PCL-740
PCL-741
PCL-743/745
PCL-746+
RS-232/422/485, Current-loop Communication Card
2-port RS-232, Current-loop Communication Card
2-port RS-422/485 Communication Cards
4-port RS-232/422/485 Communication Card
Features
RS-232, RS-422, RS-485 or current-loop interface
16C550 UART with 16-byte FIFO
Transmission speeds up to 921.6 kbps
Flexible I/O address and IRQ selection
IRQ: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15
Complete RS-232 modem control signals
Supports 4-wire or 2-wire operation for RS-422/485
Automatic RS-485 data flow control
Space reserved for termination resistors
Supports Windows
®
98/ME/2000/XP, Linux
Powerful and easy-to-use utility (ICOM Tools)
PCL-740
PCL-741
Introduction
The PCL-740 offers a versatile range of high speed interfacing options. You can switch its single port between the popular RS-232, long distance RS-422, multi-drop RS-485, or
noise-resistant current-loop. The card's 16C550 UART has an on-chip 16-byte FIFO buffer for faster and more reliable communication, especially under Windows.
The PCL-741 provides two isolated RS-232 or current-loop serial ports. You can configure each port individually to RS-232 or current-loop using onboard jumpers.
The card has two 16C550 UARTs with on-chip 16-byte FIFO buffers. The UARTs buffer data into 16-byte packets before sending it to the bus. This drastically reduces CPU load and
avoids data loss when the system is busy and cannot process the interrupt quickly. These FIFO buffers make the PCL-741 especially suitable for high speed serial I/O under Windows.
Onboard optical isolators protect your PC and equipment against damage from ground loops, increasing system reliability in harsh environments.
Specifications
General
Card Interface
Certifications
Connectors
Dimensions
Power Consumption
ISA
CE
PCL-740: 1 x DB9-M, 1 x DB25-M
PCL-741, PCL-743, PCL-745: 2 x DB9-M
PCL-746+: 1 x DB37-F
185 x 100 mm (7.3" x 3.9")
PCL-740: +5 V @ 180 mA max., ±12 V @ 20 mA max.
PCL-741: +5 V @ 300 mA (typical), +5 V @ 1.1 A max.
PCL-743,PCL-745:+5V@400 mA typical, 950 mA max.
PCL-746+: +5 V @ 800 mA typical, 1.5 A max.
±12 V @ 60 mA typical, 120 mA max.
PCL-740,PCL-741, PCL-743, PCL-745: 0.6 kg (1.3 lb)
PCL-746+: 1.1 kg (2.4 lb) (including cable)
5, 6, 7, 8
Tx, Rx, CTS, RTS, DTR, DSR, DCD, GND, RI
Tx+, Tx-, Rx+, Rx-
Tx+, Tx-, Rx+, Rx-, GND, CTS+, CTS-, RTS+, RTS-
Data+, Data-, GND
From 200H to 3F8H (for PCL-740/741/743/745)
From 000h to 3F8H (for PCL-746+)
3, 4, 5, 6, 7, 9, 10, 11, 12 or 15
PCL-740: 1, PCL-741: 2
PCL-743, PCL-745: 2
PCL-746+: 4
None, even, odd
PCI-740: RS-232/422/485, current-loop
PCI-741: RS232, current-loop
PCI-743, 745: RS-422/485
PCI-746+: RS-232/422/485
PCL-740, PCL-741: 50 bps ~115.2 kbps
(for RS-232/422/485)
Stop Bits
UART
50 bps~57.6 kbps (current-loop)
PCL-743, PCL-745: 50 bps ~ 921.6 kbps
PCL-746+: 50 bps ~ 115.2 kbps
1, 1.5, 2
PCL-743, PCL-745: 2 x 16C550 with 16-byte FIFO
PCL-746+: 4 x 16C550 16-byte FIFO
PCL-740: 1 x 16C550 with 16-byte FIFO
PCL-741: 2 x 16C550 with 16-byte FIFO
2500 V
DC
(PCL-741), 3000 V
DC
(PCL-745B/745S)
2500 V
DC
(PCL-743S/745S)
ICOM Tools
Windows 98/ME/2000/XP, Linux
Protection
Isolation Protection
EFT Surge Protection
Software
Bundled Software
Driver Support
Weight (Gross)
Communications
Data Bits
Data Signals
RS-232:
Current loop:
RS-422:
RS-485:
I/O Address
IRQ
Ports
Parity
Protocols
Environment
Operating Temperature
PCL-740,PCL-741,PCL-746+: 0 ~ 50° C (32 ~ 122° F)
PCL-743, PCL-745: 0 ~ 65° C (32 ~ 149° F)
Ordering Information
PCL-740
PCL-741
PCL-743B
PCL-743S
PCL-745B
PCL-745S
PCL-746+
PCL-746+/9
RS-232/RS-422/RS-485/current-loop serial interface
card
Isolated dual-port RS-232/current-loop interface card.
2-port RS-422/485 communication card
2-port RS-422/485 communication card with EFT
surge protection
2-port RS-422/485 communication card with isolation
protection
2-port RS-422/485 communication card with isolation
and EFT Surge Protection
4-port RS-232/422/485 communication card
(30cm DB37 to 4 DB25 cable included)
4-port RS-232/422/485 communication card
(30cm DB37 to 4 DB9 cable included)
Speed
Plug-in Communication
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