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- Dual Independent Serial Ports: Two fully independent RS‑422/RS‑485 ports for simultaneous multi‑device communication.
- High‑Speed Data Transfer: Supports baud rates from 50 bps to 921.6 kbps per port.
- Optical Isolation: 2 kV DC isolation on all signal lines (specific to CP‑132I and CP‑132IS models) to protect against ground loops and voltage surges.
- Automatic Data Direction Control (ADDC): Built‑in hardware intelligence for RS‑485 half‑duplex communication eliminates the need for software‑based RTS control.
- Flexible Interface Selection: Hardware switches allow per‑port configuration between RS‑422 and RS‑485 modes.
- Termination Resistors: On‑board 120 Ω termination resistors with jumper selection for impedance matching.
- Compact Half‑Size PCI Board: 120 mm × 80 mm form factor suitable for industrial PCs and embedded systems.
- Plug‑and‑Play PCI Configuration: Fully compliant with PCI Specification 2.1; IRQ and I/O addresses automatically assigned by the PCI BIOS.
- Multi‑Board Support: Up to four CP‑132 Series boards can be installed in a single system.
- Robust Communication Controller: Each port uses a 16C550C UART with 32‑byte FIFO and hardware flow control to prevent data loss at high speeds.
- Comprehensive Driver Support: Native drivers for Windows NT, Windows 95/98, and DOS; compatible with Moxa’s PComm and API‑232 programming libraries.
- Industrial Reliability: Designed for factory automation, data acquisition, and remote device control applications.
- High‑Speed Data Transfer: Supports baud rates from 50 bps to 921.6 kbps per port.
- Optical Isolation: 2 kV DC isolation on all signal lines (specific to CP‑132I and CP‑132IS models) to protect against ground loops and voltage surges.
- Automatic Data Direction Control (ADDC): Built‑in hardware intelligence for RS‑485 half‑duplex communication eliminates the need for software‑based RTS control.
- Flexible Interface Selection: Hardware switches allow per‑port configuration between RS‑422 and RS‑485 modes.
- Termination Resistors: On‑board 120 Ω termination resistors with jumper selection for impedance matching.
- Compact Half‑Size PCI Board: 120 mm × 80 mm form factor suitable for industrial PCs and embedded systems.
- Plug‑and‑Play PCI Configuration: Fully compliant with PCI Specification 2.1; IRQ and I/O addresses automatically assigned by the PCI BIOS.
- Multi‑Board Support: Up to four CP‑132 Series boards can be installed in a single system.
- Robust Communication Controller: Each port uses a 16C550C UART with 32‑byte FIFO and hardware flow control to prevent data loss at high speeds.
- Comprehensive Driver Support: Native drivers for Windows NT, Windows 95/98, and DOS; compatible with Moxa’s PComm and API‑232 programming libraries.
- Industrial Reliability: Designed for factory automation, data acquisition, and remote device control applications.
Comprehensive Product Summary – Moxa Industio CP‑132I
### 1. Product Overview
Product Name: Industio CP‑132I
Model: CP‑132I
Series: Industio CP‑132 Series
Article Number: CP‑132I
Manufacturer: Moxa Technologies Co., Ltd.
Manufacturer Contact:
- Tel: +886‑2‑8665‑6373
- Fax: +886‑2‑8665‑6372
- Website: [www.moxa.com](https://www.moxa.com)
- Support: support@moxa.com.tw
Product Type: Industrial 2‑Port RS‑422/RS‑485 Serial Communication Board for PCI Bus
General Description:
The Moxa Industio CP‑132I is a high‑performance, industrial‑grade, two‑port asynchronous serial communication board designed for PCI bus systems. It provides two independent RS‑422/RS‑485 ports with optical isolation up to 2 kV, ensuring reliable and noise‑immune data transmission in harsh industrial environments. Each port is equipped with a 16C550C UART featuring 32‑byte transmit/receive FIFO buffers, supporting data rates up to 921.6 kbps. The CP‑132I is part of Moxa’s Industio CP‑132 Series, which includes variants with surge protection (CP‑132S) and combined surge/isolation protection (CP‑132IS).
