Technical Data - Siemens SIMATIC NET MODEM MD720 System Manual

Gprs/gsm modem
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7 Technical Data

Interface X1
Function
Standard
Default speed
Control
Air interface
GSM module
GPRS
Transmit power
Antenna connector SMA / 50 Ohm
Power supply
power consumption typ. 5.5W
Supply voltage
Supply current /
Established GPRS
connection with
data exchange
Fehler! Verweisquelle konnte nicht gefunden werden.
GPRS connections to SINAUT MICRO SC
GSM data calls (CSD 9.600 bps) MTC
SMS sending
RS232 (V.24 / V.28), plug: D-SUB 9 pins
9600 bps
AT commands
GPRS / CSD / Quad band
Up to 2 uplinks / up to 4 downlinks (max. 5 Slots)
GSM 850 MHz (max. 2W), GSM 900 MHz (max. 2W),
DCS 1800 MHz (max. 1W), PCS 1900 MHz (max. 1W)
12 - 30 VDC (24 VDC nominal)
[mA]
1400
1200
1000
800
600
400
200
10
20
30
40
[mA]
1400
1200
1000
800
600
400
200
10
20
30
40
12 V: I
= 265 mA, IBurst = 1,3 A
n
24 V: I
= 109 mA, IBurst = 0,8 A
n
4,62ms Burst repetition rate
I
at 12V
Burst
50
60
70
80
90
100
I
at 24V
Burst
50
60
70
80
90
100
7
[ms]
[ms]
63

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