Hardware Configuration Setting
ROBO-638 User’s Manual
2-6
CONNECTOR FUNCTION REMARK
J1
System reset
J2, J7
On-board 1-channel SCSI interface
Two 68-pin connector
J3
Standard 5-1/4” disk drive power
connector
4-pin connector
(pitch : 0.2 inch)
J4
IDE2 (Secondary) interface
J5
Floppy connector
J6
External speaker interface
J8
IDE1 (Primary) interface
J9
Parallel port connector
J10
Keyboard lock and power indicator
J11
COM1 serial port
2 x 5 shrouded header
J12
COM2 serial port
2 x 5 shrouded header
J13
ATX power control interface
Connect to Backplane
J14
ATX power button interface
Connect to Chassis
J15
IDE1/IDE2/SCSI active status report
LED indicator
J16
IrDA (infrared) port
Reserve 6-pin for FIR
J17
On-board Ethernet interface connector
RJ-45
J18
On-board VGA connector
D-SUB 15
J19
PS/2 mouse connector
6-pin Mini-DIN
J20
External keyboard interface
Connect to backplane
J21
Two-port USB interface
Special cabling
J22
PS/2 keyboard connector
6-pin Mini-DIN
J23
CPU FAN power connector
J24
Chassis FAN power connector
Connect to Chassis
U26
M-system Flash Disk
DIP 32-pin chip
U52
Right angle slot-1 connector
Pentium-II CPU
DIMM1 – 4
DIMM socket
3.3V SDRAM
Pin Assignments of Connectors
■
J1: Reset Header
PIN No. Signal Description
1
Reset
2
Ground
■
J3 : Standard 5-1/4” Disk Drive Power Connector
PIN No.
Signal Description
1
+12V
2
Ground
3
Ground
4
+5V
