KLN89B updating cable

Velar, in my aircraft (TB20) I got a KLN90B which has a data socket on the r/h panel. Last year I bought a used cable from someone who upgraded his avionics.

So now I download the new database via the Bendix-King internet site onto my laptop and take it to the hangar to update the GPS. My cable is different from the one Lonestar offers for the 90B. It has a 9 pole female on one side (where I put an USB adapter on) for the laptop and the round jack, like for headsets but a bit smaller to plug into the aircraft socket.

The cable Lonestar offers for the KLN90B is for their docking station Commander 2000K - so you could do the update at home, but you have to take the GPS home with you (+ buy the docking station for 270USD plus freight). I think its the same with the 89B cable. The 89B must be powered for the update. So maybe the best solution is to ask your avionics shop to install a socket in the aircraft and to buy the appropriate cable from Bendix/King. regards

Normally the connector is underneath the panel.

Will I need additional equipment to power the KLN89B if I attempt to update it using this cable in the office?

There is a bench rig you can plug it into, but it isn't cheap and IMHO it's not a good idea to keep pulling the GPS out of the panel, given the method of fixing.

it's a real bargain for USD 750.- but TSOed :-)

That Lonestar site is a great find.

This is quite funny. A TSOd USB connector for charging things.

Hello Velar,

try this

or even better

another one

The cable is detailed in the KLN89B installation manual which can be found with google at a few places like here. See pages 2-57 or 2-59 there.

I suspect the oddball plug may be the same as the KFC225 plug which is detailed here (search for "plug") but the actual connector in your aircraft may be something else. A DB9 is commonly installed too and they are about 10p...

I also have a huge avionics manuals collection so if anybody needs anything, let me know

Another approach may be to get a PC writer for the card(s). I have this and the same or similar may be usable. I have never done the download option, as it needs a laptop to be run with an internet connection in the aircraft, and the Honeywell website is hugely bloated... But a PC writer needs one to have at least 2 cards, so one can swap it right there in the aircraft. Honeywell sell the cards for about $200 but you can find them on Ebay (US avionics Ebay e.g. here).