{"product_id":"staison-4-port-expander-st-nctl210","title":"ST‑NCTL210 Network Serial Port Expander","description":"\u003c!-- =========================================================\n     ST-NCTL210 – Network Serial Port Expander\n     Shopify Product Description  |  Paste into HTML editor\n     ========================================================= --\u003e\n\u003cstyle\u003e\n  \/* ── Reset \u0026 base ─────────────────────────────────────────── *\/\n  .pd-wrap *{box-sizing:border-box;margin:0;padding:0}\n  .pd-wrap{\n    font-family:'Segoe UI',Tahoma,Geneva,sans-serif;\n    color:#1a1a1a;background:#fff;\n    max-width:900px;margin:0 auto;line-height:1.65;\n  }\n\n  \/* ── Hero ─────────────────────────────────────────────────── *\/\n  .pd-hero{\n    background:linear-gradient(135deg,#0d1b2a 0%,#1b3a5c 60%,#1565c0 100%);\n    color:#fff;padding:48px 40px 40px;\n    border-radius:12px 12px 0 0;text-align:center;\n    position:relative;overflow:hidden;\n  }\n  .pd-hero::before{\n    content:'';position:absolute;top:-40px;right:-40px;\n    width:200px;height:200px;border-radius:50%;\n    background:rgba(0,220,100,.06);\n  }\n  .pd-hero .badge{\n    display:inline-block;\n    background:rgba(255,255,255,.15);\n    border:1px solid rgba(255,255,255,.3);\n    color:#90caf9;font-size:11px;letter-spacing:2px;\n    text-transform:uppercase;padding:4px 16px;\n    border-radius:20px;margin-bottom:14px;\n  }\n  .pd-hero h1{font-size:30px;font-weight:700;letter-spacing:-.4px;margin-bottom:10px}\n  .pd-hero .sub{font-size:13.5px;color:#90caf9;letter-spacing:.6px}\n\n  \/* ── Intro ─────────────────────────────────────────────────── *\/\n  .pd-intro{\n    background:#f4f8ff;border-left:5px solid #1565c0;\n    padding:22px 28px;margin:28px 0;\n    border-radius:0 8px 8px 0;font-size:14.5px;color:#222;\n  }\n\n  \/* ── Section ──────────────────────────────────────────────── *\/\n  .pd-section{margin:36px 0}\n  .pd-section-title{\n    font-size:19px;font-weight:700;color:#1565c0;\n    border-bottom:2px solid #e3eaf7;padding-bottom:10px;\n    margin-bottom:20px;display:flex;align-items:center;gap:10px;\n  }\n  .pd-section-title .icon{\n    width:28px;height:28px;background:#1565c0;border-radius:6px;\n    display:flex;align-items:center;justify-content:center;flex-shrink:0;\n  }\n  .pd-section-title .icon svg{width:16px;height:16px}\n\n  \/* ── Features grid ────────────────────────────────────────── *\/\n  .pd-features{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}\n  .pd-feature-item{\n    background:#f8faff;border:1px solid #dde8f8;border-radius:8px;\n    padding:13px 16px;font-size:13.5px;display:flex;align-items:flex-start;gap:10px;\n  }\n  .pd-feature-item .bullet{\n    width:8px;height:8px;background:#1565c0;border-radius:50%;\n    margin-top:6px;flex-shrink:0;\n  }\n\n  \/* ── Package contents ─────────────────────────────────────── *\/\n  .pd-package{display:flex;flex-wrap:wrap;gap:14px}\n  .pd-pkg-item{\n    background:#fff;border:2px solid #dde8f8;border-radius:10px;\n    padding:16px 22px;font-size:13.5px;font-weight:600;color:#1b3a5c;\n    display:flex;align-items:center;gap:10px;min-width:220px;\n  }\n  .pd-pkg-item .num{\n    width:28px;height:28px;background:#1565c0;color:#fff;\n    border-radius:50%;display:flex;align-items:center;\n    justify-content:center;font-size:13px;font-weight:700;flex-shrink:0;\n  }\n\n  \/* ── Specs table ──────────────────────────────────────────── *\/\n  .pd-specs-table{width:100%;border-collapse:collapse;font-size:13.5px}\n  .pd-specs-table thead tr{background:#1565c0;color:#fff}\n  .pd-specs-table thead th{padding:11px 16px;text-align:left;font-weight:600}\n  .pd-specs-table tbody tr:nth-child(even){background:#f4f8ff}\n  .pd-specs-table tbody tr:hover{background:#e8f0fe}\n  .pd-specs-table tbody td{padding:10px 16px;border-bottom:1px solid #e0e8f8;color:#333}\n  .pd-specs-table tbody td:first-child{font-weight:600;color:#1b3a5c;width:42%}\n\n  \/* ── Panel diagrams ───────────────────────────────────────── *\/\n  .pd-diagram-box{\n    background:#f0f4fb;border:1px solid #d0dcf0;\n    border-radius:10px;padding:26px 22px;margin-bottom:24px;\n  }\n  .pd-diagram-box h3{\n    font-size:15px;font-weight:700;color:#1b3a5c;\n    margin-bottom:18px;text-align:center;\n    text-transform:uppercase;letter-spacing:.5px;\n  }\n  .pd-diagram-box svg{display:block;margin:0 auto 22px;max-width:100%}\n\n  \/* ── Panel indicator \/ connector table ───────────────────── *\/\n  .pd-panel-table{width:100%;border-collapse:collapse;font-size:13px;margin-top:8px}\n  .pd-panel-table thead tr{background:#1b3a5c;color:#fff}\n  .pd-panel-table thead th{padding:10px 14px;text-align:left;font-weight:600}\n  .pd-panel-table tbody tr:nth-child(even){background:#edf2fb}\n  .pd-panel-table tbody td{padding:10px 14px;border-bottom:1px solid #d8e3f5;vertical-align:top}\n  .pd-panel-table tbody td:first-child{text-align:center;font-weight:700;color:#1565c0;width:44px}\n  .pd-panel-table tbody td:nth-child(2){font-weight:600;color:#1b3a5c;width:165px}\n\n  \/* ── Application diagram ──────────────────────────────────── *\/\n  .pd-app-box{\n    background:#fff;border:2px solid #c8d9f5;\n    border-radius:12px;padding:28px 22px;text-align:center;\n  }\n  .pd-app-box p{margin-top:16px;font-size:13px;color:#555;text-align:left}\n\n  \/* ── Trademark notice ─────────────────────────────────────── *\/\n  .pd-trademark{\n    background:#f9f9f9;border:1px solid #e0e0e0;border-radius:8px;\n    padding:16px 20px;font-size:12px;color:#666;\n    margin-top:28px;display:flex;align-items:flex-start;gap:14px;\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"pd-wrap\"\u003e\n\u003c!