richm@pro-berks.cts.com (Rich Mlodoch) (02/20/91)
Smartport Apple Disk ][
1 ground 1 ground
2 ground 2 Phase A
3 ground 3 ground
4 3.5 in. disk 4 Phase B
5 -12v 5 ground
6 +5v 6 Phase C
7 +12v 7 ground
8 +12v 8 Phase D
9 Enable 9 -12v
10 Write Protect 10 Write Request
11 Phase 0 11 +5v
12 Phase 1 12 +5v
13 Phase 3 13 +12v
14 Phase 4 14 Drive Enable
15 Write request 15 +12v
16 Head select 16 Read data
17 Drive 2 enable 17 +12v
18 Read data 18 Write data
19 Write data 19 +12v
20 Write protect
These are the pin outs of the two different drives
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pro-berks--215/929-4315--A free public access Proline system.richm@pro-berks.cts.com (Rich Mlodoch) (02/20/91)
Smartport Apple ][ disk 1 --| |-- 1 2 --+---------+-- 3 3 --| |-- 5 |-- 7 4 n.c. 5 --------------- 9 6 ------------|-- 11 |-- 12 7 --+---------|-- 13 8 --| +-- 15 |-- 17 |-- 19 9 --------------- 14 First Drive 10 -------------- 20 11 -------------- 2 12 -------------- 4 13 -------------- 6 14 -------------- 8 15 -------------- 10 16 n.c. 17 -------------- 14 Second Drive 18 -------------- 16 19 -------------- 18 This is the wiring needed between the Smartport and TWO disk ][ drives. Connections from the smartport to the disk ]['s need to go to BOTH drives, except to pin 14. As noted above, pin 14 of the first and second drives go to different pins on the smartport. Feel free to hook it up any way you want. Be careful in your wiring. This is the way I wired it. ** I take NO responisiblity for how YOU use this information ** ProLine: richm@pro-berks Internet: richm@pro-berks.cts.com UUCP: crash!pro-berks!richm ARPA: crash!pro-berks!richm@nosc.mil Bitnet: richm%pro-berks.cts.com@nosc.mil pro-berks--215/929-4315--A free public access Proline system.
richm@pro-berks.cts.com (Rich Mlodoch) (02/20/91)
I receive some mail from folks who wanted to know how to hook up two disk ][ drives to a smartport. Here's how I did it. Building the cable is pretty easy. I used a small Radio Shack poject board. I mounted two 20 pin headers on th project board (this is where you will plug in your disk ][ drives), they are about 1.5 in. apart. They must be mounted so that you can solder wires to the foil pads. I mounted mine on the foil pad side. I then bent the pins back up through to the foil pad side from the non foil pad side that they stuck down through to and I soldered them in place. The end result is that you have two headers mounted so that you have two or three pads for each pin to make connections to. I up to you how you do it. Jumper wires should now be used to interconnect pins 1 to 20 on header 1 to 1 to 20 to header 2 , EXCEPT FOR PIN 14. DO NOT INTERCONNECT THE TWO PIN 14s. Using a 5 or 6 in piece of 20 conductor ribbon wire make te following connections between your board and a DB19 male connector. I will give the pins in the following order: DB19 - Your board ::: 1 - 1, 2 - 3, 3 - 5, 5 - 9, 6 - 11, 7 - 13, 8 - 15, 9 - 14 of header #1, 10 - 20, 11 - 2, 12 - 4, 13 - 6, 14 - 8, 15 -10, 17 - 14 of header #2, 18 - 16, 19 - 18. Note that pin 14 is the only pin that is not interconnected. This is the drive enable signal. It needs to come from two different places to enable two different drives. BE CAREFUL making your cable. CHECK all connections. I highly recommend this cable be made by someone with some ProLine: richm@pro-berks Internet: richm@pro-berks.cts.com UUCP: crash!pro-berks!richm ARPA: crash!pro-berks!richm@nosc.mil Bitnet: richm%pro-berks.cts.com@nosc.mil pro-berks--215/929-4315--A free public access Proline system.
greg@hoss.unl.edu (Lig Lury Jr.) (02/23/91)
In <7684@crash.cts.com> johnw@pro-harvest.cts.com (John Withers) writes: >In-Reply-To: message from richm@pro-berks.cts.com >What about using a 'duo-disk'? The "Duo-Disk" has the appropriate connector already. That's why. :-) >John ><johnw@pro-harvest> -- /// ____ \\\ DON'T \"Have you ever been to Belgium in fact?" "I think | |/ / \ \| | PANIC \ that you should restrict that sort of remark to \\_( \==/ )_// Lig Lury, Jr. \ something artistic." "You sound as if I just \__\\/ greg@hoss.unl.edu \ said something unspeakably rude." "You did."
johnw@pro-harvest.cts.com (John Withers) (02/26/91)
>>What about using a 'duo-disk'? >The "Duo-Disk" has the appropriate connector already. >That's why. :-) Does the correct connector imply that the device will be functional, and under what conditions will it work. John Withers <johnw@pro-harvest>