Siemens SIMATIC NET PROFIBUS, Owner'S Manual, Page: 159 / 490

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