Inova OnTimeTM owner manual

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Inova OnTime Digital Clock Owner's Manual

Here are some things to keep in mind as you set up and use DHCP private option 230:

•A clock must be re-booted to request a new configuration string from the DHCP server. The clock does not automatically request a new configuration string at the expiration of the DHCP lease interval.

•If private option 230 is not configured on the DHCP server, this does not cause an error condition on the clock. Rather, the clock will receive an IP address from the DHCP server in the usual fashion but the clock’s settings for Time Server, Time Zone, DST, etc. will not change.

•If private option 230 is already in use for another purpose on the DHCP server, it should not interfere with the operation of the clocks. However, in order to use the DHCP configuration feature, the clock must be set (via a telnet session) to request a different private option – e.g., private option 231. See Setting a Different DHCP Option Number on a Clock on page 12 for additional information.

All claims based on information publicly available at time of printing. All other product or service names mentioned in this document may be

trademarks of the companies with which they are associated. © 2007 Inova Solutions. All rights reserved. 6.12.2007 page 10

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Contents Inova OnTimeTM Digital Clock Inova OnTimeTM Digital Clock Table of Contents Recording Static IP Addresses or Host Names Maintenance Product WarrantyTables FiguresIntroduction to Inova OnTimeTM Digital Clocks Safety Instructions Technical Specifications Technical SpecificationsONT4 Models ONT6 Models Surface Mounting Unpacking and InstallationPendant Mounting Pendant Mounting Single or DoubleCantilever Mounting Cantilever Mounting Single or DoublePage Clock Configuration Methods Digital Clock ConfigurationConfiguration Method Description Reference With a clock configuration string. Clocks willConfiguration Planning Using Dhcp for Addressing and ConfigurationPage Option Value Creating a Dhcp Configuration StringConfiguration Setting Option NameExamples of Common Dhcp Configuration Strings Setting a Different Dhcp Option Number on a ClockVerifying the Dhcp Configuration Settings on a Clock Command DescriptionDhcp Configuration Example for Microsoft Server Accessing Telnet Command Line and Signing Telnet ConfigurationDisplay ? or help display Accessing Help CommandsSetting the Dhcp Address Assigning an IP AddressSpecifying a Time Server Setting the Static IP AddressSelecting the Time Server Selecting Time Zones Testing the Time Server SynchronizationConfiguring Colons On/Off Configuring Daylight Saving TimeConfiguring 12/24 Time Format Configuring AM/PM IndicatorTroubleshooting OnTime Digital Clock TroubleshootingRecording IP Addresses or Host Names Recording Static IP Addresses or Host NamesMaintenance Repair and Return Product WarrantyCantilever Glossary of TermsDisplay ? or help display Appendix a Digital Clock ConfigurationSolution ConditionArp Sntp -sNetstat Reboot Configuration CommandsAppendix B Sntp Basics Appendix C Configuring Dhcp Options for Microsoft Servers