{"id":137,"date":"2026-02-08T15:59:35","date_gmt":"2026-02-08T15:59:35","guid":{"rendered":"https:\/\/www.myuremote.com\/website\/?page_id=137"},"modified":"2026-02-08T16:00:03","modified_gmt":"2026-02-08T16:00:03","slug":"global-cache","status":"publish","type":"page","link":"https:\/\/www.myuremote.com\/website\/docs\/integrations\/global-cache\/","title":{"rendered":"Global Cache"},"content":{"rendered":"\n<section style=\"max-width:1000px;margin:0 auto;padding:26px 18px;line-height:1.6;\">\n\n  <header style=\"margin-bottom:18px;\">\n    <h1 style=\"font-size:clamp(26px,4vw,38px);line-height:1.15;margin:0;\">\n      MyURemote \u2194 Global Cach\u00e9 (Global Cache)\n    <\/h1>\n    <p style=\"margin:10px 0 0 0;max-width:930px;\">\n      Official guide for using <strong>Global Cach\u00e9 controllers<\/strong> with <strong>MyURemote<\/strong>.\n      Global Cach\u00e9 devices are the <strong>fully supported<\/strong> controller platform in MyURemote to add\n      <strong>Infrared (IR)<\/strong> and <strong>Serial (RS-232)<\/strong> control.\n    <\/p>\n    <p style=\"margin:10px 0 0 0;opacity:.8;max-width:930px;\">\n      You typically need a Global Cach\u00e9 controller when your equipment must be controlled via <strong>infrared<\/strong>\n      or <strong>serial<\/strong> (or when IP control is not available \/ not reliable).\n      This page focuses on choosing the right model, network setup, and practical installation tips.\n      A dedicated page about <strong>learning IR codes and adding them to the MyURemote database<\/strong> will be added later.\n    <\/p>\n  <\/header>\n\n  <!-- Supported models -->\n  <section style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;background:rgba(0,0,0,.02);\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">Supported Global Cach\u00e9 models in MyURemote<\/h2>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li><strong>Global Cach\u00e9 \u2013 GC-100-6 \/ iTach Flex<\/strong><\/li>\n      <li><strong>Global Cach\u00e9 \u2013 iTach (IP2SL \/ IP2IR \/ WF2IR \/ WF2SL)<\/strong><\/li>\n      <li><strong>Global Cach\u00e9 \u2013 GC-100-12<\/strong><\/li>\n    <\/ul>\n    <p style=\"margin:10px 0 0 0;opacity:.75;\">\n      Tip: Wired Ethernet models are generally recommended for professional AV reliability. Wi-Fi models are supported,\n      but require stable coverage and non-isolated LAN access.\n    <\/p>\n  <\/section>\n\n  <!-- TOC -->\n  <section style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">Contents<\/h2>\n    <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;\">\n      <a href=\"#concept\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>1.<\/strong> Concept\n      <\/a>\n      <a href=\"#why\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>2.<\/strong> Why MyURemote + Global Cach\u00e9\n      <\/a>\n      <a href=\"#families\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>3.<\/strong> Product families &#038; key differences\n      <\/a>\n      <a href=\"#models\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>4.<\/strong> MyURemote model groups (your categories)\n      <\/a>\n      <a href=\"#choose\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>5.<\/strong> Choosing the right controller\n      <\/a>\n      <a href=\"#network\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>6.<\/strong> Network setup &#038; web interface\n      <\/a>\n      <a href=\"#ports\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>7.<\/strong> Ports &#038; communication (4998 \/ 4999+)\n      <\/a>\n      <a href=\"#ir\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>8.<\/strong> Infrared control essentials\n      <\/a>\n      <a href=\"#serial\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>9.<\/strong> Serial control essentials (RS-232)\n      <\/a>\n      <a href=\"#install\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>10.<\/strong> Installation patterns (real-world)\n      <\/a>\n      <a href=\"#troubleshooting\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>11.<\/strong> Troubleshooting\n      <\/a>\n      <a href=\"#pitfalls\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>12.<\/strong> Known pitfalls\n      <\/a>\n      <a href=\"#faq\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>13.<\/strong> FAQ\n      <\/a>\n      <a href=\"#changelog\" style=\"text-decoration:none;border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:10px 12px;display:block;\">\n        <strong>14.