-- ═══════════════════════════  HERO  ═══════════════════════════ --\u003e\n\u003cdiv class=\"pd-hero\"\u003e\n\u003cdiv class=\"badge\"\u003e4-Port Serial Device Server\u003c\/div\u003e\n\u003ch1\u003eNetwork Serial Port Expander\u003c\/h1\u003e\n\u003cdiv class=\"sub\"\u003eModel: ST-NCTL210  |  Firmware Ver 2.0  |  RS-232 \/ RS-422 \/ RS-485\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ═══════════════════════════  INTRO  ══════════════════════════ --\u003e\n\u003cdiv class=\"pd-intro\"\u003eThis Network Serial Port Expander, with 4 extended input\/output serial ports, communicates with any programmable central control system or PC to control multiple devices and perform protocol conversion between various devices with different communication modes. Built-in RS-232 and 100 M Ethernet interfaces make it compatible with AMX, Crestron, RTI and all other third-party control systems. Front-panel LED indicators give instant visibility into power, data activity and relay status.\u003c\/div\u003e\n\u003c!-- ═══════════════════════  KEY FEATURES  ═══════════════════════ --\u003e\n\u003cdiv class=\"pd-section\"\u003e\n\u003cdiv class=\"pd-section-title\"\u003e\n\u003cdiv class=\"icon\"\u003e\u003csvg stroke-width=\"2.2\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpolyline points=\"9 11 12 14 22 4\"\u003e\u003c\/polyline\u003e\u003cpath d=\"M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\nKey Features\u003c\/div\u003e\n\u003cdiv class=\"pd-features\"\u003e\n\u003cdiv class=\"pd-feature-item\"\u003e\n\u003cdiv class=\"bullet\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003cstrong\u003e4 Extended Serial Ports\u003c\/strong\u003e — COM1 \u0026amp; COM2 support RS-232 \/ RS-232+HW Flow \/ RS-422 \/ RS-485; COM3 \u0026amp; COM4 support RS-232 \/ RS-232+HW Flow\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feature-item\"\u003e\n\u003cdiv class=\"bullet\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003cstrong\u003eUniversal Baud Rates\u003c\/strong\u003e — 2400, 4800, 9600, 14400, 19200, 38400, 56000, 57600, 115200\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feature-item\"\u003e\n\u003cdiv class=\"bullet\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003cstrong\u003eFull Frame Buffering\u003c\/strong\u003e — Large TX\/RX buffer per port; data queue support; up to 512 bytes per frame\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feature-item\"\u003e\n\u003cdiv class=\"bullet\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003cstrong\u003eTCP \u0026amp; UDP Transparent\u003c\/strong\u003e — COM1–4 TCP ports 8001–8004; UDP local ports 9001–9004; system port 8005 \/ 9005\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feature-item\"\u003e\n\u003cdiv class=\"bullet\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003cstrong\u003e4 Independent Relay Ports\u003c\/strong\u003e — Normally-open contacts, isolated, rated up to 1 A \/ 24 V DC\/AC\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feature-item\"\u003e\n\u003cdiv class=\"bullet\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003cstrong\u003eBuilt-in Web Server\u003c\/strong\u003e — Configure from any browser on PC, tablet or mobile; no software required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feature-item\"\u003e\n\u003cdiv class=\"bullet\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003cstrong\u003e100 M Ethernet + RS-232\u003c\/strong\u003e — Compatible with AMX, Crestron, RTI and all third-party control systems\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feature-item\"\u003e\n\u003cdiv class=\"bullet\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003cstrong\u003eAPI Command Control\u003c\/strong\u003e — Full ASCII command set over serial or TCP\/UDP for system integration\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feature-item\"\u003e\n\u003cdiv class=\"bullet\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003cstrong\u003eProduct Name Support\u003c\/strong\u003e — Rename \/ remark the device name (max 8 characters)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ═══════════════════  PACKAGE CONTENTS  ═══════════════════════ --\u003e\n\u003cdiv class=\"pd-section\"\u003e\n\u003cdiv class=\"pd-section-title\"\u003e\n\u003cdiv class=\"icon\"\u003e\u003csvg stroke-width=\"2.2\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\nPackage Contents\u003c\/div\u003e\n\u003cdiv class=\"pd-package\"\u003e\n\u003cdiv class=\"pd-pkg-item\"\u003e\n\u003cdiv class=\"num\"\u003e①\u003c\/div\u003e\n1 × Network Serial Port Expander\u003c\/div\u003e\n\u003cdiv class=\"pd-pkg-item\"\u003e\n\u003cdiv class=\"num\"\u003e②\u003c\/div\u003e\n2 × 5-pin Phoenix Connector (3.81 mm, male)\u003c\/div\u003e\n\u003cdiv class=\"pd-pkg-item\"\u003e\n\u003cdiv class=\"num\"\u003e③\u003c\/div\u003e\n2 × 7-pin Phoenix Connector (3.81 mm, male)\u003c\/div\u003e\n\u003cdiv class=\"pd-pkg-item\"\u003e\n\u003cdiv class=\"num\"\u003e④\u003c\/div\u003e\n1 × 8-pin Phoenix Connector (3.81 