Keyence CA-CHX10U Repeater Unit for Vision Systems

The Keyence CA-CHX10U is a signal repeater unit designed for the CA series digital cameras and vision systems. This device allows extension of the camera cable beyond the standard length, achieving up to 10 meters between the camera and controller. It regenerates digital signals, ensuring data integrity and stable image transmission in large-scale inspection installations.

Functionality and Compatibility

The CA-CHX10U accepts input from Keyence CA series cameras (e.g., CA-HX, CA-HF, CA-HL) via a high-speed coaxial cable. It amplifies and retimes the video, trigger, and communication signals. The repeater is compatible with CV-5000, CV-7000, and other Keyence vision controllers using the CA bus protocol. It supports both monochrome and color cameras with resolutions up to 21 megapixels.

Electrical and Signal Specifications

The repeater requires 24V DC (±10%) power, consuming 200 mA max. It provides two camera connectors: one input (from camera) and one output (to controller). Maximum cable length from camera to repeater: 5 meters; from repeater to controller: 5 meters (total 10 meters). Use Keyence’s dedicated CA-CH series cables for best performance. The unit introduces a delay of less than 100 ns per channel.

Physical Characteristics

Dimensions: 120 x 60 x 30 mm (W x H x D). Weight 0.2 kg. The housing is aluminum with black anodized finish, providing heat dissipation and EMC shielding. The unit is designed for DIN rail mounting or panel mounting using screw holes. Connectors are locking BNC-type for positive engagement.

Environmental Data

Operating temperature: 0°C to 45°C; storage: -20°C to 70°C. Humidity: 35% to 85% non-condensing. The repeater is rated IP40 (protected against objects >1mm) and should be installed inside a control cabinet. Vibration resistance: 10 to 55 Hz, 1.5 mm amplitude.

LED Indication and Diagnostics

Three LEDs: POWER (green) indicates supply present; LINK (green) indicates camera communication established; ERROR (red) flashes if signal loss or cable fault detected. The repeater automatically passes diagnostic information from the camera to the vision controller.

Installation Guidelines

Mount the repeater as close as possible to the midpoint of the total cable run. Use copper-only cables (no fiber). Avoid bending cables tightly near connectors. The 24V DC supply must be able to power both the repeater and the camera (camera power passes through the repeater). Ensure proper grounding of the DIN rail or mounting plate.

Typical Applications

Used when the vision controller must be placed far from the camera due to space constraints, such as on high-speed production lines, cleanroom environments, or outdoor inspection stations. The CA-CHX10U allows remote placement without signal degradation.

Conclusion

The Keyence CA-CHX10U repeater unit effectively extends the reach of CA series cameras up to 10 meters. Its robust signal regeneration and simple installation make it an essential accessory for remote vision inspection setups.