<\/strong> Changelog\n      <\/a>\n    <\/div>\n  <\/section>\n\n  <hr style=\"opacity:.25;margin:18px 0;\" \/>\n\n  <!-- 1 -->\n  <section id=\"concept\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">1. Concept<\/h2>\n    <p style=\"margin:0 0 10px 0;\">\n      <strong>Global Cach\u00e9<\/strong> devices act as a bridge between your network (<strong>IP<\/strong>) and\n      physical control interfaces like <strong>IR<\/strong> and <strong>RS-232 serial<\/strong>.\n      MyURemote sends commands over your LAN to the Global Cach\u00e9 controller, and the controller emits IR or serial data to your equipment.\n    <\/p>\n\n    <ul style=\"margin:0 0 0 18px;\">\n      <li><strong>IR<\/strong> is used for TVs, set-top boxes, media players, Blu-ray, legacy AV equipment.<\/li>\n      <li><strong>RS-232<\/strong> is used for projectors, professional AV gear, matrix switchers, screens\/lifts, amplifiers.<\/li>\n      <li>Controllers are placed close to the equipment (behind TV, in rack, or in an equipment room).<\/li>\n    <\/ul>\n\n    <p style=\"margin:10px 0 0 0;\">\n      <strong>Design goal:<\/strong> MyURemote stays generic and fast for remote control UI\/macros, while Global Cach\u00e9 provides stable hardware I\/O.\n    <\/p>\n  <\/section>\n\n  <!-- 2 -->\n  <section id=\"why\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">2. Why MyURemote + Global Cach\u00e9<\/h2>\n    <p style=\"margin:0 0 10px 0;\">\n      Global Cach\u00e9 controllers are the <strong>reference platform<\/strong> for adding IR and serial control in many AV installs.\n      They are stable, predictable, and work well in both small home setups and larger rack-based installations.\n      MyURemote supports them as <strong>fully supported controllers<\/strong>.\n    <\/p>\n\n    <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;\">\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>MyURemote does best<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li>Fast remote UI (zones, inputs, navigation)<\/li>\n          <li>Macros across protocols (IP + IR + serial)<\/li>\n          <li>Consistent remote behavior for end users<\/li>\n        <\/ul>\n      <\/div>\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>Global Cach\u00e9 does best<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li>IR and RS-232 hardware output<\/li>\n          <li>Network-based control (LAN accessible)<\/li>\n          <li>Rack and room endpoints (different form factors)<\/li>\n        <\/ul>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- 3 -->\n  <section id=\"families\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">3. Product families &#038; key differences<\/h2>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">3.1 Ethernet vs Wi-Fi models<\/h3>\n    <p style=\"margin:0 0 10px 0;\">\n      Many Global Cach\u00e9 devices exist in both wired and wireless variants. Both are supported, but they behave differently in practice:\n    <\/p>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li><strong>Ethernet (recommended):<\/strong> stable latency, fewer dropouts, best for critical AV control.<\/li>\n      <li><strong>Wi-Fi:<\/strong> flexible placement, but depends on coverage and can be affected by interference or network isolation.<\/li>\n    <\/ul>\n    <p style=\"margin:10px 0 0 0;opacity:.75;\">\n      If you use Wi-Fi: use strong coverage, avoid guest networks, and ensure devices can reach each other locally.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">3.2 GC-100 series (rack \/ multi-port controllers)<\/h3>\n    <p style=\"margin:0 0 10px 0;\">\n      GC-100 controllers are made for installations where multiple devices are centralized (typical AV rack).\n      They provide multiple outputs (IR + serial) from one IP address.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">3.3 iTach units (compact endpoints)<\/h3>\n    <p style=\"margin:0 0 10px 0;\">\n      iTach units are small and ideal when you want a compact controller near the equipment (behind TV, projector, cabinet).\n      Classic examples are <strong>IP2IR<\/strong> and <strong>IP2SL<\/strong> and their Wi-Fi counterparts.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">3.4 iTach Flex (modular)<\/h3>\n    <p style=\"margin:0 0 10px 0;\">\n      iTach Flex is modular: the base unit becomes IR or serial depending on the cable\/module you connect.