Sntp Protocol - GE D90 Plus Instruction Manual

CHAPTER 6: COMMUNICATIONS
NOTE:

SNTP protocol

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 77: TFTP configuration settings
The following settings are available.
Main UDP Port Number
Range: 1 to 65535 in steps of 1
Default: 69
This setting specifies the main UDP port number.
TFTP Data UDP Port Number 1, TFTP Data UDP Port Number 2, TFTP Data UDP Port
Number 3, TFTP Data UDP Port Number 4
Range: 0 to 65535 in steps of 1
Default: 0
These settings specify data for UDP port numbers 1 through 4. A TFTP data port value of
zero specifies that the D90
Changes to the TFTP protocol settings become active when power to the D90
cycled (off-to-on).
Do not set more than one protocol to the same TCP/UDP port number, as this results in
unreliable operation of those protocol.
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The D90 supports the Simple Network Time Protocol (SNTP) specified in RFC-2030. With
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SNTP, the D90 can obtain clock time over an Ethernet network. The D90
SNTP client to receive time values from an SNTP/NTP server, usually a dedicated product
using a GPS receiver.
Unicast and broadcast SNTP are supported. The UR
multicast or anycast SNTP functionality.
If SNTP functionality is enabled at the same time as IRIG-B, the IRIG-B signal provides the
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time value to the D90 clock for as long as a valid signal is present. If the IRIG-B signal is
removed, the time obtained from the SNTP server is used. If either SNTP or IRIG-B is
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enabled, the D90 clock value cannot be changed using the EnerVista UR
Setup software.
Select the Settings > Communications > Network > SNTP menu item to open the SNTP
configuration window.
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automatically assigns a port number.
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-series relays do not support
NETWORK SETTINGS
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has been
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acts as an
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