MERIDIAN2-MIB

OBJECT-IDENTITY

OBJECT-IDENTITY

OBJECT-IDENTITY

OBJECT-IDENTITY

OBJECT-TYPE

Time since NTP daemon restart.

OBJECT-TYPE

Total number of Interrupts handled by the NTP daemon.

OBJECT-TYPE

Total number of NTP request packets received by the NTP daemon.

OBJECT-TYPE

Total number of NTP request packets received via IRQ by the NTP daemon.

OBJECT-TYPE

Total number of NTP reply packets transmitted by the NTP daemon.

OBJECT-TYPE

NTP reply packets sent per second by the NTP daemon.

OBJECT-TYPE

Total number of NTP reply packets unsent by the NTP daemon.

OBJECT-TYPE

Total number of NTP request packets ignored by the NTP daemon.

OBJECT-TYPE

Total number of NTP request packets dropped by the NTP daemon.

OBJECT-TYPE

Total number of authentication failures detected by the NTP daemon.

OBJECT-TYPE

The Time Figure of Merit (TFOM) value ranges from 3 to 9 and indicates the current estimate of the worst case time error. It is a logarithmic scale, with each increment indicating a tenfold increase in the worst case time error boundaries. The scale is referenced to a worst case time error of 100 picoseconds, equivalent to a TFOM of zero. During normal locked operation with GPS the TFOM is 3 and implies a worst case time error of 100 nanoseconds. During periods of signal loss, the GPS sub-system will compute an extrapolated worst case time error. One hour after the worst case time error has reached the value equivalent to a TFOM of TFOM Fault Level, the NTP server will cease to send stratum 1 reply packets and an Alarm LED will be energized.

OBJECT-TYPE

This is a status code indicating: normal operation, a leap second to be inserted in the last minute of the current day, a leap second to be deleted in the last second of the day or an alarm condition indicating loss of timing synchronization. The leap indicator field of NTP reply packets sent from this server is set to gntpLeapIndBits.

OBJECT-TYPE

This is an ASCII string identifying the synchronization source for this NTP server. It is one of GPS, an IP address of a stratum 1 server, or NONE. If it is NONE, then the server is not synchronized, has its Leap Indicator Bits in the Alarm state and is running at Stratum 16. If it is an IP address, then the server is operating as a stratum 2 server synchronized to the network connected stratum 1 server whose IP address is shown. Check the Stratum, Leap Indicator Bits and Time Figure of Merit for further information. NTP reply packets from this server will have the reference identifier field set to gntpSyncSource if it is GPS. Otherwise it will be set to either an IP address or 0.0.0.0 (NONE).

OBJECT-TYPE

This is an ASCII string containing the floating value of the current offset in units of seconds of the NTP server CPU clock to the GPS reference time. Positive values imply that the NTP server clock is ahead of the GPS reference time.

OBJECT-TYPE

This is an integer showing the current stratum level being reported by the NTP daemon in its reply packets to clients. If it is 1, then the server is fully synchronized and delivering Stratum 1 accuracy. If it is greater than 1 and less than 16, it is synchronized to a network connected NTP server operating at one stratum lower. If it is 16, then the server is unambiguously unsynchronized. NTP clients on the network should be configured to not use the time from this server if the stratum is 16.

OBJECT-TYPE

This is an ASCII string showing the system root file system firmware version.

OBJECT-TYPE

This is an ASCII string showing the system Linux kernel firmware version.

OBJECT-TYPE

This is an ASCII string showing the installed oscillator type. It is one of TCXO, MS-OCXO, HS-OCXO, US-OCXO, Rubidium, HS-Rubidium, US-Rubidium, Cesium or US-Cesium.

OBJECT-TYPE

This is an ASCII string showing the time mode of operation for any optional IRIG timecode outputs or the optional front panel vacuum fluorescent display. It DOES NOT indicate the time mode of the Linux OS clock or the NTP sub-system. Both of these are ALWAYS UTC. It can be LOCAL, GPS or UTC.

OBJECT-TYPE

This value is the local time offset configured for any optional IRIG timecode outputs or the optional front panel vacuum fluorescent display. It is only pertinent when gntpTimeMode is set to LOCAL. It DOES NOT indicate the local time offset of the Linux OS clock or the NTP sub-system. Both of these are ALWAYS UTC. Its units are half-hours, ranging from -25 to 25, where negative values imply that the local time is behind UTC.

OBJECT-TYPE

This value is the month that Daylight Savings Time begins. It affects the local time operation of any optional IRIG timecode outputs or the optional front panel vacuum fluorescent display. It is only pertinent when gntpTimeMode is set to LOCAL. It DOES NOT affect the Linux OS clock or the NTP sub-system. Both of these are ALWAYS UTC.

