16 Oct
2006
16 Oct
'06
1:44 p.m.
On Monday 16 October 2006 12:41 pm, David Griffith wrote:
On Mon, 16 Oct 2006, Kevin Handy wrote:
I forget where I got mine, some mail-order outfit back when and I was
ordering some other stuff and got that while I was at it. A very handy
gadget to be sure. I also paid half the price that RS was asking for theirs,
which if I'm remembering right was $14.95 or so.
What I do with 'em is plug one side in alone, and note what lights up and
what doesn't, then do the other side alone. That'll give me a pretty good
indication of whether or not I need to cross any lines.
--
Member of the toughest, meanest, dealiest, most unrelenting -- and
ablest -- form of life in this section of spac, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
To test weither you need a null-modem or not,
when you
have a 25 pin conector, get one of those RS-232 line
monitors (available at RadioShack for < $10.00) which
display several of the signals using leds. If both pin 2 and
3 light up, you are probably Ok, If only one lights up,
you probably need a null modem. If you then put in a
null modem, and still only have one light, you have a
bad (cable, interface, etc).
I was at a Radio Shack a couple months ago and observed these line
monitors being removed from inventory. They said they'd be liquidated by
someone else. Jameco may be a more reliable source for this gizmo now.