\n      It is an excellent choice when you want a compact controller, but keep the option to change the output type later.\n    <\/p>\n  <\/section>\n\n  <!-- 4 -->\n  <section id=\"models\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">4. MyURemote model groups (your categories)<\/h2>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">4.1 Global Cach\u00e9 \u2013 GC-100-6 \/ iTach Flex<\/h3>\n    <p style=\"margin:0 0 10px 0;\">\n      This category covers two common \u201ccompact but serious\u201d installation approaches:\n      a smaller <strong>GC-100-6<\/strong> rack-style controller, and the modular <strong>iTach Flex<\/strong>.\n    <\/p>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li><strong>GC-100-6<\/strong>: best when you need multiple outputs from one controller, but don\u2019t need the larger 12\/18 port units.<\/li>\n      <li><strong>iTach Flex<\/strong>: best as an endpoint near the device, with modular IR\/Serial capability.<\/li>\n    <\/ul>\n    <p style=\"margin:10px 0 0 0;opacity:.75;\">\n      Typical use: small rack, or \u201cone controller per room\u201d installs where you want future-proof flexibility.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">4.2 Global Cach\u00e9 \u2013 iTach (IP2SL \/ IP2IR \/ WF2IR \/ WF2SL)<\/h3>\n    <p style=\"margin:0 0 10px 0;\">\n      This is the classic family of compact controllers. They are ideal if you need IR or serial control for a few devices.\n    <\/p>\n    <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;\">\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>IP2IR (Ethernet)<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li>Add IR control over IP<\/li>\n          <li>Multiple IR ports (emitters)<\/li>\n          <li>Recommended when you can wire Ethernet<\/li>\n        <\/ul>\n      <\/div>\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>IP2SL (Ethernet)<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li>Add RS-232 serial over IP<\/li>\n          <li>Great for projectors, screens, pro AV<\/li>\n          <li>Most reliable for serial control<\/li>\n        <\/ul>\n      <\/div>\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>WF2IR (Wi-Fi)<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li>IR over Wi-Fi<\/li>\n          <li>Use when Ethernet wiring is not possible<\/li>\n          <li>Requires stable Wi-Fi and non-isolated LAN<\/li>\n        <\/ul>\n      <\/div>\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>WF2SL (Wi-Fi)<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li>Serial over Wi-Fi<\/li>\n          <li>Convenient placement, but more sensitive to Wi-Fi issues<\/li>\n          <li>Prefer Ethernet when possible for pro installs<\/li>\n        <\/ul>\n      <\/div>\n    <\/div>\n\n    <p style=\"margin:10px 0 0 0;opacity:.75;\">\n      Note: These iTach devices are also often used for workflows where you capture IR commands and map them into MyURemote\u2019s database.\n      This will be documented on a dedicated page later (<strong>link will be added later<\/strong>).\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">4.3 Global Cach\u00e9 \u2013 GC-100-12<\/h3>\n    <p style=\"margin:0 0 10px 0;\">\n      The <strong>GC-100-12<\/strong> is a popular rack controller when you have multiple devices to control from a centralized location.\n      It is a \u201cmulti-output hub\u201d for IR and serial.\n    <\/p>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li>Ideal for equipment closets \/ racks<\/li>\n      <li>Multiple IR outputs and serial outputs from one IP address<\/li>\n      <li>Clean wiring and easy maintenance for installers<\/li>\n    <\/ul>\n  <\/section>\n\n  <!-- 5 -->\n  <section id=\"choose\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">5. Choosing the right controller<\/h2>\n\n    <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;\">\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>I mainly need IR (1\u20133 devices)<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li><strong>IP2IR<\/strong> (recommended)<\/li>\n          <li><strong>WF2IR<\/strong> (when no Ethernet)<\/li>\n          <li><strong>iTach Flex + IR module<\/strong> (future-proof)<\/li>\n        <\/ul>\n      <\/div>\n\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>I need RS-232 serial control<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li><strong>IP2SL<\/strong> (recommended)<\/li>\n          <li><strong>WF2SL<\/strong> (when no Ethernet)<\/li>\n          <li><strong>iTach Flex + serial module<\/strong><\/li>\n        <\/ul>\n      <\/div>\n\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>I have many devices in a rack<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li><strong>GC-100-12<\/strong> (common choice)<\/li>\n          <li><strong>GC-100-6<\/strong> (smaller rack choice)<\/li>\n        <\/ul>\n        <p style=\"margin:10px 0 0 0;opacity:.75;\">\n          Best when devices are centralized and you want one controller hub.