4.2
PMX-CSK interfaces
PCA BUS INTERFACE
The PROMATRIX CAN Audio (PCA) BUS interface is used for connecting the
DPC 8015 CALL STATION or PMX-CSK CALL STATION KIT to the PROMATRIX
8000 system.
The 8-pole RJ-45 connector provides power supply, control interface (CAN
bus), and audio connections. The microphone terminal has to be
connected to a corresponding RJ-45 wall outlet using the supplied
connection cord (3 m). The following figure shows the pin-assignment of
PCA BUS socket and RJ-45 network cable.
HINT: For wiring CAN, AUDIO IN or AUDIO OUT a twisted wire pair must
be used in each case.
Illustration 4-3: Assignment of PCA bus port
1
8
1: +24V DC
2: CAN_GND
3: AUDIO IN +
4: CAN_H (+)
5: CAN_L (-)
8: AUDIO OUT -
7: AUDIO OUT +
6: AUDIO IN -
