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SPDIF1: Digital Audio Output (21)
Connector type: 2.54mm pitch 1x4-pin headers.
Pin
Description
1
2
3
4
1
+5V
2
N/C (Key)
3
SPDIF_O
4
GND
AUDIO1: AC97 AUDIO Connector (22)
Connector type: double stacks audio jacks (Stereo
ø3.50).
Pink: Mic
Green: Line Out
COM1, COM2: Serial Port Connectors (23)
Connector type: Double stacks D-Sub 9-pin male.
Pin
Desc.
Pin
Desc.
1
5
9
6
1
5
9
6
1
DCD#
6
DSR#
2
RXD
7
RTS#
3
TXD
8
CTS#
4
DTR#
9
RI#
5
GND
Note:
The COM1 port’s pin-1 could be selected by JV1
respectively to +5V or DCD#.
LAN1, LAN2: 1 x RJ-45 + 2 x USB (24, 25)
Connector type: RJ-45 + double stacks USB type A
connector.
LAN (RJ-45)
LED
LED
LAN
USB
USB
8 7 6 5 4 3 2 1
1 2 3 4
1 2 3 4
Pin
Desc.
Pin
Desc.
1
MDI0+ 5
MDI2+
2
MDI0- 6
MDI2-
3
MDI1+ 7
MDI3+
4
MDI1- 8
MDI3-
USB (USB type A
connector)
Pin
Desc.
1
+5V
2
USB-
3
USB+
4
GND
CON1: RS-422/485 Output Connector
(17)
Connector type: 2.00mm pitch 1x4 box wafer
connector.
Pin
RS-422
RS-485
1
2
3
4
1
TX+
DATA+
2
TX-
DATA-
3
RX+
N/C
4
RX-
N/C
INV1: LCD Inverter Connector (18)
Connector type: 2.00mm pitch 1x5 box wafer
connector.
Pin
Description
1
2
3
4
5
1
+12V
2
GND
3
Backlight on/off
4
Brightness control
5
GND
LPT1: Parallel Port Connector (19)
Connector type: 2.00mm pitch 2x13-pin headers.
(Share w/ FDD connector)
Pin
Description
Pin
Description
1
10
2
20
1
STB#
2
AFD#
3
PTD0
4
ERROR#
5
PTD1
6
INIT#
7
PTD2
8
SLIN#
9
PTD3
10
GND
11
PTD4
12
GND
13
PTD5
14
GND
15
PTD6
16
GND
17
PTD7
18
GND
19
ACK#
20
GND
21
BUSY
22
GND
23
PE
24
GND
25
SELECT
26
N/C
Содержание ITX-i945EC
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