The
AZZA
P4X2-A MAINBOARD SERIES
Page 23
2.7.1. PS/2 Keyboard connector.
Connector:
CN 1
Type:
6 pin female
This connector only supports a PS/2 keyboard plug. If you have a standard AT size (large
DIN) keyboard plug, you need to use a mini DIN adapter.
2.7.2. PS/2 Mouse connector.
Connector:
CN 2
Type:
6 pin female.
This connector only supports a PS/2 mouse plug. If a PS/2 mouse is detected then IRQ 12
will be directed to
CN 2
.
2.7.3. Serial Port 1 (COM 1) and Serial Port 2 (COM 2)
Connector:
CN 3 (COM 1)/ CN 4 ( COM 2)
Type:
9 pin male/9 pin male
One serial port is available for a mouse and other serial devices.
(I/O addresses used are 3F8H/2F8H/3E8H/2E8H and IRQ3/IRQ4, selected by CMOS setup.)
2.7.4. Parallel Port Connector
Connector:
CN 5
Type:
25 pin female.
This parallel port is used by printers which support the SPP, EPP and ECP modes IRQ7 or
IRQ5 can be selected. The ECP mode will use either DMA 3 or DMA 1 (which can be se-
lected by the BIOS setup program).
2.7.5. Universal Serial Bus (USB) Port 1 & 2
Connector:
CN 6 (USB 1)/ CN 7 (USB 2)
Type:
4 pin female
Two USB ports are available for connecting USB devices. The mainboard is also equipped
with an expansion connector that supports four additional USB external connectors. (The
USB cable is not included with the mainboard).
Hard
ware
In
sta
llat
ion
CN 1: PS/2 KB
CN 2: PS/2 MS
CN 6: USB 1 CN 3: COM 1
CN 4: COM 2
CN 5: LPT
CN18: Game/MIDI Port
SPK-OUT
LINE-IN
MIC-IN
CN 7: USB 2
2.7. External Connectors
Hardware Installation
