[Yaesu] Straight and Null Modem serial cable

Mon, 14 Oct 2002 14:04:50 -0400

Hi Edward,

Some devices are 'Data Comm Equip' (DCE) and some are 'Data Terminal
Equipment' (DTE).  When you connect two devices of the same type, you
typically need a 'null modem' cable or adapter on the cable.  This
'null-modem' crosses the signals - so each device thinks it attached to the
correct ype of device...

Radio shack sells a 9-pin null-modem adapter (about 1" long with 9-pin
connectos on both ends) for about $6 - letting you use it for devices
requiring one and leaving it off for those that do not

73
Frank
 ._._.
----- Original Message -----
From: "Edward B. Soriano, M.D." <[email protected]>
To: <[email protected]>; <[email protected]>;
<[email protected]>
Sent: Tuesday, October 15, 2002 5:14 AM
Subject: [Yaesu] Straight and Null Modem serial cable

> Sorry for the ignorance. Can someone tell me the difference between a
"straight serial cable" and a "null modem" type of serial cable.
>
> Been trying to connect my FT847 to my notebook with no avail. No problem
with my FT 920. The manual says one must use the null modem type. Not sure
if I got the right one.
>
> Software is LOGIC 5.2
>
> Thanks!
>
> Edward B. Soriano, M.D.
> 4F1OZ also W3DOC
>
>
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