5. Each Component Function
64 User’s Manual
RAS Functions
As RAS functions, the BOX-PC is equipped with watchdog timer,
remote reset, and general-purpose I/O functions. Each I/O can be
achieved with the RAS connector.
Table 5.17. RAS Connector
Signal
SPK
GND
TX +
TX -
RX +
RX -
NCOM
PO2/WDT
PO0
PO1
NCOM
PI1
PI2/IRQ
PCOM
PI0
Connector type
Pin No.
1
9
2
10
3
11
4
12
5
13
6
7
14
8
15
Function
External speaker signal
External speaker ground
RS-485 transmitting line
RS-485 receiving line
Minus common dedicated to PO2
General-purpose output or watchdog timer alarm output
General-purpose output
General-purpose output minus common
General-purpose input
General-purpose input or interrupt input
General-purpose input plus common
General-purpose input
15pin D-SUB(FEMALE) (DALC-J15SAF-20L9) JAE
*Fastening screw: No. 4-40UNC inch thread
8 1
915
RAS port address: 4000h~4001h
Note!
Pin 4 NCOM (minus common dedicated to PO2) and pin 6 NCOM
(minus common shared by PO0 and PO1) are electrically separated
from each other.
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