10
U16
HT6571/GD75232/RS-232 Buffer
NC
RN85
NC
0 ohm resistor network
RN86
Nc
0 ohm resistor network
CN3: COM2
Pin 1
DCD
Pin 2
RXD
Pin 3
TXD
Pin 4
DTR
Pin 5
GND
Pin 6
DSR
Pin 7
RTS
Pin 8
CTS
Pin 9
RI
Pin 10
VCC
The regular COM port is D-type 9 pin connector which doesn’t has the Pin10.
The Pin10 was connector to VCC via a inductor L44.
The TTL-Level COM port is available with the following Engineer change.
RS232 Level (+12V/-12V)
TTL-Level (5V)
U18
HT6571/GD75232/RS-232 Buffer
NC
RN81
NC
0 ohm resistor network
RN83
Nc
0 ohm resistor network
CN6: PS/2 Keyboard and Mouse Connector
Pin 1
Keyboard Data
Pin 2
Mouse Data
Pin 3
GND
Pin 4
VCC
Pin 5
Keyboard Clock
Pin 6
Mouse Clock
Note: The Keyboard and Mouse are implemented into a 6pin mini-dip connector.
The PS2 keyboard can be connected directly to CN6 to work properly. However PS2 mouse can’t
be connected to CN6 to work. An external Y-cable is needed for PS2 mouse connection.
With Y-cable connection, the user can use the PS2 keyboard and mouse at the same time.
JP_R6: Modem-Wakup Interface
Pin 1
5VSB
Pin 2
GND
Pin 3
RI#
CN4 USB Connector (Front Side, Internal Connector)
Pin 1
VCC
Pin 2
VCC
Pin 3
USB-
Pin 4
USB-
Summary of Contents for 6086N2 VIA C3 SERIES
Page 6: ...5 Board Diagram...
