1. Introduction
The Kramer FC-28 is a high-performance, PoE-powered control gateway designed for seamless integration into various control systems. It provides 10 versatile ports for Serial, IR, GPI/O, and Relay control, enabling efficient management of multiple devices. This manual provides detailed instructions for the installation, operation, and maintenance of your FC-28 unit.
2. Safety Information
Please read and follow all safety instructions carefully to prevent damage to the device or injury to yourself. Keep this manual for future reference.
- Ensure the device is powered only by Power over Ethernet (PoE) from a compatible source.
- Do not expose the unit to moisture, rain, or extreme temperatures.
- Do not open the casing; refer all servicing to qualified personnel.
- Place the unit on a stable, level surface or mount it securely.
- Avoid blocking ventilation openings to prevent overheating.
3. Package Contents
Verify that your package contains the following items:
- Kramer FC-28 10-Port Control Gateway unit
- This User Manual
- Mounting bracket (if included with specific models)
4. Product Overview
The FC-28 features a compact design with clearly labeled ports for easy connectivity. Below are images illustrating the device's physical layout and typical connection scenarios.

Figure 1: Front and Rear Panel of the Kramer FC-28. The front panel typically includes status indicators, while the rear panel houses the various control ports and the Ethernet connection for PoE.

Figure 2: Example connection diagram for the Kramer FC-28. This illustrates how the gateway connects to an Ethernet network (router), RS-232 controlled devices (projector), IR emitters/blasters (Blu-ray players), GPI/O sensors, and relay-controlled devices (screen), allowing control from iOS/Android devices.
5. Setup
5.1 Physical Installation
The FC-28 is designed for flexible placement. Ensure the chosen location allows for adequate ventilation and easy access to ports.
- Place the unit on a flat, stable surface.
- If rack-mounting or surface-mounting, use the appropriate Kramer mounting accessories (sold separately or included with specific kits) and follow their installation instructions.
5.2 Power Connection (PoE)
The FC-28 is powered via Power over Ethernet (PoE).
- Connect an Ethernet cable from a PoE-enabled network switch or injector to the Ethernet port on the FC-28.
- The unit will power on automatically once a valid PoE connection is established. Verify the power indicator LED on the unit illuminates.
5.3 Network Connection
The Ethernet port also provides network connectivity for control and configuration.
- Ensure the Ethernet cable from the PoE source is connected to your network.
- The FC-28 will obtain an IP address via DHCP by default. Refer to the Kramer control software or network tools for device discovery and static IP configuration if required.
5.4 Connecting Control Devices
Connect your target devices to the appropriate ports on the FC-28.
- Serial (RS-232) Ports: Connect RS-232 controlled devices (e.g., projectors, displays) using standard serial cables.
- IR Ports: Connect Kramer IR emitters or blasters to control IR-enabled devices (e.g., Blu-ray players, media players).
- GPI/O Ports: Connect sensors, buttons, or other General Purpose Input/Output devices.
- Relay Ports: Connect devices that require simple contact closure control (e.g., projector screens, blinds).
6. Operating Instructions
The Kramer FC-28 is primarily controlled and configured via a network connection using Kramer's control software or API commands.
6.1 Initial Configuration
Upon initial power-up and network connection, the FC-28 is ready for configuration.
- Use Kramer's network discovery tools or a web browser (if a web interface is available) to locate the FC-28 on your network.
- Access the device's configuration interface to assign static IP addresses, configure port settings (baud rates for serial, IR codes, GPI/O functions, relay states), and integrate with your control system.
6.2 Control Integration
Once configured, the FC-28 acts as a bridge between your control system and the connected devices.
- Integrate the FC-28 into your preferred control platform (e.g., Kramer Control, third-party control systems) using its API or drivers.
- Send commands through the network to the FC-28, which then translates and transmits them via the appropriate Serial, IR, GPI/O, or Relay port to control the end devices.
7. Maintenance
Regular maintenance ensures optimal performance and longevity of your FC-28.
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid or aerosol cleaners.
- Firmware Updates: Periodically check the Kramer website for firmware updates. Follow the provided instructions carefully for any updates to ensure compatibility and access to new features.
- Ventilation: Ensure that the ventilation openings are not obstructed to prevent overheating.
8. Troubleshooting
If you encounter issues with your Kramer FC-28, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | No PoE connection or faulty PoE source. | Verify the Ethernet cable is securely connected to a PoE-enabled port. Check the PoE switch/injector for proper operation. |
| Cannot discover the unit on the network. | Network connectivity issue, incorrect IP settings, or firewall. | Ensure the Ethernet cable is connected. Check network settings (DHCP server, subnet). Temporarily disable firewalls for testing. Use Kramer's discovery tools. |
| Connected device is not responding to commands. | Incorrect port configuration, faulty cable, or device issue. | Verify port settings (baud rate, IR codes) in the FC-28 configuration. Check the cable connection to the controlled device. Ensure the controlled device is powered on and functioning correctly. |
| Intermittent control. | Network interference or loose connections. | Check for network congestion or interference. Ensure all cables are securely connected. |
If the problem persists, contact Kramer technical support for further assistance.
9. Specifications
The following specifications are for the Kramer FC-28 10-Port Control Gateway:
- Model Number: FC-28
- Brand: Kramer
- Connectivity: 10-Port (Serial, IR, GPI/O, Relay), Ethernet (PoE)
- Power: Power over Ethernet (PoE)
- Product Dimensions (L x W x H): 9 x 6 x 6 inches
- Weight: Approximately 2 Pounds
- International Protection Rating: IP54
- Connectivity Protocol: X-10 (Note: This may refer to a generic control capability; specific control protocols are typically managed via Kramer's software.)
- UPC: 642892774531
- Manufacturer: Kramer
- Date First Available: October 11, 2016
10. Warranty and Support
For warranty information and technical support, please refer to the official Kramer Electronics website or contact your authorized Kramer dealer. Keep your purchase receipt as proof of purchase.
Kramer Website: www.kramerav.com





