Siemens SIPROTEC 6MU805 User Manual page 95

HMI
The optional HMI is connected via the 9-pin D-SUB socket.
Table 3-1
Pin No.
1
2
3
4
5
6
7
8
9
USB Interface
The USB interface can be used to establish a connection between the merging unit and your PC. For the com-
munication, the Microsoft Windows USB driver is used which is installed together with DIGSI (as of version
V4.90 SP1 or higher). 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
USB Interface at the HMI
Note
If you connect the HMI to the device via cable, use the USB port of the HMI. In this case, the maximum length
of your USB connecting cable is 2 m.
GPS Interface
Via the SMB socket, you can connect an active GPS antenna (5 V max. 50 mA such as Trimble® Bullet™ III
GPS antenna).
If no GPS interface is available, there is a cover instead.
If you have connected the device to the PC via Ethernet, you will receive status information regarding GPS re-
ception via the EN100 Web page.
PPS/IRIG-B Interface
Via the ST socket, you can connect an active optical IRIG-B (B005, B007, IEE1344)/PPS signal.
PPS/IRIG-B
If no
If you have connected the device to the PC via Ethernet, you will receive status information regarding
reception via the web browser at your device address, for example: http://192.168.10.106/gps.html.
SIPROTEC, 6MU805, Manual
C53000-G1140-C380-5, Release date 06.2018
Socket Assignment
Function
VCC
RxD
TxD
USB D+
GND
GND
-
DET_HMI
USB D-
Assignment of the USB socket
1
VBUS D-
(unused)
interface is available, there is a cover instead.
2 3
D+
Mounting and Commissioning
3.2 Checking Connections
4 Housing
GND Shield
IRIG-B
91