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3.7 Recommended Network Layouts and Limitations
Backsense
®
System installation must adhere to a strict network topology to ensure reliable
communications between the BS-OSD-022 ECU and BS-9000 radar sensor(s).
The network topology must represent a bus featuring 120Ω termination at both ends. The BS-
9000 sensor(s) must be connected to the bus via Network Y-Cable only. The user must not
install any extension cable between the sensor and the Y-Cable. Examples for good and bad
network arrangements are show below:
3.8 Good Network Arrangement
Good Network Topology Includes:
o 120Ω Termination at both ends
o Bus Length limited to 30m between terminations
o Power input position balanced depending on the sensor’s physical
distribution on the bus. This should be optimised to minimise voltage drop
over the cable for each sensor.
o No extension cables installed between the sensor and the Y-Cable. Only
sensor tail cable to Y-Cable is allowed.
Example 1 (Good), host connection at end of bus
Example 2 (Good), host connection in middle of bus
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