Model: MC-1-M (2U)
Doc. Ref. no. : - m05/om/101
Issue no. 14
Page 99 of 103
User’s Manual
maximum electrical load capacity as specified in GPS Master Clock Model MC-1-M
specification. Refer product specifications and section 11.2.2.7 for further details.
17.10 No response to Ping Command
Below steps are to be checked for troubleshooting the mentioned issue:
1) GPS Master Clock Model MC-1-M is shipped with factory set Ethernet configuration (IP,
gateway and subnet address) depending on the provided standard and optional Ethernet
ports.
2) Check the connection route from GPS Master Clock Model MC-1-M Ethernet port to end
device and configuration of intermediate Ethernet switches and gateways. GPS Master Clock
Model MC-1-M Ethernet port addresses of subnet and gateway should be configured as per
network domain architecture.
3) If the unit is directly connected to remote PC using RJ-45 cable, it is recommended to
connect unit through Ethernet switch or using cross RJ-45 cable configuration.
4) User should configure the IP address of all Ethernet outputs as per network domain
configurations where GPS Master Clock Model MC-1-M device is to be installed. User can
configure IP address of Ethernet port using telnet connection with respective Ethernet NTP
port. It is recommended to Power recycle the unit after all Ethernet NTP ports are configured
with new IP address.
17.11 Not able to configure IP address of Ethernet Port
1) Refer points 2 & 3 of troubleshoot index 17.10.
2) For configuring new network settings of particular Ethernet port, user should enter old IP
address of GPS Ethernet port during telnet communication. Ensure that pinging with
old/previous IP address of GPS Ethernet port should be stopped before proceeding for IP
configuration. It is also recommended to stop all IP related process such as NTP, SNMP with
the old GPS IP address before starting IP configuration.
3) At a time, only one telnet communication with particular Ethernet port of GPS Master Clock
Model MC-1-M device is allowed.
4) It is necessary to exit the telnet communication after doing necessary Ethernet settings failing
of which, GPS Master Clock Model MC-1-M will not allow to reconnect with telnet session on
same IP address. Please refer section 13.1 & manual Appendix E for telnet session and
configuration.
17.12 NTP client not synchronizing with GPS NTP output port
Following steps are to be checked for issues of NTP communication failure or NTP client time not
synchronizing with GPS NTP Server port.
1) IP address of GPS NTP port and NTP client device should be same network domain.
2) Please verify the Ethernet connection between GPS NTP port and NTP server device by
pinging the IP address of GPS NTP port. If IP address of GPS NTP port is not reachable,
NTP communication will be failed. Refer troubleshooting index 17.10 and 17.11.
3) GPS NTP Server port IP address should be properly configured in NTP client device.
4) Various NTP parameters should be configured properly in NTP client device.