mm, male)\u003c\/div\u003e\n\u003cdiv class=\"pd-pkg-item\"\u003e\n\u003cdiv class=\"num\"\u003e⑤\u003c\/div\u003e\n2 × 9-pin Phoenix Connector (3.81 mm, male)\u003c\/div\u003e\n\u003cdiv class=\"pd-pkg-item\"\u003e\n\u003cdiv class=\"num\"\u003e⑥\u003c\/div\u003e\n4 × Machine Screw\u003c\/div\u003e\n\u003cdiv class=\"pd-pkg-item\"\u003e\n\u003cdiv class=\"num\"\u003e⑦\u003c\/div\u003e\n2 × Mounting Ear\u003c\/div\u003e\n\u003cdiv class=\"pd-pkg-item\"\u003e\n\u003cdiv class=\"num\"\u003e⑧\u003c\/div\u003e\n1 × 24 V\/1 A Power Adaptor + 2-pin 3.5 mm Phoenix Connector\u003c\/div\u003e\n\u003cdiv class=\"pd-pkg-item\"\u003e\n\u003cdiv class=\"num\"\u003e⑨\u003c\/div\u003e\n1 × User Manual\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ════════════════════  SPECIFICATIONS  ════════════════════════ --\u003e\n\u003cdiv class=\"pd-section\"\u003e\n\u003cdiv class=\"pd-section-title\"\u003e\n\u003cdiv class=\"icon\"\u003e\u003csvg stroke-width=\"2.2\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"18\" width=\"18\" y=\"3\" x=\"3\"\u003e\u003c\/rect\u003e\u003cline y2=\"9\" x2=\"21\" y1=\"9\" x1=\"3\"\u003e\u003c\/line\u003e\u003cline y2=\"9\" x2=\"9\" y1=\"21\" x1=\"9\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/div\u003e\nSpecifications\u003c\/div\u003e\n\u003ctable class=\"pd-specs-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS-232\u003c\/td\u003e\n\u003ctd\u003eFull duplex; configurable hardware flow control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS-422\u003c\/td\u003e\n\u003ctd\u003eFull duplex communication mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS-485\u003c\/td\u003e\n\u003ctd\u003eHalf duplex communication mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaud Rate\u003c\/td\u003e\n\u003ctd\u003e2400 \/ 4800 \/ 9600 \/ 14400 \/ 19200 \/ 38400 \/ 56000 \/ 57600 \/ 115200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLAN\u003c\/td\u003e\n\u003ctd\u003e10\/100 M Ethernet interface (RJ45)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Output\u003c\/td\u003e\n\u003ctd\u003e4 × normally-open, isolated — up to 1 A \/ 24 V DC\/AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e1 × LAN [RJ45], 1 × MAIN COM [7-pin phoenix], 1 × DC 24 V [2-pin phoenix]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003e1 × NEXT COM [7-pin], 2 × COM 1\/2 [9-pin], 2 × COM 3\/4 [5-pin], 1 × RELAY OUTPUT [8-pin]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eInput: AC 100–240 V 50\/60 Hz — Output: DC 24 V \/ 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 °C ~ 40 °C \/ 32 °F ~ 104 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e−20 °C ~ 60 °C \/ −4 °F ~ 140 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e20–90 % RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e147 mm (W) × 130 mm (D) × 42 mm (H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing \/ Color\u003c\/td\u003e\n\u003ctd\u003eMetal enclosure — Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e673 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- ══════════════════  FRONT PANEL  ═════════════════════════════ --\u003e\n\u003cdiv class=\"pd-section\"\u003e\n\u003cdiv class=\"pd-section-title\"\u003e\n\u003cdiv class=\"icon\"\u003e\u003csvg stroke-width=\"2.2\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"10\" width=\"20\" y=\"7\" x=\"2\"\u003e\u003c\/rect\u003e\u003ccircle fill=\"#fff\" r=\"1.2\" cy=\"12\" cx=\"6\"\u003e\u003c\/circle\u003e\u003ccircle fill=\"#fff\" r=\"1.2\" cy=\"12\" cx=\"10\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003c\/div\u003e\nFront Panel\u003c\/div\u003e\n\u003cdiv class=\"pd-diagram-box\"\u003e\n\u003ch3\u003eFront Panel Layout\u003c\/h3\u003e\n\u003c!-- SVG front-panel illustration --\u003e \u003csvg width=\"720\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 760 130\"\u003e\n        \n        \u003crect stroke-width=\"2\" stroke=\"#555\" fill=\"#2c2c2c\" rx=\"8\" height=\"94\" width=\"744\" y=\"18\" x=\"8\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#3a3a3a\" rx=\"8\" height=\"14\" width=\"744\" y=\"18\" x=\"8\"\u003e\u003c\/rect\u003e\n        \n        \u003ctext letter-spacing=\"1\" font-family=\"monospace\" fill=\"#aaa\" font-size=\"9\" y=\"33\" x=\"30\"\u003e4-PORT SERIAL DEVICE SERVER\u003c\/text\u003e\n\n        \n        \u003ctext font-family=\"sans-serif\" fill=\"#bbb\" font-size=\"9\" y=\"60\" x=\"28\"\u003ePWR\u003c\/text\u003e\n        \u003ccircle fill=\"#00c853\" r=\"5\" cy=\"56\" cx=\"62\"\u003e\u003c\/circle\u003e\n        \u003ctext font-family=\"sans-serif\" fill=\"#bbb\" font-size=\"9\" y=\"78\" x=\"28\"\u003eLAN\u003c\/text\u003e\n        \u003ccircle fill=\"#00c853\" r=\"5\" cy=\"74\" cx=\"62\"\u003e\u003c\/circle\u003e\n\n        \n        \u003ctext text-anchor=\"middle\" font-family=\"sans-serif\" fill=\"#ccc\" font-size=\"9\" y=\"46\" x=\"115\"\u003eRELAYS\u003c\/text\u003e\n        \u003crect stroke-width=\"1\" stroke=\"#444\" fill=\"#1a1a1a\" rx=\"4\" height=\"44\" width=\"68\" y=\"52\" x=\"82\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" fill=\"#aaa\" font-size=\"8\" y=\"67\" x=\"92\"\u003e1\u003c\/text\u003e\n        \u003ccircle fill=\"#2e7d32\" r=\"5\" cy=\"63\" cx=\"103\"\u003e\u003c\/circle\u003e\n        \u003ctext font-family=\"sans-serif\" fill=\"#aaa\" font-size=\"8\" y=\"67\" x=\"117\"\u003e2\u003c\/text\u003e\n        \u003ccircle