Automatic Data Direction Control for RS-485
To ease the 2-wire RS-485 half-duplex control, Automatic Data Direction Control intelligence is built on each Industio CI-134 board. Eliminating the need of software interference. Hence, the applications can manage the RS-485 port without extra code to control the half-duplex protocol.
Termination Resistors Ready for RS-422/RS-485
Termination Resistors are already installed on the Industio CI-134 boards and no more headaches for finding proper resistors and connecting them for impedance matching problem. More details are in chapter, “Connection Cable and Cable Wiring”.
Surge/Isolation Protection
To meet the demand of high reliability in industrial environment and to prevent the boards from damage caused by lighting or high potential voltage, an optical isolation option (2KV) and surge block option (2KV) are available. This is critical to harsh environment such as factory.
ASIC Design, Compact Size
The Industio CI-134 Series is equipped with MOXA customer-designed ASIC chip, which replaces lots of conventional IC and hence reduces the board to half-size, increase the operation performance, and lower the failure rate of the board. Full range of I/O addresses and IRQ numbers are available. In addition, with on-boar d EEPROM for storing the configuration data, the family is designed without jumper or switch. These features make each port on the board truly independent to any other port and thus compatible with most existing non-intelligent boards. Because the family is so flexible in hardware configuration, it is compatible virtually with all kinds of other manufacturer's non-intelligent multiport boards using 16550 UART.
CAP Address
Instead of using traditional jumper or switch for IRQ and I/O address settings, hardware configuration of each port is easily set by DOS utility, Io-ir q.exe, which read and write the on-board EEPROM for configuration information through the CAP (Configur ation Access Por t) addr ess. The CAP address is the only channel via
1-2Industio CI-134 Series User’s Manual
