The S/Link & SCSI Page
to "Technical Information" menu
....go back to main page
*Author assumes no responsibility for the information contained herein*
|Here it goes. I spent 15 hours on this. It helps.
It works. It was tested and verified. Use for your own piece of mind.
1) My Mac's external SCSI port produces +7 volts on the SCSI bus.
The Synclavier likes +5. Measure the DC voltage of pin 38.
Transfers will be faster because there is no bizarre voltage potentials on the SCSI bus (you can burn out devices otherwise). Hang-ups will occur less. The possibility of quitting S/Link without the Mac bombing will increase.
|The Optical Drive MUST be the first drive on the SCSI chain.
The 3200/6400/9600 require the use of a terminator into the Expansion Port as the internal drives are NOT terminated.
When using a DtoD slaved to the Synclavier 3200/6400/9600 the configuration
is as follows:
|...AND PROBABLY THE BEST ADVICE FOR ANY SCSI USER!!!
Apparently most Macs supply TERMPWR to the SCSI bus. One has to
|Important drive configuration information for ALL drives:
1.Set the jumpers for a unique SCSI ID. See chart below.
2.Set the Termination Power to "From the Bus".
3.If the drive is the last device on the SCSI Cable, set the Termination ON. If you are adding the drive in the middle of the cable, set the termination OFF.
4.There should be only ONE device supplying +5 volts to the SCSI bus!!!
5.And keep those cables as shielded and short as possible. I build my own custom cables and adapters...
Internal lengths are:
These lengths have to be considered when calculating Total Cable Length (18 feet max.)
|Common SCSI ID numbers:
0=Macintosh Hard Drive
1=Synclavier Optical Disk
5=Synclavier System Winchester
|For MORE terrific SCSI information about "Power Mac 7500,7600,8500,9500
Series: SCSI-2 Compliance" go to
And for every topic you can imagine
|Now that I'm in the full swing of transferring whole categories of
samples from Synclavier to AIFF for assembling to CD on Sonic Solutions, I'm
having to use S/tink for more than just the occasional conversion of a
single file. I'm now being reminded of how shitty this application is when
it comes to it's "multiple item transfer" feature. It completely bombs
almost half the time. I end up selecting only about 10 items at a time in
the hopes this will help prevent it from crashing.
Even though I've never seen the source code for this program, I think
Even aside from the feeling one gets when using S/tink that you should
|To do an Optical to Optical copy, do not use Opcopy. Use FWB Hard Disk ToolKit and do a SCSI "mirror" copy. It is WAY faster.|
|For terrific SCSI information go to
To download S/Link, go here
|To lift sounds off an audio CD in your CD-ROM,
the drive HAS to have a SCSI interface.
Todd Yvega wrote:
Not true. Zappa's G3 has the CD drive on the ATA
bus, and S/Tink works fine here (so it HAS to
Bizarre. That is supposed to be the golden rule.
Sean Callery couldn't get his to work and he has a
Oh well. Color me dumb! - Brandon (maybe it is IDE drives...) Actually, I just read about it at http://www.xlr8yourmac.com/audio/issue12.html
|It seems that with all the various SCSI cards and ROMs and the two
decades in which all this evolved, there are some DtoD incompatibilities
that cannot be overcome. MOs can also be problematic.
However, S/Link works PERFECTLY with the Synclavier - Don't I wish ;-)
|Really, the best version to use with the Synclavier is a bug fix update
|Turn Virtual Memory OFF. Leave it OFF. Keep it OFF!!!!|
|As a fellow S/Link victim, let me say this:
I bought S/Link directly from Airworks by telephone. The company
|Important S/Link pseudo fact: S/Link BLOWS!|
|Important S/Link Sucky-Problem!
After wasting an entire night, I have identified a "bug" which plagues batch file transfers! If you are copying several files, and their names are i.e. "hello1.wav", "hello2.wav", etc. and you select all the files to be copied at once you get some massive errors in your Synclavier. S/Link attempts to reduce the name size to 8 characters which is the maximum length allowable by the Synclavier. It removes the necessary amount of characters from the decimal on over to the left. Hence, "hello1.wav" would become "hell.wav" (a very appropriate title by the way). Now you would have several files all named "hell.wav" with S/Link unsuccessfully trying to copy them to your System Winchester. The end result (when viewed on the RTP 'B' page) are files with outrageous file sizes, sample rates, etc. If you try to load or copy these files the system will hang.
I had to change the names of several dozen files to perform my last job duty. They should pay us to use S/Link.
|If you need to get sounds to and from you DtoD and none of this works
Copy your cues to an Optical Drive and S/Link them to your Mac or
Copy your cues to an "Optically formatted hard drive" (Release 4.02), copy them to W0: and then copy them to your Mac with S/Link. S/Link does not recognize an "Optically formatted hard drive", hence this round-about method.
|On the D24 card:
The jumper in-between the two termination resistor packs determines whether or not 5 volts is sent for termination power over the SCSI bus.
|The last Synclavier software version tested by Airworks is Release 3.23|
|Release 4.02 allows a user to format a hard drive as an optical drive. Unfortunately, S/Link does not see these drives.|
|When transferring 12" WORMs to 5" opticals with S/Link, connect the two drives with the System Winchester directly to the Macintosh. Or use Release 4.02 "OPCOPY" to copy between the drives.|
|Only use S/Link 2.0 for Synclavier/DtoD. The code in 2.1 is broken for our machines. For example, with a D to D, you cannot write to Track 1. Contact Andy Pettit if you need this version.|
|S/Link *CAN* access the DtoD. Try removing the termination resistors
from the DtoDs D24 card that goes to the External "In" SCSI connector.
Also remove the jumper which sits in-between the resistor packs.
If you use the DtoD as a slave, you need a SCSI 'T' adapter on the "In"
connector to place the DtoD in-between the Synclavier and Mac for proper
termination. If you use a DtoD as a stand-alone, you need the same
'T' connector with one end going to the "Out" SCSI connector on your
DtoD instead of the Synclavier. S/Link should now work fine!
Thank you Todd!
IMPORTANT INFORMATION: once this modification is made, you *MAY* have to use an active terminator if you wish your system to run as a stand-alone machine or without S/Link. Here is a better alternative:
On the back of my PostPro are four "Time Expansion" connectors which lead straight to the hard drives. By connecting your Mac to these ports, the tracks come off at a 2 to 3 times faster rate. Before I did this, I was receiving "Read-Errors". It looks as if the data was having to make too many "connections" (SCSI cards, several feet of cable, etc.) before it got to the Mac. I was told by Andy Pettit of Airworks to also try using an APS SCSI Sentry or active termination and increasing the memory to the application. This did not help in my case (I have only a generic active terminator, however).
I am now tape free. I mix my DtoD and Synclavier tracks to 2 tracks on the DtoD. I then S/Link them to the Mac for cue editing in ProTools to be placed onto Zip disks or a CD-RW. Let me tell you folks, the sound is incredible. *NO MORE TAPE!*
|Quick S/Link factoid.
SLink cannot differentiate between the Mac's two SCSI busses although connecting a SCSI card seems to cause no such interference.