized to the NTP server. [Note: the NTD series of clock displays are enabled with DHCP by default.
Major Feature Overview The network clocks can be configured using one of the following: • • • WinDiscovery software application provided with your clock Telnet (once IP address is known or configured) RS-232 terminal-style interface (such as Windows™ HyperTerminal application) Consult the section entitled Configuration for details on how to adjust settings through the aforementioned mediums.
The device name may be changed from the factory default name by entering a unique name of up to 32 characters. [Hint: You can change the device name to one convenient for your site – preferably one that helps you to later identify the exact physical location of the device. Up to 32 character device names are supported] [Note: The IP address of the unit is required to configure the NTD clock with Telnet.
NTP Addressing Modes Unicast (Query) The network clock supports the unicast method of NTP packets transfer. Unicast method involves direct transfer of requested information from the NTP server to the NTP client based on a query or NTP time request. The unicast method is supported simultaneously when either the broadcast or multicast modes are selected. Broadcast The network clock supports the broadcasting of NTP packets.
must be enabled and configured for multicasting addressing to be implemented 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.
Configuration Methods Basic operation of the network clock is configured via the WinDiscovery software supplied with the clock, or via Telnet if the IP address of the clock is known, or via the RS-232 interface. Only one configuration method should be used at a time. WinDiscovery The WinDiscovery (WD) program is a Windows based program supplied with the network clock. WinDiscovery is currently supported under Windows 2000/XP/2003 Server/Vista operating systems.
Clicking on any device group will list in the right pane of the WD window all devices of that type found. Only the devices shown in the right window can be managed. To configure another device group, click on the device name in the left window and the device names will then appear in the right window, ready to be managed. To configure and manage a device , double click or right click the device name and a menu appears.
Properties The network configuration may be viewed in a summary form under the Properties selection. Network Settings The network settings must be established for the clock to operate on the network. You must be a network administrator or have their support to complete 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.
duplicate IP address condition, the network clock will be re-assigned a fallback IP address of 169.254.xxx.xxx ] 169.254.xxx.xxx IP (fallback) address DHCP is enabled by default. If DHCP is enabled and no DHCP server can be found the NTD clock will default to a 169.254.xxx.xxx address. In addition, if an IP address conflict is determined when the Ethernet interface is initialized (either DHCP or static) the NTD clock will default to a 169.254.xxx.xxx address. This 169.254.xxx.
Device Settings Each network clock can be configured to display time (or date) in the format that you prefer, using time zone offsets and DST settings to completely customize it relative to UTC time. The device settings 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 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 NTD clock will operate only in Unicast /Query mode using server port 123.
The Broadcast/Multicast timeout period (in minutes) is adjustable when this mode is selected. [Note: While listening to NTP broadcasts, the network clock cannot query the time server.] [Note: Some NTP/SNTP clients will expect NTP servers to operate on port 123 and cannot be configured to utilize alternate ports.] Listen for NTP via Multicast Address The network clock can be set up to listen to NTP using multicast addressing by selecting the “Listen for NTP via multicast address(es)” checkbox.
Display Control The lower half of the window configures the time/date displayed on the clock. The brightness control is a sliding bar to vary the brightness of the clock. This feature is useful to accommodate lighting conditions and viewer needs. The six digit (NTDX6) clocks can be configured to display time in 12 or 24-hour format, or date in MM:DD:YY, indicated as US, or DD:MM:YY, indicated as European format.
Daylight Saving Time Settings The Daylight Saving Time button, also included in the right half of the window, give the clock complete flexibility to display any time zone and DST combination. First select the time zone, by clicking the Time Zone button as described above. Next click the Daylight Savings Time button to configure the Daylight Savings Time, if appropriate. You may use either of the following options are available for setting the DST rules.
