4. Description
4.1 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
4.2 IR - Infrared Port
For setting compatible Lockit devices and data transfer using Aaton ASCII protocol without the need of
linking the units via 5 pin Lemo, typical range 4 ft
4.3 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 timecode drift and diversion of a
working system is minimized for most ease in edit.
4.4 BNC, WCLK
The word clock output is in sync to the internal timecode 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.
4.5 USB 1
Used for programming new software or as serial interface for SMPTE/P2 conversion.
EXT power in, 5 Volts
4.6 USB 2
Serves as MIDI TC I/O interface for sending MTC (Midi timecode) to a DAW.EXT power in, 5 Volts
The Mini B USB ports follow the USB specification. It is recommended to have the Controller powered
on with the appropriate operation mode selected when establishing the connection to a computer.
Do not connect to two computers simultaneously!
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