Crystal Vision
The CoCo Controller-48V
CoCo104 User Manual R2.0
32
26/09/05
26-way D-Type pin connections
Pin No
.
Description Pin No. Description Pin No. Description
1
+5V
10
GPI_6
19
GPI_14
2
0V
11
GPI_7
20
GPI_15
3
GPI_1
12
GPI_8
21
GPI_16
4
GPI_2
13
GPI_9
22
GPI_17
5
0V
14
0V
23
GPI_18
6
GPI_3
15
GPI_10
24
GPI_19
7
GPI_4
16
GPI_11
25
GPI_20
8
GPI_5
17
GPI_12
26
0V
9
+5V
18
GPI_13
Note:
GPIs 19 and 20 are currently unassigned.
4.2 CoCo Controller-48V operation
To use the CoCo Controller-48V proceed as follows:
Connect the CoCo Controller-48V panel to a Crystal Vision frame with a CoCo104
module installed as explained in the previous section
Power the Controller panel - the panel will automatically search for a CoCo104
module
CoCo Controller-48V panel
Searching Mode
The panel indicates that it is in searching mode by flashing the source and destination buttons and
LEDs in a back and forth pattern. Button presses will have no effect whilst searching.
The panel will remain in searching mode until it has established communications with a CoCo104
board. If communication with a CoCo104 is lost, it will return to searching mode.
Panel LEDs
LED
Meaning when lit
Comment
Ref
Reference present
Composite/SDI reference selection cannot be made from the panel
Comms
Comms OK
Illuminates to indicate communication with CoCo104
Panel lock
Panel locked
All buttons are locked out - to toggle panel lock on and off hold down
source 1 button and destination 8 button for approximately three
seconds
Input
present
Shows which paths
have signals
The eight LEDs under the source buttons show video in to CoCo104,
and the eight LEDs under the destination buttons show video out of
CoCo104 and are therefore routing dependent