\n        <\/p>\n      <\/div>\n\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>I want maximum flexibility<\/strong>\n        <ul style=\"margin:8px 0 0 18px;\">\n          <li><strong>iTach Flex<\/strong> (IR now, serial later)<\/li>\n          <li>Great for evolving installations<\/li>\n        <\/ul>\n      <\/div>\n    <\/div>\n\n    <p style=\"margin:10px 0 0 0;opacity:.75;\">\n      Practical rule: if your installation is \u201cfixed and critical\u201d, choose Ethernet. If placement constraints are strong, Wi-Fi is a valid option.\n    <\/p>\n  <\/section>\n\n  <!-- 6 -->\n  <section id=\"network\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">6. Network setup &#038; web interface<\/h2>\n\n    <p style=\"margin:0 0 10px 0;\">\n      Global Cach\u00e9 controllers are configured using the built-in <strong>web interface<\/strong>.\n      You open it by navigating to the device\u2019s <strong>IP address<\/strong> on your local network.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">6.1 Strongly recommended<\/h3>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li>Use a <strong>fixed IP<\/strong> (DHCP reservation recommended).<\/li>\n      <li>Keep MyURemote and Global Cach\u00e9 on the <strong>same LAN\/VLAN<\/strong> when possible.<\/li>\n      <li>Document which IR\/serial port goes to which device (label IR1\/IR2\/IR3 etc.).<\/li>\n      <li>For Wi-Fi models: ensure stable coverage and disable client isolation \/ guest mode.<\/li>\n    <\/ul>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">6.2 What you configure<\/h3>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li>IP addressing (DHCP\/static)<\/li>\n      <li>Wi-Fi credentials (Wi-Fi models)<\/li>\n      <li>Serial parameters (baud\/parity\/stop bits\/flow control) on serial models<\/li>\n    <\/ul>\n\n    <p style=\"margin:10px 0 0 0;opacity:.75;\">\n      After setup, most work happens in MyURemote: assigning commands, building UI layouts, and tuning macros.\n    <\/p>\n  <\/section>\n\n  <!-- 7 -->\n  <section id=\"ports\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">7. Ports &#038; communication (TCP 4998 \/ 4999+)<\/h2>\n\n    <p style=\"margin:0 0 10px 0;\">\n      MyURemote communicates with Global Cach\u00e9 controllers using <strong>TCP<\/strong>.\n      In most installations you only need the <strong>IP address<\/strong> and the correct <strong>TCP port<\/strong>.\n    <\/p>\n\n    <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;margin:10px 0;\">\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>TCP 4998<\/strong>\n        <p style=\"margin:8px 0 0 0;\">\n          Common control\/data port used for IR output (and some other functions depending on model).\n        <\/p>\n      <\/div>\n      <div style=\"border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;\">\n        <strong>TCP 4999, 5000, &#8230;<\/strong>\n        <p style=\"margin:8px 0 0 0;\">\n          Common convention for serial connectors on multi-port devices (GC-100).\n          Each serial connector can map to a unique TCP port.\n        <\/p>\n      <\/div>\n    <\/div>\n\n    <p style=\"margin:0;opacity:.75;\">\n      If you have connectivity issues, first verify that TCP ports are reachable and not blocked by VLAN\/firewall rules.\n    <\/p>\n  <\/section>\n\n  <!-- 8 -->\n  <section id=\"ir\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">8. Infrared control essentials<\/h2>\n\n    <p style=\"margin:0 0 10px 0;\">\n      Infrared control is still extremely common in AV. Global Cach\u00e9 solves the line-of-sight limitation by using\n      <strong>emitters<\/strong> placed directly on device IR sensors (recommended), or by using an <strong>IR blaster<\/strong>.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">8.1 Emitter vs blaster<\/h3>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li><strong>Emitter:<\/strong> stick-on LED placed on the IR window \u2192 most reliable and deterministic.