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msc {
bts [label="BTS"], bsc [label="BSC"];
bts => bsc [label="TCP Connect (Port 3002, OML)"];
bts box bsc [label="IPA CCM Identification (Port 3002)"];
bts <= bsc [label="OML Configuration of BTS via OML"];
...;
bts <= bsc [label="OML (TRX=0) IPA RSL CONNECT"];
bts => bsc [label="TCP Connect (Port 3003, RSL, TRX 0)"];
bts box bsc [label="IPA CCM Identification Port 3003"];
bts <= bsc [label="RSL BCCH filling (System Information)"];
bts <= bsc [label="RSL SACCH filling (SI 5/6)"];
...;
bts <= bsc [label="OML (TRX=1) IPA RSL CONNECT"];
bts => bsc [label="TCP Connect (Port 3003, RSL, TRX 1)"];
bts box bsc [label="IPA CCM Identification (Port 3003)"];
bts <= bsc [label="RSL SACCH filling (SI 5/6)"];
...;
bts <= bsc [label="OML (TRX=N) IPA RSL CONNECT"];
bts => bsc [label="TCP Connect (Port 3003, RSL, TRX N)"];
bts box bsc [label="IPA CCM Identification (Port 3003)"];
bts <= bsc [label="RSL SACCH filling (SI 5/6)"];
}
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