fill=\"#2e7d32\" r=\"5\" cy=\"63\" cx=\"128\"\u003e\u003c\/circle\u003e\n        \u003ctext font-family=\"sans-serif\" fill=\"#aaa\" font-size=\"8\" y=\"85\" x=\"92\"\u003e3\u003c\/text\u003e\n        \u003ccircle fill=\"#2e7d32\" r=\"5\" cy=\"81\" cx=\"103\"\u003e\u003c\/circle\u003e\n        \u003ctext font-family=\"sans-serif\" fill=\"#aaa\" font-size=\"8\" y=\"85\" x=\"117\"\u003e4\u003c\/text\u003e\n        \u003ccircle fill=\"#2e7d32\" r=\"5\" cy=\"81\" cx=\"128\"\u003e\u003c\/circle\u003e\n\n        \n        \u003ctext text-anchor=\"middle\" font-family=\"sans-serif\" fill=\"#ccc\" font-size=\"9\" y=\"46\" x=\"420\"\u003eRS-232 \/ 422 \/ 485\u003c\/text\u003e\n        \n        \u003ctext text-anchor=\"middle\" font-family=\"sans-serif\" fill=\"#90caf9\" font-size=\"8\" y=\"57\" x=\"252\"\u003eMAIN\u003c\/text\u003e\n        \u003ctext text-anchor=\"middle\" font-family=\"sans-serif\" fill=\"#90caf9\" font-size=\"8\" y=\"57\" x=\"322\"\u003eCOM 1\u003c\/text\u003e\n        \u003ctext text-anchor=\"middle\" font-family=\"sans-serif\" fill=\"#90caf9\" font-size=\"8\" y=\"57\" x=\"392\"\u003eCOM 2\u003c\/text\u003e\n        \u003ctext text-anchor=\"middle\" font-family=\"sans-serif\" fill=\"#90caf9\" font-size=\"8\" y=\"57\" x=\"462\"\u003eCOM 3\u003c\/text\u003e\n        \u003ctext text-anchor=\"middle\" font-family=\"sans-serif\" fill=\"#90caf9\" font-size=\"8\" y=\"57\" x=\"532\"\u003eCOM 4\u003c\/text\u003e\n        \n        \u003ctext font-family=\"sans-serif\" fill=\"#ff7043\" font-size=\"8\" y=\"72\" x=\"220\"\u003eTX\u003c\/text\u003e\n        \u003ccircle fill=\"#c62828\" r=\"5\" cy=\"68\" cx=\"252\"\u003e\u003c\/circle\u003e\n        \u003ccircle fill=\"#c62828\" r=\"5\" cy=\"68\" cx=\"322\"\u003e\u003c\/circle\u003e\n        \u003ccircle fill=\"#c62828\" r=\"5\" cy=\"68\" cx=\"392\"\u003e\u003c\/circle\u003e\n        \u003ccircle fill=\"#c62828\" r=\"5\" cy=\"68\" cx=\"462\"\u003e\u003c\/circle\u003e\n        \u003ccircle fill=\"#c62828\" r=\"5\" cy=\"68\" cx=\"532\"\u003e\u003c\/circle\u003e\n        \n        \u003ctext font-family=\"sans-serif\" fill=\"#ffb300\" font-size=\"8\" y=\"90\" x=\"220\"\u003eRX\u003c\/text\u003e\n        \u003ccircle fill=\"#f57f17\" r=\"5\" cy=\"86\" cx=\"252\"\u003e\u003c\/circle\u003e\n        \u003ccircle fill=\"#f57f17\" r=\"5\" cy=\"86\" cx=\"322\"\u003e\u003c\/circle\u003e\n        \u003ccircle fill=\"#f57f17\" r=\"5\" cy=\"86\" cx=\"392\"\u003e\u003c\/circle\u003e\n        \u003ccircle fill=\"#f57f17\" r=\"5\" cy=\"86\" cx=\"462\"\u003e\u003c\/circle\u003e\n        \u003ccircle fill=\"#f57f17\" r=\"5\" cy=\"86\" cx=\"532\"\u003e\u003c\/circle\u003e\n\n        \n        \u003crect stroke-dasharray=\"3,2\" stroke-width=\"1\" stroke=\"#444\" fill=\"none\" rx=\"4\" height=\"52\" width=\"347\" y=\"50\" x=\"205\"\u003e\u003c\/rect\u003e\n      \u003c\/svg\u003e\n\u003ctable class=\"pd-panel-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e#\u003c\/th\u003e\n\u003cth\u003eName\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eLAN LED\u003c\/td\u003e\n\u003ctd\u003eNetwork connection indicator — green flashes when network communication is active.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003ePOWER LED\u003c\/td\u003e\n\u003ctd\u003eGreen light on when the device is powered up.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eRELAYS LED\u003c\/td\u003e\n\u003ctd\u003eRelay closing indicator — green stays on when relay is set to closed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eRS-232\/422\/485 LED\u003c\/td\u003e\n\u003ctd\u003eTX\/RX indicators for each extended serial port — red flashes on send, yellow flashes on receive.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ══════════════════  REAR PANEL  ══════════════════════════════ --\u003e\n\u003cdiv class=\"pd-section\"\u003e\n\u003cdiv class=\"pd-section-title\"\u003e\n\u003cdiv class=\"icon\"\u003e\u003csvg stroke-width=\"2.2\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"10\" width=\"20\" y=\"7\" x=\"2\"\u003e\u003c\/rect\u003e\u003cline y2=\"13\" x2=\"8\" y1=\"11\" x1=\"8\"\u003e\u003c\/line\u003e\u003cline y2=\"13\" x2=\"12\" y1=\"11\" x1=\"12\"\u003e\u003c\/line\u003e\u003cline y2=\"13\" x2=\"16\" y1=\"11\" x1=\"16\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/div\u003e\nRear Panel\u003c\/div\u003e\n\u003cdiv class=\"pd-diagram-box\"\u003e\n\u003ch3\u003eRear Panel Layout\u003c\/h3\u003e\n\u003csvg width=\"720\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 760 130\"\u003e\n        \n        \u003crect stroke-width=\"2\" stroke=\"#555\" fill=\"#2c2c2c\" rx=\"8\" height=\"94\" width=\"744\" y=\"18\" x=\"8\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#3a3a3a\" rx=\"8\" height=\"14\" width=\"744\" y=\"18\" x=\"8\"\u003e\u003c\/rect\u003e\n\n        \n        \n        \u003crect stroke-width=\"1.5\" stroke=\"#1565c0\" fill=\"#1a2a3a\" rx=\"4\" height=\"68\" width=\"70\" y=\"38\" x=\"20\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#90caf9\" font-size=\"8\" y=\"55\" x=\"55\"\u003eCOM 1\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#aaa\" font-size=\"7\" y=\"65\" x=\"55\"\u003e9-pin\u003c\/text\u003e\n        \u003ctext font-family=\"monospace\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"75\" x=\"55\"\u003eRS-232\/422\/485\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"98\" x=\"55\"\u003eRX+ TX+ GND TXD RXD\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"108\" x=\"55\"\u003eRTS CTS\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.5\" stroke=\"#1565c0\" fill=\"#1a2a3a\" rx=\"4\" height=\"68\" width=\"70\" y=\"38\" x=\"100\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#90caf9\" font-size=\"8\" y=\"55\" x=\"135\"\u003eCOM 2\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#aaa\" font-size=\"7\" y=\"65\" x=\"135\"\u003e9-pin\u003c\/text\u003e\n        \u003ctext font-family=\"monospace\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"75\" x=\"135\"\u003eRS-232\/422\/485\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"98\" x=\"135\"\u003eRX+ TX+ GND TXD RXD\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"108\" x=\"135\"\u003eRTS CTS\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.5\" stroke=\"#1565c0\" fill=\"#1a2a3a\" rx=\"4\" height=\"68\" width=\"60\" y=\"38\" x=\"180\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#90caf9\" font-size=\"8\" y=\"55\" x=\"210\"\u003eCOM 3\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#aaa\" font-size=\"7\" y=\"65\" x=\"210\"\u003e5-pin\u003c\/text\u003e\n        \u003ctext font-family=\"monospace\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"75\" x=\"210\"\u003eRS-232\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"98\" x=\"210\"\u003eGND TXD RXD\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"108\" x=\"210\"\u003eRTS CTS\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.5\" stroke=\"#1565c0\" fill=\"#1a2a3a\" rx=\"4\" height=\"68\" width=\"60\" y=\"38\" x=\"250\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#90caf9\" font-size=\"8\" y=\"55\" x=\"280\"\u003eCOM 4\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#aaa\" font-size=\"7\" y=\"65\" x=\"280\"\u003e5-pin\u003c\/text\u003e\n        \u003ctext font-family=\"monospace\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"75\" x=\"280\"\u003eRS-232\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"98\" x=\"280\"\u003eGND TXD RXD\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"108\" x=\"280\"\u003eRTS CTS\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.5\" stroke=\"#388e3c\" fill=\"#1a2a1a\" rx=\"4\" height=\"68\" width=\"76\" y=\"38\" x=\"322\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#a5d6a7\" font-size=\"8\" y=\"55\" x=\"360\"\u003eRELAY OUT\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#aaa\" font-size=\"7\" y=\"65\" x=\"360\"\u003e8-pin\u003c\/text\u003e\n        \u003ctext font-family=\"monospace\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"77\" x=\"360\"\u003eS G S G S G S G\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"90\" x=\"360\"\u003e1  2  3  4\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"103\" x=\"360\"\u003e1A \/ 24V DC\/AC\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.5\" stroke=\"#7b1fa2\" fill=\"#1a1a2a\" rx=\"4\" height=\"68\" width=\"70\" y=\"38\" x=\"410\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#ce93d8\" font-size=\"8\" y=\"55\" x=\"445\"\u003eNEXT COM\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#aaa\" font-size=\"7\" y=\"65\" x=\"445\"\u003e7-pin\u003c\/text\u003e\n        \u003ctext font-family=\"monospace\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"77\" x=\"445\"\u003eRS-232\/422\/485\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"90\" x=\"445\"\u003eCascade Output\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.5\" stroke=\"#0288d1\" fill=\"#1a1a2a\" rx=\"4\" height=\"68\" width=\"70\" y=\"38\" x=\"492\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#81d4fa\" font-size=\"8\" y=\"55\" x=\"527\"\u003eMAIN COM\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#aaa\" font-size=\"7\" y=\"65\" x=\"527\"\u003e7-pin\u003c\/text\u003e\n        \u003ctext font-family=\"monospace\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"77\" x=\"527\"\u003eRS-232\/422\/485\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"90\" x=\"527\"\u003ePIN5=GND PIN6=TXD\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"100\" x=\"527\"\u003ePIN7=RXD\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.5\" stroke=\"#00897b\" fill=\"#1a2a1a\" rx=\"4\" height=\"68\" width=\"66\" y=\"38\" x=\"574\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#80cbc4\" font-size=\"8\" y=\"55\" x=\"607\"\u003eLAN\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#aaa\" font-size=\"7\" y=\"67\" x=\"607\"\u003eRJ45\u003c\/text\u003e\n        \u003ctext font-family=\"monospace\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"79\" x=\"607\"\u003e10\/100 Mbps\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"91\" x=\"607\"\u003eDirect connect only\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"101\" x=\"607\"\u003e(no cross-cable)\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.5\" stroke=\"#b71c1c\" fill=\"#2a1a1a\" rx=\"4\" height=\"68\" width=\"90\" y=\"38\" x=\"652\"\u003e\u003c\/rect\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#ef9a9a\" font-size=\"8\" y=\"55\" x=\"697\"\u003eRESET \/ DC 24V\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"68\" x=\"697\"\u003eHold 5 sec → factory reset\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#ccc\" font-size=\"6.5\" y=\"81\" x=\"697\"\u003eIP → 192.168.1.100\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#ef9a9a\" font-size=\"7\" y=\"96\" x=\"697\"\u003eDC 24V \/ 1A\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#777\" font-size=\"6\" y=\"107\" x=\"697\"\u003e2-pin Phoenix\u003c\/text\u003e\n      \u003c\/svg\u003e\n\u003ctable class=\"pd-panel-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e#\u003c\/th\u003e\n\u003cth\u003eLabel\u003c\/th\u003e\n\u003cth\u003eFunction \u0026amp; Pin-Out\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eDC 24V\u003c\/td\u003e\n\u003ctd\u003eDC 24 V \/ 1 A power input (2-pin phoenix connector).