<\/li>\n      <li><strong>Blaster:<\/strong> emits into the room\/cabinet \u2192 can be convenient but may cause cross-control.<\/li>\n    <\/ul>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">8.2 Multiple IR ports (important in practice)<\/h3>\n    <p style=\"margin:0 0 10px 0;\">\n      Multiple IR ports allow you to dedicate one emitter per device. This is cleaner, more reliable, and makes troubleshooting easier.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">8.3 Adding IR commands to the MyURemote database (separate page)<\/h3>\n    <p style=\"margin:0 0 10px 0;\">\n      iTach IR controllers (like <strong>IP2IR<\/strong> and <strong>WF2IR<\/strong>) can be used in workflows where you capture IR codes\n      and store them as structured commands in the MyURemote database. This is ideal for devices that do not offer IP control.\n    <\/p>\n    <p style=\"margin:0;opacity:.75;\">\n      A dedicated page will document the full workflow (learning\/capturing IR, storing codes, mapping to MyURemote buttons\/macros).\n      <strong>Link will be added later.<\/strong>\n    <\/p>\n  <\/section>\n\n  <!-- 9 -->\n  <section id=\"serial\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">9. Serial control essentials (RS-232)<\/h2>\n\n    <p style=\"margin:0 0 10px 0;\">\n      Serial control is common in professional AV because it is deterministic and often provides better control than IR.\n      Global Cach\u00e9 serial models (IP2SL\/WF2SL\/Flex-serial, and GC-100 serial ports) allow MyURemote to send serial bytes via TCP\/IP.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">9.1 Serial settings must match<\/h3>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li>Baud rate<\/li>\n      <li>Parity<\/li>\n      <li>Stop bits<\/li>\n      <li>Flow control (if required)<\/li>\n      <li>Command termination (often CR\/LF)<\/li>\n    <\/ul>\n\n    <p style=\"margin:10px 0 0 0;opacity:.75;\">\n      Most \u201cserial not working\u201d problems come down to mismatched settings or cable type (straight vs null modem).\n    <\/p>\n  <\/section>\n\n  <!-- 10 -->\n  <section id=\"install\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">10. Installation patterns (real-world)<\/h2>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">10.1 Rack-based hub (GC-100-12)<\/h3>\n    <ul style=\"margin:0 0 10px 18px;\">\n      <li>All equipment is centralized in a rack\/closet.<\/li>\n      <li>Use one GC-100-12 as IR + serial hub.<\/li>\n      <li>MyURemote macros orchestrate power, inputs, sequences and delays.<\/li>\n    <\/ul>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">10.2 Endpoint behind the TV (IP2IR \/ Flex-IR)<\/h3>\n    <ul style=\"margin:0 0 10px 18px;\">\n      <li>Place the controller behind the TV or inside the cabinet.<\/li>\n      <li>Use short emitter runs for maximum reliability.<\/li>\n      <li>Use Ethernet if possible; Wi-Fi if placement requires it.<\/li>\n    <\/ul>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">10.3 Projector via serial, sources via IR (hybrid)<\/h3>\n    <ul style=\"margin:0 0 10px 18px;\">\n      <li>Projector controlled by RS-232 (IP2SL \/ Flex-serial \/ GC-100 serial).<\/li>\n      <li>Set-top box \/ Blu-ray controlled by IR (IP2IR \/ WF2IR).<\/li>\n      <li>MyURemote \u201cWatch TV\u201d \/ \u201cMovie\u201d macros make it one-button simple.<\/li>\n    <\/ul>\n  <\/section>\n\n  <!-- 11 -->\n  <section id=\"troubleshooting\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">11. Troubleshooting<\/h2>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">Cannot connect (timeout \/ offline)<\/h3>\n    <ul style=\"margin:0 0 10px 18px;\">\n      <li>Verify IP address is correct and reachable from the MyURemote controller.<\/li>\n      <li>Check router\/VLAN rules; ensure TCP ports are not blocked.<\/li>\n      <li>Use DHCP reservation (fixed IP).<\/li>\n      <li>For Wi-Fi models: verify signal strength and avoid guest \/ isolated Wi-Fi networks.<\/li>\n    <\/ul>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">IR command sent, but device does nothing<\/h3>\n    <ul style=\"margin:0 0 10px 18px;\">\n      <li>Check emitter placement (correct IR window).<\/li>\n      <li>Check you target the correct IR port.<\/li>\n      <li>Try adding a small delay \/ repeat in the macro if the device is slow.