Technical Data
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem (07/2002)
6-7
6.2.4 General Data
Power supply
Nominal: DC 24 V
Permitted range: 18 .. 32 V
Ripple U
SS:
max. 3.6 V
Power consumption: Typically 100 mA
Polarization protection: Yes
Mechanical Data
Housing dimensions (H x W x D): 125 x 80 x 120 mm
Weight: Approx. 0.3 kg
Mounting: Can be snapped on a S7-300 mounting
rail or using adapter 6NH7760-0AA on a
35 mm standard rail
acc. to DIN 46
277
Line cross section (screw terminals): 0.25 .. 0.75 mm
2
(including core end ferrules)
Ambient
Temperature
Operation: 0
.. +60°C
Storage/Transport: -40
.. +70°C
Humidity: Max. 95%, no condensation
Protection type: IP 20 acc. to DIN 40050
Air pressure
Operation: Up to 2
000 m at msl
Storage/Transport: Up to 3
500 m at msl
CE Label
Interference immunity: Conform to EN 60870-2-1 : 1996
Emitted interference: Conform to EN 55022 : 1998
(radio interference level B)
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