Epson EL 486UC Руководство по информации о продукте - Страница 3

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Jumper Settings

J1
Jumper settings
Jumper
Jumper
number
setting
Function
J18
1-2*
Enables COM1 serial port
2-3
Disables COM1 serial port
J19
1-2*
Assigns COM1 serial port as COM1
2-3
Assigns COM1 serial port as COM3**
1-2*
J30
Enables COM2 serial port
DOS automatically reassigns parallel and serial ports. Check your DOS
manual for more information.
+ If you change this jumper setting to position 2-3, make sum you select MONO
Card
for the Video
option In SETUP.
J7
J14
8/15/93
Drive assignment jumper settings
Drive assignment
J-35
Upper drive is A
1-2
2-3*
Lower drive is A
External cache
jumper settings'
Cache size
J7
32 KB
on
On
128 KB
* If you have no external cache installed, the position of these Jumpers does
not matter.
Do not remove jumper J42. If J42 is off, your system cannot
write to RAM.

SIMM Installation

Your computer comes with 4MB of memory on a SIMM. You
can increase the memory up to 32MB by installing 1MB,
4MB, 8MB, and 16MB SIMMs in the computer's two SIMM
sockets. The following table shows the possible SIMM
configurations; do not install memory in any other
configuration.
SIMM configuration
Before you install SIMMs, check the following guidelines to
ensure that they will work properly:
that operate at an access speed of 70ns (nanoseconds) or
faster. Be sure all the SIMMs operate at the same speed.
memory you want. See the table above.
Epson EL 486UC
J38
J36
J37
1-2
1-2
1-2
2-3*
2-3*
2-3*
J14
J10
J11
J13
1-2
1-2
1-2
1-2
2-3
2-3
2-3
2-3
Epson EL 486UC-3