Communication Interfaces - Siemens Reyrolle 7SR5 Manual

Technical Data

4.5 Communication Interfaces

4.5

Communication Interfaces

USB Interface (Fascia)
A USB connection type B is provided for local connection to a PC on the device front fascia. A cover provides
environmental protection.
USB
Connection (USB type B)
Insulation class
RS485 Data Communication Interface
Physical layer
Connection (RS485)
Recommended cable
Recommended external
terminating resistor
Connectors
[dw_connection2wire, 1, en_US]
Figure 4-1
36
User interface
PELV (Protective Extra Low Voltage) (IEC 60255‑27)
RTU
Last relay
Connection – 2 Wire: OV (System Common) Not Connected
Electrical
120 Ω screened twisted pair (STP) cable
120 Ω, 0.5 W
120 Ω, 0.5 W
Pin crimp
Reyrolle 7SR5, Hardware, Manual
C53000-T7040-C013-1, Edition 05.2021