Technical data

Installation & Operation Manual GM-TTT
Page 37
Select mode:
This installation selects between two kinds of handling the time of an down-counting timer. It
influences the time addresses only, not the data of the LTC(MTD).
6 6-digits operating mode: the time addresses of the LTC output will be prepared for a
LTC reader display, which only displays hours/minutes/seconds. It is supposed, that
the LTC reader adds one frame to compensate for delay as it is a recommended
practice. In a 6-digits display the down-counting timer reaches zero as soon as the
seconds switches from 1 to 0. Compared with the 8-digits operating mode the time
addresses get a one second minus one frame addition.
Down-counting
hours:minutes:seconds(:frames
)
Time addresses,
6-digit mode
LTC display,
8 digits
LTC display,
6 digits
00:00:02 (:01) 00:00:02:00 00:00:02:01 00:00:02
00:00:02 (:00) 00:00:01:24 00:00:02:00 00:00:02
00:00:01 (:24) 00:00:01:23 00:00:01:24 00:00:01
etc.
00:00:01 (:01) 00:00:01:00 00:00:01:01 00:00:01
00:00:01 (:00) 00:00:00:24 00:00:01:00 00:00:01
00:00:00 (end) 00:00:00:23 00:00:00:24 00:00:00
8 8-digits operating mode: the time addresses of the LTC output will be prepared for a
LTC reader display, which displays the frames as well. It is supposed, that the LTC
reader adds one frame to compensate for delay as it is a recommended practice. In a
8-digits display the down-counting timer reaches zero if even the frames have 00. If
the 8-digits mode is selected but a 6-digits display used, the time at the display
appears to be one second in advance.
Down-counting
hours:minutes:seconds(:frames
)
Time
addresses,
8-digit mode
LTC display
8 digits
LTC display
6 digits
00:00:02 (:01) 00:00:01:01 00:00:01:02 00:00:01
00:00:02 (:00) 00:00:01:00 00:00:01:01 00:00:01
00:00:01 (:24) 00:00:00:24 00:00:01:00 00:00:01
00:00:01 (:23) 00:00:00:23 00:00:00:24 00:00:00
etc.
00:00:01 (:01) 00:00:00:01 00:00:00:02 00:00:00
00:00:01 (:00) 00:00:00:00 00:00:00:01 00:00:00
00:00:00 (end) 23:59:59:24 00:00:00:00 00:00:00