Siemens SIMATIC S7 System Manual page 747

A.10.2.1 CP 1242-7
Table A- 152 Technical specifications of the CP 1242-7
Technical specifications
Order number
Wireless interface
Antenna connector
Nominal impedance
Wireless connection
Maximum transmit power
GPRS
SMS
Permitted ambient conditions
Ambient temperature
during storage

during transportation

during operation with a vertical installation (DIN rail

horizontal)
during operation with a horizontal installation (DIN rail

vertical)
Relative humidity at 25 °C during operation, without
condensation, maximum
Degree of protection
Power supply, current consumption and power loss
Type of power supply
Power supply / external
minimum

maximum

Current consumption (typical)
from 24 V DC

from the S7-1200 backplane bus

Effective power loss (typical)
from 24 V DC

from the S7-1200 backplane bus

S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
6GK7 242-7KX30-0XE0
SMA socket
50 ohms
GSM 850, class 4: +33 dBm ±2dBm

GSM 900, class 4: +33 dBm ±2dBm

GSM 1800, class 1: +30 dBm ±2dBm

GSM 1900, class 1: +30 dBm ±2dBm

Multislot class 10
device class B
coding scheme 1...4 (GMSK)
Mode outgoing: MO
service: point-to-point
-40 °C to 70 °C

-40 °C to 70 °C

0 °C to 55 °C

0 °C to 45 °C

95 %
IP20
DC
24 V
19.2 V

28.8 V

100 mA

0 mA

2.4 W

0 W

553BTechnical specifications
A.10 Communication interfaces
747