Should the Stub Ports be Terminated?
Posted on June 10, 2009
Filed Under FAQ |
In a lab application, unused stub ports on the coupler need not be terminated since the stubs have higher impedance than the bus. A high-impedance terminator (1000 to 3000 ohms) is sometimes used in vehicle applications to simulate a future load from an unspecified device. In both cases, an RFI cap over the unused stub is a deterrent to interference and/or dust.
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