Comprehensive Product Summary – Moxa CP‑132UL / CP‑132UL‑I Universal PCI Serial Boards

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### 1. Product Overview

Product Name: CP‑132UL / CP‑132UL‑I
Series: CP‑132U Series (Universal PCI Multiport Serial Boards)
Article Number: CP‑132UL
Manufacturer: Moxa Inc.
Product Type: 2‑Port RS‑422/485 Universal PCI Serial Board (Low Profile)
Category: Multiport Serial Communication Boards for Industrial Automation

The Moxa CP‑132UL and CP‑132UL‑I are compact, high‑performance 2‑port Universal PCI serial interface boards designed for industrial and embedded PC applications requiring reliable, long‑distance, and high‑speed serial communication. The boards support RS‑422 and RS‑485 standards, feature Moxa’s proprietary Turbo Serial Engine™ for enhanced throughput, and are available in both standard and isolated models. The CP‑132UL‑I variant includes 2 kV electrical isolation for environments with higher electrical noise or potential ground loops.

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### 2. Key Features

- Dual RS‑422/485 Ports: Two independent serial ports supporting both RS‑422 and RS‑485 communication standards.
- Universal PCI Compatibility: Fully compliant with 32‑bit Universal PCI (3.3 V and 5 V) and PCI‑X slots, ensuring compatibility with modern and legacy systems.
- High Data Throughput: Supports data rates up to 921.6 kbps, enabling fast and stable data transmission for industrial devices.
- Long‑Distance Communication: Capable of transmitting data up to 1.2 km over RS‑422/485 lines, suitable for distributed control and data acquisition systems.
- Automatic Data Direction Control (ADDC®): On‑chip automatic control of RS‑485 data direction eliminates the need for manual RTS signal handling, simplifying software development.
- Turbo Serial Engine™: Proprietary Moxa chip providing 128‑byte FIFO, on‑chip software flow control, and burst data mode for optimized performance.
- Electrical Isolation (CP‑132UL‑I): 2 kV isolation between the board and connected devices to protect against voltage surges and ground potential differences.
- Embedded Surge Protection: 16 kV ESD protection ensures robust operation in electrically noisy industrial environments.
- Low Profile Form Factor: MD1 low‑profile design (64.4 × 120 mm) fits compact and small‑form‑factor PCs.
- Wide Temperature Range: Available in standard (0 – 55 °C) and wide‑temperature (‑40 – 85 °C) models for harsh environments.
- Comprehensive OS Support: Drivers available for Windows, Linux, and Unix‑like systems, including embedded and real‑time variants.
- High Reliability: MTBF of over 1.6 million hours (Telcordia standard), ensuring long‑term operational stability.

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### 3. Technical Specifications

Hardware
- Communication Controller: MU860 (16C550C compatible)
- Bus Interface: 32‑bit Universal PCI, compatible with 3.3 V/5 V PCI and PCI‑X
- Connector Type: DB‑25 female on board (via included cable to dual DB‑9 male)
- Number of Ports: 2 independent serial ports
- Maximum Boards per PC: 8

Serial Interface
- Standards Supported: RS‑422 and RS‑485 (2‑wire and 4‑wire modes)
- Baud Rate: 50 bps – 921.6 kbps (supports non‑standard baud rates)
- Data Bits: 5, 6, 7, 8
- Stop Bits: 1, 1.5, 2
- Parity: None, Even, Odd, Space, Mark
- Flow Control: XON/XOFF, RTS Toggle (RS‑232 only, for compatibility)
- FIFO: 128‑byte transmit/receive buffer per port

Signal Pinouts
- RS‑422: TxD+(B), TxD‑(A), RxD+(B), RxD‑(A), RTS+(B), RTS‑(A), CTS+(B), CTS‑(A), GND
- RS‑485‑4W: TxD+(B), TxD‑(A), RxD+(B), RxD‑(A), GND
- RS‑485‑2W: Data+(B), Data‑(A), GND

Electrical Protection
- Isolation: 2 kV (CP‑132UL‑I only)
- ESD Protection: 16 kV (embedded surge protection)

