Multiple video head connections
Two or more AdderView CATx 1000 units can be connected together so that they operate in
a synchronised manner. Synchronised operation is useful for applications that require multiple
video signals to be switched together. This type of operation is usually required where each computer
is fitted with multiple video cards or video cards with multiple video heads. Whenever a AdderView
CATx 1000 channel is switched, it sends an RS232 command out on the serial interface (marked OPTIONS on the
rear panel). An AdderView CATx 1000 will switch its channel if it receives the same command on the serial interface. Consequently, by linking the serial interfaces, a master unit may be made to automatically switch one or more slave units as shown in the diagram.
It should be noted that the synchronisation cable deliberately does not have the transmit pin of the Slave End connector linked to the receive pin of the Master End connector. To do so would cause the Slave unit to be able to switch the Master unit. This would setup an endless cyclical switching sequence that would prevent the AdderView CATx 1000 devices from operating correctly. For more details about the serial synchronisation cables, see Appendix 2.
Slave AdderView CATx 1000
| 16 | 15 | 14 | 13 | 8 | 7 | 6 | 5 | ONLY |
| OPTIONS |
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| INDOORUSE | |
5V | 12 | 11 | 10 | 9 | 4 | 3 | 2 | 1 | |
2.0A |
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| COMPUTER CONNECTIONS |
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| COMPUTER CONNECTIONS |
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Serial synchronisation cable
| 16 | 15 | 14 | 13 | 8 | 7 | 6 | 5 | ONLY |
| OPTIONS |
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| INDOORUSE | |
5V | 12 | 11 | 10 | 9 | 4 | 3 | 2 | 1 | |
2.0A |
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| COMPUTER CONNECTIONS |
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| COMPUTER CONNECTIONS |
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Master AdderView CATx 1000
The local user ports can also be used to view multiple video head installations.
X100X100
Slave monitor | Master monitor |
Notes
It is recommended that the
second CAM in each pair is a
computer to derive its power.
Pairs of CAMs can be strapped
Computers fitted with dual video heads
16
