NTP100 – Rev 1.0.1 Dec-04
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© Masterclock
®
, Inc.
In addition, the NTP100-TC has a special provision to support non-date encoded SMPTE or IRIG-B/B(1) time code. The
NTP100-TC contains a feature to set/overwrite the date or year manually by writing this information to the battery backed
real-time clock. When selected, this allows the user to either ignore the date/year information from the time code signal, or to
provide a date/year for SMPTE (date) or IRIG-B/B(1) (year) time code formats without this information in the time code
signal.
Front-Panel Behavior
The 6 digit LED time display shows the current time (referenced to UTC) available to the NTP100.
The green LED displays synchronization status with the internal time reference. When the LED is blinking at a
twice per second rate it indicates that the NTP100 is not synchronized with an external reference such as GPS or
time code. Once synchronized to the external reference, the green LED will blink at a once per second rate.
The amber LED lights briefly when an NTP request is serviced. This is provided as a general indication of when
and how frequently NTP requests are being processed.
Major Feature Overview
The features discussed in this section can be configured in several ways - the WinDiscovery software application provided
with your NTP100, or a terminal-style interface accessible via RS-232 and Telnet. Consult the section entitled Configuration
for details on how to adjust settings through the aforementioned mediums.
DHCP/BOOTP Auto-Configuration
DHCP (Dynamic Host Configuration Protocol) is a mechanism for automating the configuration of networked devices that
use TCP/IP. When DHCP is enabled, DHCP configuration acquisition will overwrite any manual configuration items. A
precursor to DHCP is BOOTP. The NTP100 can obtain configuration from a BOOTP server when no DHCP server is
present.
Factory default: DHCP enabled.
The following RFC2132-defined optional configuration items are, when available, used by the NTP100 for configuration
purposes:
Option
No.
Comments
Router
3
The first IP address provided will be used for router/gateway
configuration.
Domain Name Server
6
Up to two server IP addresses may be specified. NTP100 will treat
addresses as primary and secondary DNS servers.
NTP100- Front Panel, Common to all models
