I'm tring to connect the 2 computers we have to play NASCAR racing. I
want to make the cable myself because the 2 computers are on differnet
floors of the house. I need about 80 feet of cable to reach. Will there
by any signal loss at that length? What is the min. number of wires I
need in the cable? (3 wires is what we use for serial comm. at work)
I would like to use the mouse port (9 pin) to connect them, so what pin
numbers do I use? If anyone has used a null modem cable to play NASCAR
or Indycar, let us know how it worked?
---
* SLMR 2.1a *
80 FEET!!!! Yes, that is quite long. Just remember to use a shielded
cable.
I have used a null modem cable (shielded) that was 60ft with no
problems.
What do you mean by MAKE the cable? Do you mean you want to take 3 wires
and connect your 2 computers together (with the proper connectors, of
course)?
A Null Modem adapter can be bought at Radio Shack for $3. Now, an
80 ft shielded 9 pin cable will run bigger bucks.
: I'm tring to connect the 2 computers we have to play NASCAR racing. I
: want to make the cable myself because the 2 computers are on differnet
: floors of the house. I need about 80 feet of cable to reach. Will there
: by any signal loss at that length? What is the min. number of wires I
: need in the cable? (3 wires is what we use for serial comm. at work)
: I would like to use the mouse port (9 pin) to connect them, so what pin
: numbers do I use? If anyone has used a null modem cable to play NASCAR
: or Indycar, let us know how it worked?
: ---
: * SLMR 2.1a *
Off the top of my head, the connections are 2-3 3-2 7-7 which is a
minimum 3 wire, a 7 wire with flow control would be better, certainly
with f1gp, having 7 wires killed the annoying stops while one computer
caught up.
I can get the full pinouts for you if you wish, mail me directly if you
want them, if enough people want, I'll post them.
Good luck.
--
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_/ Chairman Staffs uni Compsoc. _/
_/ Snail mail : _/
_/ 12 Crescent Rd, Rowley Park, Stafford, ST17 9AW. _/
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
: I'm tring to connect the 2 computers we have to play NASCAR racing. I
: want to make the cable myself because the 2 computers are on differnet
: floors of the house. I need about 80 feet of cable to reach. Will there
: by any signal loss at that length? What is the min. number of wires I
: need in the cable? (3 wires is what we use for serial comm. at work)
: I would like to use the mouse port (9 pin) to connect them, so what pin
: numbers do I use? If anyone has used a null modem cable to play NASCAR
: or Indycar, let us know how it worked?
I have done this for ICR and Falcon Gold (not NASCAR though...no time :).
Works great on ICR - 0.07secs delay.
Here are your answers posted in case anyone else is wondering too:
1) No signal loss, I use 100feet of cable btwn 2 floors :)
2) Yep, all you need is three wires: td, rd, signal ground.
3) Use green & yellow for td & rd and black for sig. grnd. just for
convention sake, not that it matters ;).
Basically have pin 2 of computer A go to pin 3 of computer B and vice
versa (this is the null modem connection). Pin 7 is ground and goes
straight through.
4) It would be *VERY* beneficial to reroute another com port through
lpt2 (25-pin male usually) instead of using the mouse com port. I
did the mouse thing for a very short time, it's a pain changing it.
Same pin numbers (2,3,7) are used with the DB25 connector.
mode com2: 9600,n,8,1,p
mode lpt2:=com2
Happy Racing,
Darrel
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__&__ | Darrel Cherry
/ \ | San Jose State Math/Computer Science
C ,---_) ------------------------------------------------------
| |,___| "I am Homer of Borg. You will be assimilated. Resistance
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