ZKTeco C3 100 single door IP access control board with terminal blocks

ZKTeco C3 100 1 Door Access Controller

KTI010050011DCO

Product Description

The ZKTeco C3 100 is an IP-based single-door access control panel engineered for standalone or networked enterprise physical security systems.

Make: ZKTeco
Model: C3-100
Doors Controlled: 1 Door (bi-directional or uni-directional control)
Readers Supported: 2 readers (standard 26-bit Wiegand interface, custom formats configurable)
Cardholder Capacity: 30,000 users
Event Log Capacity: 100,000 transaction events
Onboard Inputs: 2 inputs (1 exit button input and 1 door status sensor input)
Onboard Outputs: 2 Form-C relays (1 lock relay rated 5A @ 36V DC / 8A @ 30V AC; 1 auxiliary relay rated 2A @ 30V AC)
Communication: TCP/IP Ethernet and RS-485 bus
Power Supply: 12V DC, 1.5A nominal (operational range 9.6V DC to 14.4V DC)
Circuit Protection: Over-current, over-voltage, and reverse polarity protection on power and I/O lines
Lock Compatibility: Fail-safe electromagnetic locks, electric strikes, and motorized drop bolts (dry and wet contact modes)
Credential Compatibility: 125 kHz EM-Proximity, 13.56 MHz Mifare, HID Prox, and PIN keypad readers
Firmware Features: Anti-Passback, First-Card Opening, Multi-Card Verification, and Duress Password Entry
Software Compatibility: ZKAccess 3.5 and enterprise TCP/IP management platforms

KTI010050011DCO

Price

₹ 7,304.85 excl. GST

+ 18.00% Tax + Freight Charge

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Product Details
Available Brands	ZKTeco
Unit	Numbers
HSN Code	85437099
Weight	0.35 kg
Warranty	12 Months No-Onsite Warranty
Tags/categories	Automation Access Control, Attendance System Multi Door Controller

1.00 Nos Ready in Stock Dispatched by Tomorrow, Tue, 8th September

About this product .

The ZKTeco C3 100 access control panel is built on a compact 160 mm by 106 mm circuit board designed for dependable wall-mount enclosure mounting. The board features comprehensive onboard circuit protection, including over-current, over-voltage, and reverse polarity safeguards across power terminals and input/output channels. Non-volatile flash memory preserves all credential databases and audit trails even during sudden power failure.
The controller is engineered to manage one door bi-directionally or uni-directionally, providing dedicated interfaces for up to two 26-bit Wiegand readers. It supports an extensive database capacity of up to 30,000 active cardholders and retains up to 100,000 timestamped transaction logs. Full support for multi-technology readers allows seamless integration of EM proximity, Mifare RFID, and HID credential formats.
The board is equipped with two onboard inputs dedicated to a request-to-exit button and a door status sensor. Output switching is handled by two Form-C SPDT relays, including a primary lock relay rated up to 5A at 36V DC (or 8A at 30V AC) and an auxiliary relay rated at 2A at 30V AC. The auxiliary relay enables direct linkage to corridor lights, intrusion detection alarms, sirens, or annunciators.
Dual communication capability via TCP/IP Ethernet and RS-485 serial bus allows flexible deployment in standalone, daisy-chained, or large enterprise networked architectures. Network setup is streamlined through automatic IP discovery tools for rapid commissioning with ZKAccess 3.5 software platforms. Advanced firmware functions include integrated anti-passback, first-card opening, multi-card verification, and duress password handling.
The panel operates on a 12V DC, 1.5A external power supply with a broad 9.6V DC to 14.4V DC operating tolerance. Metal enclosure installations provide dedicated physical space and charging leads for an optional 12V rechargeable backup lead-acid battery (they are not included) to ensure uninterrupted physical security during grid outages. Inductive DC electric strikes or electromagnetic locks require standard reverse-biased flyback diodes across lock terminals to protect relay contacts.

