F 150 4WD V8-4.6L VIN 8 (2010)
Network Termination And Gateway Function
The Controller Area Network (CAN) uses 120 ohm resistors across the data (+) and data (-) at each end of the network main circuit branch, or
"backbone", to improve communication reliability. Typically, the 2 termination resistors are located inside modules referred to as "termination modules".
With 2 termination modules on each network, the 120 ohm resistors are arranged in a parallel circuit configuration which makes the total network
impedance, or total resistance, 60 ohms.
Network termination improves bus message reliability by:
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stabilizing bus voltage.
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eliminating electrical interference.
The Instrument Cluster (IC) is the gateway module, translating messages on the HS-CAN to the MS-CAN and vice versa. This function allows a message
to be distributed throughout both networks.
