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White rectangular wall-mounted access control terminal with LCD screen and keypad

ZKTECO

ZKTECO SC203 Access Control Time Clock Door Bell

SKU CH-WGAX-5MGDD

An access control time clock supporting 30,000 ID cards and 50,000 transactions with TCP/IP, RS232/485, USB-Host and full door lock control

Mode: Select SC203+ID

  • Holds up to 30000 ID cards for large teams
  • Stores 50000 transactions for long audit trails
  • Connects via TCP/IP, RS232/485 and USB-Host
  • Controls lock, sensor, exit button, alarm and door bell
  • Wiegand in/out enables master-slave or panel reader setups

Access Control for Small Sites

The ZKTECO SC203 is an access control and time attendance terminal designed for houses, small offices and factories. It supports up to 30000 ID card users and stores 50000 transaction records. Communication options include TCP/IP, RS232, RS485 and USB-Host for data transfer. The unit integrates lock control, door sensor, exit button, alarm and door bell interfaces in one device.

Replaces Standalone Readers

This terminal replaces separate card readers and controllers by combining Wiegand input and output for master-slave setups or third-party panel connection. The jump is worth it when you need anti-passback, work codes or SMS functions without adding extra hardware. Standard ID card capacity covers most small installations, while IC card support remains optional for future upgrades.

Simple Wall Mount Setup

Installation uses a standard 12V DC supply and the built-in LCD menu for local configuration. PC software can also push settings over the network. Common issues include wiring the Wiegand polarity incorrectly or exceeding the 20 to 80 percent humidity range in exposed locations. The operating temperature window of 0 to 45 °C suits indoor and sheltered outdoor use.

Highlights

  • Holds up to 30000 ID cards for large teams
  • Stores 50000 transactions for long audit trails
  • Connects via TCP/IP, RS232/485 and USB-Host
  • Controls lock, sensor, exit button, alarm and door bell
  • Wiegand in/out enables master-slave or panel reader setups

Specifications

No published specifications for this item yet.

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Questions about this item

What connections does the 12V DC power supply need for the lock, door sensor, exit button, alarm and door bell?

The access control interface provides terminals for a third-party electric lock, door sensor, exit button, alarm and door bell, all powered from the 12V DC supply.

Which communication ports must be wired for TCP/IP, RS232/485 and USB-Host during installation, and which step is often missed?

Connect the Ethernet cable for TCP/IP, the RS232 or RS485 serial lines, and the USB-Host port for data transfer; the step often missed is terminating the RS485 bus correctly.

How many ID card templates and transaction records can the device store before old data must be cleared or archived?

The unit holds up to 30000 ID card templates and 50000 transaction records; when either limit is reached you must offload data via USB-Host or network to continue logging.

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