Service manual

Section 5: The Patchbay
Euphonix CS3000/2000 Operation Manual 5 - 7
Channel Patch Unit
In addition to the 90-pin connector for the snake that connects to the Audio
Tower, there are six 38-pin Elcos on the rear of a channel patch unit (diagram
below). These are used to wire studio equipment into and out of the patch
unit. Every Channel patch unit is identical except for the labels, which reflect
the different channel numbers. The unit shown below is labeled for inputs and
outputs of channels 1-4.
The left-hand side of the Channel patch unit accesses the 6 inputs to each of 4
channels; M1, M2, L1, L2, L3 & L4. The right-hand side of the unit
accomodates the 5 outputs from each of the 4 channels; OUT1, OUT2, OUT3,
DIR1 & DIR2.
User Connections
The Elco 90 (rear left) is the main connection between the Audio Tower and
the patchbay. This is not a user connection. The 6 Elco 38 connectors are the
user connections into and out of the system. Each connector represents one
colored column as described earlier. In a basic Euphonix system, all 6 of these
connectors are available for user connections. However, some of these Elco 38
connectors are used for system options such as the Audio CUBE or ES108A
Dynamics and are not available for user connections when these options are
fitted. The specific connectors used for system options vary depending on
application and system configuration.
Note that both the Input and Output sides of the patchbay labels have blank
areas for user labelling. These are for the user-definable inputs and outputs to
the Euphonix system. Below is a diagram that shows the user inputs and
outputs for a standard Channel patch unit. The Master patch unit also has
user-definable ins and outs.
1
49 50
2
1
M1 M2
1
Out1 Out2
2
Out1 Out2
3
Out1 Out2
4
Out1 Out2
1
Dir1 Dir2
2
Dir1 Dir2
3
Dir1 Dir2
4
Dir1 Dir2
1
Out3 Dir2
2
Out3 Dir2
3
Out3 Dir2
4
Out3 Dir2
2
M1 M2
3
M1 M2
4
M1 M2
1
L1 L2
2
L1 L2
3
L1 L2
4
L1 L2
1
L3 L4
2
L3 L4
3
L3 L4
4
L3 L4
3 4 5 6 7 8 9 101112131415161718192021222324252627282930313233343536373839404142434445464748
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User-Definable Inputs
User-Definable Outputs
Audio destinations —>
<— Audio sources
TO AUDIO MAINFRAME
USER OUT3 / DIR2 USER DIR1 / DIR2 USER OUT1/OUT2 USER L3 / L4 USER L1 / L2 USER M1 / M2
EUPHONIX P/N 950-01098 CHANNEL PATCHBAY
CHASSIS GND
JACK GND
Outboard
Interface
Direct / BUS
Out
Insert Send
Line Input/
Insert Return
Variable Gain
Input
Line Input/
Insert Return
Rear
Zinc
Gold
1
49 50
2
1
M1 M2
1
Out1 Out2
2
Out1 Out2
3
Out1 Out2
4
Out1 Out2
1
Dir1 Dir2
2
Dir1 Dir2
3
Dir1 Dir2
4
Dir1 Dir2
1
Out3 Dir2
2
Out3 Dir2
3
Out3 Dir2
4
Out3 Dir2
2
M1 M2
3
M1 M2
4
M1 M2
1
L1 L2
2
L1 L2
3
L1 L2
4
L1 L2
1
L3 L4
2
L3 L4
3
L3 L4
4
L3 L4
3 4 5 6 7 8 9 101112131415161718192021222324252627282930313233343536373839404142434445464748
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