
Kramer TP-573 HDMI RS-232 IR Twisted Pair Transmitter
Extend Your HDMI Signal with Uncompromised QualityThe Kramer TP-573 is an HDMI, RS-232, and IR over Twisted Pair Transmitter, designed to extend HDMI signals over long distances using standard twisted pair cables. Perfect for installations requiring reliable, high-quality video and control signal...
*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Extend Your HDMI Signal with Uncompromised Quality
The Kramer TP-573 is an HDMI, RS-232, and IR over Twisted Pair Transmitter, designed to extend HDMI signals over long distances using standard twisted pair cables. Perfect for installations requiring reliable, high-quality video and control signal transmission across extended ranges.
- Signal Transmission: HDMI (up to 1.4), Bi-Directional RS-232 & IR
- Cable Type: Twisted Pair (e.g., CAT-5)
- Maximum Range (with Shielded BC-DGKat723 cable): Up to 330' at 1080i, Up to 295' at 1080p
- Supported Signals: HDMI video and multi-channel audio
- Bi-Directional Control: RS-232 and Infrared signals
Key Features
Device Type: Transmitter: This product is a transmitter that sends signals over twisted pair cables
Form Factor: External: This device is designed to be used externally, not integrated into another device
Max Transfer Distance: 328.08 feet: The signal can be transmitted up to 328.08 feet without loss of quality
Inputs: This device has one HDMI connector, one bidirectional IR port on a 3.5mm mini jack, and one bidirectional RS-232 port on a 9-pin D-sub connector
Outputs: This device has one CAT 5 OUT on an RJ-45 connector, allowing for transmission over twisted pair cables
Dimensions: The device measures 4.76 inches in width, 2.83 inches in depth, and 0.95 inches in height
Specifications
Pros & Cons
👍 Pros
- Transmits HDMI, RS-232, and IR signals over a single CAT 5 cable, simplifying cable runs.
- Achieves a maximum transfer distance of 328.08 feet without loss of signal quality.
- Features an external form factor, allowing for flexible placement and integration into existing systems.
- Includes one HDMI input and one CAT 5 output, facilitating point-to-point extension.
- Incorporates bidirectional IR and RS-232 ports for comprehensive control signal management.
👎 Cons
- Requires a compatible receiver unit (not included) to complete the twisted pair extension system.
- Limited to a single HDMI input, which may not be sufficient for systems with multiple HDMI sources.
- The maximum transfer distance of 328.08 feet might be insufficient for extremely large installations.
- The external form factor, while flexible, requires a dedicated space for mounting or placement.
- Utilizes a 9-pin D-sub connector for RS-232, which might require adapters for devices with other serial interfaces.