[Elecraft] USB to Serial adapter for KIO2

[Harry Yingst]

As there seems to be some confusion on your part I would suggest that downloadand Read The Data Sheet for the "DB9-USB family of USB to UART Converters"
Available Here :  http://www.mouser.com/ds/2/163/DS_DB9-USB-15654.pdf
You will then understand what it is and how it functions.









      From: Fred Jensen <k6dgw at foothill.net>
 To: elecraft at mailman.qth.net 
 Sent: Thursday, March 30, 2017 8:02 PM
 Subject: Re: [Elecraft] USB to Serial adapter for KIO2
   
OK Harry, as you wish, but just DO NOT plug a USB-Serial adapter cable 
into the DE-9 connector on the back of the K2 ... unless you strive to 
have Don repair it for you afterward. The connector on the back of your 
K2 is *NOT* an RS-232 serial port.  It does have 2 standard RS-232 wires 
in it [3 if you count signal ground], but all the other pins are 
internal signals at TTL levels and will not tolerate RS-232 signal 
levels which can range up to +/-12V.

73,

Fred ("Skip") K6DGW
Sparks NV USA
Washoe County DM09dn