Description – Ambient Controller - ACC 501 User Manual
Page 5

ACC501
www.ambient.de
3
2.
Description
2.1 Lemo 5 pin, common industry TC standard
Pin
1 Ground
2 TC in, nominal level 100 mV min., DC decoupled
3 Aaton ASCII protocol in/out
4 Tune signal @ 1.92 MHz, (DC in 5 to 12 Volts for Rev. A boards)
5 TC out, TTL level
2.2 IR - Infrared Port
For setting compatible Clockit devices and data transfer using Aaton ASCII protocol without
the need of linking the units via 5 pin Lemo, typical range 4 ft
2.3 BNC, EXT. SYNC
This input will accept sync signals such as composite video PAL, NTSC or trilevel sync and
analyze/ identify them providing vertical sync and field number signals in future software
revisions.
In the current software revision, a PAL video signal can be used to tune the reference
oscillator. Thus, Lockit boxes can be recalibrated to match the speed of an OB van or house
sync providing frame accurate sync of hardwired and portable equipment. The total time
code drift and diversion of a working system is minimized for most ease in edit.
2.4 BNC, WCLK
The word clock output is in sync to the internal time code reference generator which makes
it most useful when synchronizing equipment like stand alone audio recorders or DAWs.
44.1 KHz to 192 KHz with pull up and pull down are available.
2.5 USB 1
Used for programming new software or as serial interface for SMPTE/P2 conversion.
EXT power in, 5 Volts.