Comprehensive Product Summary – Moxa Industio CI‑132I Industrial Serial Board

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### 1. Product Overview

Product Name: Industio CI‑132I
Model: CI‑132I
Series: Industio CI‑132 Series (includes CI‑132, CI‑132I, CI‑132IS)
Article Number: CI‑132I
Manufacturer: Moxa Technologies Co., Ltd.
Part Number (P/N): 18020013211

The Moxa Industio CI‑132I is a 2‑port RS‑422/RS‑485 industrial serial communication board designed for ISA/EISA bus systems. It provides optically isolated serial interfaces for connecting industrial devices such as sensors, controllers, data acquisition systems, and automation equipment to PCs. The CI‑132I is part of Moxa’s Industio family of multiport asynchronous communication solutions, engineered for high reliability, electrical isolation, and robust performance in harsh industrial environments.

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### 2. Key Features

- Dual RS‑422/RS‑485 Ports: Two independent serial ports supporting either RS‑422 full‑duplex or RS‑485 half‑duplex communication.
- Optical Isolation: 2 kV isolation between the serial ports and the host system to protect against ground loops and voltage surges.
- High‑Speed Data Transmission: Supports baud rates from 50 bps up to 921.6 Kbps, with both normal and high‑speed operation modes.
- Automatic Data Direction Switching (ADDS): Hardware‑based automatic data direction control for RS‑485 communication eliminates the need for software‑controlled RTS toggling.
- Advanced UART Controller: Equipped with TI 550C UARTs featuring 16‑byte transmit/receive FIFOs and on‑chip hardware flow control to ensure error‑free high‑speed data transfer.
- Software‑Configurable Parameters: I/O address, IRQ, and interrupt vector are configured via software utility (IO‑IRQ.EXE) and stored in onboard EEPROM—no DIP switches or jumpers required.
- Termination Resistors Onboard: Built‑in 120 Ω termination resistors selectable via jumpers for impedance matching in RS‑422/485 networks.
- Compact Half‑Size ISA Card: Custom ASIC design reduces component count, increases reliability, and fits in limited‑space industrial PCs.
- Wide OS Support: Native drivers for Windows 95/98, Windows NT, Windows 2000/XP/2003, DOS, and Linux; compatible with UNIX/XENIX, QNX, FreeBSD, OS/2, and others.
- Industrial‑Grade Reliability: Designed for continuous operation in factory automation, process control, and data acquisition systems.
- Comprehensive Software Tools: Bundled with Moxa’s PComm (Windows) and API‑232 (DOS) libraries for application development, diagnostics, and terminal emulation.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Bus Interface | 16‑bit ISA (EISA compatible) |
| Number of Ports | 2 independent RS‑422/RS‑485 ports |
| Maximum Boards per System | 4 |
| Communication Controller | TI 550C UART |
| Baud Rate Range | 50 bps – 921.6 Kbps |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Even, Odd, Space, Mark |
| Flow Control | Hardware (RTS/CTS), Software (XON/XOFF) |
| Isolation Protection | 2 kV optical isolation (CI‑132I and CI‑132IS) |
| Surge Protection | 2 kV (CI‑132IS only) |
| Termination Resistor | 120 Ω selectable via jumper |
| Connectors | 2 × DB9 male (DTE) |
| Signal Lines (RS‑422) | TxD±, RxD±, RTS±, CTS±, GND |
| Signal Lines (RS‑485) | Data±, GND |
| I/O Address Range | 0x0000 – 0xFFFF |
| IRQ Options | 2, 3, 4, 5, 7, 10, 11, 12, 15 |
| Interrupt Vector Range | 0x0000 – 0xFFFF |
| Isolation Voltage | 2000 V DC (optical) |
| Power Requirements | +5 V DC ± 5% — 520 mA max (CI‑132I) |
| Dimensions (L × W) | 157 mm × 83 mm |
| Operating Temperature | 0 °C – 55 °C |
| Storage Temperature | ‑20 °C – 85 °C (typical) |
| Relative Humidity | 5 % – 95 % RH, non‑condensing |
| Weight | Approx. 150 g |
| Compliance | CE, FCC Class A (industrial) |

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### 4. Functionality

The CI‑132I functions as a dual‑port asynchronous serial communication interface for PCs using the ISA bus. Each port can be independently configured for RS‑422 or RS‑485 operation:

- RS‑422 Mode: Provides full‑duplex, point‑to‑point communication up to 4000 ft (1.2 km) at 10 Mbps.
- RS‑485 Mode: Supports 2‑wire half‑duplex, multidrop communication with up to 32 drivers and 32 receivers on a single bus.

Automatic Data Direction Control (ADDS):
In RS‑485 mode, the board automatically manages transmit/receive switching, eliminating timing issues common in half‑duplex systems. Alternatively, users can select “By RTS” mode for manual control via software.

Use Cases and Applications:
- Industrial and factory automation systems
- Remote serial device networking
- Data acquisition and control systems
- SCADA and process monitoring
- Barcode readers, PLCs, sensors, and instrumentation interfaces
- POS terminals, scales, and printers requiring long‑distance serial links

Compatibility:
The CI‑132I is compatible with standard COM port addressing and can coexist with other serial adapters. It supports up to four boards per system, providing a total of eight serial ports.