### 2. Key Features
- Dual Independent Serial Ports: Two fully independent RS‑422/RS‑485 ports for simultaneous multi‑device communication.
- High‑Speed Data Transfer: Supports baud rates from 50 bps to 921.6 kbps per port.
- Optical Isolation: 2 kV DC isolation on all signal lines (specific to CP‑132I and CP‑132IS models) to protect against ground loops and voltage surges.
- Automatic Data Direction Control (ADDC): Built‑in hardware intelligence for RS‑485 half‑duplex communication eliminates the need for software‑based RTS control.
- Flexible Interface Selection: Hardware switches allow per‑port configuration between RS‑422 and RS‑485 modes.
- Termination Resistors: On‑board 120 Ω termination resistors with jumper selection for impedance matching.
- Compact Half‑Size PCI Board: 120 mm × 80 mm form factor suitable for industrial PCs and embedded systems.
- Plug‑and‑Play PCI Configuration: Fully compliant with PCI Specification 2.1; IRQ and I/O addresses automatically assigned by the PCI BIOS.
- Multi‑Board Support: Up to four CP‑132 Series boards can be installed in a single system.
- Robust Communication Controller: Each port uses a 16C550C UART with 32‑byte FIFO and hardware flow control to prevent data loss at high speeds.
- Comprehensive Driver Support: Native drivers for Windows NT, Windows 95/98, and DOS; compatible with Moxa’s PComm and API‑232 programming libraries.
- Industrial Reliability: Designed for factory automation, data acquisition, and remote device control applications.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Bus Interface | 32‑bit PCI, compliant with PCI Spec. 2.1 |
| Number of Ports | 2 independent RS‑422/RS‑485 ports |
| Maximum Boards per System | 4 |
| Communication Controller | 16C550C UART or compatible |
| Baud Rate Range | 50 bps – 921.6 kbps |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity Options | None, Even, Odd, Space, Mark |
| Signal Lines (RS‑422) | TxD±, RxD±, RTS±, CTS±, GND |
| Signal Lines (RS‑485) | Data±, GND |
| Connectors | 2 × DB9 male (D‑type) |
| Optical Isolation | 2 kV DC (CP‑132I, CP‑132IS) |
| Surge Protection | ESD 25 kV, EFT 2 kV (CP‑132S, CP‑132IS) |
| Termination Resistor | 120 Ω jumper‑selectable |
| Power Requirements | +5 V DC, 700 mA max (CP‑132I) |
| Operating Temperature | 0 °C – 55 °C |
| Dimensions | 120 mm × 80 mm |
| Weight | Approx. 100 g (board only) |
| Operating Systems Supported | Windows NT, Windows 95/98, DOS |
| Isolation Type | Optical, 2 kV DC |
| Form Factor | Half‑size PCI card |
### 4. Functionality
Operating Principle:
The CP‑132I functions as a PCI‑based asynchronous serial communication interface, enabling PCs to connect to RS‑422 or RS‑485 devices such as sensors, controllers, and data acquisition modules. Each port can operate independently in either RS‑422 full‑duplex or RS‑485 half‑duplex mode.
RS‑422 Mode:
Provides point‑to‑point or multi‑drop full‑duplex communication using differential signaling for noise immunity and long‑distance transmission (up to 4000 ft).
RS‑485 Mode:
Supports 2‑wire half‑duplex communication for multi‑drop networks with up to 32 devices per port. The Automatic Data Direction Control (ADDC) hardware automatically manages transmit/receive switching, simplifying software development.
Use Cases and Applications:
- Industrial automation and process control
- Factory monitoring and SCADA systems
- Remote serial device management
- Data acquisition and instrumentation
- Building automation and environmental monitoring
- Communication with PLCs, sensors, and motor controllers
Compatibility:
Fully compatible with standard PCI bus systems and supports major operating systems. Moxa’s PComm (Windows) and API‑232 (DOS) libraries provide APIs for C, C++, Visual Basic, Delphi, and other languages.