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eRESET Button\u003c\/td\u003e\n\u003ctd\u003eHold 5 seconds → factory reset. IP restores to \u003cstrong\u003e192.168.1.100\u003c\/strong\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003eLAN Port\u003c\/td\u003e\n\u003ctd\u003e10\/100 M network port (RJ45). Use direct (non-crossover) UTP cable.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003eMAIN COM\u003c\/td\u003e\n\u003ctd\u003eMain serial port for central control or PC. RS-232: PIN5=GND, PIN6=TXD, PIN7=RXD. RS-422: PIN1=RX−, PIN2=RX+, PIN3=TX−, PIN4=TX+, PIN5=GND. RS-485: short PIN1(RX−)+PIN3(TX−)→B; PIN2(RX+)+PIN4(TX+)→A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003eNEXT COM\u003c\/td\u003e\n\u003ctd\u003eMain serial port cascade output (same pin-out as MAIN COM).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003eRELAY OUTPUT\u003c\/td\u003e\n\u003ctd\u003e4 × independent, isolated, normally-open relay contacts. Max 1 A \/ 24 V DC\/AC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003eRS-232\/422\/485\u003c\/td\u003e\n\u003ctd\u003eCOM1 \u0026amp; COM2 (9-pin): RS-232+HW \/ RS-422 \/ RS-485. PIN1=RX−, PIN2=RX+, PIN3=TX−, PIN4=TX+, PIN5=GND, PIN8=RTS, PIN9=CTS. COM3 \u0026amp; COM4 (5-pin): RS-232 only; PIN5=GND, PIN6=TXD, PIN7=RXD, PIN8=RTS, PIN9=CTS.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eChassis ground connection point.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ═══════════════════  APPLICATION EXAMPLE  ════════════════════ --\u003e\n\u003cdiv class=\"pd-section\"\u003e\n\u003cdiv class=\"pd-section-title\"\u003e\n\u003cdiv class=\"icon\"\u003e\u003csvg stroke-width=\"2.2\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003ccircle r=\"10\" cy=\"12\" cx=\"12\"\u003e\u003c\/circle\u003e\u003cline y2=\"12\" x2=\"22\" y1=\"12\" x1=\"2\"\u003e\u003c\/line\u003e\u003cpath d=\"M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\nApplication Example\u003c\/div\u003e\n\u003cdiv class=\"pd-app-box\"\u003e\n\u003c!--\n        Application wiring diagram\n        viewBox: 0 0 680 380\n        Safe x: 10 to 670\n        Layout (3-column):\n          Left  col: x=10..120  — Laptop(top), Projector(mid), Curtain(bot)\n          Center col: x=255..425 — DVD(top), Expander(mid)\n          Right col: x=540..640  — Dimming Ctrl(top-mid), Light1(top), Light2(upper-mid), Control Laptop(bot)\n      --\u003e \u003csvg style=\"max-width: 680px; display: block; margin: 0 auto;\" width=\"100%\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 680 380\"\u003e\n        \u003cdefs\u003e\n          \u003cmarker orient=\"auto\" refy=\"3.5\" refx=\"5\" markerheight=\"7\" markerwidth=\"7\" id=\"arr\"\u003e\u003cpath stroke-linejoin=\"round\" stroke-width=\"1.2\" stroke=\"#1565c0\" fill=\"none\" d=\"M1,1 L6,3.5 L1,6\"\u003e\u003c\/path\u003e\u003c\/marker\u003e\n          \u003cmarker orient=\"auto\" refy=\"3.5\" refx=\"5\" markerheight=\"7\" markerwidth=\"7\" id=\"arrg\"\u003e\u003cpath stroke-linejoin=\"round\" stroke-width=\"1.2\" stroke=\"#388e3c\" fill=\"none\" d=\"M1,1 L6,3.5 L1,6\"\u003e\u003c\/path\u003e\u003c\/marker\u003e\n          \u003cmarker orient=\"auto\" refy=\"3.5\" refx=\"5\" markerheight=\"7\" markerwidth=\"7\" id=\"arrt\"\u003e\u003cpath stroke-linejoin=\"round\" stroke-width=\"1.2\" stroke=\"#00897b\" fill=\"none\" d=\"M1,1 L6,3.5 L1,6\"\u003e\u003c\/path\u003e\u003c\/marker\u003e\n          \u003cmarker orient=\"auto\" refy=\"3.5\" refx=\"5\" markerheight=\"7\" markerwidth=\"7\" id=\"arro\"\u003e\u003cpath stroke-linejoin=\"round\" stroke-width=\"1.2\" stroke=\"#f57f17\" fill=\"none\" d=\"M1,1 L6,3.5 L1,6\"\u003e\u003c\/path\u003e\u003c\/marker\u003e\n        \u003c\/defs\u003e\n\n        \n\n        \n        \u003crect stroke-width=\"1.2\" stroke=\"#78909c\" fill=\"#37474f\" rx=\"5\" height=\"54\" width=\"110\" y=\"18\" x=\"10\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#1a237e\" rx=\"2\" height=\"34\" width=\"94\" y=\"24\" x=\"18\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#546e7a\" rx=\"3\" height=\"7\" width=\"118\" y=\"72\" x=\"6\"\u003e\u003c\/rect\u003e\n        \u003ctext font-weight=\"600\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#cfd8dc\" font-size=\"10\" y=\"93\" x=\"65\"\u003eLaptop\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.2\" stroke=\"#78909c\" fill=\"#37474f\" rx=\"5\" height=\"55\" width=\"110\" y=\"155\" x=\"10\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#263238\" rx=\"2\" height=\"35\" width=\"75\" y=\"161\" x=\"18\"\u003e\u003c\/rect\u003e\n        \u003cellipse stroke-width=\"1\" stroke=\"#90a4ae\" fill=\"#b0bec5\" ry=\"8\" rx=\"10\" cy=\"178\" cx=\"104\"\u003e\u003c\/ellipse\u003e\n        \u003ctext