[Elecraft] Convert a KXUSBa cable to KUSB

[Andy Durbin]

I don't know these cables but I would like to add a caution.   Some Elecraft 
"RS-232" interfaces are true RS-232 (voltage swings greater than +/- 8 volts) 
and others are TTL (voltage swings between 0 V and 5 V).   Be sure you know 
what you are connecting to what.   Some of the receivers are designed to accept 
either TTL or true RS-232 but perhaps not all of them are.  Driving true RS-232 
into a TTL receiver may let the smoke out.

I'd suggest reviewing the schematics before cutting and splicing.

Andy, k3wyc
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Re: [Elecraft] Convert a KXUSBa cable to KUSB

[Nr4c]

A DB15 is not going to connect to the DE 9 on the back of the radio.  A DB15 is 
a much larger connector. 

Also, converting the KXUSB to use on a K3 is not going to provide all the 
signals that the KUSB has.  No RTS/DTR. 

Sent from my iPhone
...nr4c. bill


> On Jul 17, 2020, at 9:29 AM, Ken Winterling  wrote:
> 
> Bill,
> 
> I haven't looked into the electronic validity of what you are asking but I
> would recommend building an adapter with a female jack and DB-15 vs cutting
> off a working connector.
> 
> Ken
> WA2LBI
> 
> 
> 
>> On Fri, Jul 17, 2020 at 9:21 AM Bill Cotter  wrote:
>> 
>> Somehow in the entropy of the universe and my cluttered shack/shop,
>> I have managed to lose my KUSB cable for my K3. I found the earlier
>> (silver) cable, but it doesn't have the FTDI chip and won't work
>> with Win-10. In the process of searching for the KUSB I have
>> managed to unearth two KXUSBa cables for my KX3.
>> 
>> Since I don't need two KXUSB cables, I am contemplating cutting off
>> the mini phone plug and wiring up a DB-15. Has anyone done this?
>> And, anyone see a downside?
>> 
>> Thanks es 73 Bill N4LG
>> 
>> 
>> 
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Re: [Elecraft] Convert a KXUSBa cable to KUSB

[Bill Steffey NY9H]

db 15  or db9 ( DE9)


On 7/17/2020 9:20 AM, Bill Cotter wrote:
Somehow in the entropy of the universe and my cluttered shack/shop, I 
have managed to lose my KUSB cable for my K3. I found the earlier 
(silver) cable, but it doesn't have the FTDI chip and won't work with 
Win-10. In the process of searching for the KUSB I have managed to 
unearth two KXUSBa cables for my KX3.


Since I don't need two KXUSB cables, I am contemplating cutting off 
the mini phone plug and wiring up a DB-15. Has anyone done this? And, 
anyone see a downside?


Thanks es 73 Bill N4LG

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Re: [Elecraft] Convert a KXUSBa cable to KUSB

[Bill Steffey NY9H]

heck    for 13 $ you can get another  usb rs232 ftdi cord


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[FTDI Chipset] (CB-FTDI)




   Sabrent USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft
   Cable [FTDI Chipset] (CB-FTDI)
   


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On 7/17/2020 9:20 AM, Bill Cotter wrote:
Somehow in the entropy of the universe and my cluttered shack/shop, I 
have managed to lose my KUSB cable for my K3. I found the earlier 
(silver) cable, but it doesn't have the FTDI chip and won't work with 
Win-10. In the process of searching for the KUSB I have managed to 
unearth two KXUSBa cables for my KX3.


Since I don't need two KXUSB cables, I am contemplating cutting off 
the mini phone plug and wiring up a DB-15. Has anyone done this? And, 
anyone see a downside?


Thanks es 73 Bill N4LG

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Re: [Elecraft] Convert a KXUSBa cable to KUSB

[Ken Winterling]

Bill,

I haven't looked into the electronic validity of what you are asking but I
would recommend building an adapter with a female jack and DB-15 vs cutting
off a working connector.

Ken
WA2LBI



On Fri, Jul 17, 2020 at 9:21 AM Bill Cotter  wrote:

> Somehow in the entropy of the universe and my cluttered shack/shop,
> I have managed to lose my KUSB cable for my K3. I found the earlier
> (silver) cable, but it doesn't have the FTDI chip and won't work
> with Win-10. In the process of searching for the KUSB I have
> managed to unearth two KXUSBa cables for my KX3.
>
> Since I don't need two KXUSB cables, I am contemplating cutting off
> the mini phone plug and wiring up a DB-15. Has anyone done this?
> And, anyone see a downside?
>
> Thanks es 73 Bill N4LG
>
>
>
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[Elecraft] Convert a KXUSBa cable to KUSB

[Bill Cotter]

Somehow in the entropy of the universe and my cluttered shack/shop, 
I have managed to lose my KUSB cable for my K3. I found the earlier 
(silver) cable, but it doesn't have the FTDI chip and won't work 
with Win-10. In the process of searching for the KUSB I have 
managed to unearth two KXUSBa cables for my KX3.


Since I don't need two KXUSB cables, I am contemplating cutting off 
the mini phone plug and wiring up a DB-15. Has anyone done this? 
And, anyone see a downside?


Thanks es 73 Bill N4LG

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