37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
e1-prbs-test - Utility to test for bit errors on E1 lines using DAHDI
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======================================================================
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e1-prbs-test can be used to test for bit errors in E1 transmission
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lines. It consists of a sender and a receiver, which should be used
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on either end of the E1 line.
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Transmitter and receiver can be on the same machine, or on different
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machines.
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The code currently works directly on DAHDI, so only DAHDI-supported E1
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cards are supported at this point.
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The test works by sending timeslot-specific PRBS sequences of 512 bit
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(64byte) length on the transmit side, and by correlating to those PRBS
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sequences on the receiver side.
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The use is relatively simple:
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For the A-side, assuming you would want to use DAHDI span 1:
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e1-prbs-test /dev/dahdi/chan/001
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For the B-side, assuming you would want to use DAHDI span 2:
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e1-prbs-test /dev/dahdi/chan/002
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The test will run indefinitely.
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If you'd like to get an interim report, send a SIGHUP to
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e1-prbs-test.
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If you'd like to stop, simply press Ctrl+C.
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There is a two-stage shut-down process. When you press Ctrl+C for
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the first time, the report is printed, but transmission continues. At
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the second Ctrl+C, the process terminates. You must press Ctrl+C for
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the first time on both A and B side, before pressing it the second time
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on the A-side in order to get correct results.
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