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[dsub-buchsen-20070111, 1, en_US]
Figure 3-18
USB Interface
The USB interface can be used to establish a connection between the protection device and your PC. For the
communication, the Microsoft Windows USB driver is used which is installed together with DIGSI (as of version
V4.82). The interface is installed as a virtual serial COM port. We recommend the use of standard USB cables
with a maximum length of 5 m/16 ft.
Table 3-2
Pin-No.
USB
Connections at Port A
Protection data interface optical fiber cable with LC duplex connector.
The order numbers of the exchange modules are listed in the Appendix in Section
Accessories, Accessories.
Connections at port B
Table 3-3
Pin-No.
RS232 RS232 time
synchroni-
zation
1
Shield (with shield ends electrically connected)
2
RxD
–
3
TxD
–
4
–
–
5
GND
GND
6
–
–
7
RTS
–
8
CTS
CTS
9
–
–
1)
Pin 7 trägt auch bei Betrieb als RS485-Schnittstelle das Signal RTS mit RS232-Pegel. Pin 7 darf deshalb nicht anges-
chlossen werden!
2)
Für Zeitsynchronisation über RS232 ist die Steckbrücke X11 in Stellung 1-2 nötig.
SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018
Serial interface at the device bottom
Assignment of the USB socket
1
2
VBUS
D-
(unused)
Assignments of the port B sockets
RS485
2)
–
A/A' (RxD/TxD-N)
B/B' (RxD/TxD-P)
–
C/C' (GND)
–
+5 V ((max. load
–
1)
B/B' (RxD/TxD-P)
A/A' (RxD/TxD-N)
–
3
D+
Profibus DP,
Modbus
RS485
RS485
DNP3.0
RS485
–
–
A
CNTR-A (TTL)
RTS (TTL
level)
C/C' (GND)
GND1
VCC1
<100 mA)
–
–
B
–
–
Mounting and Commissioning
3.2 Checking Connections
4
Housing
GND
Shield
A Ordering Information and
Ethernet
IEC 60870–5–
103
EN 100
redundant
Tx+
B/B' (RxD/TxD-P)
Tx–
A/A' (RxD/TxD-N)
Rx+
–
—
–
—
–
Rx–
–
—
–
—
–
not available
not available
223
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