Dual-Port Rs-422/485 Serial Interface Pc↔422/485 Serial Interface Converter

These Converters let you double the RS-422 or RS-485 devices connected to your PC—or interface up to 31 or 62 IC600C IC030C-R2 RS-485 devices. IC173C IC170C Key Features ith the Dual-Port RS-422/485 to support up to 32 drivers and 32 The interface installs in just Supports RS-422/485 WSerial Interface card, you can receivers on one line. minutes. Turn off the PC’s power interface connections. add bar-code readers, scales, drill The interface is easy to and disconnect the power cord, presses, time clocks, and other configure. Simply set the address then remove the PC case and Directly address up to devices to your PC—and you and IRQ via DIP switches and on- screw holding the blank metal slot 64 RS-485 devices from don’t need additional line drivers board jumpers. cover. Remove the blank metal your PC. or converters. It even interfaces Troubleshooting’s a breeze, slot cover. Insert the board, to factory- automation equipment. too. A utility software package is replace the slot cover, screw, and No line driver or The IC600C Card uses the included with your Card for quick PC case. Replace the PC case converter needed. 16550 UART chip which features a diagnostics. and reconnect the power cord. Each port occupies 8 programmable baud rate, data Or, choose the PC↔422/485 You’re ready to go! format, and interrupt control, and Serial Interface Converter to link Connect your RS-422/485 consecutive I/O a 16-byte FIFO. The IC173C Card up to 31 devices. Two models are factory automation equipment to locations and has base uses the 16850 UART, and has a available: your PC with one of these cards. addressing that’s user- 128-byte FIFO buffer. • IC030C-R2 features a 16550 selectable. And you can set each serial UART and a 16-byte FIFO port as COM1 or COM2, so it’s buffer. Full- or half-duplex compatible with most • IC170C has a 16850 UART operation. communications software and and a 128-byte FIFO buffer. Easy to install. languages. Drivers and receivers for RS-422/485 are provided on the Utility software serial port. included for The RS-422 mode runs point- diagnostics. to-point and supports up to 10 receivers, and the RS-485 mode has the electrical characteristics

15798 1. Add bar code readers, scales, drill presses, time clocks, and other devices to your PC—without additional line drivers or converters.

Technically Speaking ecause RS-422 and RS-485 are other types of interfaces. RS- can be active at any given • S2 sets the address for Bdifferential interfaces, they’re 422 signal levels range from 0 time). Port 2. to +5 volts. The standard does less susceptible to line noise, so About the UART Chip • Setting either switch “on” or not define a physical data integrity is never a problem. A UART (Universal Asynchronous “closed” corresponds to a “0” connector. • RS-422 is an Electronic Receiver/Transmitter) is an in the address, while leaving it Industries Association (EIA) • RS-485 is an EIA serial integrated circuit that converts “off” or “open” corresponds standard for a balanced interface standard for bytes from the computer bus into to a “1.” balanced, multipoint interface system with a high level of serial bits for transmission. Setting the Interrupts that incorporate tri-state noise immunity. It’s a Setting the interrupts on the card drivers providing high The 16550 UART features a 16- differential interface that is as simple as moving a jumper. defines voltage levels and tolerance to noise. Like RS- byte FIFO buffer for speeds of up • Move the jumper to the IRQ4 driver/receiver electrical 232, RS-485 is a differential to 115.2 kbps. The 16850 UART has setting for COM1. specifications. On this type of interface. It allows cable a 128-byte FIFO buffer for speeds interface, the difference in lengths up to 4000 feet (about of up to 460.8 kbps (sustained). • Move the jumper to the IRQ3 voltage between a pair of 1200 meters) and data rates up setting for COM2. Selecting the Address outputs or inputs defines logic to 10 Mbps. The signal levels Each serial port on the Interface levels. Contrast this to the RS- for RS-485 also range from 0 to occupies 8 consecutive I/I 232 interface, in which the +5 volts. This interface is ideal locations. DIP switches are used logic levels are defined as the for multi-drop or network to set the addresses for Ports 1 difference in voltage between environments, since it has a and 2. a single signal and a common tri-state driver (this allows the ground signal. Differential electrical presence of the • S1 sets the base address for interfaces are more immune to driver to be removed from the Port 1. noise or voltage spikes than line, so that only one driver

Specifications Protocol: Asynchronous Temperature: Operating: 0 to 50° C (32 to 122° F); Storage: -20 to 70°C Speed: IC600C, IC030C-R2: Up to (-4 to 158° F) 115.2 Kbps; IC173C, IC170C: 460.8 kbps (sustained); (maximum rate Relative Humidity: 90% depends upon software, CPU, MTBF: > 150,000 hours and cable length) MTTR: < 0.25 hour Connectors: IC600C, IC173C: (2) DB9 male; IC030C-R2, IC170C: Manufacturing: IPC 610-A Class-III Ordering Information (1) DB25 male standards adhered to with a 0.1 ITEM CODE visual AQL and 100% functional Communications Chip: IC600C, testing; Boards are built to UL® Dual-Port RS-422/485 Serial Interface Card IC030C-R2: 16550 UART; IC173C, 94V0 rating and are 100% IC170C: 16850 UART 16550 UART...... IC600C electrically tested. Boards are 16850 UART...... IC173C Maximum Data Distance: Up to solder mask over bare copper or 1219.2 m (4000 feet) tin nickel. PC↔422/485 Serial Interface Converters Modem Control Signals: RS-422: Power: From the PC bus 16550 UART ...... IC030C-R2 RTS and CTS Size: Half-card 16850 UART...... IC170C System Requirements: ISA bus You may also need… Shipping Weight: 2 lb. (0.9 kg) Modular Thumbscrew Adapter Kits For IC600C: DB9 Female to RJ-45 Female (8-Wire) ...... FA756 For IC030C-R2: DB25 Female to RJ-45 Female (8-Wire)...... FA771

15798 2.