Serial Port Option Parameters The NTD clock contains both an RS232 and RS485 serial port. These ports may be used in conjunction with supported serial port devices to create a network addressable hardware device using the NTD clock as an NTP interface. A Serial devices settings button is included for setting up the RS232 or RS485 serial port communications. These ports are automatically configured as disabled by default at the factory for standard operation.
[Note: Enabling serial port detection of attached devices by selecting the checkbox will significantly increase the time to discover the network clocks.
User Display Control The User Display Control button allows for the enabling and utilization of an additional special user mode control. This special operational mode bypasses the display of time obtained from the NTP server and places user controlled alphanumeric characters on the display. Under most typical operating circumstances it is not necessary nor is it suggested to enable or utilize these settings.
‘Remember this password for the session’ checkbox to eliminate typing the password for each configuration change. WinDiscovery will not remember or store the password (s) after the session is closed. It is important for the user/system administrator to maintain passwords in a safe place. If you enter the wrong password and selected the “remember password” checkbox, you will receive an error upon selecting OK or Apply to any configuration changes.
[Note: When the network clock has access to NTP servers, information obtained via NTP will overwrite any manually established time/date.] Practical use of this feature requires the clock to be removed from the network, or for NTP server configuration to be left undefined. [Note: for the purpose of maintaining its internal clock, the network clock always assumes the time entered is UTC and saves this information as the internal UTC time.
Four (4) Digit and six (6) Digit Digital Clock Status screens [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 if the device has an IP address conflict due to either DHCP or Static IP addressing. Under these conditions the unit will also be assigned a fallback IP address of 169.254.xxx.xxx, and appear in RED text under the main WinDiscovery window.
Reset Device The network clock may be reset with a soft reset to allow the device to clear its current communications buffer and re-initialize its processing, includes re-requesting of a DHCP address. This feature is intended to allow the user to remotely reset the unit. This feature does not restore the unit to its factory default state. Simply right click on the clock you are interested in a select “Reset Device”.
To initiate a Telnet session in Windows, select the Run Command Line interface from the Start menu and enter the command “telnet” followed by a space, and then the IP address of the unit. [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.
Set Device Name To set the device name, select this menu option. Enter the desired device name. Set/Reset Password To set, change or remove the password, select this option. Bear in mind that a lost/forgotten password cannot be recovered [unless a reset to factory default settings is performed]. [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.
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 circumstances it is not necessary nor is it suggested to change the advanced settings options.
Set Digital Display Intensity The digital clock display intensity is controlled with a scale of 1 to 14 with 14 being brightest. Enter the value for the desired intensity setting. Set Digital Display Type Allows configuration for time display (12 and 24 hour) for 4 and 6 digit clocks, or date display (MM/DD/YY or DD/MM/YY) for 6 digit clocks. Set Digital Display Options The digital clock display special options may be adjusted.
Enable/Disable User Control of Digital Display The digital display clock may be used in a special user control mode allowing specific time/date/character information to be displayed, other than the actual time display mode based on the NTP server time. This mode is password protected. [Note: this menu items applies to digital time display models only] Enter X to exit the Telnet menu. This will disconnect your Telnet session from the clock. NTD Clocks User Manual - Rev 2.2.
RS-232 Terminal Configuration The recommended method of configuring the NTD clock is via the network interface using either the WinDiscovery application or Telnet. In addition, the installer may opt to configure or update the firmware for the device using an alternate method than the standard Ethernet port. A serial port interface has been included as a provision. This item can be accessed on the rear of the chassis. The RS-232 configuration interface behaves identically to the Telnet interface.
Troubleshooting Tips [Important Note: WinDiscovery uses bi-directional UDP messaging on port 6163 for both the discovery process and to communicate configuration and status packets to and from the Masterclock® network clock(s). Delivery of UDP messages/packets is not guaranteed. If you experience intermittent problems with WinDiscovery , try closing the current session and restart the application.