OBJECT-TYPE

This value is the Sunday of the month that Daylight Savings Time begins. It affects the local time operation of any optional IRIG timecode outputs or the optional front panel vacuum fluorescent display. It is only pertinent when gntpTimeMode is set to LOCAL. It DOES NOT affect the Linux OS clock or the NTP sub-system. Both of these are ALWAYS UTC.

OBJECT-TYPE

This value is the hour that Daylight Savings Time begins. It affects the local time operation of any optional IRIG timecode outputs or the optional front panel vacuum fluorescent display. It is only pertinent when gntpTimeMode is set to LOCAL. It DOES NOT affect the Linux OS clock or the NTP sub-system. Both of these are ALWAYS UTC. It ranges from 0 to 23, where 0 is midnight.

OBJECT-TYPE

This value is the month that Daylight Savings Time ends. It affects the local time operation of any optional IRIG timecode outputs or the optional front panel vacuum fluorescent display. It is only pertinent when gntpTimeMode is set to LOCAL. It DOES NOT affect the Linux OS clock or the NTP sub-system. Both of these are ALWAYS UTC.

OBJECT-TYPE

This value is the Sunday of the month that Daylight Savings Time ends. It affects the local time operation of any optional IRIG timecode outputs or the optional front panel vacuum fluorescent display. It is only pertinent when gntpTimeMode is set to LOCAL. It DOES NOT affect the Linux OS clock or the NTP sub-system. Both of these are ALWAYS UTC.

OBJECT-TYPE

This value is the hour that Daylight Savings Time ends. It affects the local time operation of any optional IRIG timecode outputs or the optional front panel vacuum fluorescent display. It is only pertinent when gntpTimeMode is set to LOCAL. It DOES NOT affect the Linux OS clock or the NTP sub-system. Both of these are ALWAYS UTC. It ranges from 0 to 23, where 0 is midnight.

OBJECT-TYPE

ASCII string representing the current CPU internal die temperature, in units of Celsius degrees in floating point notation.

OBJECT-TYPE

This value is the CPU Free Memory in kiloBytes.

OBJECT-TYPE

This value is the CPU Load Average as percent of total load.

OBJECT-IDENTITY

OBJECT-IDENTITY

OBJECT-TYPE

This is a bit string contained in one character representing the least significant two nibbles of the GPS fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the gpsstat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 7: DAC controlling the TCXO is near the high or low limit. Bit 6: Time Figure of Merit has been >= TFOM Fault Level for 1 hour. Bit 5: Field Programmable Gate Array (FPGA) did not configure properly. Bit 4: FLASH memory had a write fault. Bit 3: GPS receiver communication fault. Bit 2: GPS reference time fault (fails sanity checks). Bit 1: NTP daemon is not polling the GPS reference clock. Bit 0: GPS receiver fault. ATTENTION: This object is deprecated for use in snmpget queries due to a defect in reporting for one specific combination of bits. It remains in this MIB for use with the gpsTrapFaultStatusChange object, where it reports accurately. Use the new gpsFaultNibble0Status and gpsFaultNibble1Status objects for querying via snmpget.

OBJECT-TYPE

This is a bit string contained in one character representing the most significant two nibbles of the GPS fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the gpsstat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 7: Primary Redundant Power Supply is Faulting. Bit 6: Secondary Redundant Power Supply is Faulting. Bit 5: Oscillator PLL Faulting. Bit 4: GPS Antenna or Feedline is Shorted or Open. Bit 3: Plug-In Option Fault. Bit 2: HP5071A Cesium Option Fault. Bit 1: Not Used. Bit 0: Installed System Power Exceeds Maximum. ATTENTION: This object is deprecated for use in snmpget queries due to a defect in reporting for one specific combination of bits. It remains in this MIB for use with the gpsTrapFaultStatusChange object, where it reports accurately. Use the new gpsFaultNibble2Status and gpsFaultNibble3Status objects for querying via snmpget.

OBJECT-TYPE

This is a bit string contained in one character representing the least significant nibble of the GPS receiver fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the cdmastat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 3: GPS Receiver Main Oscillator Frequency Control DAC near high or low limit. Bit 2: Time Figure of Merit has been >= TFOM Fault Level for 1 hour. Bit 1: Field Programmable Gate Array (FPGA) Configuration Fault. Bit 0: FLASH Memory Write Fault.

OBJECT-TYPE

This is a bit string contained in one character representing the second nibble of the GPS receiver fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the cdmastat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 3: GPS Receiver Local Oscillator Synthesizer Fault. Bit 2: GPS Receiver Local Oscillator Synthesizer Near Tuning Limit. Bit 1: GPS Decoded Time Fails Sanity Checks. Bit 0: GPS Receiver Main Oscillator Fault.

OBJECT-TYPE

This is a bit string contained in one character representing the third nibble of the GPS receiver fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the gpsstat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 3: GPS antenna is shorted. Bit 2: GPS antenna is open. Bit 1: Oscillator PLL Faulting. Bit 0: Not Used.