font-weight=\"600\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#cfd8dc\" font-size=\"10\" y=\"226\" x=\"65\"\u003eProjector\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.2\" stroke=\"#7b1fa2\" fill=\"#4a148c\" rx=\"5\" height=\"50\" width=\"110\" y=\"265\" x=\"10\"\u003e\u003c\/rect\u003e\n        \u003ctext font-weight=\"600\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#e1bee7\" font-size=\"10\" y=\"286\" x=\"65\"\u003eCurtain\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#ce93d8\" font-size=\"8\" y=\"302\" x=\"65\"\u003eMotor\u003c\/text\u003e\n\n        \n\n        \n        \u003crect stroke-width=\"1.2\" stroke=\"#616161\" fill=\"#212121\" rx=\"5\" height=\"40\" width=\"160\" y=\"18\" x=\"255\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#1565c0\" rx=\"2\" height=\"5\" width=\"80\" y=\"27\" x=\"268\"\u003e\u003c\/rect\u003e\n        \u003ccircle stroke-width=\"1\" stroke=\"#757575\" fill=\"#424242\" r=\"7\" cy=\"32\" cx=\"396\"\u003e\u003c\/circle\u003e\n        \u003ctext font-weight=\"600\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#cfd8dc\" font-size=\"10\" y=\"74\" x=\"335\"\u003eDVD Player\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"2\" stroke=\"#1565c0\" fill=\"#0d2137\" rx=\"8\" height=\"80\" width=\"210\" y=\"155\" x=\"235\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#1565c0\" rx=\"8\" height=\"18\" width=\"210\" y=\"155\" x=\"235\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#1565c0\" height=\"6\" width=\"210\" y=\"167\" x=\"235\"\u003e\u003c\/rect\u003e\n        \u003ctext letter-spacing=\"0.8\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#fff\" font-size=\"8\" y=\"169\" x=\"340\"\u003eST-NCTL210\u003c\/text\u003e\n        \u003ctext font-weight=\"700\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#fff\" font-size=\"11\" y=\"193\" x=\"340\"\u003eNetwork Serial\u003c\/text\u003e\n        \u003ctext font-weight=\"700\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#fff\" font-size=\"11\" y=\"208\" x=\"340\"\u003ePort Expander\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#90caf9\" font-size=\"8\" y=\"228\" x=\"340\"\u003eRS-232 \/ RS-422 \/ RS-485 · LAN · 4× Relay\u003c\/text\u003e\n\n        \n\n        \n        \u003crect stroke-width=\"1.2\" stroke=\"#388e3c\" fill=\"#1b5e20\" rx=\"6\" height=\"65\" width=\"120\" y=\"100\" x=\"540\"\u003e\u003c\/rect\u003e\n        \u003ctext font-weight=\"600\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#c8e6c9\" font-size=\"10\" y=\"126\" x=\"600\"\u003eDimming\u003c\/text\u003e\n        \u003ctext font-weight=\"600\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#c8e6c9\" font-size=\"10\" y=\"142\" x=\"600\"\u003eController\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#81c784\" font-size=\"8\" y=\"158\" x=\"600\"\u003e4-ch output\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.2\" stroke=\"#f57f17\" fill=\"#f9a825\" rx=\"20\" height=\"42\" width=\"100\" y=\"18\" x=\"555\"\u003e\u003c\/rect\u003e\n        \u003ctext font-weight=\"700\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#4e2800\" font-size=\"9\" y=\"38\" x=\"605\"\u003eLight 1\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#4e2800\" font-size=\"7.5\" y=\"51\" x=\"605\"\u003eSpot \/ LED\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.2\" stroke=\"#f57f17\" fill=\"#f9a825\" rx=\"20\" height=\"42\" width=\"100\" y=\"65\" x=\"555\"\u003e\u003c\/rect\u003e\n        \u003ctext font-weight=\"700\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#4e2800\" font-size=\"9\" y=\"83\" x=\"605\"\u003eLight 2\u003c\/text\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#4e2800\" font-size=\"7.5\" y=\"98\" x=\"605\"\u003eSpot \/ LED\u003c\/text\u003e\n\n        \n        \u003crect stroke-width=\"1.2\" stroke=\"#78909c\" fill=\"#37474f\" rx=\"5\" height=\"58\" width=\"120\" y=\"270\" x=\"540\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#263238\" rx=\"2\" height=\"42\" width=\"104\" y=\"276\" x=\"548\"\u003e\u003c\/rect\u003e\n        \u003crect fill=\"#0d2137\" rx=\"1\" height=\"28\" width=\"80\" y=\"283\" x=\"560\"\u003e\u003c\/rect\u003e\n        \u003ctext font-weight=\"600\" font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#cfd8dc\" font-size=\"10\" y=\"346\" x=\"600\"\u003eControl Laptop\u003c\/text\u003e\n\n        \n\n        \n        \u003cpath marker-end=\"url(#arr)\" stroke-dasharray=\"5,3\" stroke-width=\"1.4\" stroke=\"#1565c0\" fill=\"none\" d=\"M120,47 L235,47 L235,162\"\u003e\u003c\/path\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#90caf9\" font-size=\"8\" y=\"41\" x=\"178\"\u003eRS-232\u003c\/text\u003e\n\n        \n        \u003cpath marker-end=\"url(#arr)\" stroke-dasharray=\"5,3\" stroke-width=\"1.4\" stroke=\"#1565c0\" fill=\"none\" d=\"M335,58 L335,155\"\u003e\u003c\/path\u003e\n        \u003ctext font-family=\"sans-serif\" fill=\"#90caf9\" font-size=\"8\" y=\"112\" x=\"348\"\u003eRS-232\u003c\/text\u003e\n\n        \n        \u003cpath marker-end=\"url(#arr)\" stroke-dasharray=\"5,3\" stroke-width=\"1.4\" stroke=\"#1565c0\" fill=\"none\" d=\"M235,185 L175,185 L175,182 L120,182\"\u003e\u003c\/path\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"end\" fill=\"#90caf9\" font-size=\"8\" y=\"178\" x=\"164\"\u003eRS-232\u003c\/text\u003e\n\n        \n        \u003cpath