AR-B1552 User
’
s Guide
18
3.2.5 Keyboard & Mouse Connector (KM)
1 KDT
3 GND
2 MDT
6 MCLK
4 VCC
1
2
3
4
5
6
5 KCLK
KM
Front View
3.2.6 USB Connector (USB1)
1
2 10
4 6 8
3 5 7 9
3.2.7 LED Header (LED1)
LED1
1
2
3
3.2.8 COM1
--- Used RS232 & RS485
C O M 1
9
8
7
6
5
4
3
2
1
--- RS485 Terminator Select (JP6)
P3
P1
1
3
2
RS-232
Factory Preset
1
3
2
RS-485
A
C
B
A
C
B
OFF
Factory Preset
1
2
1
2
ON
1. USBVCC1
2. USBVCC2
3. USBD1F-
4. USBD2F-
5.
6.
7. GND
8. GND
9. GND
10. GND
1. HDLED
2. CFLED
3. P/WLED
