TCC-120/ TCC-120I


Features and Benefits

Boost serial signal to extend transmission distance
Wall or DIN-rail mounting
Terminal block for easy wiring
Power input from terminal block
DIP switch setting for built-in terminator (120 ohms)
Boost RS-422 or RS-485 signal, or convert RS-422 to RS-485
2 KV isolation protection (TCC-120I)


The TCC-120 and TCC-120I are RS-422/485 converters/repeaters designed to extend RS-422/485 transmission distance. Both products have a superior industrial-grade design that includes DIN-rail mounting, terminal block wiring, and external terminal block for power. In addition, the TCC-120I supports optical isolation for system protection. The TCC-120 and TCC-120I are ideal RS-422/485 converters/repeaters for critical industrial environments.

Serial Communication
Connectors Terminal Block on both ends
Baudrate 50 bps to 921.6 Kbps
Signals RS-422/485-4w: TxD+, TxD-, RxD+, RxD-
RS-485-2w: Data+, Data-
RS-485 Data Direction Control ADDC® (automatic data direction control)
ESD Protection 15 KV for all signals
Optical Isolation 2 KV (TCC-120I only)
Physical Characteristics
Housing Aluminum
Dimensions 67 x 100.4 x 22 mm (2.64 x 3.93 x 0.87 in)
Weight 148 ± 5 g
Environmental Limits
Operating Temperature -20 to 60°C (-4 to 140°F)
Storage Temperature -20 to 85°C (-4 to 176°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Power Requirements
Source of Power Input Power input jack
Input Voltage 12 to 48 VDC
Power Consumption TCC-120: 65 mA @ 12 V
TCC-120I: 180 mA @ 12 V
Voltage Reversal Protection Protects against V+/V- reversal
Over Current Protection Protects against two signals shorted together
Standards and Certifications
Safety UL 60950-1
EMI FCC Part 15 Subpart B Class B
EMS EN 61000-4-2 (ESD) Level 2,
EN 61000-4-3 (RS) Level 2,
EN 61000-4-4 (EFT) Level 2,
EN 61000-4-5 (Surge) Level 2,
EN 61000-4-6 (CS) Level 2,
EN 61000-4-8 (PFMF) Level 1
Green Product RoHS, CRoHS, WEEE
MTBF (mean time between failures)
Time 1,949,025 hrs
Database Telcordia (Bellcore), GB
Warranty Period 5 years
Details See