Mounting
The 'Call station extension (RS485, 8)' PTO2006-A1 is a keyboard extension for the 'Desk call station (RS485, 8+1)' PT2009-A1.
The buttons can be labeled with insertable labels. The label can be accessed by opening the label lid.
All buttons are freely accessible and can't be locked.
Installation
The PTO2006-A1 is connected to a PT2009-A1 via the extension connection.
Extension connectors - 'X1' and 'X5'
The PTO2006-A1 provides 2 extension connectors 'X1' and 'X5'.
One of the extension connectors is connected to the PT2009-A1; the other one is connected to the next PTO2006-A1.
Pin | Description | Remark |
|---|---|---|
1 | GND | GND reference voltage |
2 | 24 V | - |
3 | NC | Do not use this pin |
4 | 3.3 V | 3.3 V is not required to connect the extension module |
5 | SDA | Serial I2C bus interface, data |
6 | SCL | Serial I2C bus interface, clock |
ID switch configuration
The ID switch must be set to the correct values to identify the components on the serial I2C bus interface. The ID must be unique on one serial I2C bus interface.
1 | 2 | 3 | 4 | 5 | 6 | 7 | ID | Description |
|---|---|---|---|---|---|---|---|---|
X | X | X | X | X | 0 | 0 | - | Not allowed, master component |
X | X | X | X | X | 1 | 0 | 1 | First extension component |
X | X | X | X | X | 0 | 1 | 2 | Second extension component |
X | X | X | X | X | 1 | 1 | 3 | Third extension component |
- 0 = OFF; 1 = ON
- X = undefined; can be OFF or ON
- The extension components are defined with the switches 6 and 7.
- The valid address range is from 1 to 3.
- It is not allowed to set the switches 6 and 7 to 0.
- The switches 1 to 5 don't matter.