Technical Specifications
7-2
PROFIBUS Optical Bus Terminal (OBT)
C79000-G8976-C122-02
Wavelength 640 nm to 660 nm
Permitted FO cable attenuation
(with link power margin)
– for plastic fiber 980/1000
– for PCF fiber 200/230
13 dB
3 dB
Transmission distance with 3dB link power margin
– with plastic fiber 980/1000
with max. 200 dB/km cable attenuation
– for PCF fiber 200/230
with max. 10 dB/km cable attenuation
0.1m to 50m
0 m to 300m
FO connector Simplex / duplex
Electromagnetic compatibility (EMC)
Noise emission Limit class A (EN 55022)
Immunity to static discharge On shield connection and casing: ±6 kV contact di-
scharge (IEC 1000–4–2)
Immunity to high frequency interference 10 V/m at 80% amplitude modulation at 1kHz,
80MHz – 1GHz (ENV 50140; IEC 61000–4–3)
10V/m at 50% on time at 900MHz
(ENV 50 204)
10 V/m at 80% amplitude modulation at 1kHz,
10kHz – 80MHz (ENV 50141)
Immunity to conducted interference
(burst)
On power supply cables and shielded RS 485 LAN
cables: ±2 kV
(IEC 61000–4–4)
Immunity to conducted interference
(surge)
On power supply cables: ±1 kV balanced
On shielded RS 485 LAN cables: ±2 kV unbalanced
(IEC 61000–4–5)
Safety
VDE requirements VDE 0806=EN60950 and IEC950
UL/CSA approval complying with UL1950/CSA950
Climatic conditions
Ambient temperature 0 °C to +60 °C
(IEC 68–2–1, IEC 68–2–2)
Storage temperature -40 °C to +70 °C
(IEC 68–2–14)
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