OBJECT-TYPE

This is a bit string contained in one character representing the most significant nibble of the GPS fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the gpsstat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 3: Not Used. Bit 2: Not Used. Bit 1: Not Used. Bit 0: Not Used.

OBJECT-TYPE

The Time Figure of Merit (TFOM) value ranges from 3 to 9 and indicates the current estimate of the worst case time error. It is a logarithmic scale, with each increment indicating a tenfold increase in the worst case time error boundaries. The scale is referenced to a worst case time error of 100 picoseconds, equivalent to a TFOM of zero. During normal locked operation the TFOM is 3 and implies a worst case time error of 100 nanoseconds. During periods of signal loss, the GPS sub-system will compute an extrapolated worst case time error. One hour after the worst case time error has reached the value equivalent to a TFOM of TFOM Fault Level, the NTP server will cease to send stratum 1 reply packets and an Alarm LED will be energized.

OBJECT-TYPE

Current GPS signal processor state. One of WRM, ACQ, LKG or LKD with WRM indicating either an OCXO or Rubidium is warming up, ACQ indicating the acquisition state and LKD the fully locked on state. This is the status of the lock of the main system timing signals to the GPS Receiver.

OBJECT-TYPE

Current GPS Receiver signal processor state. One of ACQ, DET, LKG, TKG or LKD with ACQ indicating the acquisition state and LKD the fully locked on state.

OBJECT-TYPE

Current number of GPS satellites being tracked.

OBJECT-TYPE

Current 8 bit, Automatic Gain Control (AGC) DAC value. Typical values are around 150, but antenna cable length, preamplifiers and signal splitters will affect this parameter. More positive values have the effect of increasing the RF gain.

OBJECT-TYPE

ASCII string representing the current average carrier to noise ratio of all tracked satellites, in units of dB. Values less than 35 indicate weak signal conditions.

OBJECT-TYPE

Channel 1 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 2 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 3 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 4 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 5 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 6 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 7 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 8 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 9 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 10 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 11 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

Channel 12 tracking status of the GPS receiver. Information includes the Satellite ID #, the Azimuth angle in degrees, the Elevation angle in degrees and the Carrier to Noise ratio, C/No in dB. If the Satellite ID # is 0, then no satellite is being tracked in this channel.

OBJECT-TYPE

WGS-84 latitude, longitude and height above the reference ellipsoid of the GPS antenna. Ellipsoid height may deviate from local Mean Sea Level by as much as 100 meters. This value is the last instantaneous position fix as reported by the GPS receiver. It is not averaged. The Dilution of Precision metrics, PDOP, HDOP, VDOP and TDOP are also shown. The last item, OORCnt is the Out-Of-Range count of fixes that are too far from the current user-entered or averaged reference position. If this value is non-zero, then the TRAIM algorithm is functioning to ensure that system time and output signals are not affected by erroneous data currently being received from the satellites.

OBJECT-TYPE

WGS-84 latitude, longitude and height above the reference ellipsoid of the GPS antenna. Ellipsoid height may deviate from local Mean Sea Level by as much as 100 meters. When the GPS Dynamic Mode is OFF or Static, this value is the result of a 24 hour average of fixes that is used to establish the precise timing reference position. It may also have been user-entered. The RMS PDOP and Average Count for the current position average are also shown. These will be zero if the unit is not operating in the position average mode.

OBJECT-TYPE

ASCII string indicating the source of the GPS antenna reference position. It is one of: USR (user-supplied), AVG (automatically determined by averaging thousands of 3-D position fixes), DYN (current un-averaged 3-D position fix, operation is in dynamic mode), UNK (unknown).

OBJECT-TYPE

This value is the current difference in seconds between GPS time and UTC time. GPS time is ahead of UTC time by this amount.

OBJECT-TYPE

This value is the future difference in seconds between GPS time and UTC time. Leap seconds may be inserted or deleted from the UTC timescale twice during the year: Dec 31 and June 30 at UTC midnight. If this value is the same as gpsCurrentLeapSeconds, then no leap second insertion or deletion will occur at the next possible time. If it is different, then the change will take affect at the next possible time. GPS time will be ahead of UTC time by this amount.

OBJECT-TYPE

This value, LS is the current difference in seconds between GPS time and UTC time as contained in the GPS Almanac UTC data. GPS time is ahead of UTC time by this amount. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

This value, LSF is the future difference in seconds between GPS time and UTC time as contained in the GPS Almanac UTC data. Leap seconds may be inserted or deleted from the UTC timescale twice during the year: Dec 31 and June 30 at UTC midnight. If this value is the same as gpsAlmLS, then no leap second insertion or deletion will occur at the next possible time. If it is different, then the change will take affect at the time defined by the GPS Almanac parameters, WN_lsf and DN. GPS time will be ahead of UTC time by this amount. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

