This document will provide instruction of how to create an EX90 console cable and console into a unit.
There may be situations where consoling into an EX90 can solve an issue that is not related to hardware.
A console cable for the EX90 is not provided by default or readily available for purchase, but, one can be assembled relatively easy.
Gather the Necessary Tools and Equipment
RS232 to TTL/CMOS converterAlldav.com sells the one used here. Cisco does not recommend or endorse Alldav specifically.
DB9 Enclosure Several options are available for the enclosure. This one is being used here.
Cable w/RJ45 connector on one end Any type of cable with an 8P8C (RJ45) connector could used as long as pins 1,2,7 & 8 are connected. A standard RJ45 cable is being used here.
You will also need wire strippers (not shown) and coudl need other ancillary tools such as a screwdriver.
Prep the Cable
Strip the sheathing from the wires that correspond to pins 1,2,7& 8.
Connect the RS232 to TTL/CMOS converter
Connect the RS232 to TTL/CMOS converter to the cable and solder the connections.
Note: The colors used in the wiring diagram don't correspond to the color of the actual wires.
Cable with RS232 to TTL/CMOS converter connected.
Install the Enclosure
Cable with enclosure installed.
The EX90 console cable is now complete.
Make a Console Connection
Locate the Console Port
The EX90 console port is an 8P8C (RJ45) connection and is located on the bottom left corner of the unit.
Connect to the Console Port
Plug the 8P8C (RJ45) end into the console port.
You'll have to lean the unit forward to plug the cable in. It might be a little awkward to do alone. If someone else is available, ask for their assistance. As a last resort, lay the unit down. Ensure you have something soft (like a towel) to lay the unit on.
Connect the DB9 to a USB serial adapter and connect to a laptop/PC. .
Configure a Terminal Emulator Session
Configure your terminal emulator with the following parameters.
The example uses HyperTerminal forWindows; configuring your terminal emulator may vary slightly.
. You should see a login prompt:
This completes making an EX90 console and connecting to the console port.
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