The Moxa TCC-80 is a compact port-powered RS-232 to RS-422/485 converter with auto baudrate detection, ADDC, and built-in 120 Ω termination. Draws power from RS-232 host; optional 5–12 VDC external supply. 300 bps to 115.2 kbps, 0 to 60°C.
The Moxa TCC-80 is a compact, port-powered RS-232 to RS-422/485 media converter that draws power directly from the host PC’s RS-232 TxD, RTS, and DTR lines — no external power supply required for most installations. Designed for desktop use, the TCC-80 converts RS-232 signals to RS-422 full-duplex or RS-485 2-wire and 4-wire, extending serial transmission distance without the need for additional cabling or power infrastructure. External 5–12 VDC power can be added via a power jack if the RS-232 host has insufficient drive current or if cable runs are long.
The TCC-80 draws approximately 50 mW from the RS-232 port. Standard PC COM ports provide 70–90 mW when TxD, RTS, and DTR are connected, making the TCC-80 self-powered in most PC-connected applications. RS-232 cable length should be kept under 15 m at 9600 bps to minimise power loss. The RS-232 port is a DB9 female socket. DTR, DSR, DCD, CTS, and RTS pins are internally shorted. Baudrate range is 300 bps to 115.2 kbps with automatic detection.
Primary power is drawn from the RS-232 port. Optional external power: 5 to 12 VDC via power input jack, drawing 30 mA. Operating temperature is 0 to 60°C. Storage temperature is -20 to 75°C. Ambient humidity tolerance is 5 to 95% non-condensing. Plastic top cover with metal base plate; weighs 50 g.
UL 60950-1, EN 55032/35, CISPR 32, FCC Part 15B Class A, CE. MTBF: 2,781,161 hours (Telcordia/GB).
| Category | Specification | Value |
|---|---|---|
| Serial Interface | No. of Ports | 2 (1 x RS-232 DB9F, 1 x RS-422/485 terminal block) |
| Serial Interface | RS-232 Connector | DB9 female |
| Serial Interface | RS-422/485 Connector | Terminal block |
| Serial Interface | Standards | RS-232, RS-422, RS-485 |
| Serial Interface | Baudrate | 300 bps to 115.2 kbps (auto-detect) |
| Serial Interface | RS-485 ADDC | Yes (Automatic Data Direction Control) |
| Serial Interface | RS-485 Terminator | N/A, 120 Ω, 120 kΩ (built-in) |
| Serial Interface | Isolation | None |
| Serial Signals | RS-232 | TxD, RxD, GND (DTR/DSR/DCD/CTS/RTS internally shorted) |
| Serial Signals | RS-422 | Tx+, Tx-, Rx+, Rx-, GND |
| Serial Signals | RS-485-4w | Tx+, Tx-, Rx+, Rx-, GND |
| Serial Signals | RS-485-2w | Data+, Data-, GND |
| Power | Primary Source | Port-powered from RS-232 TxD, RTS, DTR |
| Power | External Input Voltage | 5 to 12 VDC (optional) |
| Power | External Input Current | 30 mA @ 5 to 12 VDC |
| Power | No. of Power Inputs | 1 (power input jack) |
| Power | Overload Protection | Yes |
| Physical | Housing | Plastic top / metal base, IP30 |
| Physical | Dimensions | 42 x 80 x 22 mm |
| Physical | Weight | 50 g |
| Physical | Installation | Desktop |
| Environmental | Operating Temperature | 0 to 60°C (32 to 140°F) |
| Environmental | Storage Temperature | -20 to 75°C |
| Environmental | Ambient Relative Humidity | 5 to 95% (non-condensing) |
| Certifications | Safety | UL 60950-1 |
| Certifications | EMC | EN 55032/35, CISPR 32, FCC Part 15B Class A |
| MTBF | Time | 2,781,161 hrs (Telcordia/GB) |
| Warranty | Period | 5 years |
Same day dispatch on all stocked items.