<\/li>\n      <li>Avoid blaster cross-control (two devices reacting to the same command).<\/li>\n    <\/ul>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">Serial command sent, but device does nothing<\/h3>\n    <ul style=\"margin:0 0 10px 18px;\">\n      <li>Verify baud\/parity\/stop bits\/flow control.<\/li>\n      <li>Verify termination (CR\/LF) if required.<\/li>\n      <li>Check cable type (straight vs null modem) and pinout.<\/li>\n      <li>On GC-100: verify you use the correct TCP port for the correct serial connector.<\/li>\n    <\/ul>\n  <\/section>\n\n  <!-- 12 -->\n  <section id=\"pitfalls\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">12. Known pitfalls<\/h2>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li>Changing IP address after installation \u2192 breaks the setup (use DHCP reservation).<\/li>\n      <li>Wi-Fi client isolation \/ guest networks \u2192 controller is \u201conline\u201d but not reachable from MyURemote.<\/li>\n      <li>Using a blaster and controlling multiple devices unintentionally.<\/li>\n      <li>Wrong TCP port on GC-100 (4998 vs 4999+ depending on function).<\/li>\n      <li>Serial cable mismatch (straight vs null-modem) or wrong termination.<\/li>\n    <\/ul>\n  <\/section>\n\n  <!-- 13 -->\n  <section id=\"faq\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">13. FAQ<\/h2>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">Do I always need Global Cach\u00e9?<\/h3>\n    <p style=\"margin:0;opacity:.75;\">\n      No. You need it when your devices require <strong>IR<\/strong> or <strong>RS-232<\/strong>.\n      For native IP devices, MyURemote can use IP control directly.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">Which model is the safest choice?<\/h3>\n    <p style=\"margin:0;opacity:.75;\">\n      If you can use Ethernet: <strong>IP2IR<\/strong> for IR and <strong>IP2SL<\/strong> for serial are very solid choices.\n      For racks: <strong>GC-100-12<\/strong>. For flexibility: <strong>iTach Flex<\/strong>.\n    <\/p>\n\n    <h3 style=\"margin:12px 0 8px 0;font-size:15px;\">Will there be a page about learning IR commands and adding them to the database?<\/h3>\n    <p style=\"margin:0;opacity:.75;\">\n      Yes. That will be documented separately. This page focuses on hardware selection and setup.\n    <\/p>\n  <\/section>\n\n  <!-- 14 -->\n  <section id=\"changelog\" style=\"border:1px solid rgba(0,0,0,.15);border-radius:14px;padding:14px;margin:12px 0;\">\n    <h2 style=\"margin:0 0 10px 0;font-size:18px;\">14. Changelog<\/h2>\n    <ul style=\"margin:0 0 0 18px;\">\n      <li><strong>v2<\/strong> \u2013 Added MyURemote model groups (GC-100-6 \/ iTach Flex, iTach IP2*\/WF2*, GC-100-12) + expanded selection guidance.<\/li>\n      <li><strong>v1<\/strong> \u2013 Initial Global Cach\u00e9 guide.<\/li>\n    <\/ul>\n  <\/section>\n\n<\/section>\n\n","protected":false},"excerpt":{"rendered":"<p>MyURemote \u2194 Global Cach\u00e9 (Global Cache) Official guide for using Global Cach\u00e9 controllers with MyURemote. Global Cach\u00e9 devices are the fully supported controller platform in MyURemote to add Infrared (IR) and Serial (RS-232) control. You typically need a Global Cach\u00e9 controller when your equipment must be controlled via infrared or serial (or when IP control [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":28,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-137","page","type-page","status-publish","hentry"],"blocksy_meta":{"has_hero_section":"disabled","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/www.myuremote.com\/website\/wp-json\/wp\/v2\/pages\/137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.myuremote.com\/website\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.myuremote.com\/website\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.myuremote.com\/website\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.myuremote.com\/website\/wp-json\/wp\/v2\/comments?post=137"}],"version-history":[{"count":1,"href":"https:\/\/www.myuremote.com\/website\/wp-json\/wp\/v2\/pages\/137\/revisions"}],"predecessor-version":[{"id":138,"href":"https:\/\/www.myuremote.com\/website\/wp-json\/wp\/v2\/pages\/137\/revisions\/138"}],"up":[{"embeddable":true,"href":"https:\/\/www.myuremote.com\/website\/wp-json\/wp\/v2\/pages\/28"}],"wp:attachment":[{"href":"https:\/\/www.myuremote.com\/website\/wp-json\/wp\/v2\/media?parent=137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}