
DCN Next Generation Open Interface Release 2.4 General
en | 10
Bosch Communications Systems | 2007 February | SRS_INF | Du010933
2. SYSTEM SETUP
To interface with applications present in the CCU, we will use a serial port present on the
CCU (in case of a multi-CCU system, the serial port or the Ethernet port of the master CCU is
used).
The device (PC, embedded controller, etc.) connected to a serial port (or Ethernet port in
case of MCCU) is the second controlling system to the CCU
1
. This device is called remote
controller in the remaining part of the document.
The PC on the top-right in Figure 1 is the DCN NG control PC. A control PC can be
connected via one of the serial ports (as shown in the figure) or via Ethernet (only to a master
CCU in case of a multi-CCU system). The remote controller on the right controls an
application remotely using the serial line of the CCU. This remote controller can be, for
instance, a mimic panel, a computer that controls and presents voting results, etc.
Third parties can build their own remote controller software to serve several SW-applications.
Each SW-application on the remote controller can control the corresponding application on
the CCU using the remote interface protocol.
2.1 Use of serial and TCP/IP port
The communication between the CCU and the remote controller is message based (remote
functions and update notification). The messages are transported as binary streams of bytes.
The remote control interface must be configured according to the specifications in Appendix
A.
1
We assume that the DCN NG Control PC connected to a serial port is the primary controller for the CCU. The
remote controller is then the secondary controller. Only one remote controller is needed to control remotely. Both
controllers may be present and operate concurrent, controlling different parts of the CCU.
RS-232*
CCU
DCN NG
network
DCN NG Control PC
Remote
Controller
ACN
RS-232*
* or TCP/IP over Ethernet in case of MCCU
Figure 1 Hardware configurations remote controls
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