Page 1 of 6 AR-B1790 Manual
AR-B1790 MANUAL
Version 1.01
1. SETTING UP THE SYSTEM
1.1 PACKING LIST
The quick setup manual
AR-B1790 Embedded ATX Single Board
Software utility CD x 1
FDD Cable x 1 (Optional)
5.25” IDE HDD ATA100 Cable x 1 (Optional)
2.5” IDE HDD Cable x 1 (Optional)
Serial port Cable x 3 (Optional)
1.2 PS2 KEYBOARD & MOUSE (PS/1)
1.3 PARALLEL & COM1 & VGA PORT (PT1)
1.4 SERIAL PORT (COM2, COM3, COM4)
1
10 2
9
PIN Signal
1 KBDATA
2 NC
3 GND
4 VCC
5 KBCLK
6 NC
7 MSDATA
8 NC
9 GND
10 VCC
11 MSCLK
12 NC
PIN Signal PIN Signal
1 /DCD 2 /DSR
3 RXD 4 /RTS
5 TXD 6 /CTS
7 /DTR 8 /RI
9 GND 10
COM
VOLTAGE
PRINT
COM1 VGA
1 5
6 9
PS2 Mouse
PS2 Ke
y
Board
PS/1
7
8
9
10
11
12
1
2
3
4
5
6
Page 2 of 6 AR-B1790 Manual
1.5 USB CONNECTOR (USB1, USB2, USB3)
1 2 3 4
5 6 7 8 1.VCC
2.DATA0+
3.DATA0-
4.GND
5.VCC
6.DATA1+
7.DATA1-
8.GND
USB1&USB2
USB3
1 9
2 10
1.VCC 6.DATA3+
2.GND 7.GND
3.DATA2- 8.DATA3-
4.GND 9.GND
5.DATA2+ 10.VCC
1.6 ATX POWER CONNECTOR (PWR1)
11
1
10
20
1.7 POWER CONNECTOR (PWR2)
3
4 2
1
1.8 FAN POWER CONNECTOR
(FAN1, FAN2, FAN3)
3 2 1
FAN1 FOR CPU FAN
FAN2 FOR SYSTEM FAN
FAN3 FOR CASE FAN
1.9 MINI PCI SLOT (PCI1)
On board one mini PCI slot (PCI1)
1.10 PCI SLOT (PCI2)
On board one PCI slot (PCI2)
1.11 IDE DISK DRIVE CONNECTOR (IDE1, IDE2)
IDE1
1 39
2 40
Pin Signal Pin Signal
1 -RESET 2 GROUND
3 DATA 7 4 DATA 8
5 DATA 6 6 DATA 9
7 DATA 5 8 DATA 10
9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20 N.C
21
PDDREQ
22 GROUND
23
-PDIOW
24 GROUND
25
-PDIOR
26 GROUND
27
PIORDY
28 GROUND
29
-PDDACK
30 GROUND
31
IRQ14
32
N.C
33
PDA1
34
PD66/100
35
PDA0
36
PDA2
37
-PDCS1
38
-PDCS3
39
HLEDP
40
GROUND
IDE2
43
44
1
2
PIN Signal PIN Signal
3.3V 3.3V
3.3V -12V
GND GND
5V PSON
GND GND
6 5V 16 GND
7 GND 17 GND
8 PW-OK 18 -5V
9 5VSB 19 5V
10 12V 20 5V
PIN Signal PIN Signal
GND +12V
GND +12V
PIN Signal
1 GND
2 +12V
3 SENSE
Pin Signal Pin Signal
1 -RESET 2 GROUND
3 DATA 7 4 DATA 8
5 DATA 6 6 DATA 9
7 DATA 5 8 DATA 10
9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20
N.C
21
DDREQ
22 GROUND
23
-SOIOW
24 GROUND
25
-SOIOR
26 GROUND
27
SIORDY
28
GROUND
29
-SDDACK
30
GROUND
31
IRQ1
32
GROUND
33
SDA1
34
SD66/100
35
SDA0
36
SDA2
37
-SDCS1
38
-SDCS3
39
HLEDS
40
GROUND
41
VCC
42
VCC
43
GROUND
44
N.C
Page 3 of 6 AR-B1790 Manual
1.12 FLOPPY DRIVE CONNECTOR (FDD1)
33
34
1
2
1.13 DUAL ETHERNET PORT (PT3)
1.14 IRDA HEADER (IR1)
1
5
1.15 CLEAR CMOS (JP6)
1
3
1.16 FRONT PANEL (JP7)
2 22
1 21
1.17 DUAL LVDS CONNECTOR (LVDS1, LVDS2)
1 25
2 26
LVDS1
Pin Signal
1-33(odd) GROUND
2 DRVEN 0
4 NOT USED
6 DRVEN 1
8 -INDEX
10 -MOTOR ENABLE 0
12 -DRIVE SELECT 1
14 -DRIVE SELECT 0
16 -MOTOR ENABLE 1
18 -DIRECTION
20 -STEP OUTPUT PULSE
22 -WRITE DATA
24 -WRITE ENABLE
26 -TRACK 0
28 -WRITE PROTECT
30 -READ DATA
32 -SIDE 1 SELECT
34 DISK CHANGE
Pin
Signal
Pin
Signal
1 TX+ 5 Not Used
2 TX- 6 RX-
3 RX+ 7 Not Used
4 Not Used 8 Not Used
PIN Signal
1 VCC
2 NC
3 IRRX
4 GND
5 IRTX
JP6 FUNCTION
1-2 ON
Normal Operation
(Factory Preset)
2-3 ON Clear CMOS
PIN Signal PIN Signal
1 5VSUS 2 VCC
3 POWER BUTTON 4 POWER LED
5 N.C 6 N.C
7 GREEN BUTTON 8 5VSB
9 GND 10 SUSPEND LED
11 N.C 12 N.C
13 VCC 14 5V
15
PRIMARY HDD ACT
LED
16
EXTERNAL
SPEAKER
17 VCC 18 N.C
19 SECONDARY 20 RESET
21 N.C 22 GND
PIN FUNCTION
1-3 POWER BUTTON
