Kramer

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...

$171.09*$284.00Save 39%
Check availability

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

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

Device Type
Transmitter
Form Factor
External
Max Transfer Distance
328.08 feet
HDMI Inputs
1
IR Ports
1 (bidirectional, 3.5mm mini jack)
RS-232 Ports
1 (bidirectional, 9-pin D-sub)
CAT 5 Outputs
1 (RJ-45 connector)
Width
4.76 inches
Depth
2.83 inches
Height
0.95 inches

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.

Frequently Asked Questions

The Kramer TP-573 can transmit signals up to 328.08 feet (100 meters) without any loss of quality.
This transmitter is designed to send HDMI, RS-232, and IR (infrared) signals over a twisted pair CAT 5 cable.
The device has one HDMI connector, one bidirectional IR port on a 3.5mm mini jack, one bidirectional RS-232 port on a 9-pin D-sub connector for inputs, and one CAT 5 OUT on an RJ-45 connector for output.
The Kramer TP-573 measures 4.76 inches in width, 2.83 inches in depth, and 0.95 inches in height.
This product is specifically a transmitter, designed to send signals, and would require a compatible receiver for a complete extension system.