Physical Characteristics
- Dimensions: 64.4 × 120 mm (2.53 × 4.72 in)
- Form Factor: MD1 low profile
- Weight: Approx. 100 g (board only)

Power Requirements
- CP‑132UL: 120 mA @ 5 VDC
- CP‑132UL‑I: 490 mA @ 5 VDC

Environmental Limits
- Operating Temperature:
- Standard Models: 0 – 55 °C (32 – 131 °F)
- Wide Temperature Models: ‑40 – 85 °C (‑40 – 185 °F)
- Storage Temperature: ‑40 – 85 °C (‑40 – 185 °F)
- Humidity: 5 – 95 % RH (non‑condensing)

Reliability
- MTBF: 1,647,832 hours (Telcordia/Bellcore TR/SR standard)

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### 4. Functionality

The CP‑132UL series provides two independent serial communication channels that can be configured for RS‑422 or RS‑485 operation. Each port supports full‑duplex (4‑wire) or half‑duplex (2‑wire) modes, enabling flexible integration with a wide range of industrial devices such as PLCs, sensors, controllers, and data acquisition modules.

Operation Principle:
The board’s Turbo Serial Engine™ manages data buffering and flow control, ensuring efficient communication even under high‑load conditions. The ADDC® (Automatic Data Direction Control) feature automatically toggles the RS‑485 transceiver between transmit and receive modes, eliminating timing issues common in half‑duplex communication.

Use Cases and Applications:
- Industrial automation and process control
- Building management systems (BMS)
- SCADA and telemetry networks
- Data acquisition and monitoring systems
- Embedded PC communication interfaces
- Long‑distance serial device networking (up to 1.2 km)

Compatibility:
The CP‑132UL series is compatible with standard PCI and PCI‑X slots in both desktop and industrial PCs. It supports up to eight boards per system, allowing expansion to 16 serial ports.

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### 5. Components & Accessories

Package Contents:
- 1 × CP‑132UL or CP‑132UL‑I board
- 1 × Low‑profile bracket
- 1 × Connection cable (optional or included depending on model)
- 1 × Documentation and software CD
- 1 × Quick installation guide (printed)
- 1 × Warranty card

Included Cable:
- Model: CBL‑M25M9x2‑50
- Type: DB‑25 male to dual DB‑9 male
- Length: 50 cm
- Purpose: Converts the board’s DB‑25 connector into two DB‑9 male connectors for device connection.

Optional Accessories:
- Low Profile Bracket (3095010000007): Replacement or alternate mounting bracket for DB‑44 connector configurations.
- Additional Cables: CBL‑M25M9x2‑50 (available separately for spares or extended setups).

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### 6. Installation & Setup

System Requirements:
- Available PCI or PCI‑X slot (3.3 V or 5 V)
- Supported operating system (Windows, Linux, or Unix variant)
- Administrative privileges for driver installation

Installation Steps:
1. Power off the host PC and remove the cover.
2. Insert the CP‑132UL or CP‑132UL‑I board into an available PCI slot.
3. Secure the board using the provided low‑profile bracket.
4. Connect the DB‑25 cable to the board and attach the DB‑9 connectors to serial devices.
5. Power on the system and install the appropriate Moxa driver from the included CD or Moxa’s website.
6. Configure port parameters (baud rate, parity, stop bits, etc.) via the operating system’s device manager or Moxa configuration utility.

Mounting Options:
- Standard PCI bracket (121 mm)
- Low‑profile bracket (80 mm) for compact chassis

Configuration:
- Software‑selectable RS‑422/485 mode
- ADDC® automatically manages RS‑485 data direction
- BIOS automatically assigns I/O address and IRQ

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### 7. Performance & Capabilities

Data Throughput:
- Up to 921.6 kbps per port, supporting high‑speed industrial communication.
- Optimized for low latency and minimal CPU overhead through the Turbo Serial Engine™.

Transmission Distance:
- Up to 1.2 km (4000 ft) over twisted‑pair cabling in RS‑422/485 mode.
- Supports up to 31 RS‑485 devices in a multidrop configuration.

Efficiency Features:
- 128‑byte FIFO buffers reduce interrupt load and improve throughput.
- On‑chip software flow control ensures stable communication under heavy data loads.
- ADDC® eliminates manual RTS control, simplifying half‑duplex operation.

