Crystal Vision
Hardware installation
TANDEM HD-20 User Manual R1.4
9
24/05/2007
If the V-bit is consistently high, to indicate continuous error states, or to indicate non-audio
data, then the processor will give a silent output. All other cards, except RS4, pass audio data
unaltered even when V bit is set or held high.
Link jumpers are provided to select between 110 Ohm (upper two pins), HiZ (balanced –
centre pins only) or 75 Ohm (unbalanced – lower two pins). For TANDEM HD-20 jumper
JL3 must be in the 24-bit (TAD) position.
Notes:
In general, balanced outputs require the use of rear modules with a D-Type connector
and unbalanced outputs are for use with BNCs.
HiZ is achieved by removing termination jumpers – they can be parked for safe keeping
by replacing them using only one pin.
2.3 Rear modules and signal I/O
The Indigo 4 4U frame will house up to 24 single height modules with up to three power
supplies. The Indigo 2 2U frame will house up to 12 single height modules and dual power
supplies. The Indigo 1 1U frame will house six single height modules and a single/dual power
supply. The Indigo desk top box has a built-in power supply and will house up to two single
height modules.
Note:
For details of fitting rear connectors please refer to the appropriate frame manual.
RM33 rear module connections
The RM33 being a single height module will allow maximum packing density with the
maximum number of outputs available.
RM33 rear module connector
Description
RM33
•
24 TANDEM HD-20
modules per Indigo 4
frame
•
12 per Indigo 2 frame
•
Six per Indigo 1 frame
•
2 per Indigo DT
•
All frame slots can be
used
BNC
I/O assignment
HD SDI OUT
Serial digital output
HD SDI OUT
Serial digital output
NC
No user connection
HD SDI IN
Serial digital input
