Bosch PAVIRO PVA-4CR12 - Call Station

22 en | Connection PAVIRO Controller
2022-11 | 07 | F01U306900
User manual
Bosch Security Systems
– Swapped zones: Swapped zones cannot be found/detected by impedance measurement,
if they have approximately the same load.
– Single pole connections between two zones: Single-pole connections lead to increased
crosstalk when one of the zones becomes active and/or when both zones distribute a
different signal. This results in incorrect impedance values being measured. This fault
cannot be detected by the ground fault detection and/or impedance measurement.
– Parallel connection of two or more zones: In this case two amplifier channels with
different signals or one amplifier channel and the impedance measurement can be
connected in parallel. This fault cannot be detected by the ground fault supervision and/
or impedance measurement, as the impedance reference values may already have been
set incorrectly.
– Crossed zones: A wire from a certain zone has been swapped with a wire from another
zone. This fault cannot be detected by the ground fault detection and/or impedance
measurement, as the impedance reference values may already have been set incorrectly.
6.3 Call station
The four Call STation (CST) BUS ports connect call stations with the controller. This are 8-
pole RJ-45 ports that integrate the power supply, control interface (CAN bus), and audio
interface. Every CST BUS supports up to 4 call stations. In total 16 call stations can be
connected to one controller.
i
Notice!
It is mandatory to use shielded twisted pair cables for connecting: CAN (4, 5), AUDIO
CONTROLLER TO CALL STATION (3, 6) and AUDIO CALL STATION TO CONTROLLER (7, 8).
8:
2:
4: CAN_H (+)
5: CAN_L (-)
1 8
7:
1: +24V DC
3:
6:
AUDIO CALL STATION TO CONTROLLER -
AUDIO CALL STATION TO CONTROLLER +
AUDIO CONTROLLER TO CALL STATION -
AUDIO CONTROLLER TO CALL STATION +
GND (CAN_GND)
Figure6.5: Pin assignment of CST BUS port