Acrosser AR-B1690 - Manual (Page 22)

AR-B1690 User’s Guide
22
2.2.33 Ethernet RJ-45 Connector (LAN1)
The system supports onboard network connectivity. To utilize this function, install the network driver from the
utility diskette, and connect the cable to the following RJ-45 header.
1 8
PIN (CN8) FUNCTION
1 TPTX+
2 TPTX
-
3 TPRX+
4 Not
Used
5 Not Used
6 TPRX-
7 Not
Used
8 Not Used
2.2.34 DRAM Configuration (DIMM1, DIMM2)
It can assemble 16/32/64/128/256/512MB 168 pin DIMM Module Memory. When you set up 168-pin DIMM Module
Memory, AR-B1690 will auto-detect DRAM, and adopt correct save in order to make memory work till the best
situation.
Caution:
Set up 168-pin DIMM Module Memory, please insert into slot vertical, if the direction is wrong and it leads
to failure, please confirm the direction is right.
2.2.35 ATX Power Connector (ATX1)
10
20 11
1
2.2.36 SYSTEM POWER SELECT (J24)
Assume user uses AT insert Jumper at J24 Pin for ATX power Jumper is not required.
J24
JUMPER POWER NOTE
ON AT
OFF ATX Factory Preset
1. 3.3V 11. 3.3V
2. 3.3V 12. –12V
3. GND 13. GND
4. 5V 14. PS-ON
5. GND 15. GND
6. 5V 16. GND
7. GND 17. GND
8. PW-OK 18. –5V
9. 5VSB 19. 5V
10. 12V 20. 5V