


ATC-105 RS-232 to RS-485/RS-422 Photoelectric Isolation Interface Converter
Product Summary:
ATC-105 is a compact and efficient RS-232 to RS-485/RS-422 photoelectric isolation interface converter designed for industrial environments with excellent ESD, lightning protection, and wide communication compatibility.
Key Features:
Supports EIA/TIA RS-232C, RS-422, and RS-485
Built-in photoelectric isolator with 3500VRMS isolation voltage
600W (RS-232) & 1000W (RS-422/RS-485) lightning surge protection
Transmission speed: 0-115.2 kbps
Transmission distance: up to 5 km
Operation mode: Half/full duplex
Compact plastic shell: 76mm x 54mm x 23mm
Signal indication LEDs for TD, RD, and PWR
Wide temperature operation: -20℃ to 70℃
Applications:
Industrial automation & distribution systems
Road traffic & CCTV monitoring
Security & intelligent gate access systems
Point-to-point & point-to-multipoint communication networks
Product Benefits:
Easy RS-232 to RS-485/422 signal conversion
High voltage isolation enhances device safety
Built-in automatic direction control – no software changes required
Multi-point communication with up to 128 devices
Robust design ensures reliable operation in harsh environments
FAQs:
Q1: What type of devices can be connected with ATC-105?
A1: It can connect PCs, industrial computers, and portable systems to RS-485/RS-422 devices in industrial networks.
Q2: Does the ATC-105 require external power for RS-232 operation?
A2: No, RS-232 operation uses serial port power theft; external power is only needed for RS-485/422 modes.
Q3: Is software configuration needed for RS-485 control?
A3: No software modification is needed—ATC-105 provides fully transparent RS-485 communication.