This value, WN_lsf is the GPS Week Number during which the UTC leap second offset to GPS time will transition to the Leap Second Future value. The GPS week numbers began on January 6, 1980 with week number 0. If a leap second has recently been inserted, this week number could be in the past, in which case the current and future leap seconds values will be equal. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

This value, DN is the Day Number of the week in which the UTC leap second offset to GPS time will transition to the Leap Second Future value. The GPS day numbers begin on Sunday with day number 1. The leap second insertion occurs at the end of the given day. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

ASCII string representing the value of the a0 coefficient of the linear fit of the UTC offset to GPS time. a0 is the constant term in the equation, in units of seconds, in scientific floating point notation. The GPS and UTC timescales are separated by leap seconds and another small error, typically less than 10 nanoseconds, which is estimated using this linear fit. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

ASCII string representing the value of the a1 coefficient of the linear fit of the UTC offset to GPS time. a1 is the slope term in the equation, in units of seconds per second, in scientific floating point notation. The GPS and UTC timescales are separated by leap seconds and another small error, typically less than 10 nanoseconds, which is estimated using this linear fit. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

This value, WN_t is the GPS Week Number during which the reference time for the linear fit equation defined by a0 and a1 occurs. It is used along with t_ot to calculate a value of GPS seconds to offset the linear fit in the time domain. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

This value, t_ot is the second of the GPS week WN_t at which time the linear fit equation defined by a0 and a1 will evaluate to a0. The seconds range from 0 at the beginning of day number 1 to 604799 at the end of day number 7. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

This value, (GPS - UTC) is the current sub-seconds offset of the GPS timescale to the UTC timescale, computed using the received GPS almanac parameters (WN_t, t_ot, a0 and a1) and the current GPS week number and time-of-week. The units are in picoseconds. This value must be added to the current leap seconds offset to fully quantify the amount that the GPS timescale is ahead of the UTC timescale. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

ASCII string showing the GPS subsystem firmware and FPGA versions.

OBJECT-TYPE

ASCII string showing the GPS receiver firmware and FPGA versions.

OBJECT-TYPE

The GPS dynamic mode is either on or off. When it is off, the server is assumed to be in a static installation. In this case, single satellite mode of operation is supported and Timing Receiver Autonomous Integrity Monitoring (TRAIM) is supported. When the setting is on, the server is assumed to be on a moving platform. In this case, minimum four satellite, 3-D operation is required and the TRAIM functionality is minimal.

OBJECT-TYPE

Signed integer representing the current calibration delay being applied to the timing outputs, in units of nanoseconds. Positive values indicate that the timing outputs are advanced.

OBJECT-TYPE

Unsigned integer representing the current elapsed time since the unit lost GPS reception in units of seconds.

OBJECT-TYPE

ASCII string representing the magnitude of the estimated time error since the unit lost GPS reception, in units of seconds in scientific floating point notation. While locked, the value is the magnitude of the measured time error relative to GPS.

OBJECT-TYPE

ASCII string representing the measured time error of the timing outputs relative to GPS, in units of seconds in scientific floating point notation. While coasting, the value is the last measured value prior to losing GPS reception.

OBJECT-TYPE

ASCII string representing the time deviation (TDEV) of the GPS measurement data, in units of seconds in scientific floating point notation. While coasting, the value is the last computed value prior to losing GPS reception.

OBJECT-TYPE

Current 20 bit, System Voltage Controlled Oscillator DAC value. Typical range is 320000 to 640000, where more positive numbers have the effect of raising the oscillator frequency.

OBJECT-TYPE

ASCII string representing the ageing rate per day of the installed osc- illator, in scientific floating point notation. It is computed via linear regression and requires several hours following initial lock to GPS to see the first update. While coasting, the value is the last computed value prior to losing GPS reception.

OBJECT-TYPE

ASCII string representing the current equivalent averaging time of the oscillator control loop, in units of seconds in floating point notation. The value is dynamically updated based on the stability of the oscillator.

OBJECT-TYPE

ASCII string representing the current internal chassis temperature, in units of Celsius degrees in floating point notation. A value is only available when the installed oscillator is an OCXO or Rubidium.

OBJECT-TYPE

The GPS antenna fault mask is either on or off. When it is off, the server will set the Antenna Fault Bit in the Fault Status Byte if an improper antenna impedance is detected. When the setting is on, the server will not set the Antenna Fault Bit in the Fault Status Byte if an improper antenna impedance is detected.

OBJECT-TYPE

The GPS signal loss fault mask is either on or off. When it is off, the server will set the Signal Loss Fault Bit in the Fault Status Byte one hour after TFOM reaches the TFOM Fault Level. When the setting is on, the server will not set the Signal Loss Fault Bit in the Fault Status Byte one hour or more after TFOM reaches TFOM Fault level.