### 5. Components & Accessories
Package Contents:
- 1 × Industio CP‑132I 2‑Port PCI Serial Board
- 1 × Moxa Software CD‑ROM containing:
- Windows NT/95/98 and DOS drivers
- PComm Lite programming library and utilities
- API‑232 programming library and utilities
- User’s manuals (PDF format)
- Printed Industio CP‑132 Series User’s Manual
Optional Accessories:
- RS‑422/RS‑485 connection cables (DB9 male to terminal block or custom wiring)
- External termination resistor networks (if additional impedance matching required)
- PCI slot mounting screws and brackets
Connectors:
Each port uses a DB9 male connector with pin assignments depending on RS‑422 or RS‑485 configuration.
### 6. Installation & Setup
Hardware Installation Steps:
1. Power off the PC and remove the cover.
2. Insert the CP‑132I board into an available 32‑bit PCI slot.
3. Secure the board with the mounting screw.
4. Replace the system cover and power on the PC.
5. The PCI BIOS automatically assigns IRQ and I/O addresses.
Configuration Switches and Jumpers:
- SW2 (Interface Switch):
- ON = RS‑485 mode
- OFF = RS‑422 mode
- SW1 (Data Mode Switch):
- ON = Automatic Data Direction Control (ADDC)
- OFF = By RTS mode
- JP1/JP2 (Termination Resistor Jumpers):
- Open = No termination
- Short = 120 Ω termination enabled
Software Installation:
- Windows NT: Install via Control Panel → Network → Adapters → Add → Have Disk. Configure COM port numbers, FIFO settings, and restart the system.
- Windows 95/98: Plug‑and‑Play detection automatically installs the driver. Configure ports via Device Manager.
- DOS: Run `DOSINST.EXE` to install API‑232 drivers, then configure ports using `SETUP.EXE`.
Driver Configuration:
- COM port mapping configurable (COM1–COM256 for NT, COM1–COM128 for 95/98).
- FIFO trigger levels selectable (Rx = 1, 4, 8, 14 bytes; Tx = 1–16 bytes).
- Supports up to four boards per system.
### 7. Performance & Capabilities
- Maximum Data Rate: 921.6 kbps per port.
- Transmission Distance: Up to 4000 ft (RS‑422).
- Multi‑Drop Capacity: Up to 32 devices per RS‑485 port.
- FIFO Buffers: 32‑byte transmit and receive buffers per UART.
- Flow Control: Hardware (RTS/CTS) and software (XON/XOFF) supported.
- Data Integrity: Optical isolation prevents ground loops; termination resistors minimize signal reflections.
- Power Consumption: 700 mA @ +5 V DC (CP‑132I).
- Reliability: Designed for continuous operation in industrial environments; ESD and EFT protection available in related models.
Limitations:
- RS‑485 operation limited to 2‑wire half‑duplex.
- Optical isolation not present on non‑“I” models.
- Requires PCI slot; not compatible with ISA/EISA systems.
### 8. Standards & Compliance
- PCI Compliance: PCI Specification 2.1
- Electrical Isolation: 2 kV DC optical isolation (CP‑132I/IS)
- Surge Protection: ESD 25 kV, EFT 2 kV (CP‑132S/IS)
- Termination Resistance: 120 Ω ± 5 %
- Operating Temperature Range: 0 °C – 55 °C
- Regulatory Compliance: Designed for industrial EMC environments; conforms to standard RS‑422/RS‑485 electrical specifications.
- UART Standard: 16C550C compatible with 32‑byte FIFO and hardware flow control.
- Software Standards: Conforms to Microsoft Win32 COMM API for Windows NT/95/98.
### 9. Additional Information
Warranty & Support:
Moxa provides standard warranty coverage for manufacturing defects. Technical support is available via email (support@moxa.com.tw), FTP (ftp.moxa.com), and the official website for driver and manual updates.
Maintenance:
- Periodically inspect connectors and cabling for wear or oxidation.
- Ensure proper grounding and shielding in high‑noise environments.
- Use Moxa diagnostic utilities (`PComm` Diagnostic, `BIN\DIAGNOSE.EXE`) for port verification.
