Studer Xcom-MS, Руководство пользователя

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Studer Innotec SA
Xcom-MS
User Manual V1.0.1 13
4.2. Description of the front
Figure 4.2. Front and isometric view of the Xcom-MS
Key Description of the part Description of the function
a RS-485 cable
This cable connects the solar controllers with the RS-485
bus. The connection is done by serial bus. The wiring is
as follows:
• black wire: "GND"
• blue wire: "A"
• yellow wire: "B"
• red wire: "+12V"
b LED indicators
This LED flashes briefly every two seconds during normal
operation.
c
Connectors for the Xtender
communication bus These connectors allows the Xcom-MS to connect to one
or several Xtender.
d
Switch for termination of the
Xtender communication bus
This switch turns on or off the termination of the communi-
cation bus. See section 4.3. The termination is by default
activated.
4.3. Connecting the Xtender communication bus
The devices in the Xtender range are equipped with a proprietary communication bus for data exchange,
configuration and updates of the system. The connection is made by linking the devices with the supplied
communication cables. This results in a bus in line where the termination must be activated on the devices
at both ends in order to obtain the configuration in figure 4.3.
Each device has a switch that allows to choose between open "O" or terminated "T". The devices at both
ends of the line must be set to "T". The others, receiving two communication cables, must be set to "O".