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7 technical data of the 12m bus terminal – Siemens SIMATIC NET PROFIBUS User Manual

Page 159

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Passive Components for RS-485 Networks

4-61

PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000

4.7.7

Technical Data of the 12M Bus Terminal

Technical Data of the 12M Bus Terminal

Connector to DTE

9-pin sub-D male connector

Transmission rate

9.6 Kbps to 12 Mbps

Power supply

DC 5 V

±

5%

safety extra-low voltage (SELV) complying with
EN 60950

Current consumption

90 mA at 5 V

Total power dissipation

0.45 W

Value factor

0.1
In operation at 1.5 Mbps along with
RS-485 bus terminal.
(See Section: “Network Configuration”)

Electromagnetic Compatibility

Noise emission
limit class

B complying with EN 55022=CISPR 22

Noise immunity on signal lines

+/– 2 kV (to IEC 801-5 / IEC 1000-4-5, surge)
+/– 2 kV (to IEC 801-4 / IEC 1000-4-4, burst)

Noise immunity to static electricity discharge

+/– 6 kV, contact discharge (to IEC 801-2; ESD /
IEC 1000-4-2)

Noise immunity to high-frequency interference

10 V/m with 80% amplitude modulation at
1 kHz,
80 MHz – 1 GHz (to IEC 801-3 / ENV 50140)
10 V/m 50 % on time at 900 MHz (to ENV
50204)
10 V with 80 % amplitude modulation at 1 kHz
10 kHz – 80 MHz (to IEC 801-6 / ENV 50141)

Climatic Conditions

Operating temperature

0 to 60

°

C

Storage/transport temperature

–40 to 70

°

C

Relative humidity

max. 95% at +25

°

C no condensation