Siemens SIMATIC NET Operating Instructions Manual page 23

Use case 2: Two SCALANCE XC100-4OBR devices are installed one after the other
Note
Due to the available budget, arranging several bypass relays in series is possible only for
SCALANCE XC100-4OBR (single mode).
Normal operation
In normal operation, the network interfaces of the bypass relays (P1 and P2) are connected
to the corresponding end device interfaces (P1` and P2`).
The end devices 1 and 2 are connected via two bypass relays. Both bypass relays are in
normal mode.
If two end devices are connected via two bypass relays, the attenuation in the send and
receive direction is the same.
Variant
SCALANCE
XC100-4OBR
(single mode)
SCALANCE XC100-4OBR
Operating Instructions, 10/2013, C79000-G8976-C297-02
TAP function
Without TAP function
With TAP function
Connection
End device 1 → end device 2
End device 2 → end device 1
End device 1 → end device 2
End device 2 → end device 1
Description of the device
3.5 Installation guide
Attenuation
at 0 °C to 60 °C
2.0 dB
6.5 dB
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