Technical data

Installation & Operation Manual GM-TTT

Page 28

2.5 Start Operating Mode

Free-running counter operating mode: when this mode is initiated by the start button, the unit

simply switches to a free-running counter mode internally.

Pressing this button during start operating mode and having the START function enabled (at

submenu SET - ... - PARA): the time value which has last been chosen as a start value (menu

SET - START) will be transferred to the time addresses of the LTC output, and the generator

keeps on counting continuously from this start value on.

LTC output frequency

• 1

preference: If the unit works within a television system, choose genlock to a black-burst

or video signal (select genlock = bb at menu SET - ... - LOCK and press genlock button).

• 2

preference: With a stable external LTC signal (not a VTR LTC) choose genlock to LTC

(select genlock = LTC at menu SET - ... - LOCK and press genlock button).

• 3

preference: Press intern button to select the internal reference.

Internal clock, time/date handling

• The internal clock get a pre-set from a built-in or external real time reference. The mode of

operating with the reference time input is selected at menu REFER - MODE1 and MODE2.

Time zone programming is done at submenu ZONE (select the offset and the Daylight

Saving Times).

• If any time and/or date applications should be kept during the start operating mode, the

LTC output frequency should be locked to a stable reference, because this is the frequency

of the internal clock as well. The internal clock can be programmed to get a time and date

update every second (menu REFER - MODE 1), in that case the internal clock follows the

reference time mostly independent from the LTC output frequency. The binary groups of

the LTC output may contain time and/or date, as selected at menu SET - ... - USER MOD,

for example the date (different formats) or the time and date of the LTC(MTD) format for

use in the MTD system.

Time code information: time address

• Free-running counter, starts with the values selected at menu SET - START (if enable at

menu SET - ... - PARA).

Time code information: binary groups

• As selected at menu SET - ... - USER MOD.