## Overview of HDMI-MM-RASU-1M The **HDMI-MM-RASU-1M** is a specific model of HDMI cable designed for high-definition multimedia interfacing. The nomenclature typically breaks down as follows: * **HDMI:** Interface type. * **MM:** Male to Male connectors. * **RASU:** Right-Angle / Super Ultra-thin (or specific manufacturer series code). * **1M:** 1-meter length. --- ### 1. Key Electronic Specifications | Feature | Specification | | :--- | :--- | | **Connector Type** | HDMI Type A (Standard) Male to Male | | **HDMI Version** | Typically 2.0 (High Speed with Ethernet) | | **Max Resolution** | 4K @ 60Hz (3840 x 2160) | | **Bandwidth** | 18Gbps | | **Audio Channels** | Up to 32 uncompressed digital audio channels | | **AWG (Wire Gauge)** | 30 AWG to 34 AWG (depending on thickness) | --- ### 2. Physical & Electronic Components #### A. Internal Wiring Structure Inside the cable, there are 19 individual pins/wires, categorized into: 1. **TMDS (Transition Minimized Differential Signaling) Channels:** These carry the high-speed video and audio data. They are organized in twisted pairs with shielding to reduce EMI (Electromagnetic Interference). 2. **CEC (Consumer Electronics Control):** Allows the user to control multiple devices with one remote. 3. **HEAC (HDMI Ethernet & Audio Return Channel):** Combines network data and upstream audio. 4. **DDC (Display Data Channel):** Used for the handshake between devices (EDID information). #### B. Connector Construction * **Gold-Plated Contacts:** To prevent oxidation and ensure maximum conductivity for low-voltage signals. * **Right-Angle (RA) Housing:** The electronic housing is angled (usually 90 degrees) to reduce strain on the port and the internal solder joints when space is limited. * **Shielding:** Triple-layer shielding (Al-Mylar foil + Braid) to prevent signal degradation over the 1-meter distance. --- ### 3. Electronic Protection & Standards This cable is engineered to meet specific electronic safety and performance standards: * **HDCP 2.2 Compliance:** Ensures that encrypted content (like Netflix 4K) can be transmitted electronically without being blocked. * **EMI/RFI Suppression:** The physical arrangement of the electronic cores is designed to prevent the cable from acting as an antenna for radio frequency interference. * **Passive Electronics:** As a 1M cable, it is generally **passive**, meaning it does not require an active chipset to boost the signal (unlike cables over 10M). ---