General
Number of ports	2
Standards	RS-232, RS-422, RS-485
Pull high/low resistance for RS-485	1 kΩ, 150 kΩ

The Moxa TCC-100-T is an industrial serial converter that converts RS-232 signals into RS-422 or RS-485. It is designed for use in demanding environments where robust and reliable data transmission is required. The device features two serial ports connected via a terminal block and supports the standards RS-232, RS-422, and RS-485. The baud rate can be set between 50 bps and 921.6 kbps, including non-standard baud rates. The TCC-100-T models are designed for use in extreme temperatures, with an operating temperature range of -40 to 85 °C, making them suitable for industrial applications in outdoor environments or in climatically stressed rooms.

Applications

The converter is suitable for applications requiring conversion of RS-232 signals to RS-422 or RS-485, for example in automation technology, machine control, or process industry. Support for 2-wire and 4-wire RS-485 as well as optional RTS/CTS signals for RS-422 expands the range of applications. The automatic data direction control (ADDC) for RS-485 enables easy integration into existing systems without manual configuration of data direction.

Functions and Equipment in Detail

The device features LED indicators for monitoring the power supply (Power), data transmission (Tx), and data reception (Rx). Connections are made via a terminal block, ensuring secure and durable wiring. Mounting is possible either on the wall or on a DIN rail structure, enabling flexible installation in various industrial environments. The TCC-100-T models are not equipped with galvanic isolation; this feature is only available in the -I models (TCC-100I and TCC-100I-T).

Technology Explained Simply

The conversion from RS-232 to RS-422 or RS-485 is performed by the integrated logic of the converter. RS-232 is a serial standard with simple but sensitive signal transmission, whereas RS-422 and RS-485 use more robust differential signals that operate stably over long distances and in noise-sensitive environments. Support for pull-high/low resistors (1 kΩ and 150 kΩ) as well as termination resistors (120 Ohm, 120 kΩ) allows optimal adaptation to various network topologies. The automatic data direction control (ADDC) for RS-485 detects the data direction automatically, simplifying configuration.

Compatibility and Accessories

The converter is compatible with devices using RS-232, RS-425, or RS-485 interfaces. The use of RS-485 in 2-wire or 4-wire configuration allows flexible connection to various systems. Optional RTS/CTS signals for RS-422 support hardware flow control, which is useful for data transmissions with high volumes or sensitive devices. The TCC-100-T models are not equipped with galvanic isolation; for applications requiring enhanced noise protection, the -I models are suitable.

Mounting and Installation

Mounting is done either on the wall or on a DIN rail structure, with the devices equipped with appropriate mounting elements. Terminal block connections enable secure and durable wiring. The LED indicators facilitate diagnosis and status monitoring during installation and operation. Installation requires no special tools or additional components; wiring is done directly via the terminal block.

Advantages in Operation

Operation of the TCC-100-T is simple and low-maintenance. The robust design and wide temperature range of -40 to 85 °C ensure high reliability in harsh environments. Support for non-standard baud rates and flexible configuration of the RS-485 connection (2-wire or 4-wire) increase adaptability to existing systems. The LED indicators enable quick fault diagnosis, and the simple mounting reduces installation time.