ADDI-DATA APCI-7300-3 Leaflet

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APCI-7300-3 – 1-port serial interface
APCI-7420-3 – 2-port serial interface
APCI-7500-3 – 4-port serial interface
APCI-7800-3 – 8-port serial interface
RS232, RS422, RS485, 20 mA Current Loop
Free mode configuration for each port 
through MX modules
With/without optical isolation 1000 V
128-byte FIFO buffer for each port
16C950 UART downward compatible
PCI 3.3 V or 5 V
The APCI-7xxx-3 communication boards are configured by 
inserting MX modules which the board identifies auto-
matically. The 1- to 8-port serial interfaces APCI-7xxx-3 can 
be used as universal PCI boards in 3.3 V or in 5 V systems, 
and in PCI or PCI-X systems. The serial interfaces can be 
configured through modules in the following modes: 
RS232, RS422, RS485 (with or without optical isolation) 
and 20 mA current loop (with optical isolation).
The MX modules with optical isolation allow a protection 
up to 1000 V for the use in noisy environments where 
earth loops can occur. The I/O lines are protected against 
short-circuits, fast transients, electrostatic discharge and 
high-frequency EMI. The interface is supported through a 
128-byte FIFO buffer for sending and receiving data and 
guarantees reliable operation at high transfer rates. 
Features
Asynchronous communication adapter
• 
PCI 3.3 V or 5 V
• 
Modular mounting through MX modules 
• 
1 socket for 1-port serial interface (APCI-7300-3) 
2 sockets for 2-port serial interface (APCI-7420-3) 
4 sockets for 4-port serial interface  
(APCI-7500-3 and APCI-7500-3/4C) 
8 sockets for 8-port serial interface (APCI-7800-3)
Can be configured as RS232, RS422, RS485 with/without 
• 
optical isolation, 20 mA Current Loop (active, passive), 
with optical isolation through separate MX modules
Automatic addressing through BIOS
• 
Automatic module identification
• 
128-byte FIFO buffer for sending and receiving data
• 
Programmable transfer rate
• 
5, 6, 7 or 8-bit character
• 
1, 1½ or 2 stop bits
• 
Parity: even, odd or none
• 
Automatic transmitter control for RS485 and 
• 
transmitter control through FIFO level
Common interrupt
• 
Safety features
MX modules available with optical isolation 1000 V
• 
Creeping distance IEC 61010-1 (VDE411-1)
• 
Protection against fast transients (Burst)
• 
Short-circuit protection for RS422 and RS485
• 
Detection of false start bits
• 
Internal diagnostic possibility, break, parity,  
• 
overrun and framing error
Applications
Industrial serial communication
• 
Data acquisition • Industrial process control
• 
Multi-user systems
• 
PLC interface
• 
Modem and printer control
• 
Multidrop applications
• 
Weighting devices
• 
...
• 
Software drivers
A CD-ROM with the following software and programming 
samples is supplied with the board.
Standard drivers for:
Windows (32-bit)/XP/2000/Server 2003: Standard COM driv-
ers. Windows 7 on request.
Drivers for Linux. Integrated in the kernel from 2.6.26.
Samples for the following compilers:
Microsoft VC++ 5.0
Visual Basic 5.0
Delphi 4
On request
MS-DOS, RTX
Free driver download on the web:
www.addi-data.com/download
PLC
PLC
Modem
Embedded 
system
Port 1
RS485
Port 3
TTY
20 mA 
Current 
Loop
Port 4
RS232
optically 
isolated
Port 2
TTY
20 mA 
Current 
Loop
Application example for APCI-7500-3
IPC
APCI-7500-3
APCI-7800-3
APCI-7500-3/4C
1 to 8-port serial interface, RS232, RS422, RS485, 
20 mA CL, modular mounting through modules 
32-bit
Also for 
CompactPCI™ 
See CPCI-7500
Also for
 
see APCIe-7xxx