{"product_id":"yokogawa-mud-a-general-purpose-terminal-board","title":"Yokogawa MUD*A General-Purpose Terminal Board","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa MUD*A\u003c\/strong\u003e (commonly referenced as the \u003cstrong\u003eMUD*A\u003c\/strong\u003e or \u003cstrong\u003eMUD-A\u003c\/strong\u003e) operates as a general-purpose, rack-mounted terminal board within Yokogawa’s industrial automation platforms, such as CENTUM distributed control systems (DCS). It serves as a centralized mechanical and electrical marshaling hub natively at the marshalling tier to bridge field instrumentation wiring with high-density I\/O modules, maintaining transparent signal propagation parallel to master processor network execution cycles.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eMUD*A (e.g., MUD-A*A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.3 kg (2.87 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Density\u003c\/td\u003e\n\u003ctd\u003e32 terminal channels (Dual connection points supporting up to 64 conductors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTermination Connection\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty, industrial M4 screw-type terminal blocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Wire Gauges\u003c\/td\u003e\n\u003ctd\u003e24 AWG to 14 AWG ($0.2 \\text{ mm}^2$ to $2.0 \\text{ mm}^2$)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current\u003c\/td\u003e\n\u003ctd\u003e3 A continuous per individual terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Voltage\u003c\/td\u003e\n\u003ctd\u003e250 V AC\/DC operational thresholds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20°C to +60°C (-4°F to +140°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e10% to 95% RH (non-condensing boundaries)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003e≤ 0.5 mm P-P (0 to 14 Hz), ≤ 2 $\\text{m\/s}^2$ (14 to 100 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Shock Limits\u003c\/td\u003e\n\u003ctd\u003e5 g or less for an 11 ms pulse duration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSubstation \u0026amp; Marshalling Architecture\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Density Channel Routing:\u003c\/strong\u003e The terminal board distributes up to 64 individual field conductors across 32 isolated dual-point terminal blocks. This architecture allows simultaneous marshalling of diverse industrial telemetry, including 4-20 mA analog loops, discrete digital sensor lines, and thermocouple reference joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanic Circuit Integrity and Environmental Protection:\u003c\/strong\u003e Built into a heavy, rigid mounting frame, the structural backplane uses robust physical spacing to isolate neighboring terminal groups. This layout mitigates channel-to-channel crosstalk and protects logic loops from high-potential common-mode surges typical in industrial control cabinets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterconnect Cable Compatibility:\u003c\/strong\u003e The assembly links directly to backend Yokogawa I\/O racks using pre-fabricated, multi-core shielded interface cables. This design eliminates field point-to-point wiring lag, protecting high-resolution analog-to-digital converters from noise induction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What specific hardware failure states manifest if a terminal screw on the MUD*A is over-torqued beyond specification limits?\u003c\/p\u003e\n\u003cp\u003eA: Over-torquing strips the internal brass threading or deforms the pressure plate assembly. This creates a high-resistance localized connection, causing thermal heat-soak anomalies, intermittent signal attenuation, or complete physical conductor shearing during high-vibration events.\u003c\/p\u003e\n\u003cp\u003eQ: Can field conductors be landed on the MUD*A terminal board while the associated DCS I\/O module rack is live and actively scanning loops?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the board is entirely passive. However, technicians must verify that the individual field loops are isolated or unpowered before landing wires to prevent introducing unexpected field shorts or voltage spikes that could damage backend digital acquisition circuits.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":47705122537662,"sku":"MUD*A","price":3000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-16_10-05-04_15219c03-6714-47ed-b0e0-c2a22d0099aa.png?v=1782279313","url":"https:\/\/www.autooiltech.com\/products\/yokogawa-mud-a-general-purpose-terminal-board","provider":"AutoOilTech Limited","version":"1.0","type":"link"}