OBJECT-TYPE

The Primary Power input fault alarm mask is either on or off. When it is on, the server will not assert an Alarm condition on a fault in the Primary Power supply. Unlike other fault masks, the fault condition will continue to be visible in the Fault Status Byte. This mask capability is useful when performing system tests when only a single power input is available and an alarm would be undesirable. When the setting is off, the server will assert an Alarm condition in addition to setting the appropriate bit in the Fault Status Byte.

OBJECT-TYPE

The Secondary Power input fault alarm mask is either on or off. When it is on, the server will not assert an Alarm condition on a fault in the Secondary Power supply. Unlike other fault masks, the fault condition will continue to be visible in the Fault Status Byte. This mask capability is useful when performing system tests when only a single power input is available and an alarm would be undesirable. When the setting is off, the server will assert an Alarm condition in addition to setting the appropriate bit in the Fault Status Byte.

OBJECT-TYPE

The Time Figure of Merit (TFOM) Fault Level ranges from 4 to 9 and indicates the current threshold TFOM value for setting the Signal Loss Bit in the Fault Status byte. During normal locked operation the TFOM is 3 and implies a worst case time error of 100 nanoseconds. The factory default TFOM Fault Level is 9. During periods of signal loss, the GPS sub-system will compute an extrapolated worst case time error. One hour after the worst case time error has reached the value equivalent to a TFOM of TFOM Fault Level, the NTP server will cease to send stratum 1 reply packets and an Alarm LED will be energized.

OBJECT-TYPE

The Inhibit Outputs mode is either on or off. When it is on, the timebase will inhibit the timing signal outputs prior to initial lock to the GPS receiver. When it is off, all timings outputs will be on at all times, even prior to to initial lock.

OBJECT-TYPE

ASCII string representing the current GPS broadcast ionospheric model coefficient alpha0 in floating point notation.

OBJECT-TYPE

ASCII string representing the current GPS broadcast ionospheric model coefficient alpha1 in floating point notation.

OBJECT-TYPE

ASCII string representing the current GPS broadcast ionospheric model coefficient alpha2 in floating point notation.

OBJECT-TYPE

ASCII string representing the current GPS broadcast ionospheric model coefficient alpha3 in floating point notation.

OBJECT-TYPE

ASCII string representing the current GPS broadcast ionospheric model coefficient beta0 in floating point notation.

OBJECT-TYPE

ASCII string representing the current GPS broadcast ionospheric model coefficient beta1 in floating point notation.

OBJECT-TYPE

ASCII string representing the current GPS broadcast ionospheric model coefficient beta2 in floating point notation.

OBJECT-TYPE

ASCII string representing the current GPS broadcast ionospheric model coefficient beta3 in floating point notation.

OBJECT-TYPE

This value, WN_a is the GPS Week Number of the almanac containing the current set of Ionospheric model coefficients. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

This value, t_oa is the second of the GPS week WN_a of the almanac containing the current set of Ionospheric model coefficients. For more detailed information, consult the GPS-ICD-200.

OBJECT-TYPE

This value maps to the operating mode of the optional Real-Time Ionospheric Correction algorithm, which when On, indicates that the Real-Time Ionospheric Correction delay measurements are enabled to be used in the time transfer calculations to compensate for the GPS signal delay through the ionosphere. When Off, it is not active and the standard GPS broadcast Klobuchar model delay is used in the time transfer calculations.

OBJECT-TYPE

This value maps to the Validity state of the optional Real-Time Ionospheric Correction algorithm, which when True, indicates that the Real-Time Ionospheric Correction delay measurements are valid and could be used in the time transfer calculations to compensate for the GPS signal delay through the ionosphere. When False, they are not valid and the standard GPS broadcast Klobuchar model delay must be used in the time transfer calculations. A twenty-four hour period of continuous satellite tracking is required before the Real-Time Ionospheric Correction algorithm will set this validity indicator to the True state.

OBJECT-TYPE

ASCII string representing the current ensemble ionospheric delay as calculated using the standard GPS broadcast Klobuchar model, in units of nanoseconds, in floating point notation.

OBJECT-TYPE

ASCII string representing the current ensemble ionospheric delay as calculated using the optional Real-Time Ionospheric Correction algorithm, in units of nanoseconds, in floating point notation. If the Real-Time Ionospheric Correction option is not installed, NOT_INSTALLED is returned.

OBJECT-TYPE

This is a bit string contained in one character representing the least significant nibbles of the GPS fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the gpsstat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 3: DAC controlling the TCXO is near the high or low limit. Bit 2: Time Figure of Merit has been >= TFOM Fault Level for 1 hour. Bit 1: Field Programmable Gate Array (FPGA) did not configure properly. Bit 0: FLASH memory had a write fault.

OBJECT-TYPE

This is a bit string contained in one character representing the second nibble of the GPS fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the gpsstat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 3: GPS receiver communication fault. Bit 2: GPS reference time fault (fails sanity checks). Bit 1: NTP daemon is not polling the GPS reference clock. Bit 0: GPS receiver fault.