Product Information .

Corporate Offices Worship Places Industries, Factories Hospitals, Clinics Shopping Malls, Showrooms Government Buildings, Offices Banks Airports Railways, Bus Stations Conference Rooms Resorts Smart Cities Defense Sectors Power Plants Embassy Server Rooms Pharma Industries Auditorium Conference Hall Emergency Services

Hardware and Software System Compatibility

The ZKTeco C3-100 IP-based access controller provides open physical and logical interfacing for enterprise physical security systems. Designed to manage a single door in either uni-directional or bi-directional configurations, the panel integrates standard credential readers, door locking hardware, physical request-to-exit switches, and auxiliary alarm infrastructure across standardized field-level wiring protocols.

RFID Reader and Keypad Protocol Compatibility

The panel incorporates two onboard reader interface ports operating over the SIA Wiegand standard communication protocol. By default, the firmware decodes industry-standard 26-bit Wiegand data streams, with custom Wiegand formats configurable upon request for specialized credential architectures. The C3-100 is electrically and functionally compatible with:

125 kHz EM Proximity Readers: Standard 125 kHz frequency proximity card and key fob readers.
13.56 MHz High-Frequency Readers: Mifare smart card readers, HID iClass credentials, and XceedID multi-technology reader hardware.
HID Prox & Legacy Readers: 125 kHz HID Prox access readers communicating via standard Wiegand signalling.
Wiegand PIN Keypads: Digital numeric entry devices transmitting 4-bit, 8-bit, or burst keypad data formatted over Wiegand lines.

For installations utilizing external power supplies for readers, the 0V/GND reference must be tied directly to the common ground terminal of the C3-100 controller board to ensure reliable signal timing and prevent read failure.

Electromechanical Lock Hardware Integration

The controller provides one onboard primary Form-C SPDT relay output designated for door locking hardware. The relay contacts are rated to switch electrical loads up to 5A @ 36V DC or 8A @ 30V AC. The lock circuit can be wired in dry contact (voltage-free) or wet contact (powered) topologies, interfacing directly with:

Fail-Safe Magnetic Locks: Electromagnetic (EM) locks requiring continuous holding power dropped upon access release.
Fail-Secure & Fail-Safe Electric Strikes: Standard door jamb mortise strikes operating on DC or AC voltages within relay contact limits.
Motorized & Solenoid Drop Bolts: Reversible or heavy-duty electro-mechanical locking bolts.

When switching inductive DC lock loads, a parallel reverse-biased diode (such as the FR107 diode) must be installed across the lock coil terminals to suppress back-EMF voltage transients and protect the relay contacts from pitting or contact welding.

Sensors, Auxiliary Inputs, and Annunciator Linkages

Physical peripheral interfacing is managed via two dedicated input loops and one auxiliary Form-C relay:

Door Status Sensor Input: Compatible with dry contact door position switches (magnetic reed switches) for monitoring door ajar and forced-door events.
Exit Device Input: Compatible with standard push-to-exit buttons, request-to-exit (REX) touch bars, and motion-based exit sensors.
Auxiliary Output Relay: SPDT Form-C auxiliary relay rated at 2A @ 30V AC, capable of driving external warning sirens, strobe lights, alarm annunciators, corridor lighting, intrusion detection panels, or secondary gate operators triggered by internal logic.

Network Infrastructure and Management Platforms

Host communications integrate over standard local and wide-area networks using IEEE 802.3 10 BASE-T Ethernet protocols over TCP/IP, or alternatively via two-wire serial RS-485 bus topology. RS-485 daisy-chain configurations require 120-ohm termination jumpers engaged at end-of-line devices. Network settings can be modified via network auto-discovery tools. At the management level, the C3-100 operates natively with ZKAccess 3.5 software and server-based enterprise access control platforms, supporting advanced onboard firmware behaviors including Anti-Passback, First-Card Opening, Multi-Card Verification, and Duress Password Entry.

