Installation Instructions

Install internal components
Call station interface (RS485) PTO2008-A1
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A6V11899867_en--_a
6.3.4 Connect 'PACE-Bus' (RS485)
The PTO2008-A1 provides one 'PACE-Bus' (RS485) connector ('X2').
'PACE-Bus' (RS485) connector - 'X2'
Pin
Description
Remark
1
D-
RS485 data -
2
D+
RS485 data +
3
GND
GND reference voltage
4
-
Not used
Table 41: PTO2008-A1 'PACE-Bus' (RS485) connector - 'X2'
6.3.5 Connect analog audio inputs
The PTO2008-A1 provides one connector ('X3') for analog audio inputs connected
to the call station microphone.
Analog audio inputs connector - 'X3'
Pin
Description
Remark
1
SI+
Audio-In +
2
GND
GND reference
3
SI-
Audio-In -
Table 42: PTO2008-A1 analog audio inputs connector - 'X3'
6.3.6 Connect analog audio outputs
The PTO2008-A1 provides one connector ('X4') for analog audio outputs
connected to the call station speaker.
Analog audio outputs connector - 'X4'
Pin
Description
Remark
1
SO+
Audio-Out +
2
GND
GND reference
3
SO-
Audio-Out -
Table 43: PTO2008-A1 analog audio outputs connector - 'X4'