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# BTS_Tests.ttcn
* external interfaces
* A-bis side: RSL (emulates BSC-side server)
* Um side: L1CTL to control MS
* PCU side: pcu_socket
{% dot bts_tests.svg
digraph G {
rankdir=LR;
{ rank=same; BTS, BSC};
BTS [label="IUT\nosmo-bts-trx",shape="box"];
ATS [label="ATS\nBTS_Tests.ttcn"];
BSC [label="osmo-bsc\nOML only"];
BTS -> fake_trx [label="bursts"];
fake_trx -> trxcon [label="bursts"];
trxcon -> ATS [label="bursts"];
BTS -> BSC [label="A-bis OML"];
BTS -> ATS [label="A-bis RSL"];
ATS -> BTS [label="pcu_sock"];
ATS -> BSC [label="VTY"];
ATS -> BTS [label="CTRL"];
}
%}
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