Power Infrastructure Interfacing

The controller board requires a 12V DC, 1.5A power supply (operating range: 9.6V DC to 14.4V DC) with a baseline standby consumption of approximately 40mA. Integrated over-current, over-voltage, and polarity-reversal protection safeguards the board across all terminal points. When deployed inside an enclosure power supply bundle, reserved physical space and charging leads accommodate a 12V rechargeable backup lead-acid battery (they are not included) to ensure uninterrupted offline operation during mains utility failures.

ZKTeco C3-100 Installation & Wiring Guide

Cabinet Mounting & Environmental Preparation

The ZKTeco C3-100 access control board measures 160 mm in length by 106 mm in width with a net weight of 0.35 kg. Designed for wall-mount installations, the board can be mounted using non-conductive standoffs inside an equipment rack or secured inside the optional powder-coated aluminium enclosure measuring 380 mm (L) × 80 mm (W) × 280 mm (H).

Install the assembly in an indoor environment meeting operational tolerances between 0°C and 45°C (32°F to 113°F) and relative humidity levels between 20% and 80% RH (non-condensing). Maintain sufficient clearance around wiring channels to route power, reader signal, and network cabling cleanly away from high-voltage AC conduits.

Power Supply & Battery Backup Integration

The controller requires a stable 12V DC, 1.5A power supply (operational voltage range: 9.6V DC to 14.4V DC), drawing approximately 40mA in standby state. The mainboard incorporates built-in hardware protection circuits against over-current, over-voltage, and polarity reversal on the main power terminal blocks and all I/O ports.

Connect the regulated 12V DC power output directly to the designated power terminals (+12V and GND).
When utilizing an enclosure with integrated charging capability, space is reserved to install a 12V rechargeable backup lead-acid battery (they are not included) to support uninterrupted access operations during power outages.
Ensure that all external auxiliary power supplies share a common ground (0V/GND) reference with the C3-100 controller board to eliminate communication noise and reader data read failures.

Wiegand Reader & Sensor Connections

The C3-100 supports up to 2 card readers using the standard 26-bit Wiegand protocol (custom Wiegand structures configurable via software). It is compatible with 125 kHz EM-Proximity, 13.56 MHz Mifare, HID Prox, and keypad credentials for bidirectional (entry/exit) or unidirectional door control architectures.

Card Readers: Wire reader power (+12V), Ground (GND), Data 0 (WD0), Data 1 (WD1), and LED/Buzzer lines to the corresponding reader terminal blocks. Maintain common ground tying if reader power is drawn from a separate supply.
Auxiliary Inputs: Wire a normally open (N.O.) momentary exit push button across the Exit Switch terminal and GND. Wire a magnetic reed switch or dry contact sensor across the Door Status terminal and GND to enable door open/close tracking.

Lock Relay Configuration & Inductive Spike Protection

The onboard primary door relay is a Form-C SPDT relay rated for 5A @ 36V DC or 8A @ 30V AC, capable of driving fail-safe electromagnetic (EM) locks, fail-secure electric strikes, or motorized drop bolts. The board also features an auxiliary Form-C SPDT relay rated at 2A @ 30V AC for sirens, alarms, or auxiliary lighting triggers.

Both dry contact (voltage-free) and wet contact configurations are supported. When powering inductive DC locking devices, installers must connect an FR107 reverse-biased flyback diode in parallel across the lock terminals (cathode to positive, anode to negative). Omitting this suppression diode risks welding relay contacts due to high-voltage inductive back-EMF spikes generated during lock disengagement.

TCP/IP & RS-485 Communication Topology

The controller interfaces with host management systems via standard IEEE 802.3 Ethernet TCP/IP networking or an RS-485 serial bus.

