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This interface module connects ABB Bailey INFI 90 controllers to RS-232 devices. It enables serial communication with programming terminals, printers, and HMIs. The unit mounts in any INFI 90 rack slot.
Technical specifications
| Parameter | Specification |
|---|---|
| Brand | ABB Bailey |
| Model | ABB Bailey INIIR01-232L |
| Product Family | INFI 90 |
| Category | Interface Module |
| Communication Protocol | RS-232 (asynchronous) |
| Number of Ports | 1 (one) RS-232 port |
| Connector Type | 9-pin D-sub (female) |
| Baud Rate | 300 to 19.2 kbit/s (programmable) |
| Data Bits | 7 or 8 bits |
| Parity | None, odd, or even |
| Stop Bits | 1 or 2 bits |
| Handshaking | RTS/CTS hardware flow control |
| Isolation | 500V DC (optical) |
| Component Count | Approximately 80 components |
| Integrated Circuits | 8 ICs (UART, drivers, optocouplers) |
| Power Supply | 24V DC from backplane |
| Current Consumption | 150 mA typical |
| Status Indicators | 3 x LEDs (PWR, TX, RX) |
| Test Points | 4 gold-plated test points |
| Energy Storage | None (no battery or capacitor) |
| Dimensions (L x W x H) | Approx. 20 cm x 10 cm x 3.5 cm |
| Weight | Approx. 0.35 kg |
| Operating Temperature | 0°C to 55°C |
| Mounting | INFI 90 rack slot |
Detailed Technical Analysis
This interface module provides a single RS-232 serial communication port for INFI 90 systems. It connects the controller to programming terminals for configuration and debugging. The module also links to serial printers for data logging applications. You can connect operator interface panels through this same RS-232 port.
Now let us examine its communication flexibility. The module supports baud rates from 300 to 19.2 kbit/s. You configure all parameters through the INFI 90 control software. The board includes hardware handshaking with RTS and CTS signals. Approximately 80 components populate both sides of the circuit board.
This interface module draws 150 milliamps from the 24V backplane supply. Three LEDs indicate power, transmit, and receive activity. The board contains no batteries or capacitors for energy storage. Four gold-plated test points allow signal verification with an oscilloscope. The module provides 500V DC optical isolation for noise immunity.
Installation and Configuration Guidelines
You insert this module into any available INFI 90 rack slot. Connect the serial cable to the 9-pin D-sub connector on the front panel. Use shielded serial cables for runs longer than 15 meters. The module automatically receives power from the backplane upon insertion.
Configure the communication parameters through the INFI 90 engineering software. Set the baud rate to match your connected device. The module stores its configuration in non-volatile memory. Always power down the rack before inserting or removing this module.
Practical Applications
Engineers use this interface module for INFI 90 system integration and repair. It connects legacy Bailey systems to modern programming laptops. This component also works in distributed control system upgrades. Its single RS-232 port suits point-to-point communication applications.
Summary of Features
To conclude, this RS-232 interface module supports baud rates up to 19.2 kbit/s. It weighs 0.35 kilograms and draws 150 milliamps at 24V. Choose ABB Bailey INIIR01-232L for reliable serial connectivity in INFI 90 systems.