OBJECT-TYPE

This is a bit string contained in one character representing the third nibble of the GPS fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the gpsstat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 3: Primary Redundant Power Supply is Faulting. Bit 2: Secondary Redundant Power Supply is Faulting. Bit 1: Oscillator PLL Faulting. Bit 0: GPS Antenna or Feedline is Shorted or Open.

OBJECT-TYPE

This is a bit string contained in one character representing the most significant nibble of the GPS fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the gpsstat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 3: Plug-In Option Fault. Bit 2: HP5071A Cesium Option Fault. Bit 1: Not Used. Bit 0: Installed System Power Exceeds Maximum.

OBJECT-TYPE

This is a bit string contained in one character representing the least significant nibble of the optional HP5071A Cesium Operation status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the HP5071A User's Manual for the Operation status register. Each bit indicates a state when set. NOTE: If no bits are set in this OID and the gpsHP5071AOperNibble2Status and gpsHP5071AOperNibble3Status OIDs, that is an indication of an RS-232 communications fault with the HP5071A. Currently defined states encoded in this value: Bit 3: HP5071A is in Calibrating State. Bit 2: Not Used. Bit 1: Not Used. Bit 0: Not Used.

OBJECT-TYPE

This is a bit string contained in one character representing the third nibble of the optional HP5071A Cesium Operation status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the HP5071A User's Manual for the Operation status register. Each bit indicates an Operation state when set. NOTE: If no bits are set in this OID and the gpsHP5071AOperNibble0Status and gpsHP5071AOperNible3Status OIDs, that is an indication of an RS-232 communications fault with the HP5071A. Currently defined states encoded in this value: Bit 3: HP5071A is operating in Standby mode. Bit 2: HP5071A is operating on Battery power. Bit 1: HP5071A is operating Normally. Bit 0: HP5071A has a Fatal error.

OBJECT-TYPE

This is a bit string contained in one character representing the most significant nibble of the optional HP5071A Cesium Operation status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the HP5071A User's Manual for the Operation status register. Each bit indicates an Operation state when set. NOTE: If no bits are set in this OID and the gpsHP5071AOperNibble0Status and gpsHP5071AOperNibble2Status OIDs, that is an indication of an RS-232 communications fault with the HP5071A. Currently defined states encoded in this value: Bit 3: HP5071A is operating with Steered frequency. Bit 2: Not Used. Bit 1: Not Used. Bit 0: Not Used.

OBJECT-TYPE

This is a bit string contained in one character representing the least significant nibble of the optional HP5071A Cesium Questionable Data word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the HP5071A User's Manual for the Questionable status register. Each bit indicates a Questionable state when set. Currently defined states encoded in this value: Bit 3: Not Used. Bit 2: Not Used. Bit 1: HP5071A Time-of-Day Clock has not been set. Bit 0: Not Used.

OBJECT-TYPE

This is a bit string contained in one character representing the second nibble of the optional HP5071A Cesium Questionable Data word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the HP5071A User's Manual for the Questionable status register. Each bit indicates a Questionable state when set. Currently defined states encoded in this value: Bit 3: Not Used. Bit 2: HP5071A Frequency is unlocked. Bit 1: HP5071A Phase has perturbations. Bit 0: Not Used.

OBJECT-TYPE

ASCII string showing the Cesium Beam current in uA. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-TYPE

ASCII string showing the Cesium C-Field current in mA, typical range is 10.0 to 14.05 mA. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-TYPE

ASCII string showing the Cesium Ion Pump current in uA, typical range is 0 to 40 uA. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-TYPE

ASCII string showing the Cesium Electron-Multiplier voltage, typical range is 1000 to 2553 V. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-TYPE

ASCII string showing the Cesium Oven voltage, typical range is 0 to 10V. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-TYPE

ASCII string showing the Cesium Signal Gain in percent of maximum, typical range is 14.4 to 58 %. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-TYPE

ASCII string showing the Cesium microwave RF Amplitude 1 in percent of maximum, typical range is 0 to 100 %. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-TYPE

ASCII string showing the Cesium microwave RF Amplitude 2 in percent of maximum, typical range is 0 to 100 %. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-TYPE

ASCII string showing the Reference Oscillator Oven voltage, typical range is -5 to -10 V. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-TYPE

ASCII string showing the Reference Oscillator Control in percent of maximum, typical range is -95 to +95 %. It may be NOT INSTALLED if the HP5071A Cesium oscillator option is not installed.

OBJECT-IDENTITY

OBJECT-TYPE

ASCII string showing the status of the Settable PulseWidth, 1PPS Output, system-wide I/O signal. It may be NOT INSTALLED, or a string showing the current pulsewidth setting.

OBJECT-TYPE

ASCII string showing the status of the Selectable Format, Time Code Output, system-wide I/O signal. It may be NOT INSTALLED, or a string showing the current time code output format setting.

