Panel PC USER’S MANUAL
Intel Platform, High Performance PPC
28
3.3.4 Parallel Port Connector (CN4)
Signal PIN
Signal
Line printer strobe
1
14
AutoFeed
PD0, parallel data 0
2
15
Error
PD1, parallel data 1
3
16
Initialize
PD2, parallel data 2
4
17
Select
PD3, parallel data 3
5
18
Ground
PD4, parallel data 4
6
19
Ground
PD5, parallel data 5
7
20
Ground
PD6, parallel data 6
8
21
Ground
PD7, parallel data 7
9
22
Ground
ACK, acknowledge
10
23
Ground
Busy 11
24
Ground
Paper empty
12
25
Ground
Select 13
N/A
Ground
3.3.5 RJ45 and 2 USB Ports (CN6)
CN6 is a stacked connector with RJ45 on top and 2 USB ports at the bottom.
3.3.6 COM1 and COM2 Serial Ports (CN7)
CN7 is a stacked connector with COM1 on top and COM2 at the bottom.
Signal PIN
Signal
DCD, Data carrier detect
1
6
RXD, Receive data
TXD, Transmit data
2
7
DTR, Data terminal ready
GND, ground
3
8
DSR, Data set ready
RTS, Request to send
4
9
CTS, Clear to send
RI, Ring indicator
5
10
Not Used
COM2 is jumper selectable for RS-232, RS-422 and RS-485.
PIN
Signal
RS-232
RS-422
RS-485
1
DCD
TX-
DATA-
2
RX
TX+
DATA+
3
TX
RX+
NC
4
DTR
RX-
NC
5
Ground
Ground
Ground
6
DSR
RTS-
NC
7
RTS
RTS+
NC
8
CTS
CTS+
NC
9
RI
CTS-
NC
10
NC
NC
NC
