d&b D12 Hardware - Manual (Page 16)

5.1.3. REMOTE [10]
1......8 1......8 Pin 1 n.c.
Pin 2 n.c.
Pin 3 n.c.
Pin 4 CAN_H
Pin 5 CAN_L
Pin 6 n.c.
Pin 7 RIB Data +
Pin 8 RIB Data -
Shield CAN Ground
1 8 . . . . . .
Fig. 10: Pin assignment for remote control
(RJ 45)
The D12 is fitted with a 2-wire serial remote control interface, (2 x
RJ 45) carrying both the RIB and CAN-Bus signals. All pins of both
connectors are wired in parallel allowing either to be used as the input
or output. Where remote control networking conforms to a "Bus or Ring
topology" one connector is used for the incoming signal and the second
connector allows for direct connection to another device (daisy
chaining) or for terminating in the case of a CAN-Bus network. The
interface connections for the RIB (pin 7/8) are opto-coupled, while the
connections for the CAN-Bus (pin 4/5) are hard wired to common
ground (protective earth).
Pin Signal Remark
1 -
2 -
3 -
4 CAN_H CAN high bus line (active high)
5 CAN_L CAN low bus line (active low)
6 -
7 RIB Data +
8 RIB Data –
Shield GND CAN Ground
Tab. 4: RJ45 pin assignment on d&b devices
IMPORTANT! Regarding the CAN-Bus network shielded cables and shielded RJ45
connectors must be used while the cable shielding must be connected to
both sides of the RJ45 connector as the "CAN Ground" is routed via
the cable shielding.
Note: A detailed description of remote control via dbCAN (CAN-Bus) is given
in the technical information TI 312 (d&b code D5312.E.).
5.1.4. SERVICE [11]
Fig. 11: SERVICE connector (D-SUB-9)
The D-SUB-9 SERVICE interface (RS 232 female) allows operating
software and loudspeaker configuration updates to be loaded into the
unit.
IMPORTANT! To connect the computer to the SERVICE connector a standard RS-232
connection cable (D-SUB-9 serial cable female/male - 1:1) must be
used (serial extension cable).
Pin Signal Remark
2 RxD
3 TxD
4 DTR
5 GND Signal ground
7 RTS
Tab. 5: D-SUB-9 pin assignment on d&b devices
D12 Amplifier, Hardware manual (4.9 EN) Page 16 of 28