Limitations:
- RS‑232 not supported (RS‑422/485 only).
- Isolation available only on CP‑132UL‑I models.
- Requires proper termination and biasing for long‑distance RS‑485 networks.

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### 8. Standards & Compliance

Electromagnetic Compatibility (EMC):
- EMC Standards: EN 55032/24
- EMI Compliance: CISPR 32, FCC Part 15B Class B
- EMS Immunity:
- IEC 61000‑4‑2 (ESD): Contact 4 kV, Air 8 kV
- IEC 61000‑4‑3 (RS): 80 MHz – 1 GHz, 3 V/m

Environmental & Safety:
- Designed for industrial environments with wide temperature and humidity tolerance.
- Electrical isolation (2 kV) on CP‑132UL‑I meets industrial safety requirements.

Reliability Standard:
- MTBF tested per Telcordia (Bellcore) TR/SR methodology.

Regulatory Approvals:
- CE and FCC certified for electromagnetic safety and emissions.

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### 9. Additional Information

Warranty:
- Duration: 5 years standard warranty
- Coverage: Manufacturing defects and hardware failures under normal use
- Details: Refer to [www.moxa.com/warranty](https://www.moxa.com/warranty) for terms and conditions

Technical Support:
- Comprehensive online resources including driver downloads, manuals, and FAQs
- Global technical support network via Moxa regional offices and distributors

Maintenance:
- No periodic maintenance required; ensure proper grounding and cable shielding in industrial environments.
- Firmware and driver updates available from Moxa’s official website to maintain compatibility with new operating systems.

Product Variants and Ordering Information:
| Model | Description | Operating Temp. | Isolation | Included Cable |
|--------|--------------|-----------------|------------|----------------|
| CP‑132UL‑DB9M | 2‑port RS‑422/485 low‑profile Universal PCI serial board | 0 – 55 °C | No | CBL‑M25M9x2‑50 |
| CP‑132UL‑I‑DB9M | 2‑port RS‑422/485 low‑profile Universal PCI serial board with isolation | 0 – 55 °C | 2 kV | CBL‑M25M9x2‑50 |
| CP‑132UL‑T | Wide‑temperature version | ‑40 – 85 °C | No | CBL‑M25M9x2‑50 |
| CP‑132UL‑I‑T | Wide‑temperature, isolated version | ‑40 – 85 °C | 2 kV | CBL‑M25M9x2‑50 |

Cabling and Connector Details:
- DB‑25 to Dual DB‑9 Cable (CBL‑M25M9x2‑50):
- DB‑25 male to two DB‑9 male connectors
- Length: 50 cm
- Pin assignments support RS‑422, RS‑485‑4W, and RS‑485‑2W configurations

Pin Assignments (DB‑9 Male):
| Pin | RS‑422 | RS‑485‑4W | RS‑485‑2W |
|------|---------|------------|------------|
| 1 | TxD‑(A) | TxD‑(A) | – |
| 2 | TxD+(B) | TxD+(B) | – |
| 3 | RxD+(B) | RxD+(B) | Data+(B) |
| 4 | RxD‑(A) | RxD‑(A) | Data‑(A) |
| 5 | GND | GND | GND |
| 6 | RTS‑(A) | – | – |
| 7 | RTS+(B) | – | – |
| 8 | CTS+(B) | – | – |
| 9 | CTS‑(A) | – | – |

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### Summary

The Moxa CP‑132UL and CP‑132UL‑I Universal PCI serial boards deliver industrial‑grade reliability, high‑speed performance, and flexible connectivity for RS‑422/485 communication. Their compact low‑profile design, wide environmental tolerance, and advanced features such as ADDC® and Turbo Serial Engine™ make them ideal for embedded and automation systems requiring robust serial communication over long distances.

With comprehensive driver support across major operating systems, 16 kV ESD protection, and optional 2 kV isolation, the CP‑132UL series ensures dependable operation in demanding industrial environments. The combination of high throughput, long‑distance capability, and ease of integration positions the CP‑132UL/UL‑I as a leading solution for PC‑based serial communication in automation, control, and data acquisition applications.