AT&T 6300 Service Manual page 94

INSTALLATIONS
14. On DIPSW-0, set switches 1, 2, 3, and 4 for 640-KB total
memory adding 256-K bit chips (Figure 3-8).
• Switch 1 OFF
• Switch 2 ON
• Switch 3 OFF
• Switch 4 OFF
• Switches 5 to 7 (Do not require setting for memory)
• Switch 8 OFF.
1
2 3 4
5 6 7 8
o
N
x
x x
o
f
Figure
3-8.
DIPSW
-0
Setting for
640-KB
Total
Memory on Motherboard Using
256-K
Bit Chips in Bank 1
Note: Some switches are rocker type; others are
slide type. Some DIP switches have the ON
designation at the top of the switch; others have it
on the bottom.
ON=CLOSED=l
OFF=OPEN=O
3-18