Private Data - THOMSON LDK 4502 User Manual

Private Data

Clear A 1 Clear
Star 4P B 2 ND1/4
Star 6P C 3 ND1/16 Smart
Soft Focus D 4 ND1/64 card
VTR Std. Ext.
Save File Iris
Aux Tracker
Tracker Channel
P&T
A pan and tilt unit as an example
connected to the Aux connector.
Private data channels can be used for the transmission of
serial data via the triax cable. For example, electronic
scriptboard or character data for a video display unit can be
transmitted to the camera.
The tracker microphone intercom channel is used for the
data channel from camera head to Base Station. The
program intercom channel is used for the data channel
from Base Station to camera head. The input and output
signals are available on the auxiliary connectors of the
camera and Base Station (for camera see the connectors
and cables section). If a channel is used for private data,
then of course the original functions are no longer available.
To select the function of the Base Station to camera
channel set the Base Station menu item Audio/Intercom \
Private Data \ PROG Channel to Priva.
Installation
Triax Cable
PROG Channel
User's Guide LDK 4502 - HDTV Camera Base Station
HDTV
Camera Base Station
To select the function of the Camera to Base Station
channel set the Base Station menu item Audio/Intercom \
Private Data \ Tracker Channel to Priva.
Remember that the propagation-delay times are different
for different triax cable lengths, especially if a return signal
is involved. At maximum lengths of 2400 metres the total
delay is at least 25 µsec. and can be more than 30 µsec,
depending on the type of triax cable.
Data signal specifications
Baudrate: 2400
Input level: TLL, possible RS232
Input impedance: 100Kohm
Output impedance: ~300 ohm
Max load: ~1Kohm
Tracker Channel
CTL
PROG Channel
A Control is as an example
connected to the Aux
connector.
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