EXSYS EX-47920 RS-232 Serial Converter Repeater Isolator, Black

RS-232 serial converter, repeater, and isolator in one compact metal housing. The EX-47920 regenerates and optically isolates RS-232 signals, protecting connected equipment from ground loops, surges, and ESD up to 15 kV. With support for data rates up to 115.2 kbps and all standard modem control signals, it ensures reliable communication over extended distances and in harsh electrical environments.

Advantages

Optical isolation of 2.5 kV RMS breaks ground loops and eliminates common-mode noise. The repeater function restores signal integrity, allowing cable runs beyond the standard RS-232 limit. Both port-powered and external DC operation offer flexible deployment. LED indicators for power, TxD, and RxD provide instant status feedback.

Suitable for

• Industrial automation and PLC programming
• Point-of-sale terminals and barcode scanners
• Laboratory instruments and data acquisition
• Building management and access control systems
• Any RS-232 link exposed to electrical interference

Key specifications

• Interface: RS-232 (EIA/TIA-232)
• Isolation: 2.5 kV RMS optical, 3.5 kV peak
• Data rate: up to 115.2 kbps
• Connectors: 1x DB9 male, 1x DB9 female
• Signals: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
• Power: 9-12 V DC (300 mA) or port-powered, <1 W consumption
• ESD protection: 15 kV
• Operating temperature: 0°C to 50°C
• Mounting: desktop or wall-mountable
• Certifications: CE, FCC

Recommendations

For reliable RS-232 communication in noisy industrial environments, the EX-47920 is an essential safeguard. Its optical isolation and signal regeneration prevent data corruption and equipment damage, making it a cost-effective solution for extending serial links and protecting valuable hardware.