SC-1000 (EPSON)

C bus SCSI I / F. Average power consumption + 5 V, 350 mA. Ambient temperature 10-35 °,
Humidity 20-80% (thing without dew condensation).
Supported devices: PC-9801VM / UV / CV / VX / UX / EX / ES / RX / RA / RS, PC-98XA / XL / XL ^ 2 / RL,
PC-286 / X / V / VE / VF / VS / VX / U / US / UX, PC-386 / V / M, PC-286L / LE / LF
I / O expansion unit (PC286LIOU) required for 3 models), PC-386L
2 8 dip switches and 1 4 dip switch on the board,
There are two 3 jumper switches.

· 8 stations dip switch SW1: SCSI ID, interrupt level, DMA channel
　settings of
1-2-3: SCSI ID setting
　ON-ON-ON ID = 0
　OFF-ON-ON ID = 1
　ON-OFF-N ■ ID = 2
　OFF-OFF-ON ID = 3
　ON-ON-OFF ID = 4
　OFF-ON-OFF ID 5
　ON-OFF-OFF ■ ID = 6
　OFF-OFF-OFF ■ ID = 7 (factory setting)
4-5-6: Setting interrupt level
　ON-ON-ON INT 0
　OFF-ON-ON INT 1
　ON-OFF-ON INT 2
　OFF-OFF-ON INT 3 (default setting)
　ON-ON-OFF INT 5
　OFF-ON-OFF INT 6
　ON-OFF-OFF ■ Undefined
　OFF-OFF-OFF ■ Undefined
7-8: DMA channel setting
　ON-ON DMA # 0 (factory setting)
　OFF-ON ■ Setting prohibited
　ON-OFF DMA # 2
　OFF-OFF DMA # 3
※ # 2 is PC-9801VM / UV2 / UV11 (Note 1), PC-286U (Note 1), PC-286L / LE / LF
　Used only with the I / O expansion unit (PC 286 LIOU) attached (Note 2)
　Possible.However, with dip switches on the PC and I / O expansion unit,
　Fix the built-in FDD or connection FDD to 2DD.
Note 1: When using # 0 / # 2, use expansion slot 2 or # 0 / # 3
　If this is the case, attach this I / F to expansion slot 1.
Note 2: When using the PC 286 LIOU, set the ROM address of this I / F to D4000h to D4FFFh
　About.

・ 8 stations dip switch SW2: SCSI BIOS ROM address, body model,
　Setting SCSI BIOS ROM Use / Disuse
1-2-3: ROM address setting in normal mode
　ON-ON-ON ■ Setting prohibited
　OFF-ON-ON DC000h to DCFFFh (factory setting)
　ON-OFF-ON ■ Setting prohibited
　OFF-OFF-ON ■ Setting prohibited
　ON-ON-OFF ■ Setting prohibited
　OFF-ON-OFFD D4000h to D4FFFh
　ON-OFF-OFF ■ Setting prohibited
　OFF-OFF-OFF ■ Setting prohibited
4-5: ROM address setting in high resolution mode
　ON-ON ■ Setting prohibited
　OFF-ON EC000h to ECFFFh (factory setting)
　ON-OFF ■ Setting prohibited
　OFF-OFF ■ Setting prohibited
6-7: Setting of machine model
　ON-ON ■ 286 or more models for normal mode only (default setting)
　OFF-ON Normal / High-res Double-mode compatible models
　ON-OFF V30 equipped model
　OFF-OFF ■ model only for high res (PC-98XA)
8: Setting SCSI BIOS ROM usage
　ON ■ Use SCSI BIOS ROM (default setting)
　OFF ■ Setting prohibited

・ 4 stations dip switch SW3: Change prohibited (Factory setting: OFF-OFF-OFF-ON)

・ Three jumper switch JP1: Do not change (Factory setting: 1-2 shorts)

・ Three jumper switch JP2: Do not change (Factory setting: 1-2 shorts)

・ Switch lever beside C bus connector: Setting of main unit model
　Kill: 2866 or more models (when operating this I / F in protected mode)
　　　　　　　　　　　　　　　　　　　　　　　　　　(Factory setting)
　Cause: PC-9801U2 / UV2 / UV21 / UV11 / CV11, PC-286U