Description
The Moxa IKS-6728A-4GTXSFP-HV-T is a rugged, 24+4G-port modular managed Ethernet switch designed for industrial rackmount deployments. It features 4 Gigabit combo ports and up to 24 fast Ethernet ports, making it ideal for high-bandwidth automation networks. Built with Turbo Ring and Turbo Chain technologies, this high-voltage (HV), wide-temperature (-T) variant ensures reliable data transmission in extreme industrial environments.

Technical Specifications
- Model ID: IKS-6728A-4GTXSFP-HV-T
- Dimensions: 440 mm x 44 mm x 280 mm (1U 19-inch rackmount)
- Weight: 4.10 kg
- Country of Origin: Taiwan
- Power Input: 110/220 VAC/VDC (Isolated High Voltage power supply)
- Port Configuration: 4 10/100/1000BaseT(X) or 100/1000BaseSFP combo ports + modular slots
- Operating Temperature: -40°C to 75°C (-T wide temperature model)
Application Areas
🎛️ Electrical Substation Automation (IEC 61850-3 compliant)
📉 Traffic Control and Intelligent Transportation Systems (ITS)
🏭 Heavy Manufacturing and Process Plant Networks
🌐 Facility SCADA Backbone Architecture
🚢 Maritime Communication Systems
Operational Guidelines
Power-Up / Power-Down Sequence
- Startup: Securely mount the switch into the 19-inch rack frame. Connect the protective grounding wire to the grounding screw. Plug in the high-voltage (HV) power lines to the terminal block. Power on the source breaker; the “Master” or “State” LED will light up green, indicating successful system boot and OS initialization.
- Shutdown: Save all active network configurations via the web console. Turn off the main high-voltage power supply breaker. Wait for all status LEDs to turn off completely before disconnecting network patch cables or removing the modular card expansion plates.
Step-by-Step Standard Operation
- Grounding Verification: Confirm the chassis ground resistance meets local industrial regulations before energizing the device.
- Cable Deployment: Connect Ethernet copper lines (RJ45) or fiber transceivers (SFP) into the designated communication ports.
- Console IP Setup: Use a serial console cable or a web browser to access the default IP address and configure the admin password.
- Redundancy Ring Activation: Enable Turbo Ring or IGMP Snooping settings in the firmware interface for fast network recovery loops.
- Traffic Monitoring: Check the per-port LED indicators (Amber/Green blinking) to verify stable packet transmission and speed negotiation.
Frequently Asked Questions
Q: What does a solid red “Fault” LED mean? A: This indicates a configured system event has triggered, such as a power supply failure, a broken network loop, or a port disconnection. Check the web console log to identify the specific alarm.
Q: Can this high-voltage (HV) model accept standard DC battery power? A: Yes, the universal high-voltage power supply is designed to accept both AC (85–264 VAC) and DC (88–300 VDC) input voltages safely.
Q: How do I perform a hard factory reset? A: Locate the pinhole reset button on the front panel. Use a pointed tool to press and hold the button for more than 5 seconds while the device is powered on to restore factory default settings.

