The ARA715 Serial Converter is a module designed to reliably convert RS-232 signals to RS-485 , ensuring compatibility and stable communication with the I/O Hub 2 expansion module. Thanks to its compact structure and direct power supply from the RS-232 port, it offers simple and immediate installation without the need for external power supplies. Equipped with a status LED indicator, it supports a wide range of operating temperatures and humidity, making it ideal for security and automation systems that require secure wired connections. With CE certification and resistant materials, it ensures professional integration into advanced systems where reliable wired expansion is required. Dahua
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ARA715 | RS-323 & RS-485 SIGNAL CONVERTER MODULE

The ARA715 Serial Converter is a professional module designed to convert RS-232 signals to RS-485 , optimizing communication with the Hub 2 system's I/O expansion module. Its integration allows you to expand the system's wired capabilities, ensuring stable and secure connections. Thanks to direct power supply via the RS-232 port, the device is extremely simple to install, while the LED indicator allows for immediate monitoring of its operating status. Its compact size and CE certification make it ideal for security systems, automation, and professional applications requiring a reliable serial interface.
Main specifications:
- RS-232 → RS-485 signal conversion for wired I/O expansions
- Direct power supply from Hub 2's RS-232 port
- Built-in LED status indicator
- Wide operating range: –10 °C / +55 °C, humidity 10–90%
- Compact size: 50 × 12.7 × 7.2 mm, weight 5.21 g
- CE certification for professional installations
- Ease of integration with security and automation systems
Further details

Technical data sheet
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Port |
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RS-232 |
1 × RS-232 input port |
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RS-485 |
1 × RS-485 output port |
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Function |
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Indicator Light |
1 power indicator |
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General |
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Power Supply |
Powered by the RS-232 port of Hub 2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Operating Temperature |
-10 °C to +55 °C (+14 °F to +131 °F) |
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Operating Humidity |
10%–90% (RH) |
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Product Dimensions |
50 mm × 12.7 mm × 7.2 mm (1.97" × 0.50" × 0.28") |
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Net Weight |
5.21 g (0.01 lb) |
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Gross Weight |
50 g (0.11 lb) |
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Certifications |
THERE IS |
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Storage Temperature |
-10 °C to +55 °C (+14 °F to +131 °F) |
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Storage Humidity |
10%–90% (RH) |
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Packaging Dimensions |
106 mm × 90 mm × 45 mm (4.17" × 3.54" × 1.77") (L × W × H, 1 in inner carton) |
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