PCL-844+
Features
8-port Intelligent RS-232/422
ISA Communication Card
RISC Processor (TMS 320)
512 KB dual-port RAM
Transmission speed up to 921.6 kbps with eight ports on-line
Complete RS-232 modem control signals
Maps to just 16 KB of system memory. Choose one of six addresses from
C8000 to DC000.
Many IRQ options: 2, 3, 4, 5, 7, 10, 11, 12 or 15
Easy-to-use menu driven installation program
LEDs on connection box let you monitor the TxD/RxD status of any port
Links to peripherals up to 1200 m (4000 ft) from controller (RS-422)
Surge protection: 2500 V
ESD
, 2000 V
EFT
(Optional)
Introduction
The intelligent PCL-844+ was designed as a 8-port RS-232 or RS-422 interface card for lab and industrial applications where a PC needs to communicate with terminals, modems,
or other instruments. RS-422 applications use the optional Opt-8F/8Z 8-port RS-232 to RS-422 converter, shown on the following page. You can install up to four PCL-844+ cards
for a total of 32 ports in any AT/lSA bus-based PC.
The PCL-844+ card has an on-board RISC processor that takes over the communications load from the host PC. When you are processing large amounts of data from multiple ports,
servicing the interrupts alone consumes a large percentage of the capacity of your computer's CPU. The PCL-844+ serves as a high speed, dedicated interrupt processor. Its CPU
directly controls the board's CD180 RISC-based UART, guaranteeing 921.6 kbps performance of over eight high-speed data ports.
PCL-844+ is virtually a self contained computer in its own right. It contains 512 KB of dual-port RAM which you can use to store and run programs. The dual-port RAM maps into
the host system's address space to give you the fastest possible data transfers between PCL-844+ and the PC memory.
When the PCL-844+ initializes, it downloads the driver software (which functions like a PC's BIOS) into on-board SRAM. This improves performance and makes version upgrading
easy, with no hardware redundancy.
Specifications
Board
Number of Ports
Processor
Dual-ported RAM
SRAM
UART
Interrupt
Maximum Ports in
One System
Operating Temperature
Power Consumption
Weight
8
RISC, TI TMS320C203-57
512 KB
16 KB
RISC-based CD180
2, 3, 4, 5, 7, 10, 11, 12 or 15
32
0 ~ 55° C (32 ~ 131° F)
+5 V @ 155 mA, +12 V @ 110 mA, -12 V @ 160 mA
0.8 kg (1.8 lb)
TxD, RxD, RTS, CTS, DTR, DSR, DCD and GND
Asynchronous full duplex
50 bps ~ 921.6 kbps
5, 6, 7, 8
1, 1.5, 2
Even, odd or none
Ordering Information
PCL-844+
Opt8A
Op8B
0pt8C
Opt8H
8-port Intelligent RS-232/422 Card, with ISA bus
8-port RS-232 (DCE) connection box with female
DB25 connectors
8-port RS-232 (DTE) connection box with male DB25
connectors
8-port RS-232 connection cable with male DB25
connectors
8-port RS-232 connector cable with male DB9
connector (1m length)
RS-232 Interface
Signals
Mode
Communication Speed
Data Bits
Stop Bits
Parity
Online Download
www.advantech.com/products
All product specifications are subject to change without notice
Last updated : January 2005
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