Please use this pin connection below for the ericsson RBS 6102 OMT cable:
Get an Ericsson Ethernet straight through cable and cut one end then solder it in a DB9 female connector as shown below:
5 (DB9) —> 1 (RJ45)
3 (DB9) —> 2 (RJ45)
2 (DB9) —> 3 (RJ45)
8 (DB9) —> 4 (RJ45)
7 (DB9) —> 5 (RJ45)
4 (DB9) —> 6+8 (RJ45)
6+1 (DB9) —> 7 (RJ45)