PCI / ISA SDLC Adapter Jumper Settings

The picture above shows 2 jumpers and a switch on Systex SDLC cards (PCI version is shown) with the default settings. Location of these jumpers/switches on ISA version of Systex SDLC card might be a slight different.
The default settings values shown above are:

• I/O (Jumper 01): 310
• IRQ (Jumper 02): 05
• Dual Port Memory (Dip Switch 01, 1~4): D0000h
• Mode (Dip Switch 01, 5~6 ): SDLC

Below are all switches' functions and possible values:

• Jumper 01 (I/O):
  Value: 300 / 308 / 310 (default) / 318 / 320
• Jumper 02 (IRQ):
  Value: 5 (default) / 9 / 10 / 11 / 12 / 15
  Note: IRQ setting is defunct on PCI version adapter
• Dip switch 01: Dual port memory and SDLC/BSC mode switch:
  Dual Port Memory location: switch 1st to 4th
  SDLC (16k) / BSC (32k) mode: switch by 5th and 6th
• both switches are down: SDLC mode
• both switches are up: BSC mode

Below are 2 tables showing possible settings of Dip Switch 1 under SDLC or BSC mode:

SDLC mode

Memory location	Switch
	1	2	3	4	5	6
A0000h	1	1	1	1	0	0
A4000h	1	1	1	0	0	0
A8000h	1	1	0	1	0	0
AC000h	1	1	0	0	0	0
C0000h	1	0	1	1	0	0
C4000h	1	0	1	0	0	0
C8000h	1	0	0	1	0	0
CC000h	1	0	0	0	0	0
D0000h	0	1	1	1	0	0
D4000h	0	1	1	0	0	0
D8000h	0	1	0	1	0	0
DC000h	0	1	0	0	0	0
E0000h	0	0	1	1	0	0
E4000h	0	0	1	0	0	0
E8000h	0	0	0	1	0	0
EC000h	0	0	0	0	0	0

• 0: switch down (off)
• 1: switch up (on)
• Default: D0000h

BSC mode

Memory location	Switch
	1	2	3	4	5	6
A0000h	1	1	1	1	1	1
A8000h	1	1	0	1	1	1
C0000h	1	0	1	1	1	1
C8000h	1	0	0	1	1	1
D0000h	0	1	1	1	1	1
D8000h	0	1	0	1	1	1
E0000h	0	0	1	1	1	1
E8000h	0	0	0	1	1	1

• 0: switch down (off)
• 1: switch up (on)
• Default: D0000h

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