TCP/IP: Terminate standard Cat5e/Cat6 patch cabling into the RJ45 Ethernet port for direct local area network communication. Network parameters can be configured using standard software auto-discovery utilities.
RS-485 Bus: When multi-dropping panels via RS-485 serial communication, employ a daisy-chain bus topology. Ensure that a 120-ohm termination resistance jumper is engaged on the end-of-line device to prevent signal reflection.

Diagnostic and Troubleshooting Guide for ZKTeco C3-100 Access Control Panel

When commissioning or servicing the ZKTeco C3-100 single-door IP-based access control panel, systematic diagnostics ensure operational stability. The panel incorporates hardware-level protections against over-current, over-voltage, and polarity reversal on power input and all terminal ports. Field issues typically stem from bus termination, common ground referencing, inductive back-EMF, or credential access logic settings.

TCP/IP and RS-485 Communication Diagnostics

The C3-100 controller communicates with administrative management software (such as ZKAccess 3.5) over standard IEEE 802.3 Ethernet (TCP/IP) or an RS-485 serial bus. If the host platform fails to detect the panel, follow these diagnostic steps:

TCP/IP Ethernet Connectivity: Ensure physical network patch cables are seated correctly. Use administrative software auto-discovery tools to verify and assign static IP parameters compatible with the local subnet. If network communication drops unexpectedly, the onboard controller continues standalone operation, preserving the database of up to 30,000 cardholders and buffering up to 100,000 event transactions in non-volatile flash memory.
RS-485 Bus Architecture: RS-485 serial communication runs strictly in a daisy-chain bus topology. Star or tee wiring taps cause packet reflections and signal dropouts. Verify that 120-ohm termination jumpers are engaged at the physical end-of-line devices on the RS-485 transmission run.

Wiegand Reader Transmission and Ground Faults

The panel features dedicated input ports for up to two 26-bit Wiegand RFID card readers (supporting 125 kHz EM, 13.56 MHz Mifare, HID Prox, or PIN keypads for uni-directional or bi-directional door control). When credential reads fail to register on the controller:

Common Reference Grounding: Card reader communication failure frequently occurs if the 0V/GND of third-party external power supplies is not bridged to the common ground terminal of the C3-100 controller board. Maintain a shared 0V reference line across all power supplies and reader ground terminals.
Format Configuration: The panel defaults to standard 26-bit Wiegand transmission. If using non-standard credential structures, verify that custom Wiegand formats are configured within the management software.

Lock Relay Switching and Back-EMF Protection

The C3-100 features two Form-C SPDT relay outputs: one primary lock relay (rated 5A @ 36V DC or 8A @ 30V AC) and one auxiliary output relay (rated 2A @ 30V AC). If the lock relay fails to release or remains latched, investigate the following:

Back-EMF Diode Suppression: Omission of a flyback diode across inductive DC lock hardware (such as fail-safe electromagnetic locks, electric strikes, or motorized drop bolts) creates high-voltage inductive kickback. These back-EMF spikes can weld internal relay contacts or damage switching paths. Always verify that a parallel reverse-biased diode (FR107) is installed directly across the positive and negative terminals of inductive DC locking devices.
Wiring Modes: Confirm whether the Form-C lock relay is wired for dry contact (voltage-free switching using an external auxiliary power source) or wet contact (powered through the main supply). Ensure connected load currents do not exceed the 5A DC / 8A AC rating.

Access Control Logic and Input Diagnostics

The panel monitors two dedicated digital onboard inputs: one exit button switch and one door status sensor. If valid card presentations or push buttons do not release the lock:

Access Rules and Restrictions: The onboard firmware incorporates advanced access logic, including Anti-Passback, First-Card Opening, Multi-Card Verification, and Duress Password Entry. If valid credentials fail to trigger the door lock, inspect the active access rules in the software platform to ensure credentials are not restricted by an incomplete anti-passback sequence or multi-card verification requirement.
Input Loop Continuity: Verify whether the door status sensor circuit is configured as normally open (NO) or normally closed (NC). An incorrectly configured door sensor loop can trigger unauthorized entry alarms or auxiliary linkages.

