If I remember well, SD for EII does not work on System 8 or later; but this is most probably caused by the hardware of the Mac computers on which System 8 or later was typically installed. I think the issue is caused by the RS422 ports and the way they are accessed (with low level calls) by the SD software. Even some older Macs running OS 7.x couldn't run SD for EII successfully neither due to hardware differences with e.g. PB 180s, Mac SE or Mac Classic computers...
Anyway, the Emulator-II group on Yahoo hosted a database in which users could log which setup worked with SD for EII.
Here's a dump in CSV format, the first line is the header and the other lines contain different proven setups.I If you copy it into a spreadsheet program like Excel you can convert it to separate columns with the text-to-column function
Macintosh Model,Mac OS Version,Mac Memory,SD Serial Port,External SCSI Peripherals,Notes,E-II Model,E-II OS Version
IIvx,7.1,N/A,N/A,N/A,Listed as working at emulatorarchive.com,N/A,N/A
SE/30,6.1,,MODEM,,"APPLETALK OFF . On emu II, PIN 10 Of ic 132 must be Lifted",EII 6028 #1004 REV.1 LOGIC BOARD RS422,3.1
Quadra 840AV,7.5.5,64 MB,Printer,None,Appletalk off - 68040 cache off,6028,3.1
SE/30,6.0,4 MB,Modem,None,Appletalk OFF,EII+ model 6050 (rev 0 and rev1),3.1
IIfx,7.6.1,32 MB,Printer,FWB Jackhammer controlling 2GB Seagate... ext Zip 100,"Appletalk off, minimal extensions, very reliable. I often seem to have to manually trash temp files left behind in the program directory.",EII+ HD 6075 #2162,
Powerbook 180c,7.5,12 MB,Modem,None,Appletalk must be ON,EII+ model 6050 (rev1),
Performa 575,7.5,20 MB,Modem,"SyQuest SyJet, Yamaha CRW6416S",,EII 6028,"2.2, 2.3, 3.0, 3.1"
Performa 5200,7.5.2,?,Modem,None,?,SN >15xx,3.1
Classic,7.0.1,4 MB,Modem,Apple CD-ROM,,Emulator II+ single drive (6050),3.1
Classic,D1-7.0,4 MB,Modem,"Seagate 4GB Harddisk, Zip 100",,EII+ 6060,
IIci,7.1.2,8 MB,Modem,None,,EII 6028,"2.2, 2.3, 3.0, 3.1"
Power Macintosh 7100/80AV,7.5.5,48 MB,Modem,"SyQuest Syjet, Yamaha CRW6416S",,EII 6028,"2.2, 2.3, 3.0, 3.1"
Powerbook 140,7.5,8MB,Modem,,Mac extensions 7.5 only. Apple Talk on.,Rev 1,3.1
Powerbook 180c,7.1,12 MB,Modem,Apple CD-ROM,,Emulator II Rev 1 Board,3.1
SE,6.7,4 MB,Modem,Zip 100,,EII rev 1,3.1
Powerbook 165c,7.1,4 MB,Modem,Apple CD-ROM,AppleTalk On,Ver 1. SN 1330,3.1
Quadra 800,7.6.1 & 8.1,72 MB,Modem,None,68040 cache disabled. Appletalk off.,EII Model 6028,"2.3, 3.1"
IIsi,7.5,16 MB,Modem,None (Yet!),"EII fitted with RS422 board as it's REV0. When communicating with EII, Mac won't recognise at first, but second and all other attempts will be fine.",EII 6028 (Serial 460),3.1
SE/30,7.1,32 MB,Modem or Printer,None,,EII 6028,
Powerbook 165c,7.5,4 MB,Modem,SyQuest SyJet,AppleTalk must be on.,EII+ 6060,"2.2, 2.3, 3.0, 3.1"
Powerbook 5300cs,7.5.5,16 MB,Modem,"Yamaha CDR-102, PCMCIA SD Memory Card Reader",AppleTalk must be active and set to Infrared Port (*not* modem-printer port).,EII+ 6060,"2.2, 2.3, 3.0, 3.1,"
LC III,7.1,16 MB,Printer,None,,EII 6028,
Classic 4/40,7.5,4 MB,Modem,"Zip 100, Apple CD300 CD-ROM",Appletalk OFF,EII+ model 6050 (rev 0 and rev1),
SE,7,4 MB,Modem,Zip 100,Set Memory for program to 468k rather than the auto setting of 2468k,EII+,3.1
Plus,6.0.8 & 7.1,4 MB,Modem,"Zip 100, CD-ROM Drive",No special OS configuration needed. Emulator is upgraded to RS422 since it has a Rev.0 board.,EII 6028 SN: 326,"2.3, 3.1"
SE 4/80,6.7,4 MB,Modem,Zip 100,,E II 6018 - upgraded to 6028,
Powerbook 165c,7.6.1,14 MB,Printer,Zip Drive,"MAC extensions = Base settings, Appletalk = On and set to Modem. Connect E2 to Printer Port. Click transfer twice.",6028,2.3
Power Macintosh 7500/100,8.0,48 MB,Modem,None,"Appletalk active (on printerport), Disk cache on 96K, virtual memory on 1024M, 39M, 41M, ram disk on 480K.",EII+HD,3.1
Quadra 950,7.5.5,64 MB,Modem,None,Serial switch control panel set to "compatible" mode.,,3.1
Powerbook 5300c,8.6,N/A,N/A,N/A,Listed as working at emulatorarchive.com,N/A,N/A
Color Classic,7.1,4 MB,Modem,Apple CD-ROM,Appletalk On or Off,SN 1330 - Rev 1.,3.1
Author