Comprehensive Product Summary: TRP-C34H 32-bit 4-Port RS232/422/485 Device Server

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### 1. Product Overview

Product Name: TRP-C34H
Model: TRP-C34H
Series: TRP-C Series Serial Device Servers
Article Number: TRP-C34H
Manufacturer: Trycom Technology Co., Ltd.
Manufacturer Address: 1F, No. 2-11, Sihu Street, Yingge Township, Taipei, Taiwan, R.O.C.
Website: [www.trycom.com.tw](http://www.trycom.com.tw)
Telephone: +886-2-86781191
Fax: +886-2-86781172

The Trycom TRP-C34H is a 32-bit, 4-port RS232/422/485 serial-to-Ethernet device server designed to connect multiple serial devices to an Ethernet network. It provides transparent, bi-directional data transmission between serial and Ethernet interfaces, enabling remote access, monitoring, and control of serial equipment over TCP/IP networks. The device supports multiple communication modes, including Real COM, TCP Server, TCP Client, and UDP, making it suitable for industrial automation, data acquisition, and remote device management applications.

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### 2. Key Features

- Multi-Protocol Serial Connectivity: Supports RS-232, RS-422, and RS-485 interfaces across four independent ports.
- Flexible Operation Modes: Real COM Mode, TCP Server Mode, TCP Client Mode, and UDP Mode for diverse networking environments.
- High-Performance 32-bit CPU: 170 MHz processor with MMU, 32 MB SDRAM, and 8 MB Flash memory for stable and efficient operation.
- Wide Power Input Range: Accepts DC +10V to +30V, suitable for industrial power systems.
- Auto-MDIX Ethernet Port: Automatically detects and corrects crossover or straight-through cable connections.
- High Data Rate: Supports serial data rates from 75 bps up to 921.6 Kbps.
- Multi-Host Access: Each serial port supports up to four simultaneous host connections in TCP Server Mode.
- Expandable Architecture: Three external USB ports (P1, P2, P3) allow connection to Trycom expansion modules (TRP-C08S, C08U, C08H, C08X, C29U) for up to 16 serial ports or 24 digital I/O channels.
- Robust Protection: ±15 kV ESD protection on serial interfaces; surge, over-current, and over-voltage protection on RS-422/485 lines.
- Hardware RS-485 Flow Control: Automatic direction control ensures reliable half-duplex communication.
- Comprehensive Configuration Options: Supports configuration via Windows Utility, Web Console, or Telnet Console.
- Security Features: Accessible IP list for authorized host control and password protection.
- Auto IP Reporting: Periodically reports its IP address to a designated host for network management.
- LED Indicators: Power, Link, and TX/RX LEDs for each serial port provide real-time status monitoring.
- Mounting Flexibility: Supports DIN rail and panel mounting.
- Factory Restore Function: Push-button reset to restore default settings.
- Operating Temperature: 0°C to 65°C, suitable for industrial environments.
- Compact and Durable Design: Metal enclosure with dimensions of 145 × 118 × 26 mm and weight of approximately 728 g.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| CPU | 32-bit, 170 MHz with MMU |
| Memory | 32 MB SDRAM, 8 MB Flash |
| Power Input | DC +10V to +30V |
| Power Consumption | 12V / 450 mA (without external devices) |
| Ethernet Interface | 10/100 Mbps Auto-detecting, Auto-MDIX |
| Serial Ports | 4 × RS-232/422/485 (selectable per port) |
| RS-232 Signals | RI, TX, RX, RTS, CTS, DTR, DSR, DCD, GND |
| RS-422 Signals | TX+, TX−, RX+, RX− |
| RS-485 Signals | Data+, Data− |
| Data Rate | 75 bps to 921.6 Kbps |
| Data Bits | 5, 6, 7, or 8 |
| Stop Bits | 1, 1.5, or 2 |
| Parity | None, Even, Odd |
| ESD Protection | ±15 kV on serial interfaces |
| RS-422/485 Protection | Surge, over-current, over-voltage |
| External USB Ports | 3 × USB Type-A (P1, P2, P3), 5V/500 mA each |
| Configuration Interfaces | Windows Utility, Web Console, Telnet Console |
| Protocols Supported | ICMP, TCP/IP, UDP, DHCP, BootP, Telnet, DNS, SNMP, HTTP, SMTP, SNTP |
| Operating Temperature | 0°C to 65°C |
| Humidity | 0–90% RH, non-condensing |
| Dimensions | 145 mm (L) × 118 mm (W) × 26 mm (H) |
| Weight | 728 g (with packaging) |
| Mounting Options | DIN rail or panel mount |
| Enclosure Material | Metal housing |

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### 4. Functionality

The TRP-C34H acts as a serial-to-Ethernet bridge, enabling legacy serial devices to communicate over modern IP networks. It transparently transmits data between serial and Ethernet interfaces, allowing remote access as if the devices were locally connected to a PC COM port.

Operating Modes:

1. Real COM Mode:
- Maps each serial port to a virtual COM port on a Windows host using RFC 2217 protocol.
- Enables existing serial applications (e.g., HyperTerminal) to operate without modification.
- Supported OS: Windows XP, Vista, 7, 2000, 2003/2008 Server (32/64-bit).

2. TCP Server Mode:
- The TRP-C34H listens for incoming TCP connections from hosts.
- Each port can accept up to four simultaneous connections.
- Ideal for data collection from multiple hosts.

3. TCP Client Mode:
- The device initiates a TCP connection to predefined hosts when serial data is received.
- Supports up to four destination hosts.
- Automatically disconnects after inactivity or timeout.

