| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1014.1 | It's easier to buy a new cable! | CELSST::FISHER | John Fisher @RTP | DTN 367-4451 | Mon Dec 28 1987 12:18 | 28 |
| If you already have an A2000, then check on page A-8 of the manual.
Otherwise....
Pin Name Description
1 STROBE STROBE
2 D0 DATA BIT 0
3 D1 1
4 D2 2
5 D3 3
6 D4 4
7 D5 5
8 D6 6
9 D7 7
10 ACK ACKNOWLEDGE
11 BUSY BUSY
12 POUT PAPER OUT
13 SEL SELECT
14 +5V PULLUP +5 VOLTS POWER (100 mA)
15 NC NO CONNECTION
16 RESET RESET
17 through 25 are GND SIGNAL GROUND
Be certain that the printer can handle pin 14 !!
With my set-up, I used an IBM printer cable, and an LA75P
'off-the-shelf'. They make a great team.
|
| 1014.2 | Too much money ??? | FHOOA::SPATOULAS | | Wed Dec 30 1987 11:10 | 11 |
| re .1
Thanks John, I meant the pinout of the difference i.e. what pins
are the ones that are different on the old cable.
You are right the easiest way is to by a PC compatible cable but
they want $20 for it. For a lousy cable.
...George...
|
| 1014.3 | Parallel Port (A1000 vs A500/2000) | CELSST::FISHER | John Fisher @RTP | DTN 367-4451 | Thu Dec 31 1987 01:29 | 43 |
| Ouch !! My dealer had a nice deal... He swapped the old for the
new cables. That's the way to do things! We both win (he sells
the old cable with the old 1000). For $10 or less, I would buy,
but at $20 -- no way.
Here are the pinout differences:
A1000 Pin A2000
DRDY 1 STROBE
D0 2 D0
D1 3 D1
D2 4 D2
D3 5 D3
D4 6 D4
D5 7 D5
D6 8 D6
D7 9 D7
ACK 10 ACK
BUSY 11 BUSY
POUT 12 POUT
SEL 13 SEL
GND 14 +5V
GND 15 ---
GND 16 RESET
GND 17 GND
GND 18 GND
GND 19 GND
GND 20 GND
GND 21 GND
GND 22 GND
+ 5 23 GND
--- 24 GND
RESET 25 GND
So....
Move the lines 23 to 25 on the A1000 cable to 14 to 16 on the
A2000 adapter... Plus, if I remember correctly there is also a
gender change that must be dealt with at the same time.
Hope that helps.
=jbf=
|
| 1014.4 | Just what the doctor ordered | USFHSL::SPATOULAS | | Thu Dec 31 1987 10:26 | 15 |
| Thanks john !
I agree $20 for a cable is a crime. That is exactly what I was
looking for. You must be a lucky guy to have a dealer like this.
I put the computer dealers in the same category with car dealers
and lwayers and insurances, they take advantage of you any way they
can (MOST of them).
You are right about the gender changer and I have a couple. Strangely
enough the serial port needs a gender also !!!!!
Thanks any way and have a happy computing year.
...george...
|
| 1014.5 | $20.00 really not that bad. | NAC::VISSER | | Thu Dec 31 1987 10:52 | 8 |
| My experience in product devlopment at a small company dictates
that $20.00 for a parallel cable is not that expensive. One of
the highest component costs in computer systems is connectors and
cables. A lot of them are not manufacturable automatically, and
when you consider the relative size of the Amiga 2000 cable market,
well...
Just mmy opinion,
John
|
| 1014.6 | On A500/2000 $20 = Profit ! | CELSST::FISHER | John Fisher @RTP | DTN 367-4451 | Thu Dec 31 1987 13:04 | 10 |
| I would agree except that the Amiga 2000 uses the IBM PC Centronics
parallel cable. The obvious reason for doing this is that there
is a larger market for this type of cable -- thus, the cost should
have been lower for the consumer. $20 for a special cable such as
is required for the A1000 is acceptable. However, $20 for a VERY
standard cable is mostly profit.