Software Tools:
- PComm (Windows NT/95/98): Serial communication library and utilities including terminal emulator, diagnostics, and monitor tools.
- API‑232 (DOS): Serial programming library supporting C, Pascal, BASIC, and Assembly. Includes Data Scope and Diagnose utilities for debugging.
Programming Support:
- Functions for port initialization, data transmission, and RS‑485 control.
- Example code provided for Visual C++, Visual Basic, Delphi, Turbo C, and others.
- Supports automatic and RTS‑controlled RS‑485 modes.
Troubleshooting Highlights:
- Verify PCI slot integrity and available IRQs if board not detected.
- Check cable wiring and termination for communication errors.
- Use diagnostic utilities to test UART, TxD/RxD, and control signals.
- Reconfigure COM port mappings if conflicts occur.
Return & RMA Procedure:
For repair or replacement, users must provide proof of purchase, complete the Problem Report Form, obtain an RMA number, and return the product in anti‑static packaging with a detailed fault description.
### Summary
The Moxa Industio CP‑132I is a robust, optically isolated, dual‑port RS‑422/RS‑485 PCI communication board engineered for industrial automation and data acquisition systems. Its combination of high‑speed performance (up to 921.6 kbps), 2 kV isolation, and intelligent RS‑485 control ensures reliable operation in electrically noisy environments. With comprehensive driver support, flexible configuration, and Moxa’s proven industrial design, the CP‑132I provides a dependable interface solution for connecting PCs to serial field devices across a wide range of industrial and embedded applications.
### 1. Product Overview
Product Name: Industio CP‑132I
Model: CP‑132I
Series: Industio CP‑132 Series
Article Number: CP‑132I
Manufacturer: Moxa Technologies Co., Ltd.
Manufacturer Contact:
- Tel: +886‑2‑8665‑6373
- Fax: +886‑2‑8665‑6372
- Website: [www.moxa.com](https://www.moxa.com)
- Support: support@moxa.com.tw
Product Type: Industrial 2‑Port RS‑422/RS‑485 Serial Communication Board for PCI Bus
General Description:
The Moxa Industio CP‑132I is a high‑performance, industrial‑grade, two‑port asynchronous serial communication board designed for PCI bus systems. It provides two independent RS‑422/RS‑485 ports with optical isolation up to 2 kV, ensuring reliable and noise‑immune data transmission in harsh industrial environments. Each port is equipped with a 16C550C UART featuring 32‑byte transmit/receive FIFO buffers, supporting data rates up to 921.6 kbps. The CP‑132I is part of Moxa’s Industio CP‑132 Series, which includes variants with surge protection (CP‑132S) and combined surge/isolation protection (CP‑132IS).
### 2. Key Features
- Dual Independent Serial Ports: Two fully independent RS‑422/RS‑485 ports for simultaneous multi‑device communication.
- High‑Speed Data Transfer: Supports baud rates from 50 bps to 921.6 kbps per port.
- Optical Isolation: 2 kV DC isolation on all signal lines (specific to CP‑132I and CP‑132IS models) to protect against ground loops and voltage surges.
- Automatic Data Direction Control (ADDC): Built‑in hardware intelligence for RS‑485 half‑duplex communication eliminates the need for software‑based RTS control.
- Flexible Interface Selection: Hardware switches allow per‑port configuration between RS‑422 and RS‑485 modes.
- Termination Resistors: On‑board 120 Ω termination resistors with jumper selection for impedance matching.
- Compact Half‑Size PCI Board: 120 mm × 80 mm form factor suitable for industrial PCs and embedded systems.
- Plug‑and‑Play PCI Configuration: Fully compliant with PCI Specification 2.1; IRQ and I/O addresses automatically assigned by the PCI BIOS.
- Multi‑Board Support: Up to four CP‑132 Series boards can be installed in a single system.
- Robust Communication Controller: Each port uses a 16C550C UART with 32‑byte FIFO and hardware flow control to prevent data loss at high speeds.
- Comprehensive Driver Support: Native drivers for Windows NT, Windows 95/98, and DOS; compatible with Moxa’s PComm and API‑232 programming libraries.
