3Com Equity Series Computers Equity I+ - Manual (Page 3)

EQUITY I+
Jumper Locations DMA Channels
Channel Function
0 Refresh
1 Spare
2 FDD Adapter
3 HDD Adapter
Jumper Settings for FDC, RAM, and EPROM
Configuration
, F u n c t i o n
A
B
A
B
A
B
FDC enabled
FDC disabled
Parity RAM disabled
Parity enabled
EPROM selected
256KB EPROM selected
Parity RAM lnstallation
The Equity I+ supports parity RAM checking to insure that
the data stored in memory is valid. To install this option,
insert two 50256 or 51256 chips in sockets 6M and 7M; and
4164 chips in sockets 6N and 7N. Then set jumper J2 as
shown in the table above.
Hardware Interrupts
Number Function
Timer
Keyboard
EGA, PC Net,
Serial 2
Serial 1
Hard Disk
Floppy Disk
Printer
1
Equity Series Computers 12/12/88
EQI+ -3