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Siemens 6GK7242-7KX30-0XE0 User Manual

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CP 1242-7 
Operating Instructions, 03/2012, C79000-G8976-C247-03 
83
 
Technical specifications 
7
 
Table 7- 1 
Technical specifications of the CP 1242-7 
Technical specifications 
Order number 
6GK7 242-7KX30-0XE0 
Wireless interface 
Amount 
1 
Design 
SMA socket 
Antenna connector 
Nominal impedance 
50 ohms 
Frequency bands 
GPRS 
850, 900, 1800, 1900 MHz 
GSM 850, class 4 
+33 dBm ±2dBm 
GSM 900, class 4 
+33 dBm ±2dBm 
GSM 1800, class 1 
+30 dBm ±2dBm 
Maximum transmit power 
GSM 1900, class 1 
+30 dBm ±2dBm 
GPRS 
Properties 
Multislot class 10 
device class B 
coding scheme 1 to 4 (GMSK) 
SMS 
Properties 
Mode outgoing: MO 
service: point-to-point 
Electrical data 
Power supply 
24 VDC 
Permitted range 
19.2 ... 28.8 V 
Design 
Connector with terminal block, 3 terminals 
Cable cross-section 
  Minimum 
  Maximum 
 
  0.14 mm
2
 (AWG 25) 
  1.5 mm
2
 (AWG 15) 
Max- tightening torque of the screw 
terminals 
0.45 Nm (4 lb-in) 
External power supply 
Electrical isolation: 
Power supply unit to internal circuit 
 
710 VDC for 1 minute 
From 24 VDC 
100 mA 
Current consumption (typical) 
From the S7-1200 backplane bus 
0 mA 
From 24 VDC 
2.4 W 
Effective power loss (typical) 
From the S7-1200 backplane bus 
0 W