Technical Specifications A–5
J21
J27
J26
J25
J7
J32
J4 J3
J2
J1
Figure A-1 Motherboard Jumper Locations
Table A-6 Motherboard Jumper Locations
Jumper
Pins
Function
Description
J1
(1 to 2)
(2 to 3) (D)
Mini-console.
Jump to main console.
Leave at factory default.
J2
(1 to 2)
(2 to 3) (D)
Boot floppy.
Normal (flashROM load).
The DROM code uses J2 to
determine whether an image from a
floppy disk or the flashROM
containing the console firmware
should be loaded into memory and
started.
J3
(1 to 2) (D)
(2 to 3)
Reset.
Halt Interrupt Request.
The front-panel push button can be
set to cause either a Reset or a Halt
Interrupt Request.