1000BASE-T/100BASE-TX/10BASE-T Physical Layer Compliance Tests Manual
Intel Confidential 91
10Base-T RD Receiver Circuit Signal Acceptance Test (BER)
be decreased to prevent this condition. Alternatively, the test operator can try to make sure the
receive unit is always in a faster PC than the transmit unit.
Example 23-1. BER Calculation Example
If 499,995 good frames were received and 500,000 good frames were transmitted, then for 1,024
byte frames and zero missed packets the BER would be as follows:
BER = ((500,000 - 0) - 499,995)/(500,000 * 1,024 * 8) = 1.22 x 10^-9
This example passes because the resulting BER is less than 1 x 10
-8
, which is the maximum
specification.
It is recommended that the test operator to obtain and read a copy of the gigconf.exe PHY
Conformance & BER Test User’s Guide.
To Next Page
Loading...
