General
Number of ports	2
EMC	EN 55032/35
MTBF	2.781.161 Stunden (Telcordia Standard)
Overcurrent protection

The Moxa TCC-80 is a compact media converter that converts signals from an RS-232 interface to RS-422 or RS-485. It serves as a bridge between devices with different serial interfaces and is specifically designed for industrial applications where reliable, space-saving, and simple installation is required. The device operates without an external power supply, as it can be powered via the RS-232 interface (port-powered). Alternatively, power supply via USB or an external power adapter is possible, with a USB power cable included in the delivery scope.

Applications

The TCC-80 is suitable for applications in industrial automation, such as connecting control devices, sensors, printers, or other serial end devices communicating via RS-422/485 to an RS-232-capable host system. The compact design and desktop mounting allow for flexible placement, even in confined spaces. The integrated termination and automatic data direction control (ADDC) for RS-485 reduce installation complexity and eliminate the need for additional software configurations.

Functions and Equipment in Detail

The device features two serial ports: one RS-232 connection and one RS-422/485 connection. The signals include TxD, RxD, and GND for RS-232, as well as Tx+/-, Rx+/-, and GND for RS-422, and Data+/- with GND for RS-485 2-wire mode. The baud rate can be set between 300 bps and 115.2 kbps. The integrated termination with 120 Ohm, which can be activated via a DIP switch, ensures stable signal transmission over long distances. An LED indicator shows whether sufficient power is being drawn from the RS-232 interface.

Technology Explained Simply

Signal conversion is performed by an integrated converter that adapts the electrical characteristics of the interfaces. RS-232 is a point-to-point interface with higher voltage, while RS-422 and RS-485 are designed for longer distances and multiple participants. The automatic data direction control (ADDC) for RS-485 detects whether data is being transmitted or received without requiring an additional control line or software control. The isolation of 2.5 kV (only for the TCC-80I model) protects against overvoltage and prevents ground loops, which is important in industrial environments. Power supply is via 5 to 12 VDC, with the TCC-80I consuming 20 mA and the TCC-80 consuming 30 mA. An overcurrent protection is integrated.

Compatibility and Accessories

The TCC-80 is compatible with devices featuring RS-232 interfaces and enables connection to RS-422/485 networks. The connections are available either as a terminal block (TCC-80/80I) or as a DB9 connector (TCC-80-DB9/80I-DB9). The DB9 variant is suitable for standard PC connections, while the terminal block is intended for industrial cable connections. The device is not designed for outdoor use, as the protection rating IP30 only protects against finger contact and limited splashing water.

Mounting and Installation

The device is designed for desktop use and can be placed directly on a surface. Mounting requires no special tools. Wiring is done via the terminal blocks or the DB9 connector. Power supply can be via the RS-232 interface, with the LED indicator confirming power flow. Alternatively, a USB cable (50 cm, included in delivery) or an external power adapter can be used.

Advantages in Operation

The TCC-80 offers reliable signal conversion without additional power supply, simplifying installation. The integrated termination and automatic data direction control reduce configuration effort. The robust construction with a metal base and plastic cover, along with certifications according to EN 55032/35, CISPR 32, FCC Part 15B Class A, and IEC 61000-4-2 to -4-8, ensures stable operation in electromagnetically noisy environments. The operating temperature of 0 to 60 °C and storage temperature of -20 to 75 °C make the device suitable for a wide range of operating conditions. The MTBF is 2,781,161 hours according to Telcordia Standard, indicating high operational reliability.

Delivery Contents

Included in the delivery are: 1x TCC-80 or TCC-80I device, 1x USB power cable (50 cm), 1x quick start guide, and 1x warranty card.

Certifications and Standards

The device complies with electromagnetic compatibility (EMC) standards EN 55032/35, EMI CISPR 32, and FCC Part 15B Class A, as well as EMS according to IEC 61000-4-2 to -4-8. The safety standard UL 60950-1 is met. The vibration test standard IEC 60068-2-6 is also fulfilled. The MTBF was determined according to Telcordia Standard.

Protection Rating and Environmental Conditions

The protection rating IP30 protects against finger contact and splashing water, but not against dust or rain. The device is intended for indoor use. The operating temperature ranges from 0 to 60 °C, and the storage temperature from -20 to 75 °C. The humidity is 5 to 95 %, non-condensing.

Mechanical Properties

The housing consists of a plastic cover and a metal base. Dimensions are 42 x 80 x 22 mm for the terminal block variant and 42 x 91 x 23.6 mm for the DB9 variant. Weight is 50 g. Mounting is as a desktop device.

Power Supply

The input voltage is 5 to 12 VDC. Current consumption is 30 mA for the TCC-80 and 20 mA for the TCC-80I. Power supply is via the RS-232 interface (port-powered), optionally via USB or a power adapter. An overcurrent protection is integrated.

Serial Interfaces

The standards include RS-232, RS-422, and RS-485 (2- and 4-wire). Connections are available as terminal block or DB9 connector. Signals include TxD, RxD, GND, Tx+/-, Rx+/-, Data+/-, GND. The baud rate ranges from 300 bps to 115.2 kbps. Data direction for RS-485 is automatic (ADDC). Termination is 120 Ohm, integrated and activatable via DIP switch. Isolation is 2.5 kV (only TCC-80I model).