Signal Levels/
Burdens
Signal Rated Input Voltage, DC
5 V 12 V 24 V
V
Imax
6.0 V 15.8 V 31.0 V
V
IHigh
≥4.7 V ≥6.6 V ≥12.5 V
V
ILow
≤1.0 V at
I
ILow
= 0.25 mA
≤1.4 V at
I
ILow
= 0.25 mA
≤1.9 V at
I
ILow
= 0.25 mA
I
IHigh
4.5 mA to 9.4 mA 4.5 mA to 9.3 mA 4.5 mA to 8.7 mA
R
I
890 Ω at V
I
= 4 V 1930 Ω at V
I
= 8.7 V 3780 Ω at V
I
= 17 V
640 Ω at V
I
= 6 V 1700 Ω at V
I
= 15.8 V 3560 Ω at V
I
= 31 V
On-Site Operation Panel for Surface-Mounting Housing (Port H) (Available only for Modular Devices)
The terminal for the on-site operation panel of surface-mounted devices is located on the D-sub 15 interface
(position H). The on-site operation panel of surface-mounted devices with integrated or detached on-site oper-
ation panel is connected to this interface.
User interface Detached on-site operation panel
Connection On the rear side
D-sub 15
Insulation class PELV (according to IEC 60255-27)
Integrated Ethernet Interface (Port J)
This terminal is used to load the device with DIGSI 5 using Ethernet. This terminal also enables IEC 61850
Ethernet communication or communication with another protocol via Ethernet, for example, for connecting
an external RTD unit.
Interface
Integrated Ethernet interface
Connection
(1) LED 1: Yellow
(2) LED 2: Green
Connector type 1 x RJ45
Baud rate 100 Mbit/s
Max. line length 20 m with Ethernet patch cable CAT 6 S/FTP, F/FTP, or SF/FTP
Insulation class SELV (acc. to IEC 60255-27)
Interface design Corresponds to IEEE 802.3, 100Base-TX
Technical Data
6.6 Communication Interfaces
SIPROTEC 5, Hardware Description, Manual 235
C53000-G5040-C002-M, Edition 12.2021
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