Citizen IF1-WFN4 Ethernet Interface Module with Wi-Fi
Overview
The IF1-WFN4 is a network connectivity upgrade module that adds wired Ethernet and dual-band Wi-Fi capability to compatible Citizen thermal printers. When paired with the OPT-802 dongle, it enables XML-based network integration and wireless deployment in retail, warehouse, and logistics environments where fixed infrastructure is impractical or expensive to run to every device.
Compatibility
The IF1-WFN4 requires the OPT-802 optional dongle and works with the following Citizen printer models: CT-S6XX, CT-S8XX, CL-S400DT, CL-E720, and CL-S7XXIII series. Verify your specific model supports the OPT-802 before ordering; not all variants in a series are compatible. This accessory does not work standalone — it is installed as a rear-mount module paired with the dongle.
Network Features
Ethernet support (RJ-45) provides low-latency wired connectivity with XML command protocol for direct integration into enterprise print environments. Dual-band Wi-Fi (2.4GHz and 5GHz) reduces connection congestion in dense retail or warehouse deployments — 5GHz offers shorter range but lower interference, making it ideal for point-of-sale or high-speed label operations where throughput matters.
Installation Notes
Installation requires removal of the printer's rear cover and connection of the IF1-WFN4 module via the OPT-802 dongle interface. Network configuration typically occurs through the printer's embedded web interface or Citizen device management software. Consult your printer's installation manual and OPT-802 documentation for detailed pin assignments and firmware compatibility.
