I believe the term Cisco used to use was a "rollover cable", as in the old days they used to ship a blue cable with RJ45 on both ends, and provide both a DB9 and DB25 serial to RJ45 plug. The cable was flat, so pinout on THAT cable was 8-1 7-2 6-3 5-4 etc. The "magic" pinning was all done in the plug.
These days, the cable (if provided) assumes nobody uses DB25 any more, and has integrated the rollover cable and plug as a single lower-cost unit; but it really isn't "standard" and never was TP.
Of passing interest:
- Some other non-cisco devices DO have an RJ-45 serial interface, and the Cisco blue cable may work.
- If it isn't long enough, it's easy enough to get a RJ-45 coupler and normal Ethernet cable (even up to 40 feet or so if necessary) so you can have your laptop on a desk or whatever rather than precariously balanced in a tight communications room.