- Industrial Reliability: Designed for factory automation, data acquisition, and remote device control applications.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Bus Interface | 32‑bit PCI, compliant with PCI Spec. 2.1 |
| Number of Ports | 2 independent RS‑422/RS‑485 ports |
| Maximum Boards per System | 4 |
| Communication Controller | 16C550C UART or compatible |
| Baud Rate Range | 50 bps – 921.6 kbps |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity Options | None, Even, Odd, Space, Mark |
| Signal Lines (RS‑422) | TxD±, RxD±, RTS±, CTS±, GND |
| Signal Lines (RS‑485) | Data±, GND |
| Connectors | 2 × DB9 male (D‑type) |
| Optical Isolation | 2 kV DC (CP‑132I, CP‑132IS) |
| Surge Protection | ESD 25 kV, EFT 2 kV (CP‑132S, CP‑132IS) |
| Termination Resistor | 120 Ω jumper‑selectable |
| Power Requirements | +5 V DC, 700 mA max (CP‑132I) |
| Operating Temperature | 0 °C – 55 °C |
| Dimensions | 120 mm × 80 mm |
| Weight | Approx. 100 g (board only) |
| Operating Systems Supported | Windows NT, Windows 95/98, DOS |
| Isolation Type | Optical, 2 kV DC |
| Form Factor | Half‑size PCI card |
### 4. Functionality
Operating Principle:
The CP‑132I functions as a PCI‑based asynchronous serial communication interface, enabling PCs to connect to RS‑422 or RS‑485 devices such as sensors, controllers, and data acquisition modules. Each port can operate independently in either RS‑422 full‑duplex or RS‑485 half‑duplex mode.
RS‑422 Mode:
Provides point‑to‑point or multi‑drop full‑duplex communication using differential signaling for noise immunity and long‑distance transmission (up to 4000 ft).
RS‑485 Mode:
Supports 2‑wire half‑duplex communication for multi‑drop networks with up to 32 devices per port. The Automatic Data Direction Control (ADDC) hardware automatically manages transmit/receive switching, simplifying software development.
Use Cases and Applications:
- Industrial automation and process control
- Factory monitoring and SCADA systems
- Remote serial device management
- Data acquisition and instrumentation
- Building automation and environmental monitoring
- Communication with PLCs, sensors, and motor controllers
Compatibility:
Fully compatible with standard PCI bus systems and supports major operating systems. Moxa’s PComm (Windows) and API‑232 (DOS) libraries provide APIs for C, C++, Visual Basic, Delphi, and other languages.
### 5. Components & Accessories
Package Contents:
- 1 × Industio CP‑132I 2‑Port PCI Serial Board
- 1 × Moxa Software CD‑ROM containing:
- Windows NT/95/98 and DOS drivers
- PComm Lite programming library and utilities
- API‑232 programming library and utilities
- User’s manuals (PDF format)
- Printed Industio CP‑132 Series User’s Manual
Optional Accessories:
- RS‑422/RS‑485 connection cables (DB9 male to terminal block or custom wiring)
- External termination resistor networks (if additional impedance matching required)
- PCI slot mounting screws and brackets
Connectors:
Each port uses a DB9 male connector with pin assignments depending on RS‑422 or RS‑485 configuration.
### 6. Installation & Setup
Hardware Installation Steps:
1. Power off the PC and remove the cover.
2. Insert the CP‑132I board into an available 32‑bit PCI slot.
3. Secure the board with the mounting screw.
4. Replace the system cover and power on the PC.
5. The PCI BIOS automatically assigns IRQ and I/O addresses.
Configuration Switches and Jumpers:
- SW2 (Interface Switch):
- ON = RS‑485 mode
- OFF = RS‑422 mode
- SW1 (Data Mode Switch):
- ON = Automatic Data Direction Control (ADDC)
- OFF = By RTS mode
- JP1/JP2 (Termination Resistor Jumpers):
- Open = No termination
- Short = 120 Ω termination enabled
Software Installation:
- Windows NT: Install via Control Panel → Network → Adapters → Add → Have Disk. Configure COM port numbers, FIFO settings, and restart the system.