7-9 GREEN BUTTON
13-15 PRIMARY HDD ACT LED
17-19 SECONDARY HDD ACT LED
2-4 POWER LED
8-10 SUSPEND LED
14-16 SPEAKER
20-22 RESET
PIN Signal PIN Signal
1 TXOUT0- 14 GND
2 GND 15 TXCLK+
3 TXOUT0+ 16 VTX12
4 GND 17 TXOUT3-
5 TXOUT1- 18 VTX12
6 LVDSVCC 19 TXOUT3+
7 TXOUT1+ 20 GND
8 LVDSVCC 21 VTKBP
9 TXOUT2- 22 N.C
10 N.C 23 LVDSVCC
11 TXOUT2+ 24 N.C
12 GND 25 LVDSVCC
13 TXCLK- 26 N.C
1
8
Page 4 of 6 AR-B1790 Manual
LVDS2
1.18 LVDS PANEL VOLTAGE SELECT (JP8)
1 2
6 5
1.19 CONTROL LVDS PANEL BACK-LIGHT (JP9)
3 2 1
1.20 COM VOLTAGE SELECT
(JP11, JP12, JP13)
1 2
6 5
1.21 COM3 RS-232/RS-485 SELECT
(JP19, JP20)
(1) RS-485 Terminator Select (JP15)
JP15 (ON)
When there is only one line the setting should be left off
(please take off the jumper), if multiple blocks are used
on a single line this should be set to “ON”(place a jumper)
in order to properly terminate the connection for better
transmission
(2) RS-485 Header (JP18)
1
2
3
PIN Signal PIN Signal
1 TXOUT4- 14 GND
2 GND 15 TXCLK2+
3 TXOUT4+ 16 VTX12
4 GND 17 TXOUT7-
5 TXOUT5- 18 VTX12
6 LVDSVCC 19 TXOUT7+
7 TXOUT5+ 20 GND
8 LVDSVCC 21 VTKBP
9 TXOUT6- 22 N.C
10 N.C 23 LVDSVCC
11 TXOUT6+ 24 N.C
12 GND 25 LVDSVCC
13 TXCLK2- 26 N.C
JP8 VOLTAGE
1-3 2-4
ON
+5V
3-5 4-6
ON
+3.3V
(Factory Preset)
PIN Signal
1 +12V
2 GND
3 EBLT
PIN Signal PIN Signal
1
COM
VOLTAGE
2 +12V
3
COM
VOLTAGE
4 +5V
5
COM
VOLTAGE
6
GND
(Factory Preset)
JUMPER FUNCTION
JP19
1
3
5
1
2
3
JP20
RS-232
FACTORY PRESET
JP19
1
3
5
1
2
3
JP20
RS-485
PIN Signal
1 N485+
2 N485-
3 GND
FACTORY PRESET
JP11 SELECT COM1 PIN 10 VOLTAGE
JP12 SELECT COM2 PIN 10 VOLTAGE
JP13 SELECT COM3 PIN 10 VOLTAGE
Page 5 of 6 AR-B1790 Manual
1.22 COM4 RS-232/RS-485 SELECT
(JP21, JP22)
(1) RS-485 Terminator Select (JP16)
JP16 (ON)
When there is only one line the setting should be left off
(please take off the jumper), if multiple blocks are used
on a single line this should be set to “ON”(place a jumper)
in order to properly terminate the connection for better
transmission
(2) RS-485 Header (JP17)
1
2
3
1.23 COMPACT FLASH (CF1)
Compact Flash (CF1) and IDE 2 share the same channel.
Since the Compact Flash on this board is always in
Master mode, so if a Compact Flash card is installed in
the socket, please make sure the drive connected to the
IDE 2 connector is set to Slave mode.
1.24 GAME PORT AND AUDIO CONNECT (PT2)
Link-Out MIC
Link-In
1.25 GPIO PORT (GPIO1)
17
18
1
2
PIN DEFINE PIN DEFINE
1 GPI0 2 GPO0
3 GPI1 4 GPO1
5 GPI2 6 GPO2
7 GPI3 8 GPO3
9 GPI4 10 GPO4
11 GPI5 12 GPO5
13 GPI6 14 GPIO6
15 GPI7 16 GPO7
17 VCC5V 18 GND
1.26 CPU SPEED SELECT (JP5)
JUMPER FUNCTION
JP21
1
3
5
1
2
3
JP22
RS-485
JP21
1
3
5
1
2
3
JP22
RS-232
FACTORY PRESET
PIN Signal
1 N485+
2 N485-
3 GND
JP5 SPEED
1-2
CPU SELECT
(Factory Preset)
2-3 100MHz
EMPTY 133MHz
FACTORY PRESET
1
2
3
Page 6 of 6 AR-B1790 Manual
1.27 CF VOLTAGE SELECT (JP23)
1
2
3
1.28 KB/MS VOLTAGE SELECT (JP2)
1.29 CD-IN CONNECTOR (CD_IN)
Note:
If the content in setting is inconsistent with the
Software utility CD, please refer to the setting as the
priority.
JP23 VOLTAGE
1-2 +3.3V
2-3
+5V
(Factory Preset)
JP2 VOLTAGE
1-2 +5V
2-3
+5V SB
(Factory Preset)
PIN Signal
1 CD_L
2 GND
3 GND
4 CD_R
1
4
1
2
3
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