Connections
USB and RS-232 interface
These interfaces are used for servicing.
Audio interfaces
For the analog audio connection, use a symmetrical cable configuration (2 signal wires +
shielded braiding) with XLR socket. For connection purposes, 3-pole connectors are included
with the audio extension cards. Conductor cross-sections of 0.14 mm² (AWG26) to 1.5 mm²
(AWG16) can be used. Recommended connecting line: Symmetrical cable configuration with
flexible 2 x 0.14 mm² shielding. Although all analog inputs and outputs of the DPM 8016 can
also have asymmetrical configurations, a symmetrical audio connection cable is a better
alternative. With a symmetrical signal design, the shielding in the cable connects all metal
housings, which prevents external disruption signals from entering the audio signal path,
especially buzzing.
Interface to call stations (PCA BUS)
The PROMATRIX CAN Audio (PCA) BUS interface (of a UI-1 universal input module) connects a
DPC 8015 call station with the DPM 8016. This is an 8-pole RJ-45 connector that integrates
the power supply, control interface (CAN bus), and audio interface. The following image
shows the allocation of the PCA BUS jack and the corresponding RJ-45 connector.
Notice!
For CAN (4, 5), AUDIO IN (3, 6), and AUDIO OUT (7, 8), the leads must be twisted as pairs.
8: AUDIO OUT -
2: CAN_GND
4: CAN_H (+)
5: CAN_L (-)
1
8
7: AUDIO OUT +
1: +24V DC
3: AUDIO IN +
6: AUDIO IN -
Figure 6.1: Allocation of the PCA bus interface
Figure 6.2: Allocation of the PCA bus connector
For the PCA BUS interface, the same requirements apply for the used line (length, cross
section, etc.) as for the REMOTE CAN BUS interface (See Section REMOTE CAN BUS, page
19).
6
DPM 8016
Connections | en
17
Operation manual
16-Dec-13 | 02 | F01U259190