### Overview: DBCUSB2AB1.5M The **DBCUSB2AB1.5M** is a standardized industrial-grade USB 2.0 cable commonly used in professional audio, printing, and instrumentation environments. The part number typically breaks down as: **DBC** (Brand/Series), **USB2** (Standard), **AB** (Connector Type: A-to-B), and **1.5M** (Length in meters). --- ### Technical Specifications | Feature | Specification | | :--- | :--- | | **USB Version** | USB 2.0 (High-Speed) | | **Data Transfer Rate** | Up to 480 Mbps | | **Connector A** | USB Type-A (Male) | | **Connector B** | USB Type-B (Male) | | **Length** | 1.5 Meters (~4.9 feet) | | **Jacket Material** | PVC (Polyvinyl Chloride) | | **Shielding** | Foil + Braided (Double Shielding) | --- ### Key Electronic Components & Construction #### 1. Internal Wiring (Conductors) The cable consists of four main copper conductors (usually 24/28 AWG): * **VCC (Red):** +5V Power supply. * **GND (Black):** Ground. * **D+ (Green):** Differential Data Plus. * **D- (White):** Differential Data Minus. #### 2. Shielding and Interference Protection To maintain signal integrity over 1.5 meters, these cables utilize: * **Allar/Mylar Foil:** Wraps around the twisted pairs to block high-frequency electromagnetic interference (EMI). * **Tinned Copper Braid:** Provides structural strength and protects against low-frequency interference. * **Twisted Pair Architecture:** The D+ and D- lines are twisted together to cancel out electromagnetic noise (crosstalk). #### 3. Connectors & Contacts * **Nickel or Gold Plating:** The contact pins are usually gold-plated to prevent oxidation and ensure low contact resistance over multiple plug/unplug cycles. * **Overmold:** A reinforced plastic housing at the connection point to provide strain relief, preventing the internal wires from snapping under tension. --- ### Common Applications * **Office Equipment:** Connecting PCs to printers and scanners. * **Audio Engineering:** Connecting MIDI controllers, Audio Interfaces (DACs), and digital mixers. * **Industrial Control:** Interfacing with PLCs (Programmable Logic Controllers) or CNC machinery that utilizes the Type-B square port. ---