Bosch DCN Next Generation Manuale Utente Pagina 11

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DCN Next Generation Open Interface Release 2.4 General
en | 11
Bosch Communications Systems | 2007 February | SRS_INF | Du010933
2.2 Requirements
As mentioned above the remote controller can be connected to a serial port of the CCU and the
TCP/IP port of the NCO. For the remote controller the following hardware requirements are needed
for the systems
2
:
Single CCU system (LBB4100/00):
This type of CCU has 2 serial ports. An RS-
232 cable with 1 to 1 wiring (RS-232
extension cable, see Figure 2) is used to
connect the CCU to the remote controller.
Note that these CCUs use hardware
handshaking with the CTS and RTS signals.
All other signals are internally chained
together in the CCU to form the appropriate
signals for the remote controller.
The serial port settings used for the communication on a single CCU system are
described in Appendix A.1.
Multi CCU system (LBB4501/00):
This type of CCU has 1 TCP/IP port. An UTP or STP cable is used to connect the
master CCU-NCO to the remote controller.
The TCP/IP port number used for the communications is described in Appendix A.2.
2.3 Hardware connection
2.3.1 CCU
The hardware connection is made by connecting the remote controller to the CCU by using a
serial cable as described in §2.2 (dependant of the system used). The hardware connection
is also shown in Figure 1. The maximum cable length between the CCU and the remote
controller may be approximately 2 meter. When longer distances are needed we advise the
use RS422 or Current Loop.
2.3.2 NCO
The hardware connection between the NCO and remote controller is made by using an UTP
or STP cable. The maximum cable length between the NCO and the remote controller is 100
meter. When longer distances are needed we advise the use of a repeater which ensures the
transmission between two systems.
2
Assumed is that both sides of the cable are equipped with RS-232 9-pole D-connectors for serial
communication.
1.
2.
3.
4.
5.
6.
7.
8.
9.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Male (CCU)
Femal
e
CD
Rx
Tx
DTR
GND
DSR
RTS
CTS
R
I
C
D
R
x
T
x
DT
R
GN
D
DS
RT
S
CT
S
R
I
Figure 2 1 to 1 RS232 cable
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