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1.
Introduction
The PIO-D56/PIO-D24 provides 56/24 TTL digital I/O lines. The PIO-
D56 consists of one 24-bit bi-directional port, one 16-bit input port and one 16-
bit output port. However, PIO-D24 only contains the 24-bit bi-directional port.
The 24-bit port supports three 8-bit groups, which are PA, PB and PC,
respectively. Each 8-bit group can be individually configured to function as
digital input or output port. Each group in a 24-bit bi-directional port is
configured as digital inputs once the power is turned on or if a reset has been
executed.
DB-24PD is the daughter board, which is designed to connect the input
port for either isolation purposes or to interface to the output port for relay
control. PIO-D24 has one D-sub connector. However, The PIO-D56 contains
one D-sub connector and two 20-pin flat cables. The flat cable can be
connected to an ADP-20/PCI adapter. The adapter can be fixed onto the
chassis. This product can be installed into a 5V PCI bus and supports actual
"Plug & Play" technology.
1.1
Features
• PCI bus
• Up to 56/24(PIO-D56/PIO-D24) digital I/O channels lines
• All I/O lines buffered on the board
• 3 Eight-bit groups independently selectable for I/O on 24-bit port
• Input / Output ports can be configured via software control
• Double side SMD, short card.
• Connects directly to DB-24PR, DB-24PD, DB-24RD,
DB-24PRD, DB-16P8R, DB-24POR, DB-24SSR, DB-24C or any OPTO-22
compatible daughter board
• 4 interrupt sources: P2C0, P2C1, P2C2, P2C3
• One DB37 connector, two 20-pin flat cable connectors (only for PIO-D56)
• High driving capability
• Automatically detected by Windows 95/98/2000/XP
• No base address or IRQ switches to set
PIO-D56/PIO-D24 User's Manual (Ver.2.3, JUN/2004, PPH-005-23) ---- 4
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