Mounting Instructions

Connect external components
Call station extension PTO2006-A1
7
156 | 173
A6V10430579_en--_b
7.7 Call station extension PTO2006-A1
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.
Fig. 101: PTO2006-A1 connector rear view
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
I2C interface data
6
SCL
I2C interface clock
Table 123: PTO2006-A1 extension connectors - 'X1' and 'X5'