version 2.0 | June 2006
DCR 4000 User’s Guide | Installation
1-11
1.7.3
Multiple Viper-Venom configuration with multiple Clock-It boxes
The mechanism described under 2 had the disadvantage that the time code and
synchronization are lost when the camera and Venom are switched off. In a ‘battery
powered situation’ this often occurs. So solve this, we have to use a Clock-It box for
each Viper - Venom combination. This is shown in the diagram below:
At the start of a working day, all Venom-Viper combinations are brought together. The
Clock-It boxes are connected to a master clock (this can be one of the Clock-It boxes),
and to one reference (gen-lock) signal. This way all Clock-It boxes are synchronized
both in the reference signal and in the time code. Each Viper-Venom camera is
connected to a Clock-It box, which provides both the gen-lock and LTC-in signal to the
docking plate. The clock in the Clock-It box is stable enough to allow for
synchronization at the start of a working day only. When the Viper and Venom are
switched off, the internal clock in the Clock-It box continues running.
*) Clock-It is a registered trademark of Ambient Recording GmbH, Germany.
Venom
Audio
HD-SDI
Power
Confidence Out
2
LTC
Power
HD-SDI
HD-SDI
Genlock
2
2
Multicore Cable
(no power in cable if Viper
power plug is used)
2
Genlock
LockIt
Scratch Audio Transmission
Viper #1
Viper #n
2
LTC
Audio
Recorder
LTC
Genlock
LockIt
LockIt
Master
Clock
- will be wired to LockIt once a day ( session ... )
