DIR911 Instant Recall Recorder
©2000 Eventide Inc.
26
Appendix A - DIR911 Accepted External Time Source Protocols
The
DIR911
will synchronize to the NENA RS-485 standard time code formats 0, 1, or 2. Here
are the formats and what the characters mean:
The Eventide
ECW-40
supports the following RS-232/485 protocols.
FORMAT 0 - <CR><LF>I<^><^>DDD<^>HH:MM:SS<^>DTZ=XX<CR><LF>
KEY:
<CR>
Carriage return
<LF>
Line
feed
<I>
Sync Status: ^ = sync; ? = sync lost; * = Manual Set
<^>
Space
<DDD>
Day of Year (001-366)
<HH:MM:SS> Hours:Minutes:Seconds
<D>
Daylight saving indicator (S,I,D,O)
<XX>
Time Zone Setting (00-23)
FORMAT 1 - <CR><LF>I<^>WWW<^>DDMMMYY<^>HH:MM:SS<CR><LF>
KEY:
<CR>
Carriage return
<LF>
Line
feed
<I>
Sync Status: ^ = sync; ? = sync lost; * = Manual Set
<^>
Space
<WWW>
Day of week: SUN|MON|TUE|WED|THU|FRI|SAT
<DD>
Numerical day of month, 1-31
<MMM> JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC
<YY>
Year,
00-99
<HH:MM:SS> Hours:Minutes:Seconds
FORMAT 2 - <CR><LF>IQYY<^>DDD<^>HH:MM:SS.XXX<^>LD
KEY:
<CR>
Carriage return
<LF>
Line
feed
<I>
Sync Status: ^ = sync; ? = sync lost; * = Manual Set
<Q>
Quality (^,A,B,C,D) [^<1 A<10 B<100 C<500 D<500ms]
<YY>
Year,
00-99
<^>
Space
<DDD>
Day of Year (001-366)
<HH:MM:SS> Hours:Minutes:Seconds
<.>
Decimal
Separator
<XXX>
Milliseconds
<L>
Leap second indicator
<D>
Daylight savings indicator (S,I,D,O)
NOTE: The DIR911 will NOT synchronize to any time source where the sync status is NOT set
to a SPACE. In other words, the DIR911 will only synchronize its internal clock to an external
time source when the external time source is synchronized to valid time.
