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5. Each Component Function
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.
Connector type
RAS Connector
15pin D-SUB(FEMALE) (DALC-J15SAF-20L9) JAE
8
1
15
Pin No.
Signal
9
Function
1
SPK
External speaker signal
9
GND
External speaker ground
2
TX +
RS-485 transmitting line
10
TX -
3
RX +
11
RX -
4
12
NCOM
RS-485 receiving line
Minus common dedicated to PO2
PO2/WDT General-purpose output or watchdog timer alarm output
5
PO0
13
PO1
6
NCOM
7
PI1
14
PI2/IRQ
8
PCOM
15
PI0
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
*Fastening screw: No. 4-40UNC inch thread
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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User’s Manual