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### 5. Components & Accessories

Package Contents:
- 1 × CI‑132I 2‑port serial board
- Documentation and Software CD (drivers, utilities, manuals)
- Quick Installation Guide

Connectors:
- Two onboard DB9 male connectors (DTE type)
- Pin Assignments (RS‑422):
1 = TxD‑(A), 2 = TxD+(B), 3 = RxD+(B), 4 = RxD‑(A), 5 = GND, 6 = RTS‑(A), 7 = RTS+(B), 8 = CTS+(B), 9 = CTS‑(A)
- Pin Assignments (2‑wire RS‑485):
1 = Data‑(A), 2 = Data+(B), 5 = GND

Optional Accessories:
- RS‑422/485 terminal blocks and cables
- DB9‑to‑terminal adapters
- PComm Lite software package (included on CD)
- API‑232 library for DOS development

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### 6. Installation & Setup

Hardware Installation:
1. Power off the PC and insert the CI‑132I into an available 16‑bit ISA slot.
2. Secure the board with the retaining screw.
3. Configure interface mode and termination using onboard switches:
- SW2: RS‑422 (OFF) / RS‑485 (ON)
- SW1: Automatic Data Direction (ON) / By RTS (OFF)
- JP3/JP4: Termination resistor enable (short = enabled)
4. For quick installation, short jumper JP1 to force CAP address 0xA700.
5. Power on the PC and run the configuration utility.

Software Configuration:
- DOS Utility (IO‑IRQ.EXE): Used to set I/O address, IRQ, interrupt vector, and speed spectrum (normal 50–115.2 Kbps / high 50–921.6 Kbps).
- Windows Drivers:
- *Windows 95/98:* Run Setup95.exe → configure ports via Moxa Configuration Panel.
- *Windows NT:* Add adapter via Control Panel → Network → Adapters → Have Disk → select CI‑132 driver.
- *Windows 2000/XP/2003:* Use Add/Remove Hardware wizard → Have Disk → select CI‑132 driver.
- Linux: Mount CD, extract mxser.tgz, compile and install module using make install and modprobe mxser ioaddr=0x180.

Configuration Parameters:
- I/O Address: 0x180 (default)
- IRQ: 10 (default)
- INT Vector: 0x1C0 (default)
- CAP Address: same as first port’s I/O address or 0xA700 if JP1 shorted

Quick Installation Mode:
When only one board is used under Windows 95/98 or NT, short JP1 and perform software installation directly—hardware settings are automatically updated.

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### 7. Performance & Capabilities

- Transmission Speed: Up to 921.6 Kbps (High Speed Spectrum)
- FIFO Buffers: 16‑byte Tx/Rx FIFO per port (TI 550C UART)
- Throughput: Optimized for high‑speed, low‑latency data transfer with minimal CPU overhead.
- Distance: Up to 4000 ft (1.2 km) for RS‑422 at 10 Mbps; RS‑485 supports multidrop networks over similar distances.
- Isolation: 2 kV optical barrier protects host system from field voltage spikes.
- Reliability: ASIC‑based design minimizes component count and failure rate.
- Limitations: ISA bus only; requires available IRQ and I/O resources; maximum four boards per system.

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### 8. Standards & Compliance

- Electrical Standards:
- RS‑422 (EIA RS‑422‑A)
- RS‑485 (EIA RS‑485)
- Isolation & Surge Protection:
- Optical Isolation 2 kV (CI‑132I and CI‑132IS)
- Surge Protection 2 kV (CI‑132IS)
- Regulatory Compliance:
- CE EMC Directive (Industrial Environment)
- FCC Part 15 Class A
- Operating System Support:
- Windows NT 3.x/4.0, Windows 95/98, Windows 2000/XP/2003
- DOS (API‑232)
- Linux (kernel module mxser)
- SCO UNIX/XENIX, QNX, FreeBSD, OS/2 (compatible drivers)
- Industry Standards:
- COM Port Compatibility (COM1–COM256 under Windows NT, COM1–COM128 under Windows 95/98)
- Win32 COMM API compliance

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### 9. Additional Information

Warranty & Support:
Moxa provides standard warranty coverage for manufacturing defects and offers global technical support through support@moxa.com and regional service centers.

Maintenance:
- Periodically inspect connectors and cabling for oxidation or mechanical stress.
- Ensure proper grounding and shielding in electrically noisy environments.
- Firmware and driver updates are available via Moxa FTP (ftp.moxa.com / ftp.moxa.com.tw).

Software Tools:
- PComm Lite: Windows‑based serial communication library and utilities (diagnostic, monitor, terminal emulator).
- API‑232: DOS‑based programming library supporting C, Pascal, BASIC, Assembly, and Clipper.
- Utilities: Data Scope (for line monitoring), Diagnose (for port testing), Terminal Emulator (for interactive communication).

Troubleshooting Highlights:
- *Board not detected:* Verify CAP address and IRQ conflicts; use JP1 to force CAP = 0xA700.
- *No data transfer:* Check cable wiring and flow control settings.
- *IRQ conflict:* Adjust IRQ via IO‑IRQ.EXE or BIOS.
- *Driver issues:* Reinstall using “Have Disk” method and restart system.

Return & RMA Procedure:
Customers must provide proof of purchase, complete the Problem Report Form, and obtain an RMA number before returning products for service.

Manufacturer Contact:
Moxa Technologies Co., Ltd.
Tel: +886‑2‑8919‑1230 Fax: +886‑2‑8919‑1231
Web: [www.moxa.com](https://www.moxa.com)
Email: [support@moxa.com.tw](mailto:support@moxa.com.tw)

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### Summary

The Moxa Industio CI‑132I is a robust, high‑performance dual‑port RS‑422/RS‑485 ISA serial board engineered for industrial automation and data communication applications. Its 2 kV isolation, 921.6 Kbps speed capability, and automatic data direction control make it ideal for reliable long‑distance serial networking. With comprehensive driver support across multiple operating systems, software‑based configuration, and integrated termination resistors, the CI‑132I delivers a flexible, maintenance‑free solution for connecting industrial serial devices to PC‑based control systems.