Re: ADT with a Laser 128

["Bill Garber" <willy46pa@comcast DOT net>]

"Ed Eastman" <noone@nowhere.net> wrote in message
news:c60tao$os9$1@unlnews.unl.edu...
: Sounds like a hardware handshaking issue, your cable is
probably not
: correctly wired for ADT to work.  You need to use the IIc
wiring diagram
: for the cable.
:
: Hang on, looking at the specs in ADT2004.zip...  Hey Jeff!
Where's the
: IIc cable diagram?? (Arghhh)  BRB...  In the man time:
:
: The terminal software on the PC can override and ignore the
hardware
: hand shaking, the ADT profgram does not concern itself.  I have
: experienced this same issue on a IIc as well becasue the
hardware
: signals are not all there.  (5 pins, 8 signals.)  Try modifying
your
: null modem cable to disable the hardware handdshaking on the PC
side.
: Just short them togehter on the PC side:
: 25 pin on PC side short these together 4-5, 6-8-20
: 9 pin on the PC side, short these together 7-8, 6-1-4
:
: This turns hardware hand shaking off and allows data to be
transmitted/
: receieved full speed.  This does not cause an issue on a
standard 1MHz
: IIc running 19200 baud and certainly should not cause issue
with a Laser
: 128 running at full tilt.
:
: Pin outs on a IIc/ Laser 128 Null modem cable:
: IIc to PC 25 or 9
:   RTS 1 to 5 or 8 CTS
:   Tx  2 to 3 or 2 Rx
:   Gnd 3 to 7 or 5 Gnd
:   Rx  4 to 2 or 3 Tx
:   CTS 5 to 4 or 7 RTS
:
: Then tie 6/8/20 or 6/1/4 together on the PC side also.

I believe I sent IIc pin 5 to 9-pin 4 and it works.
I've made and sold 2 of these cables wired this way
with no short loops and the guys used ADT just fine.
It is much simpler and makes a nicer cable. Reason
for this is that the cables I made them from only
had 2,3,4,and 5, coming from the 5-pin DIN. Well,
unless these guys messed with them after the fact
and didn't tell me, then it works.

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me



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