Advantech AIMB-787, Руководство для стартапов, Страница: 3 / 4

AIMB-787 Startup Manual 3
PSON1: ATX/AT mode selection
Closed Pins
Result
1-2 AT mode
2-3 *ATX mode
* Default
AT mode *ATX mode
JUSB_1 (rear USB), JUSB_2 (onboard USB): USB
power source switch b5V and +5V_DUAL
Closed Pins Result
1-2 *USB +5V_DUAL power
2-3 USB +5V power
* Default
*USB +5 V_DUAL power USB +5 V power
JPCICLK1: PCI clock selection
Closed Pins Result
1-2 66 MHz
2-3 *33 MHz
* Default
66 MHz 33 MHz
SMB1 (clock), SMB2 (data): PCIe SMBus connec-
tion setting
Closed Pins Result
1-2 *Enable PCIe SMBus connection
2-3 Disable PCIe SMBus connection
* Default
*Enable PCIe SMBus connection Disable PCIe SMBus connection
Note! Both SMB1 and SMB2 jumpers should be
switched to the same setting, either 1-2 closed or
2-3 closed.
1 2 3 1 2 3
1 2 3 1 2 3
1 2 3
1 2 3
JSETCOM3: COM3 RS-232/422/485 jumper setting
Closed Pins
Result
5-6, 7-9, 8-10,
13-15, 14-16
*RS-232
3-4, 9-11,
10-12, 15-17,
16-18
RS-422
1-2, 9-11,
10-12, 15-17,
16-18
RS-485
* Default
Note!
BIOS setting change is necessary if RS-422 or RS-485
is selected. Please refer to Chapter 3 of user manual for
further setting.
JT1(TX signal), JR1(RX signal): COM3 RS-422/485
termination resistor
Closed Pins Result
1-2 Disable termination
2-3 *Enable termination
* Default
Disable termination *Enable termination
*RS-232
RS-422
RS-485
Jumpers and Connectors (Cont.)
Jumpers and Connectors (Cont.)