- external interfaces
- A-bis side: RSL (emulates BSC-side server)
- Um side: L1CTL to control MS
- PCU side: pcu_socket
- VTY
- CTRL
{% 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="GSM MAC blocks"];
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"]; } %}