Siemens 7XV5662-0AD00/DD Directions For Use Manual page 52

English
D-sub socket
The 9-pole D-sub socket is used for the communication between a PC and one or several
remote protection devices via the CC-2M. You can use the 7XV5100-4 DIGSI configuration
line for connecting the CC-2M to the PC via RS232. For a connection via RS485, Siemens
recommends using shielded bus cables of the type 7XV5103. The RS232/RS485 interface
is not shielded and therefore, it is only designed for the data transmission during commissio-
ning.
RS232 (predefined)
Pin 2
Rx (input)
Pin 3
Tx (output
Pin 5
Figure 22 D-Sub-socket at the CC-2M
The following figure shows a typical connection plan via the RS232 interface. A gender
changer is required for the opposite side.
7XV5100-4
RS232
Cable
DIGSI
PC
Figure 23 Connection plan via RS232 interface
If the RS485 interface is used, the CC-2M works as an RS485 repeater in a single-master
RS485 bus system and therefore, it can connect 2 RS485 busses. For this, the bus load
resistors on both ends of each RS485 bus must be activated. In the CC-2M, jumpers are
provided for the activation of the bus load resistors. The following figure shows a typical
connection plan via the RS485 interface.
52
Pin 3
Pin 8
Pin 5
GND
RS232 E1 / T1
CC-2M
7XV5662-0AD00/DD, 7XV5662-0AD01/DD
RS485
A
B
GND
Communication
E1 / T1
network
CC-2M
7XV5100-4
Gender
RS232 RS232
Changer
Cable
Protection
C53000-B1174-C205-2
Device