OBJECT-TYPE

Integer showing the current frequency setting of the 1 Hz resolution, Direct Digital Synthesizer (DDS) Output, system-wide I/O signal. If this option is not installed the value is -1, otherwise the value ranges from 0 to 10000000 Hz.

OBJECT-TYPE

ASCII string showing the Baudrate of the Serial Time Output, system-wide I/O signal. It may be NOT INSTALLED, or a string showing one of 4800, 9600, 19200 or 57600.

OBJECT-TYPE

ASCII string showing the Format of the Serial Time Output, system-wide I/O signal. It may be NOT INSTALLED, or a string showing one of SYSPLEX, TRUETIME, NENA0, NENA1, NENA8, ENDRUN, ENDRUNX or NMEA.

OBJECT-TYPE

ASCII string showing the Parity of the Serial Time Output, system-wide I/O signal. It may be NOT INSTALLED, or a string showing one of ODD, EVEN or NONE.

OBJECT-TYPE

ASCII string showing the first NMEA sentence selected for output from the Serial Time Output, system-wide I/O signal. This sentence is only output from the Meridian2 when the Serial Time Output Format is set to NMEA. It may be NOT INSTALLED, or a string showing one of GGA, GLL, GSA, GSV1, GSV2, RMC, VTG, ZDA or NONE.

OBJECT-TYPE

ASCII string showing the second NMEA sentence selected for output from the Serial Time Output, system-wide I/O signal. This sentence is only output from the Meridian2 when the Serial Time Output Format is set to NMEA. It may be NOT INSTALLED, or a string showing one of GGA, GLL, GSA, GSV1, GSV2, RMC, VTG, ZDA or NONE.

OBJECT-TYPE

ASCII string showing the third NMEA sentence selected for output from the Serial Time Output, system-wide I/O signal. This sentence is only output from the Meridian2 when the Serial Time Output Format is set to NMEA. It may be NOT INSTALLED, or a string showing one of GGA, GLL, GSA, GSV1, GSV2, RMC, VTG, ZDA or NONE.

OBJECT-TYPE

ASCII string showing the status of the CPU I/O Connector A. It may be NOT INSTALLED, or a string showing the current I/O selection.

OBJECT-TYPE

ASCII string showing the status of the CPU I/O Connector B. It may be NOT INSTALLED, or a string showing the current I/O selection.

OBJECT-TYPE

ASCII string showing the status of the CPU I/O Connector C. It may be NOT INSTALLED, or a string showing the current I/O selection.

OBJECT-IDENTITY

OBJECT-IDENTITY

OBJECT-TYPE

ASCII string that describes the Plug-In Option that is installed in this slot, or NOT INSTALLED if no Plug-In is detected. It includes the part number and serial number of any detected Plug-In.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port A on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port B on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port C on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port D on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port E on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port F on the Plug-In Option in this slot.

OBJECT-IDENTITY

OBJECT-TYPE

ASCII string that describes the Plug-In Option that is installed in this slot, or NOT INSTALLED if no Plug-In is detected. It includes the part number and serial number of any detected Plug-In.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port A on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port B on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port C on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port D on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port E on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port F on the Plug-In Option in this slot.

OBJECT-IDENTITY

OBJECT-TYPE

ASCII string that describes the Plug-In Option that is installed in this slot, or NOT INSTALLED if no Plug-In is detected. It includes the part number and serial number of any detected Plug-In.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port A on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port B on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port C on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port D on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port E on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port F on the Plug-In Option in this slot.

OBJECT-IDENTITY

OBJECT-TYPE

ASCII string that describes the Plug-In Option that is installed in this slot, or NOT INSTALLED if no Plug-In is detected. It includes the part number and serial number of any detected Plug-In.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port A on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port C on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port C on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port D on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port E on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port F on the Plug-In Option in this slot.

OBJECT-IDENTITY

OBJECT-TYPE

ASCII string that describes the Plug-In Option that is installed in this slot, or NOT INSTALLED if no Plug-In is detected. It includes the part number and serial number of any detected Plug-In.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port A on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port B on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port C on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port D on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port E on the Plug-In Option in this slot.

OBJECT-TYPE

ASCII string that describes the current setting for BNC I/O Port F on the Plug-In Option in this slot.

OBJECT-IDENTITY

OBJECT-TYPE

This value is the Version of the Precise Time Protocol, which is 2.

OBJECT-TYPE

This value is the log base 2 of the PTP Sync Interval in seconds. Values range from -7 to 0, which covers the range from 1/128 to 1 second.

OBJECT-TYPE

This value is the log base 2 of the PTP Announce Interval in seconds. Values range from 0 to 4, which covers the range from 1 to 16 seconds.

OBJECT-TYPE

This value is the PTP Priority1 parameter. It ranges from 0 to 255.

OBJECT-TYPE

This value is the PTP Priority2 parameter. It ranges from 0 to 255.

