
3-10
I/O Expander 4S User's Manual
U6
U7
U8
460800
U5
3F8 COM1
2F8 COM2
3E8 COM3
2E8 COM4
2F0 COM5
3E0 COM6
2E0 COM7
260 COM8
368 COM9
268 COM10
360 COM11
270 COM12
IRQ3
IRQ4
IRQ5
IRQ11
IRQ12
IRQ15
115200
230400
IRQ7
IRQ10
IRQ9
S4
S3
S2
S1
S4
S3
S2
S1S1-IRQ
S2-IRQ
S3-IRQ
S4-IRQ
SIO4 SIO3
61
6
1
SIO1
SIO2
Alignment
Notch
Align the notch on the chip and socket for proper
orientation. It is VERY IMPORTANT that the notch on
the chip is matched with the notch on the socket. Make
sure all pins are aligned with the socket holes; then
gently press the chip into the socket until seated.
Figure 3-3: Upgrade Kit’s Socket and Jumper LocationsFigure 3-3: Upgrade Kit’s Socket and Jumper Locations
Figure 3-3: Upgrade Kit’s Socket and Jumper LocationsFigure 3-3: Upgrade Kit’s Socket and Jumper Locations
Figure 3-3: Upgrade Kit’s Socket and Jumper Locations
16550 Chip
Sockets
COM
Jumpers
for Serial
Port 3 & 4
IRQ
Jumpers
for Serial
Port 3 & 4
Baud Rate
Jumpers for Serial
Port 3 & 4
10-pin Connectors
for Serial Ports 3 & 4
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