Power Supply and Battery Diagnostics

The C3-100 requires a nominal operating input of 12V DC at 1.5A, functioning within an operational tolerance range of 9.6V DC to 14.4V DC with approximately 40mA standby current. Voltage drops below 9.6V DC may cause erratic relay triggering or communication timeouts. If installed in an enclosure with battery backup capability, ensure the connected 12V rechargeable backup lead-acid battery (they are not included) is delivering adequate voltage during mains power interruptions.

Industrial & Commercial Application Scenarios for the ZKTeco C3-100 Controller

Bi-Directional High-Security Checkpoints (Server Rooms & Data Closets)

The ZKTeco C3-100 control panel is engineered to manage one door bi-directionally using two dedicated 26-bit Wiegand reader interfaces. In critical facility environments such as server rooms, network distribution closets, and telecom head-ends, controlling both entry and exit is vital for audit integrity. By pairing two external RFID or keypad readers (such as 125 kHz EM-Proximity, 13.56 MHz Mifare, or HID Prox devices), access can be strictly verified upon both entering and leaving the secure zone.

With an onboard memory capacity for up to 30,000 cardholders and 100,000 non-volatile log transactions, the controller maintains uninterrupted access policy enforcement even if host connectivity drops. Firmware-level Anti-Passback prevents unauthorized card sharing (tailgating) across sensitive doorways, ensuring each recorded entry must be accompanied by an exit transaction before re-entry is permitted.

Restricted Industrial Enclosures & Multi-Card Verification

Manufacturing facilities, research laboratories, and utility sites often house hazardous materials, chemical storage, or high-value inventory like tool cribs. For these risk-prone areas, the C3-100 supports Multi-Card Verification and First-Card Opening directly inside the onboard firmware.

Multi-Card Authorization: Requires multiple authorized personnel to present valid RFID credentials within a specified timeframe before the primary Form-C SPDT relay (rated at 5A @ 36V DC or 8A @ 30V AC) energizes to release heavy-duty electromagnetic locks or electric strikes.
First-Card Opening: Keeps restricted access zones locked outside normal operational shifts until a designated supervisor badge validates entry, automatically initiating standard operational door schedules.
Duress Password Protection: Keypad-equipped Wiegand readers allow operators under coercion to input a duress PIN, opening the entryway while simultaneously activating silent alarm systems via the auxiliary output relay.

Automated Secondary Linkages & Alarm Annunciation

Equipped with one dedicated door status sensor input, one exit button input, and one Form-C auxiliary relay (rated at 2A @ 30V AC), the C3-100 serves as an integration hub for physical access and local warning hardware. When paired with door position switches, the controller detects door-forced or door-propped conditions in real time.

These alarm events trigger programmable auxiliary output linkages to energize external sirens, visual warning strobes, corridor lighting controllers, or intrusion annunciators. The lock relay's dry or wet contact flexibility supports both fail-safe magnetic locks and fail-secure motorized drop bolts, provided inductive spikes are mitigated using a parallel FR107 diode.

Large-Scale Distributed Access Architecture

For mid-sized to enterprise-tier industrial complexes, standalone single-door controllers are networked using standard IEEE 802.3 TCP/IP Ethernet or RS-485 daisy-chain topologies. System integrators manage individual C3-100 boards (measuring 160 mm × 106 mm) distributed across utility corridors, riser rooms, or remote guard shacks back to centralized ZKAccess 3.5 software platforms.

When installed within dedicated powder-coated aluminium enclosures (380 mm × 80 mm × 280 mm), spaces are available to connect a 12V rechargeable backup lead-acid battery (they are not included) to safeguard system operation through power interruptions. Built-in over-current, over-voltage, and reverse polarity protections ensure sustained stability across harsh industrial electrical grids between 0°C and 45°C.

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