Stp Transceiver; Stp991-1 - Siemens SIMATIC NET SFP Operating Instructions Manual

Properties
Receiver input
* Depending on the cable used, you can find additional information in the "Industrial Ethernet / PROFINET
)
Passive network components" System Manual, see also section "Introduction", paragraph "Additional
documentation".
8.5

STP transceiver

ST/BFOC connectors
The attachment to Industrial Ethernet uses ST/BFOC connec‐
tor technology (Straight Tip/Bayonet Fiber Optic Connector).
8.5.1

STP991-1

Properties
Transmission mode
Transmission rate
Transmission medium
Light source
Wavelength
Cable length (max.) *
Transmitter output (optical)
Receiver input
*) Depending on the cable used:
• If you are using at least OM1 fibers (attenuation ≤ 1.5 dB/km, bandwidth length product ≥
500 MHz*km), you can reach a cable length of up to 3 km.
• When are using fibers with attenuation values ≤ 1 dB/km, you can reach a cable length of up
to 5 km.
You can find additional information in the "Industrial Ethernet / PROFINET Passive network
components" System Manual, see also section "Introduction", paragraph "Additional
documentation".
Transceiver SFP/SFP+/SCP/STP
Operating Instructions, 10/2023, A5E02630804-18
Sensitivity min.
Input power max.
100Base-FX complying with IEEE 802.3
100 Mbps (Fast Ethernet)
Multimode fiber-optic cable
LED/Class1-LASER "Eye safe"
1300 nm
At 50 µm fiber core diameter
)
At 62.5 µm fiber core diameter
Minimum
Maximum
Sensitivity min.
Input power max.
-19 dBm
-3 dBm
At 50 μm
At 62.5 μm
Technical data
8.5 STP transceiver
3 km
3 km
-24 dBm
-20 dBm
-14 dBm
-31 dBm
-12 dBm
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