EXAMPLE 3:
Should you be working with a CobraNet Audio source that does not support the serial bridge feature, you can follow this next connection
COBRANET
AUDIO
SOURCE
ETHERNET
SWITCH 
scheme. The DSAPilot PC is connected to DSAi module "A" using an
PC
DSA
PILOT
485 | CM1 | SLink |
| DSA "A" |
|
| PLink |
|
485 | CM1 | SLink |
| DSA "B" |
|
| PLink |
|
485 | CM1 | SLink |
| DSA "C" |
|
| PLink |
|
485 | CM1 | SLink |
| DSA "D" |
|
| PLink |
|
Figure 8.6.5c Example 3
EXAMPLE 4:
This is a more complex configuration where both analog and CobraNet digital audio are required to be connected to the modules. It is important that you do not use the link connectors. Doing this would cause a communication loop through the link connector and the CobraNet interface.
Cobranet |
|
| ETHERNET |
Audio |
|
| |
Source |
|
| SWITCH |
PC | 485 | CM1 | SLink |
DSA |
|
|
|
PILOT |
|
|
|
DSA "A"
Phoenix |
|
Connector | PLink |
485 | CM1 | SLink |
DSA "B" |
| |
Phoenix |
|
|
Connector | PLink |
|
485 |
| CM1 |
| SLink |
|
|
|
|
|
DSA "C" 
Phoenix |
|
Connector | PLink |
485 |
| CM1 |
| SLink |
|
|
|
|
|
DSA "D" 
Phoenix |
Connector PLink |
Analog
Audio
Souce
Figure 8.6.5d Example 4
8.6.6 AVOIDING COMMUNICATION LOOPS
Communication loops will occur if a computer control message can find more then one path to a DSAi module. The consequence of this is that the network can quickly become overloaded with likely intermittent and/or faulty communication. When determining your system connections, draw it out and see if a loop will be created. Just follow the arrows. Here are some examples to NEVER repeat.
41
