Editorial Technical Reference

Access Controller

This page explains how Access Controller is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A hardware component within a Key Storage Memory system that manages and regulates access to stored cryptographic keys or sensitive data.

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Product Specifications

Technical details and manufacturing context for Access Controller

Definition
The Access Controller is a critical security component embedded within Key Storage Memory systems. It functions as the gatekeeper, implementing access control policies to authenticate and authorize requests before granting read, write, or execute permissions to the protected memory areas containing cryptographic keys or other sensitive information. It interfaces with the system's security protocols to prevent unauthorized access. The controller operates by receiving access requests (e.g., read, write) along with authentication credentials or tokens. It validates these credentials against stored security policies or an internal access control list (ACL). Upon successful authentication and authorization, it enables the necessary electrical pathways or signals to allow the requesting entity (e.g., a CPU, secure element) to interact with the designated memory cells. Failed attempts are logged and blocked. This component is designed for integration into secure systems where data protection is paramount. It supports communication interfaces such as I2C, SPI, and UART, allowing flexible connection to host controllers. The operating voltage range is 12–24 V DC, with a current consumption of ≤50 mA at 12 V DC in idle mode. Access time is ≤10 ms. It operates within a temperature range of -40 to +85 °C and can be stored at -55 to +125 °C. Humidity tolerance is 5–95% RH (non-condensing). The device offers ingress protection ratings from IP40 to IP65, depending on the enclosure. Materials include FR4, ABS, and stainless steel, with a weight of ≤50 g and dimensions of 25 × 25 × 5 mm. Tamper resistance meets FIPS 140-2 Level 3 requirements. All specifications are reference values; verify model-specific details with the manufacturer.
Working Principle
The controller receives access requests with credentials, validates them against an internal ACL or security policies, and upon success, enables electrical pathways to the memory cells. Failed attempts are logged and blocked. It supports I2C, SPI, and UART interfaces for host communication.
Common Materials
Semiconductor (Silicon)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Operating Voltage12–24 V DC VOutside range may cause malfunction.IEC 62368-1
Current Consumption≤ 50 mAAt 12 V DC, idle mode.
Communication InterfaceI2C, SPI, UARTSelect according to host controller.
Access Time≤ 10 msTime to grant access after request.
Tamper ResistanceLevel 3Meets physical security requirements.FIPS 140-2
Operating Temperature-40–+85 °CExtended range available on request.IEC 60068-2-1/2
Storage Temperature-55–+125 °CNon-operating.IEC 60068-2-1/2
Humidity5–95 % RHNon-condensing.IEC 60068-2-78
Ingress ProtectionIP40–IP65Higher IP for harsh environments.IEC 60529
MaterialFR4, ABS, stainless steelStainless steel for tamper-proof.UL 94 V-0
Weight≤ 50 gDepends on enclosure.
Dimensions25 × 25 × 5 mmCustom sizes available.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Authentication Logic Unit
    Processes and validates incoming authentication credentials (e.g., passwords, digital signatures, biometric data).
    Material: Semiconductor
  • Policy Enforcement Module
    Contains and executes the access control rules (ACL) to determine if a request is authorized.
    Material: Semiconductor
  • I/O Interface
    Manages the electrical and protocol-level communication with the host system and the memory array.
    Material: Semiconductor, Metal (for contacts)

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Key Storage Memory
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (sealed enclosure, typically 1 atm)
other spec: Humidity: 5% to 95% non-condensing, MTBF: >100,000 hours, Power: 5V DC ±5%, 500mA max
temperature: 0°C to 70°C (operational), -40°C to 85°C (storage)
Media Compatibility
✓ Secure data centers (controlled environment) ✓ Banking/financial hardware security modules ✓ Government/military cryptographic systems
Unsuitable: Outdoor/uncontrolled environments with dust, moisture, or extreme temperature fluctuations
Sizing Data Required
  • Number of concurrent cryptographic operations/sec
  • Storage capacity for cryptographic keys (in keys or MB)
  • Required security certification level (e.g., FIPS 140-2 Level 3, Common Criteria)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Electronic component degradation
Cause: Thermal cycling and voltage spikes leading to capacitor failure, transistor breakdown, or PCB trace corrosion
Mechanical wear in locking mechanisms
Cause: Friction, misalignment, and repeated stress cycles causing gear wear, solenoid failure, or latch deformation
Maintenance Indicators
  • Intermittent access denial or delayed response despite valid credentials
  • Unusual buzzing, grinding, or clicking noises during operation
Engineering Tips
  • Implement regular thermal management checks and surge protection to prevent electronic overheating and power anomalies
  • Establish a preventive lubrication and alignment schedule for mechanical components, using manufacturer-recommended lubricants

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI/BHMA A156.10 - Power Operated Pedestrian Doors

Quoted from the published standard.

Manufacturing Precision
  • Door Position Accuracy: +/- 2mm
  • Card Reader Alignment: +/- 0.5mm
Quality Inspection
  • Functional Safety Test (Emergency Release & Fail-Safe Operation)
  • Environmental Durability Test (IP Rating Verification & Temperature Cycling)

Manufacturers of Access Controller

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

ZTE Corporation
Shanghai, CN
Approx. 31,000 staff
Also makes: Network Switch, Energy Storage/Transfer Element (for active systems)
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry
USR IOT Technology
Jinan, Shandong, CN
Also makes: Embedded Industrial PC, HMI Touchscreen, Device Server and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
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Manufacturing capability
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Frequently Asked Questions

What is the operating voltage range?

The operating voltage is 12–24 V DC. Ensure your system provides this range; outside this range may cause malfunction.

Which communication interfaces are supported?

The controller supports I2C, SPI, and UART. Select the interface according to your host controller.

What is the access time?

The access time is ≤10 ms, meaning it takes at most 10 ms to grant access after a request.

What tamper resistance does it offer?

It meets FIPS 140-2 Level 3 physical security requirements. Verify compliance with your specific model.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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