PC transporter drives

[gospodin@clubi.ie (Vincent Quinn)]

As there have been a few postings about PC Transporter recently, I thought
I'd
make my contribution.

_Firstly_, I want to hook up a standard PC 360K, 5.25 floppy drive as drive
B (I
have an Apple 3.5 as drive A). Problem is, I don't have a complete pinout.

I'm assuming that the pinout of the PCT 19-pin drive connector is the same
as
that of the IIGS SmartPort (that's logical, since Apple 3.5 drives work
perfectly with the PCT) and that the 5.25 drive comes first in the chain
(as
indicated by the PCT manual). So a 19-pin pass-through connector needs to
be
added at the rear of the PC drive for chaining the Apple 3.5" drive to. OK.

It's easy enough to work out most of the pins, but I've no idea where the
step
signals (pins 11, 12, 13, 14) go to PC drive edge connector. A second
problem is
that I could have the drive 1 and drive 2 enable signals wrong - a look at
a
standard 'twisted' PC drive connection ribbon cable suggests that drive 1
enable
might go to edge 16 (motor on), drive 2 enable to edge 10 (DS1).

Leaving that aside, it seems to be a case of pick four from seven, in that
the
most likely edge connector pins unused in the scheme below are: 4 (head
load); 8
(index); 18 (step direction); 20 (step signal); 26 (track 0); 32 (side
select)
and 34 (drive ready).

Anyone help complete/improve on the following???

PCT 19-pin drive connector>		PC drive connectors>	    19-pin pass-through
																	                                     connector
 1 (ground)					            	power plug 2			           1
 2 (ground)						            power plug 3			           2
 3 (ground)						            edge connector odd pins	  3
 4 (3.5 drive enable)			     -						                   4
 5 (-12V)						              -						                   5
 6 (+5V)						               power plug 4			           6
 7 (+12V)					              	power plug 1			           7
 8 (+12V)					              	power plug 1			           8
 9 (drive 2 enable)			      	edge connr 12 (or 10?)	   9
10 (write protect)				       edge connr 28			         10
11 (step 0)						            ?						                  11
12 (step 1)					            	?					                  	12
13 (step 2)					            	?						                  13
14 (step 3)						            ?					                  	14
15 (write request)				       edge connr 24			         15
16 (3.5 drive select)		     	-					                  	16
17 (drive 1 enable)			      	edge connr 10 (or 16?)	  17
18 (read data)					          edge connr 30			         18
19 (write data)					         edge connr 22			         19

_Secondly_, I've been given a PC tape drive that fits into a floppy bay. It
has
the standard 4-pin power/34 pin edge connectors and is marked "Irwin model
185,
Product ID 285 MX-02".

Anyone know if this will work with PCT?
Or if there is any other way of using it on a GS (eg with the Bluedisk
card)?
Or what type/capacity tapes it accepts (the person who gave it me didn't
know)?

TIA

Vincent Quinn