OBJECT-TYPE

This value maps to the PTP Delay Mechanism, one of E2E, P2P or disabled.

OBJECT-TYPE

This value is the PTP Domain parameter. It ranges from 0 to 255.

OBJECT-TYPE

This value maps to the PTP Time Mode, one of UTC or PTP.

OBJECT-TYPE

This value is the PTP multicast Time-To-Live parameter. It ranges from 1 to 255.

OBJECT-TYPE

This value maps to the PTP Clock Class, one of Locked, Holdover or Unlocked on either the PTP or arbitrary, i.e. UTC time scale.

OBJECT-TYPE

This value maps to the PTP Time Scale, one of ARB or PTP. When operating in other than PTP Time Mode, this value is always ARB, arbitrary.

OBJECT-TYPE

This value maps to the PTP Port State, one of Initializing, Faulty, Disabled, Listening, PreMaster, Master, Passive, Uncalibrated or Slave.

OBJECT-TYPE

This value maps to the PTP Time Source, one of Atom, GPS, Radio, PTP, NTP, Hand, Other or Oscillator.

OBJECT-TYPE

This value is the UTC offset from Atomic Time in seconds. It is currently 35 seconds.

OBJECT-TYPE

This value maps to the validity of the UTC offset from Atomic Time in seconds. It is either False or True.

OBJECT-TYPE

This value maps to the PTP Clock Accuracy, with values ranging from 25 nanoseconds to Unknown.

OBJECT-TYPE

This value maps to the state of the Leap 59 second indicator, which when True, indicates that a UTC leap second deletion event is imminent. It is either False or True.

OBJECT-TYPE

This value maps to the state of the Leap 61 second indicator, which when True, indicates that a UTC leap second insertion event is imminent. It is either False or True.

OBJECT-TYPE

This value maps to the state of the PTP Time Traceable indicator, which when True, indicates that the time of the PTP synchronization messages is traceable to the designated time scale. It is either False or True.

OBJECT-TYPE

This value maps to the state of the PTP Frequency Traceable indicator, which when True, indicates that the frequency of the PTP synchronization messages is traceable to the designated time scale. It is either False or True.

OBJECT-IDENTITY

OBJECT-TYPE

This value is the Version of the Precise Time Protocol, which is 2.

OBJECT-TYPE

This value is the log base 2 of the PTP Sync Interval in seconds. Values range from -7 to 0, which covers the range from 1/128 to 1 second.

OBJECT-TYPE

This value is the log base 2 of the PTP Announce Interval in seconds. Values range from 0 to 4, which covers the range from 1 to 16 seconds.

OBJECT-TYPE

This value is the PTP Priority1 parameter. It ranges from 0 to 255.

OBJECT-TYPE

This value is the PTP Priority2 parameter. It ranges from 0 to 255.

OBJECT-TYPE

This value maps to the PTP Delay Mechanism, one of E2E, P2P or disabled.

OBJECT-TYPE

This value is the PTP Domain parameter. It ranges from 0 to 255.

OBJECT-TYPE

This value maps to the PTP Time Mode, one of UTC or PTP.

OBJECT-TYPE

This value is the PTP multicast Time-To-Live parameter. It ranges from 1 to 255.

OBJECT-TYPE

This value maps to the PTP Clock Class, one of Locked, Holdover or Unlocked on either the PTP or arbitrary, i.e. UTC time scale.

OBJECT-TYPE

This value maps to the PTP Time Scale, one of ARB or PTP. When operating in other than PTP Time Mode, this value is always ARB, arbitrary.

OBJECT-TYPE

This value maps to the PTP Port State, one of Initializing, Faulty, Disabled, Listening, PreMaster, Master, Passive, Uncalibrated or Slave.

OBJECT-TYPE

This value maps to the PTP Time Source, one of Atom, GPS, Radio, PTP, NTP, Hand, Other or Oscillator.

OBJECT-TYPE

This value is the UTC offset from Atomic Time in seconds. It is currently 35 seconds.

OBJECT-TYPE

This value maps to the validity of the UTC offset from Atomic Time in seconds. It is either False or True.

OBJECT-TYPE

This value maps to the PTP Clock Accuracy, with values ranging from 25 nanoseconds to Unknown.

OBJECT-TYPE

This value maps to the state of the Leap 59 second indicator, which when True, indicates that a UTC leap second deletion event is imminent. It is either False or True.

OBJECT-TYPE

This value maps to the state of the Leap 61 second indicator, which when True, indicates that a UTC leap second insertion event is imminent. It is either False or True.

OBJECT-TYPE

This value maps to the state of the PTP Time Traceable indicator, which when True, indicates that the time of the PTP synchronization messages is traceable to the designated time scale. It is either False or True.

OBJECT-TYPE

This value maps to the state of the PTP Frequency Traceable indicator, which when True, indicates that the frequency of the PTP synchronization messages is traceable to the designated time scale. It is either False or True.