06-12-2008 12:33 PM
Hi,
I am wondering exactly what cables/adapters work best to connect a DLINK DFM-560e modem (or any modem that has a DB9 adapter, NOT a DB25) to the RJ45 aux port of a 2800 series Cisco router for OOB access. Thanks.
06-12-2008 12:50 PM
FYI - I see various documentation on the cisco website describing cabling required for connecting modem with DB25. However, I can't find ANYTHING for connecting modem with DB9. Thanks again.
06-13-2008 09:57 AM
Several years ago I made my own adapter to connect the aux port on a c1710 with a Global Village modem (used with my first Mac in 1994).
You can but an RJ45 to DB-9 adapter at a local electronic supply store and wire it to your needs.
The attached .pdf file show's the pin-outs I used.
Note that the table shows "both" RJ pins 4 and 5 tied to DB pin 5 (GND), this is NOT an error in the table.
Your aux port is probably the same as mine, but you might want to check the Cisco docs to be sure (i.e.: same signal on same pin).
Good luck.
06-15-2008 12:37 AM
I've always had to make them.
Option 1: You will need an old-school flat console rollover cable with RJ-45 on both ends and an adapter hood with male DB-9 to RJ45 pinned as follows:
Color RJ-45 DB-9 Function
Blue 1 8 CTS
Orange 2 6 DSR
Black 3 2 RD
Red 4 5 Ground
Green 5 5 (see note) Ground
Yellow 6 3 TD
Brown 7 4 DTR
White 8 7 RTS
Note: both of these connect to ground, strip and solder or slide alongside the seated pin.
Option 2: Use a new-style console cable and a male-male gender-changer for the DB-9. Cut off the RJ-45 from the console cable and crimp a new one on with the pins facing the opposite way (undo the rollover).
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