Antennas - Siemens SCALANCE MUM853-1 Operating Instructions Manual

6.4

Antennas

The SCALANCE MUM853-1 has 4 antenna ports of the type SMA female.
Note
Use the antennas from the range of accessories for the device. You will find more detailed
information in "Accessories (Page 26)". If you use a different antenna, there is no guarantee that
the device will function according to the specification.
You can either connect an external antenna directly to the device or connect it with a flexible
connecting cable.
Minimum clearance to the device
The device may only be operated when the distance between the device (or antenna) and user
is at least 20 cm.
Notes on lightning protection
Danger due to lightning strikes
Antennas installed outdoors must be within the area covered by a lightning protection system.
Make sure that all conducting systems entering from outdoors are protected by lightning
protection electrical bonding.
When implementing your lightning protection concept, make sure you adhere to the
requirements of the VDE 0182 or IEC 62305 standards.
• A suitable lightning conductor LP798‑1N (article no. 6GK5798-2LP00-2AA6) is available in
the range of accessories of SIMATIC NET Industrial WLAN:
Depending on the connector, an adapter cable is required to connect to SMA.
Danger due to lightning strikes
Installing this lightning protector between an antenna and a SCALANCE M device is not
adequate protection against a lightning strike. The LP798-1N lightening protector only works
within the framework of a comprehensive lightning protection concept. If you have questions,
ask a qualified specialist company.
SCALANCE MUM853-1
Operating Instructions, 03/2023, C79000-G8976-C650-05
CAUTION
WARNING
WARNING
Connection
6.4 Antennas
53