1. The WinDiscovery application has been open for too long and the clock configuration(s) has(have) changed. For example, this can occur if the DHCP server has issued new/refreshed addresses. Close the WinDiscovery application and restart. 2. The discovery process was not complete before selecting clock(s). After selecting “Discover” button, wait until the discovery status indicates 100% completion. 3. Verify that the physical network cables and equipment and configuration for UDP have not changed. 4.
• If static IP addressing is being used the original conflicting static IP address can be restored by doing a soft restart of the NTD clock using either WinDiscovery or telnet prior to changing any other configuration parameters. [IMPORTANT NOTE: if the configuration of the network clock is changed while a 169.254.xxx.xxx is being used (for example: changing the Time Zone offset), then the current 169.254.xxx.
Problem: Clock did not properly negotiate the Daylight Savings Time to standard time (or vice-versa) transition. Possible reasons/solutions: 1. Time zone offset has been configured incorrectly. Provide the correct time zone configuration. 2. Daylight savings time has been configured incorrectly. This is configured separately from the time zone configuration.
Problem: Colons are flashing for several seconds when I apply new configuration settings under WinDiscovery or Telnet. Problem: Colons are flashing for several seconds at random times. Possible Reasons/solutions: 1. This is also normal behavior each time new configuration settings are downloaded to the clock and saved using either WinDiscovery or Telnet.. During this time, the network clock will receive the new configuration settings and save them to its flash memory.
Possible reasons/solutions: 1. You have entered and “remembered” an incorrect password in the password windows. This is now causing multiple error indication windows titled “bad password” to pop-up for each portion of the configuration message that is being sent to the clock. You must clear the memorized password using one of the two options below. 2. WinDiscovery only remembers the password for the current session, close the WinDiscovery session and reopen.
Specifications Type Model LED Display Dimension Display Modes Color Options LED Height inches(cm) Time 12/24 hour mode AM/PM indicator Date US (mm/dd/yr) Date European(dd/mm/yr) Red -RED Green-GRN Amber -AMB Blue - BLU Desktop/Shelf CHASSIS Mounting Wall 2.3(5.8) hh:mm • • NA NA • • • • • Bracket (provided) 4(10) hh:mm • • NA NA • • • • • Bracket (provided) Flushmount FM44 option 4(1.8) Alternating Current AC (Standard) Direct Current (DC option) 2.3(5.
Communications – Protocol • DHCP (enabled by default) configuration, or via Static IP mode entry.
• Relative Humidity ...........................................................Up to 90% (non condensing @ 25°C) Compliance Models: NTD26-AC,NTD26-POE,NTD46-AC,NTD46-POE, NTD86-AC,NTD24-POE, NTD24-DC, NTD44-POE,NTD44-DC This equipment has been tested and found to comply with the radiated and line conducted limits for a Class B digital device. These limits are designed to provide reasonable protection against harmful interference in a commercial/residential installation.
LIMITED WARRANTY This Masterclock, Inc. (hereinafter MC) product warranty extends to the original purchaser. MC warrants the NTD26, NTD46, and NTD86 against defects in materials and workmanship for a period of one year from date of sale. If MC receives notice of such defects during the warranty period, MC will, at its option, either repair or replace products, which prove to be defective.
Appendix A - WinDiscovery Global Password Feature A significant feature has been added to WinDiscovery V2.6.0 and greater, which allows for the use of global passwords. Prior to the implementation of a global password feature, a password was required to be entered for each device being administered during a WinDiscovery session. With the global password feature enabled, a single password may be entered once during an initial session.
Enabling Global Password • • • • • Enable the global password feature by selecting the “Enable Global Password” checkbox. Enter the global password. Select “OK” At this point 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.
Changing the Global Password • Disable the global password feature in WinDiscovery by deselecting the “Enable 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.
• • Re-enable the global password feature by selecting the “Enable Global Password” checkbox. Enter the new global password. NTD Clocks User Manual- Rev 2.2.2 - Jan-10 45 © Masterclock®, Inc.
