2-port High-speed RS-422/485 PCL-743B/S COMM Cards 2-port High-speed RS-422/485 PCL-745B/S COMM Cards w/ Isolation 1 IPPC & AWS Features Features § Two independent RS-422/485 serial ports § Provides 3000 V isolation (PCL-745B/745S) 2 DC TPC § Provides 2500 V surge protection (PCL-743S/745S) DC § 16C550 UARTs with on-chip 16-byte FIFO § Transmission speeds up to 921.6 Kbps 3 § I/O address and interrupt selectable FPM § Wide IRQ selection: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15 § Supports 2 wire or 4 wire operation 4 § Supports Tx, Rx, RTS, and CTS signals ATM § Automatic RS-485 data flow control or RTS control § Termination resistors jumper enable/disable 5 § Space reserved for optional surge protection on data lines (PCL-743B/745B) DA&C § Supports standard DOS COM1, COM2, COM3, and COM4 § Supports Windows 95/98/NT/ME/2000/XP, Linux (ICOM utility), DOS 6 cPCI 7 Introduction ADAM-3000 The PCL-743/745 series cards provides two RS-422/485 serial ports. Each port utilizes a 16C550 UART with an on-chip 16-byte FIFO buffer for reliable, high-speed serial I/O. The UART buffer divides data into 16-byte packets before sending them onto the bus. This drastically reduces the CPU load and avoids data loss due to failure to respond to the 8 interrupt request in time. The UART is especially useful for high speed serial I/O under Windows. eConnectivity The PCL-745B/745S card differs from the PCL-743B/743S card in that the former uses onboard optical isolators to protect your PC and equipment against damages from ground loops, increasing system reliability in harsh environments. To further increase reliability, the PCL-743S/745S offers surge protection technology, protecting your system from abrupt 9 high voltage surges (up to 2500 V) such as those caused by lightning. ICOM 10 Specifications Pin Assignments Software § Ports 2 § UART 2 x 16C550 with 16-byte FIFO 11 TX- DATA- § Signal Support TxD+, TxD-, RxD+, RxD-, CTS+, CTS-, RTS+ and RTS- UNO-2000/3000 RTS- TX+ DATA+ § I/O Address From 200H to 3F8H RTS+ RX+ § IRQ 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15 CTS+ RX- 12 § Isolation Voltage 3000 V (PCL-745B/745S) CTS- DC VBOX GND GND § Surge Protection 2500 V (PCL-743S/745S) DC § Power Consumption +5 V @ 400 mA typical, 950 mA max. RS-422 RS-485 13 § Connectors Dual DB-9 male connectors ADAM-4000 § Operating Temperature 0 ~ 65° C (32 ~ 149° F) § Dimensions 185 x 100 mm (7.3" x 3.9") 14 Applications § Shipping Weight 0.6 kg (1.3 lbs) ADAM-5000 § PLC monitoring and control Ordering Information § Serial communication interface for harsh environments 15 § PCL-745B 2-port RS-422/485 communication card with isolation § Data entry terminals ADAM-6000 protection § Remote data acquisition and control systems § PCL-745S 2-port RS-422/485 communication card with isolation § Instrument controller and distributed control systems 16 and surge protection ADAM-8000 § PCL-743B 2-port RS-422/485 communication card § PCL-743S 2-port RS-422/485 communication card with surge protection Industrial Communication Online Download www.advantech.com/products 9-14 9-15