The ZKTeco AHEB-0808 IO Expansion Board is a versatile addition to the Atlas access control system, designed to enhance its input and output capabilities. Featuring 8 supervised inputs and 8 relay outputs, it allows for seamless integration of additional devices and sensors, thereby expanding the system’s monitoring and control functions. This expansion board utilizes OSDP V2.2 communication over RS-485, ensuring secure and reliable data transmission between the board and the main controller. Its compact design, measuring 7.6 inches in width, 4.6 inches in length, and 0.7 inches in height, facilitates easy installation within various control panel configurations. The AHEB-0808 operates efficiently within a voltage range of 12 to 24 VDC, offering flexibility in power supply options.
One of the standout features of the AHEB-0808 is its scalability, supporting up to 384 inputs and 385 outputs when connected to a single AHDU controller. This scalability allows for significant expansion of the access control system, accommodating the needs of growing facilities without compromising performance. The board’s supervised inputs are equipped with 4-state monitoring, capable of detecting resistance changes as low as 5% ohms, which enhances the system’s ability to identify and respond to potential security breaches, such as short-circuit attacks. Additionally, the AHEB-0808 supports various relay inputs and outputs, making it compatible with a wide range of security sensors and devices, thereby enhancing the system’s overall versatility.
Integration with third-party systems is made straightforward through the AHEB-0808‘s support for standard communication protocols like OSDP and the provision of a RESTful API. This compatibility facilitates seamless integration with existing building management systems, such as OPC, BACnet, and Modbus, allowing for centralized control and monitoring. The board’s communication is secured with AES-128 encryption, ensuring that data transmitted between devices remains protected against unauthorized access. Furthermore, the AHEB-0808 is compatible with software platforms like Armatura One Security System and the upcoming Cielo365, providing users with intuitive interfaces for system management and configuration.
ZKTeco AHEB-0808 IO Expansion Board for Atlas Panel Features:
- Scalability: Supports up to 384 inputs and 385 outputs with a single AHDU controller and up to 12,801 inputs or outputs with a combination of AHSC-1000 and AHDU series controllers.
- Supervised Inputs: Equipped with 8 supervised inputs that support 4-state monitoring, capable of detecting resistance values with 5% tolerance.
- Relay Outputs: Features 8 Form-C relay outputs with dry contacts, allowing for versatile control of connected devices.
- OSDP Communication: Utilizes OSDP V2.2 protocol over RS-485 for secure and reliable communication with controllers like the AHSC-1000 and AHDU series.
- Third-Party Integration: Supports various relay inputs and outputs, making it suitable for integration with a wide range of security sensors and devices.
- Programmable Input States with Time Zone Management: Allows configuration of input states (Inactive, Active, Short, Open) and scheduling through the Armatura One security platform.
- Universal Voltage Support: Operates on a power input range of 12–24 VDC ± 20%, accommodating various installation requirements.
- Compact Design: Measures 7.6” W x 4.6” L x 0.7” H (193 x 116 x 17.5mm) and weighs 5.8oz (165.3g), suitable for wall mounting.
These features make the AHEB-0808 a versatile and reliable solution for expanding the input and output capabilities of Atlas Panels in various access control applications.
ZKTeco AHEB-0808 Specifications:
| Primary Power |
12 – 24 VDC ± 20%, 550 mA maximum |
| RS-485 Connectivity |
Output: RS-485 standard / OSDP V2.2 (Dedicated for AHSC-1000/ AHDU series controller communication)
Input: RS-485 Input standard / OSDP V2.2 (Dedicated for AHEB series IO expansion board communication) |
| Number of Ports (AHEB-0808) |
1*RS-485
8*supervised input (AUX IN)
8*relay output (AUX OUT)
1* power Input (PWR IN)
1*power output (PWR OUT)
1*power detection (AC Fail)
1* backup battery detection (BAT Fail)
1*tamper input (TMPR) |
| Number of Ports (AHEB-1602) |
1*RS-485
16*supervised input (AUX IN)
2*relay output (AUX OUT)
1* power Input (PWR IN)
1*power output (PWR OUT)
1*power detection (AC Fail)
1* backup battery detection (BAT Fail)
1*tamper input (TMPR) |
| Inputs |
4 state supervision, resistor values (5% tolerance)
Normally open contact: use 1.2k, 2.2k, 4.7k, or 10k
Normally closed contact: use 1.2k, 2.2k, 4.7k, or 10k |
| Outputs (AHEB-0808) |
8 relays
8* Form-C with dry contacts |
| Outputs (AHEB-1602) |
2 relays
2* Form-C with dry contacts |
