Spectracom NetClock 9400 Series, Руководство пользователя

Страница: 414 / 467

Sync Status Day 271 of year 2015.
Date April 15, 2015.
Time 12:45:36 EDT (Eastern Daylight Time). The time difference is 5 hours behind UTC.
Leap Second No leap second is scheduled for this month.
5.4.9 Spectracom Format 4
Format 4 provides a format indicator, time synchronization status character, modified Julian
date, time reflecting UTC with 0.1 millisecond resolution and a leap second indicator. Format 4
data structure is shown below:
E x a m p l e :
FFFFIMJDXX^HHMMSS.SSSS^L CR LF
Where:
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 (space, L)
CR Carriage Return
LF Line Feed
The start bit of the first character marks the on-time point of the data stream.
The time synchronization status character (
I
) is defined as described below:
? When the receiver is unable to track any satellites and the time synchronization lamp is red.
* When the receiver time is derived from the battery backed clock or set manually through the Setup Port
Interface.
The leap second indicator (
L
) is defined as:
398 NetClock User Reference Guide
APPENDIX