





ATC-131 Port Powered RS-232 Isolator
Product Summary:
The ATC-131 is a compact, port-powered RS-232 isolator that offers 2500V RMS isolation to protect transmit and receive lines from electrical surges, static, and ground loops.
Key Features:
2500V RMS isolation protection
Supports baud rates up to 57.6Kbps
No external power supply needed
Compact plastic enclosure (63x33x17mm)
Conforms to EIA RS-232 and CCITT V.24 standards
Asynchronous full duplex communication
Operates in wide temperature range: -20°C to 70°C
DB9 Male to DB9 Female RS-232 connection
Applications:
Banking, railway, and telecom industries
Government, insurance, and finance sectors
Protecting modems, routers, multi-user terminals
Safeguarding non-ground RS-232 devices and program-controlled exchanges
Useful in UNIX-based multi-user systems
Product Benefits:
Prevents ground loop and surge-related device damage
Enhances device longevity and reliability
Simplifies installation—plug-and-play with RS-232 ports
Ensures stable, noise-free serial communication
Supports various industrial and commercial automation systems
FAQ:
Q1. Does the ATC-131 require an external power supply?
A: No, it is port-powered via the RS-232 TXD, RTS, or DTR lines.
Q2. Can it work without handshake signals?
A: At least one handshake line on both sides is required, but their signal is not passed through.
Q3. What kind of protection does it offer?
A: It provides 2500V RMS isolation and protection from surges, static, and ground loops.