Contec SCP-8550-LLV, Руководство пользователя

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6. RAS Functions
SCP-8550-LLV
31
6. RAS Functions
A RAS port is provided for use with the RAS-PRINTER bracket mounted. This port offers watchdog
timer, remote reset, and general-purpose I/O RAS functions.
Table 6.1. RAS Functions
1 8
9
15
15 pin D-SUB (Female)
Pin No. Signal Function
1 SPK External speaker signal
9 GND External speaker ground
2 N. C.
10 N. C.
Reserved
3 N. C.
11 N. C.
Reserved
4 NCOM Minus common dedicated to PO2
12 PO2 / WDT General purpose output or watchdog timer alarm output
5 PO0
13 PO1
General purpose output
6 NCOM General purpose output minus common
7 PI1 General purpose input
14 PI2 / IRQ General purpose input or interrupt input
8 PCOM General purpose input plus common
15 PI0 General purpose input
* Fastening screw: No 4-4UNC inch thread
port address: 4000h - 4010h
CAUTION
4 Pin NCOM (minus common dedicated to PO2) and 6 pin NCOM (minus common shared by PO0
and PO1) are electrically separated from each other.