Configuration – American Time PoE User Manual

Page 24

PoE Installation Manual

Appendix

oubleshooting

Configuration

Network Clock

Connect

Installation

Intr

oduction

Specifications

Configuration

Network (cont)

When a DHCP network is not present at intial start-up, the PoE clock will default to a random Static IP address in the range of

169.254.1.0 to 169.254.254.255.

For analog clocks the IP address may be reset by restoring the clock to factory defaults by holding in the Default Button for

9-12 seconds. Both Status and Relay LEDs will flash for 5 seconds to confirm the defaults setting. Please reference the DHCP

troubleshooting section if you are experiencing DHCP issues.

For digital clocks the IP address may be reset by restoring the clock to factory defaults using the following steps:

1. Remove power to the clock for at least 2 seconds (disconnect the patch cable from the back of the clock).

2. Hold down the Set button on the back of the clock.

3. Apply power back to the clock (reconnect the powered patch cable to the clock) while continuing to hold down the Set

button.

4. 888 should scroll across the clock display.

5. Release the Set button.

Time Synchronization

•All changes require the Save Settings button to be clicked. For the changes to take effect, the Restart button must be clicked.

SNTP Servers – This is a list of NP servers from which the network clock will receive time. The selected server will be

attempted first. If the server fails to provide a valid time the list is traversed until a valid time is received. This list may

be user defined. A list of verified NIST time servers is available in Appendix A.

2. Time Zone – The Time Zone entry sets the time zone. Selecting the CUSTOM time zone will enable the Custom Time

Zone fields. Reference Appendix B for a list of all available time zone configurations.

3. SNTP Resync Period (HH:MM) – The SNTP Resync Period is used to determine how often the clock requests the time

from the SNTP server. The default and recommended interval for the clock to resync is every 15 minutes.

Use 12 Hour Format

•All changes require the Save Settings button to be clicked. For the changes to take effect, the Restart button must be clicked.

This allows the user to select between 12 and 24 hour time display. Note: Available only for digital clocks.

Daylight Saving Time

•All changes require the Save Settings button to be clicked. For the changes to take effect, the Restart button must be clicked.

Daylight Saving Time (DST) varies greatly from one country to another and sometimes even within countries themselves. As a

result, there are many parameters used to handle all of the various rules in use throughout the world. The default setting uses

the rule observed by the majority of the United States.

1. Daylight Saving Time – The Daylight Saving Time entry is used to set the DST to AUTO, OFF, or CUSTOM. The AUTO

selection is the standard DST for the United States.

Note: Not all time zone selections will allow for changing the DST to AUTO or OFF. For example, if USCT – USA Central is

selected for the time zone then the DST cannot be set to OFF. However, this may be done by selecting UTC-6 for the time zone

and selecting the DST to OFF. Reference Appendix B for a list of all available DST configurations.

2. Fixed Day – The Fixed Day check box will be enabled if the Daylight Saving Time is set to CUSTOM. It is used to

indicate whether or not DST occurs on a specific date. For example, if DST started on March 1

of every year, the

Fixed Day box needs to be checked. The Fixed Day check box changes how the Start and Stop parameters function. If

the box is checked, the Day of Week and Week of Month portion of the Start and Stop parameters are disabled.

If the box is not checked, the Date portion of the Start and Stop parameters is disabled. The default setting is to have

the box unchecked (Fixed Day disabled).