Electrical Connections; Wireless Interface - Siemens S7-1200 TELECONTROL Operating Instructions Manual

2.3

Electrical connections

2.3.1

Wireless interface

Wireless interface for the mobile wireless network
An extra antenna is required for communication in the mobile wireless network. This is
connected via the SMA socket of the CP. The SMA socket is located behind the lower front
cover of the CP.
You will find the antenna permitted in the section Antenna (Page 125).
Power supply
The 3-pin socket for the external 24 V DC power supply is located on the top of the module.
The matching plug ships with the product.
You will find the pin assignment of the socket in section Pin assignment of the socket for the
external power supply (Page 115).
Figure 2-2
More detailed information on the electrical connections
For technical information on the electrical connections, refer to the section Technical
specifications (Page 113).
CP 1242-7 GPRS V2
Operating Instructions, 10/2016, C79000-G8976-C311-02
Socket for the 24 V DC power supply
LEDs and connectors
2.3 Electrical connections
27