System information

6
2.4. SIM Card Reader
The SIM card reader for 3 V and 1.8 V SIM cards is located on the front panel of the
modem. For putting the modem into operation it is necessary to insert an activated SIM card
with unblocked PIN in the reader.
1. Make sure that the modem is not being power-supplied.
2. Press the small yellow button next to the reader to eject the reader holder.
3. Insert the SIM card in the reader holder and slide it in the reader.
2.5. Power Supply
ER75i requires +10 V DC to +30 V DC supply. The protection against reversal of
polarity without signaling is built in the modem.
The power consumption during receiving is 1W. The peak power consumption during
data sending is 3.5W. For correct operation it is necessary that the power source is able to
supply a peak current of 500mA.
2.6. Technical parameters
GSM modul SIEMENS MC75
Complies with standards EN 301 511
EN 301 489-1 V1.6.1
EN 301 489-7 V1.3.1
EN 55 022:2001
EN 61 000-3-2:2001
EN 60 950:2001
Frequency bands EGSM850, EGSM900, GSM1800 a
GSM1900 on the basis of VO-R/1/07.2005-
14
Transmit power Class 4 (2W) for EGSM850
Class 4 (2W) for EGSM900
Class 1 (1W) for GSM1800
Class 1 (1W) for GSM1900
Temperature range operation
storage
-20
o
C až +55
o
C
-40
o
C až +85
o
C
Supply voltage 10 až 30 V DC
Consuption reception
transmission
1 W
3,5 W
Dimensions 30x90x102 mm (attachment to DIN bar
35mm)
Weight 140 g
Antenna connector FME – 50 Ohm
User interface ETH
USB
PORT1
Ethernet – connector RJ45 (10/100 Mbit/s)
USB 2.0 – connector USB-B
Optional – connector RJ45 (150 b/s –
115200 b/s), RS232, RS485, M-BUS