4.2.8 Connecting Auxiliary Equipment
All auxiliary equipment is connected via the AUDIO, AUX and DOORPHONE connectors of the
PowerCPU EE/PowerCPU EE C25 board.
4.2.8.1 Connecting a Please-Wait Message Player
This is connected via the AUDCTRL output (control contact open when idle) and the AUDIN input of
the AUDIO connector.
BUSINESS PROCESSING UNIT
LAN
LAN
CONFIG.
DOORPHONEAUDIO MODULE
MODULE 1
FAN POWER
CPU
MODULE 2
AUX
ISDN T0 1 ISDN T0 2
SLI1/2 &
Mini-MIX
Audio In B
AudCrtl A
Distribution panel
Audio In A
AudCrtl B
Power supply
Audio
Circuit
Control
circuit
PowerCPU EE
4.2.8.1.1 Audio Input Characteristics:
Input impedance : 600 Ohms
4.2.8.1.2 Fuse Characteristics:
• Max. power : 10 W
• Max. voltage : 60 V
• Max. current : 500 mA
The contacts of the alarm and doorphone controls have the same electrical characteristics as
those indicated above.
4.2.8.2 Connecting a Background Music Tuner
This is connected via the AUDIN input of the AUDIO connector.
Distribution panel
Audio In B
Audio In A
Power supply
TUNER
BUSINESS PROCESSING UNIT
LAN
LAN
CONFIG.
DOORPHONEAUDIO MODULE
MODULE 1
FAN POWER
CPU
MODULE 2
AUX
ISDN T0 1 ISDN T0 2
SLI1/2 &
Mini-MIX
PowerCPU EE
4.2.8.2.1 Audio Input Characteristics:
• Input impedance : 600 Ohms
• Input level: access + 4.7 dBr or + 15 dBr
Chapter
4
Powering and connecting the PBX to the customer LAN
8AL91217USAA - Ed. 01 - July 2018 - Installation Manual 50/216
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