Also my opinion (but I think valid).
John (who_has_a_dealer_who_aims_for_long_term_business_and_gets_it!!)
|
| 1014.7 | | FHOOA::SPATOULAS | | Thu Dec 31 1987 13:07 | 9 |
| re .5
I agree for small companies. but don't forget that the 2000 printer
camble is supposed to be PC comatible. So it is not just the money
but the greed. I rember to have seen cables down to 7.00 for PC's
I just couldn't find the ad again.
...george...
|
| 1014.8 | Business = customer, not profits. | CELSST::FISHER | John Fisher @RTP | DTN 367-4451 | Thu Dec 31 1987 13:33 | 43 |
| Just to get the record straight...
1. I believe in profits. They help pay my Amiga bills.
2. Remember, if you had an A1000 and upgraded it to an A2000,
you will have spent over $1000 on the deal. Plus, if you are
upgrading, there is a VERY strong chance that you have already
spent hundreds of dollars on the existing system/software. And the
reason that anyone will go to the A2000 is for FUTURE upgrades (IBM
PC/XT/AT, hard disks, memory, etc.).
3. So, with all of this in mind. What will make more money? Helping
during the conversion to the A2000 and having a happy customer,
or going for broke. (Not that the intent was malicious -- rather,
it probably was just not thought through. After all they have
bills to pay too!). I happen to be lucky to have such a good
dealer.
4. What's the difference? Well, I have to travel an HOUR (one way)
farther than TWO other dealers, just to get to this dealer.
I have NEVER used mail order (his prices are only a little higher,
and I am generally happy to pay the little bit extra). Nor am
I alone with this. He is appears to be the largest dealer in
the southeast. (And it's a hole in the wall sort of joint!)
5. I don't have particularly deep pockets. He just makes it worth
my while to do business with him. Enough other people think
the same thing. In fact, the past four months have been his
best four months EVER. (Imagine the impact if we could make
that happen for Digital -- we might be close, but not quite
there).
I don't disagree that the $20 is too bad. It is just a sign of the
problems that most business in the states are facing. They have
forgotten that they are NOTHING unless they have happy loyal customers.
Profits are great, but profits will come as a result of quality and
service, both of which are tied together very tightly. (Sure some are
doing wonderful things -- just not enough !!)
So, Okay! I'll get off of the soapbox. (As you might have guessed
this is one topic that will rile me up a bit !!!)
=jbf=
|
| 1014.9 | | NAC::VISSER | | Thu Dec 31 1987 14:17 | 4 |
| I didn't know it was an IBM cable. I just can't get over my inital
shock a couple of years ago when I found out how much connectors
cost. Well, happy printing and happy New Year.
John
|
| 1014.10 | Where do you get `build your own'? | GIAMEM::I_SHAW | Mike Bell at BPO-1/17 | Fri Jul 07 1989 12:38 | 7 |
| I am looking to build my own connector from a kit or something (36
pin Centronics to 25 pin Amiga parallel port). I called Radio Shack in
Westboro and they have no such connect the wires anyway you want kit. Does
anyone know where I could get such a cable? It's for this LJ252 and I don't
trust any other, I wanna build my own from the specs.
--mikie--
|
| 1014.11 | Pick your own from loose parts | BOMBE::MOORE | BaN CaSe_sEnSiTiVe iDeNtIfIeRs! | Fri Jul 07 1989 20:54 | 4 |
| Well, they may not have a "kit", but they probably have all the
necessary parts. Those are standard connectors and I'm pretty sure
they are listed in Radio Shack's catalog. Figure out how many
conductors you need, then see if they have appropriate cable...
|
| 1014.12 | Try Active Electronics | MEIS::ZIMMERMAN | Fresh from the sewer! | Tue Jul 11 1989 22:44 | 6 |
|
If you're in Westboro, try Active Electronics, 133 Flanders Road.
They've got just about everything. (If they don't have it, you don't
need it! ;-) )
- Cliff
|