| Support > Library > Integration Guides > NetClock Master Clock ASCII Time Code Data Formats > Format 4
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Format 4
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Provides a format indicator, time sync status character, modified Julian date, time reflecting UTC with 0.1 millisecond resolution and a leap second indicator. Serial Comm ports configured for interrogation mode output this data stream immediately upon receiving the time request character. The data stream is output every second for the Remote Outputs or Serial Comm port configured for continuous output. Format 4 data structure is:
FFFFIMJDXX^HHMMSS.SSSS^L CR LF
| CHARACTER DESCRIPTOR: |
| FFFF |
Format Identifier (0004) |
| I |
Time Sync Status (space, ?, *) |
| MJDXX |
Modified Julian Date |
| ^ |
space separator |
| HH |
Hours (00-23 UTC time) |
| MM |
Minutes (00-59) |
| SS.SSSS |
Seconds (00.0000-60.0000) |
| L |
Leap Second Indicator (^, L) |
| CR |
Carriage Return |
| LF |
Line Feed |
Example: 0004 52627 124536.1942 L
| Data Format |
4 |
| Sync Status |
Time Synchronized to GPS |
| Modified Julian Date |
52627 |
| Time |
12:45:36.1942 UTC |
| Leap Second |
A leap second is scheduled at the end of the month. |
Notes
- The leading edge of the first character's start bit marks the on-time point of the data stream.
- The time sync status character I is defined as described below:
(Space) = Whenever the front panel Time Sync lamp is green.
? = When the receiver is unable to track any satellites and the Time Sync lamp is red.
* = the receiver time is derived from the battery backed clock or set manually through the Serial Setup Interface.
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