Description Dahua IPM-AE7-0020A Wiegand Interface Module – RS-485 to Wiegand Converter The Dahua IPM-AE7-0020A Wiegand Interface Module bridges the gap between ANPR camera systems and access control platforms. Converting RS-485 signals to 26-bit Wiegand format, this compact device enables seamless integration of vehicle recognition technology with existing security infrastructure. Essential Signal Conversion Technology RS-485 to Wiegand Translation Automatic number plate recognition cameras typically transmit data via RS-485 protocol, whilst many access control systems require Wiegand input. This interface module solves compatibility challenges by converting signals between these two formats. Consequently, organisations can integrate advanced ANPR capabilities without replacing their current access control hardware. Compact and Efficient Design Measuring just 99.0mm × 71.0mm × 16.6mm and weighing 160 grams, the module fits easily within existing control cabinets. Constructed from electro-galvanised sheet material, it provides reliable protection for internal components. Furthermore, the device consumes only 0.2 watts of power, making it suitable for continuous operation without significant energy costs. Technical Specifications Specification Details Model IPM-AE7-0020A Function Converts RS-485 signal to Wiegand Wiegand Format 26-bit Dimensions (L×W×H) 99.0 mm × 71.0 mm × 16.6 mm (3.9″ × 2.8″ × 0.7″) Material Electro-galvanised sheet Power Supply 12V DC Power Consumption 0.2 W Weight 160 g (0.35 lb) Practical Integration Scenarios Corporate Car Park Systems Businesses installing new ANPR cameras often discover their existing barrier controllers only accept Wiegand signals. Rather than replacing functional equipment, the interface module connects modern cameras to legacy systems. This approach reduces upgrade costs whilst extending the lifespan of working infrastructure. Multi-Site Facilities Organisations managing multiple locations benefit from standardised access control platforms. When individual sites use different camera technologies, the Wiegand interface ensures consistent data formatting across all premises. Therefore, centralised monitoring systems receive uniform information regardless of camera manufacturer or model. Residential Development Access Housing estates implementing vehicle recognition face similar compatibility challenges. Installing this module allows property managers to add ANPR functionality without overhauling established security systems. Additionally, the low power consumption means minimal impact on operating costs over extended periods. Installation Advantages Connecting the module requires basic wiring between the ANPR camera’s RS-485 output and the access control system’s Wiegand input. The straightforward configuration eliminates complex programming or specialist knowledge. Meanwhile, the compact dimensions allow installation within tight spaces inside control cabinets or junction boxes. Frequently Asked Questions Q1: What is the difference between RS-485 and Wiegand protocols? RS-485 is a serial communication standard used by many modern devices, whilst Wiegand is an older protocol commonly found in access control systems. Both transmit data, but they use different electrical signalling methods requiring conversion for compatibility. Q2: Does the IPM-AE7-0020A work with all Dahua ANPR cameras? This module is designed to work with Dahua ANPR cameras featuring RS-485 output. Check your specific camera model’s specifications to confirm RS-485 support before purchasing the interface module. Q3: Can multiple interface modules be used on one access control system? Yes, provided your access control system has sufficient Wiegand input ports. Each module handles one camera’s signal conversion, allowing multiple ANPR cameras to connect to a single controller. Q4: What maintenance does the Wiegand interface module require? The module requires minimal maintenance due to its simple design and low power consumption. Periodic visual inspections ensure connections remain secure and the housing shows no physical damage. Q5: How does 26-bit Wiegand format affect data transmission? The 26-bit format is the most common Wiegand standard, supporting facility codes and card numbers. This format provides sufficient data capacity for vehicle registration information whilst maintaining compatibility with most access control systems.
