User manual

Masterclock www.masterclock.com
13
Configuration
Masterclock CLDNTD12 clocks maintain their configuration data in non-volatile flash memory,
even when the power is off. The CLDNTD12 clocks are configured on screen using WinDiscovery
software.
The factory default configuration:
SETTING
CONFIGURATION SELECTION
Enabled
DHCP/BootP provided network configuration
Enabled
DHCP provided NTP server address entry
Enabled
Query (Unicast) NTP client
Disabled
Time Zone offset
Disabled
Automatic Daylight Savings Time adjustment
None
Telnet access
DHCP/BOOTP AUTO-CONFIGURATION
DHCP (Dynamic Host Configuration Protocol) is a mechanism for automating the configuration of
network devices that use TCP/IP. When DHCP is enabled, DHCP configuration acquisition will
overwrite any manual configuration items.
Factory default: DHCP enabled.
BOOTP was a precursor to DHCP. The network device can obtain configuration from a BOOTP
server when no DHCP server is present.
The following RFC2132 DHCP options defined configuration items are, when available, used by the
network device for configuration purposes:
OPTION
#
COMMENTS
Time Offset
2
The value provided will be used for the Time Zone offset configuration, unless it
is defined as zero in which case it will be ignored and the network device will
rely on internal configuration. Note: this option does not provide information
appropriate for dynamic Daylight Savings Time use.
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. Network device will treat
addresses as primary and secondary DNS servers.
Network Time Protocol Server
42
Up to two server IP addresses may be specified. Network device will treat
addresses as primary and secondary NTP servers.