2. Installation
2.5.4 Serial Ports (COM1, COM2, 9-pin Male Connector)
The two serial ports (COM1 & COM2) can be used for pointing
devices or other serial devices. See
Onboard Serial Port
in
Chipset
Features Setup
in the BIOS setup software to configure.
2.5.5 AT & ATX Power Supply Connectors
J23 is a standard 12-pin AT-type or PS/2 type socket. Be sure to
attach the two connectors with the four black wires next to each other,
at the centre. J12 is a standard ATX-type power connector. (The
ATX power connector can
only
be inserted the correct way.)
EP-PT21 User’s Manual
i
COM1 Port
J23 :
AT Power
Connector
J12 :
ATX Power
Connector
Keyhold
COM2 Port
Black Wires
at
C
enter
J11 :
J15 :