SIEMENS
7/23
Siemens IK PI · 2015
Industrial Remote Communication
TeleControl Basic for the stations
MD720 MODEM
7
■
Technical specifications
Article No.
6NH9720-3AA01-0XX0
Product-type designation
MODEM MD720 GSM/GPRS, 2G
Transfer rate
• for GSM transmission
9 600 bit/s
• with GPRS transmission
-
with downlink maximum
54 kbit/s
-
with uplink maximum
42 kbit/s
Interfaces
Number of electrical connections
• for internal network
1
• for external network
1
• for power supply
1
Design of the electrical connection
• for internal network
9 pin Sub D
• for external network
SMA antenna socket (50 ohms)
• for power supply
4-pole terminal strip
WAN connection
Type of mobile wireless network
is supported GSM
Yes
Type of mobile wireless service
is supported
• GPRS
Yes
Operating frequency
for GSM transmission
• 850 MHz
Yes
• 900 MHz
Yes
• 1800 MHz
Yes
• 1900 MHz
Yes
Type of GPRS time slot method
Multislot Class 10
Yes
Supply voltage,
current consumption, power loss
Type of supply voltage
DC
Supply voltage
24 V
Supply voltage
• minimum
12 V
• maximum
30 V
Consumed current maximum
355 mA
Active power loss typical
3.4 W
Permitted ambient conditions
Ambient temperature
• during operating
-20 … +60 °C
• during storage
-25 … +85 °C
Relative humidity at 25 °C during
operating maximum
95 %
Protection class IP
IP30
Design, dimensions and weight
Design
compact
Depth
90 mm
Height
100 mm
Width
30 mm
Net weight
150 g
Mounting type
35 mm DIN rail mounting
Yes
Product functions
management,
configuration
Product function
• CLI
No
• web-based management
No
• MIB support
No
Protocol is supported
• Telnet
No
• HTTP
No
Type of configuration
AT commands
Standards, specifications,
approvals
Standard
• for EMC
EN 61000-6-2, EN 61000-6-4,
EN 55022, EN 55024, EN 301 489-1,
EN 301 489-7
• for hazardous zone
II 3 G Ex nA IIC T4 Gc
• for safety of CSA and UL
UL 60950
• for emitted interference
EN 55022, EN 61000-6-4
• for interference immunity
EN 55024, EN 61000-6-2
Verification of suitability
• CE mark
Yes
Article No.
6NH9720-3AA01-0XX0
Product-type designation
MODEM MD720 GSM/GPRS, 2G
© Siemens AG 2014