marker-end=\"url(#arrg)\" stroke-dasharray=\"4,3\" stroke-width=\"1.4\" stroke=\"#388e3c\" fill=\"none\" d=\"M255,235 L255,290 L120,290\"\u003e\u003c\/path\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#81c784\" font-size=\"8\" y=\"285\" x=\"183\"\u003eRELAY\u003c\/text\u003e\n\n        \n        \u003cpath marker-end=\"url(#arr)\" stroke-dasharray=\"5,3\" stroke-width=\"1.4\" stroke=\"#1565c0\" fill=\"none\" d=\"M445,185 L540,140\"\u003e\u003c\/path\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#90caf9\" font-size=\"8\" y=\"155\" x=\"496\"\u003eRS-232\u003c\/text\u003e\n\n        \n        \u003cpath marker-end=\"url(#arro)\" stroke-width=\"1.4\" stroke=\"#f57f17\" fill=\"none\" d=\"M600,100 L605,60\"\u003e\u003c\/path\u003e\n\n        \n        \u003cpath marker-end=\"url(#arro)\" stroke-width=\"1.4\" stroke=\"#f57f17\" fill=\"none\" d=\"M640,125 L650,125 L650,86 L655,86\"\u003e\u003c\/path\u003e\n\n        \n        \u003cpath marker-end=\"url(#arrt)\" stroke-dasharray=\"6,3\" stroke-width=\"1.8\" stroke=\"#00897b\" fill=\"none\" d=\"M420,235 L420,299 L540,299\"\u003e\u003c\/path\u003e\n        \u003ctext font-family=\"sans-serif\" text-anchor=\"middle\" fill=\"#80cbc4\" font-size=\"8\" y=\"293\" x=\"478\"\u003eCAT Cable (LAN)\u003c\/text\u003e\n\n      \u003c\/svg\u003e\n\u003cp\u003eIn a typical AV control room, the \u003cstrong\u003eNetwork Serial Port Expander\u003c\/strong\u003e acts as the central hub: a \u003cstrong\u003eLaptop\u003c\/strong\u003e and \u003cstrong\u003eDVD player\u003c\/strong\u003e connect via RS-232, while the expander drives the \u003cstrong\u003eProjector\u003c\/strong\u003e via RS-232 and controls a \u003cstrong\u003eCurtain motor\u003c\/strong\u003e through its relay output. A \u003cstrong\u003eDimming Controller\u003c\/strong\u003e for room lighting is driven via a second RS-232 port, and a \u003cstrong\u003etouch-panel laptop\u003c\/strong\u003e sends commands over the LAN via a standard CAT cable — giving full automation control of the entire room from one device.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ═══════════════  DEFAULT NETWORK INFO  ═══════════════════════ --\u003e\n\u003cdiv class=\"pd-section\"\u003e\n\u003cdiv class=\"pd-section-title\"\u003e\n\u003cdiv class=\"icon\"\u003e\u003csvg stroke-width=\"2.2\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M22 12h-4l-3 9L9 3l-3 9H2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\nDefault Network \u0026amp; Port Information\u003c\/div\u003e\n\u003ctable class=\"pd-specs-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDefault Value\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Address\u003c\/td\u003e\n\u003ctd\u003e192.168.1.100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubnet Mask\u003c\/td\u003e\n\u003ctd\u003e255.255.255.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGateway\u003c\/td\u003e\n\u003ctd\u003e192.168.1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Mode\u003c\/td\u003e\n\u003ctd\u003eDHCP OFF (static)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTCP\/UDP Mode\u003c\/td\u003e\n\u003ctd\u003eTCP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtend COM1–4 TCP Ports\u003c\/td\u003e\n\u003ctd\u003e8001 \/ 8002 \/ 8003 \/ 8004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem TCP Port\u003c\/td\u003e\n\u003ctd\u003e8005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtend COM1–4 UDP Local Ports\u003c\/td\u003e\n\u003ctd\u003e9001 \/ 9002 \/ 9003 \/ 9004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem UDP Local Port\u003c\/td\u003e\n\u003ctd\u003e9005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtend COM1–4 UDP Remote Ports\u003c\/td\u003e\n\u003ctd\u003e1001 \/ 1002 \/ 1003 \/ 1004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem UDP Remote Port\u003c\/td\u003e\n\u003ctd\u003e1005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain COM Baud Rate\u003c\/td\u003e\n\u003ctd\u003e115200 (8 data bits, 1 stop, no parity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- ═════════════════  TRADEMARK \/ CAUTION  ══════════════════════ --\u003e\n\u003cdiv class=\"pd-trademark\"\u003e\n\u003csvg style=\"flex-shrink: 0; margin-top: 2px;\" stroke-width=\"2\" stroke=\"#b0bec5\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"28\" width=\"28\"\u003e\u003ccircle r=\"10\" cy=\"12\" cx=\"12\"\u003e\u003c\/circle\u003e\u003cline y2=\"12\" x2=\"12\" y1=\"8\" x1=\"12\"\u003e\u003c\/line\u003e\u003cline y2=\"16\" x2=\"12.01\" y1=\"16\" x1=\"12\"\u003e\u003c\/line\u003e\u003c\/svg\u003e \u003cspan\u003e\u003cstrong\u003eCaution:\u003c\/strong\u003e This product requires UTP connectors wired using the \u003cem\u003edirect interconnection\u003c\/em\u003e method (T568A or T568B straight-through). Do not use a crossover cable. Use of a surge protection device is strongly recommended to protect sensitive internal components. AMX® and CRESTRON® are registered trademarks of their respective owners.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- end .pd-wrap --\u003e","brand":"STAISON","offers":[{"title":"Default Title","offer_id":47905732395229,"sku":null,"price":0.0,"currency_code":"SAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0802\/0410\/3901\/files\/IMG1579.jpg?v=1780233993","url":"https:\/\/www.staison.com\/products\/staison-4-port-expander-st-nctl210","provider":"STAISON","version":"1.0","type":"link"}