4. UDP Mode:
- Enables multicast or broadcast communication for high-speed, low-latency data exchange.
- Suitable for message display or monitoring applications.

Use Cases:
- Industrial automation and control systems
- Remote data acquisition and monitoring
- POS terminals and barcode scanners
- Serial modems and sensors
- Magnetic card readers and industrial PCs
- Distributed control systems and SCADA integration

Compatibility:
Fully compatible with Ethernet and TCP/IP networks. Supports integration with Trycom expansion modules for additional serial or I/O channels.

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### 5. Components & Accessories

Included Components:
- TRP-C34H main unit
- User manual (Rev. 1.1, printed September 2013)
- Mounting hardware (DIN rail/panel)
- Power terminal block
- Software CD (includes Serial Server Admin Utility and drivers)

Optional Accessories:
- External DC power adapter (recommended 12V / 1A)
- USB expansion modules:
- TRP-C08S: USB to 1 RS232 + 1 RS422/485 isolated converter
- TRP-C08H: USB to 2 RS232 + 2 RS422/485 isolated converter
- TRP-C08U: USB to 4 RS232 isolated converter
- TRP-C08X: USB to 4 RS232/422/485 converter
- TRP-C29U: USB to 8 digital input + 8 digital output remote I/O module

Connectors:
- 4 × DB-9 male connectors for RS-232
- 4 × screw terminal blocks for RS-422/485 and power
- 1 × RJ45 Ethernet port (Auto-MDIX)
- 3 × USB Type-A ports (P1, P2, P3)
- 1 × DC power jack (5.5 × 2.1 mm)

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### 6. Installation & Setup

Requirements:
- DC power supply (10–30V, 12V/1A recommended)
- Ethernet connection (10/100 Mbps)
- Serial cables (DB-9 or terminal wiring)
- Windows PC for configuration (XP or later)

Installation Steps:
1. Interface Selection:
Open the metal enclosure and set DIP switches to select RS-232 or RS-422/485 for each port.
2. Power Connection:
Connect DC power via screw terminal or DC jack. The PWR LED blinks during boot and turns solid when ready.
3. Network Connection:
Connect Ethernet cable (straight or crossover). The LINK LED indicates active connection.
4. Serial Connection:
Connect serial devices using DB-9 or terminal wiring (RS-485 uses twisted pair).
5. Configuration:
Access via:
- Serial Server Admin Utility (Windows)
- Web Console (browser-based)
- Telnet Console (command-line)
6. Factory Reset:
Hold the reset button until the PWR LED turns off, then reboot.

Default Settings:
- IP: DHCP enabled
- Ports 1–4: 115200 bps, 8N1, RS-232
- Mode: Real COM
- Password: “trycom”

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### 7. Performance & Capabilities

- Serial Throughput: Up to 921.6 Kbps per port (typical 460 Kbps recommended)
- Network Throughput: 10/100 Mbps auto-negotiation
- Multi-Host Support: Up to 4 simultaneous TCP connections per port
- Latency: Low-latency communication suitable for real-time control
- Reliability: Hardware watchdog and power-failure detection prevent boot errors
- Scalability: Supports up to 16 serial ports via USB expansion modules
- Auto IP Reporting: Periodic IP address broadcast to host for DHCP environments
- Auto Warning System: Sends SNMP traps or email alerts for status changes
- Security: IP access control list and password protection
- Limitations:
- No built-in PoE support
- Requires external power supply
- Configuration limited to Windows-based utility or web interface

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### 8. Standards & Compliance

- Communication Protocols: ICMP, TCP/IP, UDP, DHCP, BootP, Telnet, DNS, SNMP, HTTP, SMTP, SNTP
- Real COM Protocol: RFC 2217 compliant
- Electrical Protection: ±15 kV ESD, surge, over-current, and over-voltage protection
- Environmental Compliance: RoHS-compliant components
- Network Standards: IEEE 802.3 10/100Base-T
- Safety: Industrial-grade design for 0–65°C operation
- EMC: Designed for industrial electromagnetic compatibility environments

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### 9. Additional Information

Warranty:
Standard manufacturer warranty (contact Trycom for details). Covers defects in materials and workmanship under normal use.

Technical Support:
- Email and phone support available through Trycom Technology Co., Ltd.
- Firmware updates and utilities downloadable from the manufacturer’s website.

Maintenance:
- Periodic inspection of power and communication cables recommended.
- Ensure adequate ventilation and avoid exposure to moisture.
- Firmware can be updated via web or utility interface.

Software & Drivers:
- Serial Server Admin Utility: For device discovery, configuration, and monitoring.
- Virtual COM Drivers: For Windows XP, Vista, 7, 2000, 2003/2008 Server (32/64-bit).
- TRPCOM.EXE Utility: For loopback and communication testing.

Firmware Updates:
- Available from Trycom’s website.
- Upgrades can be applied via Web Console or Admin Utility.

Factory Default Recovery:
- Press and hold the reset button until the PWR LED turns off, then reboot.
- Restores IP, port, and password settings to default.

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### Summary

The Trycom TRP-C34H is a robust, industrial-grade 32-bit serial device server that bridges traditional serial communication with modern Ethernet networks. With four configurable RS-232/422/485 ports, multiple operation modes, and advanced management features, it provides a flexible and scalable solution for remote device connectivity. Its hardware protection, wide power range, and industrial temperature tolerance make it ideal for automation, data acquisition, and control applications. Expandable via USB modules, the TRP-C34H can support up to 16 serial ports or 24 digital I/O channels, offering exceptional versatility for system integrators and industrial network engineers.