- Windows 95/98: Plug‑and‑Play detection automatically installs the driver. Configure ports via Device Manager.
- DOS: Run `DOSINST.EXE` to install API‑232 drivers, then configure ports using `SETUP.EXE`.
Driver Configuration:
- COM port mapping configurable (COM1–COM256 for NT, COM1–COM128 for 95/98).
- FIFO trigger levels selectable (Rx = 1, 4, 8, 14 bytes; Tx = 1–16 bytes).
- Supports up to four boards per system.
### 7. Performance & Capabilities
- Maximum Data Rate: 921.6 kbps per port.
- Transmission Distance: Up to 4000 ft (RS‑422).
- Multi‑Drop Capacity: Up to 32 devices per RS‑485 port.
- FIFO Buffers: 32‑byte transmit and receive buffers per UART.
- Flow Control: Hardware (RTS/CTS) and software (XON/XOFF) supported.
- Data Integrity: Optical isolation prevents ground loops; termination resistors minimize signal reflections.
- Power Consumption: 700 mA @ +5 V DC (CP‑132I).
- Reliability: Designed for continuous operation in industrial environments; ESD and EFT protection available in related models.
Limitations:
- RS‑485 operation limited to 2‑wire half‑duplex.
- Optical isolation not present on non‑“I” models.
- Requires PCI slot; not compatible with ISA/EISA systems.
### 8. Standards & Compliance
- PCI Compliance: PCI Specification 2.1
- Electrical Isolation: 2 kV DC optical isolation (CP‑132I/IS)
- Surge Protection: ESD 25 kV, EFT 2 kV (CP‑132S/IS)
- Termination Resistance: 120 Ω ± 5 %
- Operating Temperature Range: 0 °C – 55 °C
- Regulatory Compliance: Designed for industrial EMC environments; conforms to standard RS‑422/RS‑485 electrical specifications.
- UART Standard: 16C550C compatible with 32‑byte FIFO and hardware flow control.
- Software Standards: Conforms to Microsoft Win32 COMM API for Windows NT/95/98.
### 9. Additional Information
Warranty & Support:
Moxa provides standard warranty coverage for manufacturing defects. Technical support is available via email (support@moxa.com.tw), FTP (ftp.moxa.com), and the official website for driver and manual updates.
Maintenance:
- Periodically inspect connectors and cabling for wear or oxidation.
- Ensure proper grounding and shielding in high‑noise environments.
- Use Moxa diagnostic utilities (`PComm` Diagnostic, `BIN\DIAGNOSE.EXE`) for port verification.
Software Tools:
- PComm (Windows NT/95/98): Serial communication library and utilities including terminal emulator, diagnostics, and monitor tools.
- API‑232 (DOS): Serial programming library supporting C, Pascal, BASIC, and Assembly. Includes Data Scope and Diagnose utilities for debugging.
Programming Support:
- Functions for port initialization, data transmission, and RS‑485 control.
- Example code provided for Visual C++, Visual Basic, Delphi, Turbo C, and others.
- Supports automatic and RTS‑controlled RS‑485 modes.
Troubleshooting Highlights:
- Verify PCI slot integrity and available IRQs if board not detected.
- Check cable wiring and termination for communication errors.
- Use diagnostic utilities to test UART, TxD/RxD, and control signals.
- Reconfigure COM port mappings if conflicts occur.
Return & RMA Procedure:
For repair or replacement, users must provide proof of purchase, complete the Problem Report Form, obtain an RMA number, and return the product in anti‑static packaging with a detailed fault description.
### Summary
The Moxa Industio CP‑132I is a robust, optically isolated, dual‑port RS‑422/RS‑485 PCI communication board engineered for industrial automation and data acquisition systems. Its combination of high‑speed performance (up to 921.6 kbps), 2 kV isolation, and intelligent RS‑485 control ensures reliable operation in electrically noisy environments. With comprehensive driver support, flexible configuration, and Moxa’s proven industrial design, the CP‑132I provides a dependable interface solution for connecting PCs to serial field devices across a wide range of industrial and embedded applications.
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CP-132.pdf
Manual
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