Setting Jumpers; Figure I-6. Dram Jumpers; Table I-2. Jumper Settings For Total Memory - Bay Networks 281xSA Using Manual

Replacing SIMMs

Setting Jumpers

I-10
When you have finished installing the new SIMM, you must set the DRAM
configuration jumpers (see Figure I-6) to match the amount of memory on the
SIMM.
Front
of hub
Options

Figure I-6. DRAM jumpers

Set the jumpers at locations JP1 and JP2 to match the memory configuration
you have installed, as shown in Table I-2.

Table I-2. Jumper settings for total memory

Total Memory JP1 position
2 MB (default) 1–2
4 MB 2–3
8 MB 1–2
Other jumpers on the board are set at the factory and should not be changed.
JP1
JP2
JP1 JP1
JP2 JP2
2M 4M
JP2 position
2–3
1–2
1–2
JP1
JP2
8M
4858
893-743-A