V.35MT Cisco Physical Loop Back

Started by cralves, Dec 11, 2008, 03:57

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cralves

For checked the V.35 cables and the Wic1T, i need to make a local loop (B3 / Loopback) with a V.35 cable. With the V.35FC (DCE) cable there is no problems, joining this pins:
J2•C-->J2•D (RTS-->CTS)
J2•E-->J2•H (DSR-->DTR)
J2•P-->J2•R (SD+-->RD+)
J2•T-->J2•S (RD- -->SD-)

the result is that the serial interface changes to looped status.
For DTE V.35MT Cable loop back the pins that i join are the next:

J2•C --> J2•D (RTS --> CTS)
J2•F - J2•E --> J2•H (RSLD --> DTR --> DSR)
J2•P --> J2•R (SD+ --> RD+)
J2•T --> J2•S (RD- --> SD-)
J2•V - J2•AA --> J2•U (SCTE+ --> SCT- --> SCR+)

Whit this procedure, the serial interface shows the looped status, there are imput and output packets whitout CRC errors,
I think is ok but if somebody tell me your opinion, I would be grateful because i would like to make sure of it.


V.35 pinouts:
http://www.cisco.com/en/US/products/...801f5d8e.shtml

kapil dev

THIS IS REALLY GOOD JOB.I AM NOT TEST THE SERIAL CABLE IF IT TRUE THIS GREAT REALLY GOOD JOBS
.............

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