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1. 14. 2. 15. 3. 16. 4. 17. 5. 18. 6. 19. 7. 20. 8. 21. 9. 22. 10. 23. 11. 24. 12. 25. 13. OST (Newbridge) X25 Switch Technical Info.: PASS-8 & PASS-20. DTE : DB25 view on pins side. Pin out of Serial cable from console port (RJ45) on CPU Card
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1 14 2 15 3 16 4 17 5 18 6 19 7 20 8 21 9 22 10 23 11 24 12 25 13 OST (Newbridge) X25 Switch Technical Info.: PASS-8 & PASS-20 DTE: DB25 view on pins side Pin out of Serial cable from console port (RJ45) on CPU Card DCE: RJ45 <--> DTE: DB25 male RS232 (view on pins side) TxD RJ45-6 RxD RJ45-5 DCE: RJ45 view on golden plate pins side RTS RJ45-8 CTS RJ45-7 DSR nc: Not Connected Ground RJ45-4 NOTE1 : notice the internal loopback DTR<-> DSR on DTE side; these both signals are not connected and managed on DCE side. NOTE2 : The DCE doesn't manage the CTS(while connected); so the hardware flow control RTS/CTS is not usable. ==> use software XON/XOFF flow control instead. DTR CD RJ45-2 1 2 3 4 5 6 7 8 nc nc