{"product_id":"cma137-abb-system-800xa-connection-modules","title":"CMA137 ABB System 800xA Connection Modules","description":"\u003ch2\u003eABB CMA137 System 800xA Connection Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for signal routing and field termination in System 800xA platforms, the \u003cstrong\u003eABB CMA137\u003c\/strong\u003e (\u003cstrong\u003eCMA137\u003c\/strong\u003e Connection Module) provides direct physical\/electrical execution. It establishes reliable physical wiring paths between field instrumentation—including sensors, transmitters, and actuators—and central PLC or I\/O processing hardware. The module accommodates direct 24 VDC system distribution across a compact enclosure designed to withstand electrical noise and harsh cabinet conditions.\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\u003eCMA137\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct ID\u003c\/td\u003e\n\u003ctd\u003e3DDE300417\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 mm x 100 mm x 100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard Industrial Range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard 24 VDC Load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eConnection Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Devices\u003c\/td\u003e\n\u003ctd\u003eSensors, Transmitters, Actuators, PLCs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Deterministic I\/O Interfaces\u003c\/h3\u003e\n\u003cp\u003eThe module optimizes data routing and signal continuity across system backplane interfaces without adding protocol conversion overhead. Through structured internal trace paths and terminal block interfaces, it maintains high-velocity signal transmission to primary process controllers while minimizing cross-talk and propagation delay. Built-in routing layers support high I\/O density scaling, enabling clean panel wiring and reliable communication loop integration under demanding bus clock cycles.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the unit maintain signal integrity across long field wiring runs?\u003c\/p\u003e\n\u003cp\u003eA: Internal conductive pathways and dedicated grounding points reduce stray capacitance and suppression interference, ensuring low signal loss between field transmitters and control modules.\u003c\/p\u003e\n\u003cp\u003eQ: What power supply parameters are required for operation within an ABB DCS cabinet?\u003c\/p\u003e\n\u003cp\u003eA: The module requires a standard 24 VDC supply rail, accommodating system distribution tolerances typical of ABB DCS cabinet setups.\u003c\/p\u003e\n\u003cp\u003eQ: Can the connection module be serviced without disconnecting individual field instrument cables?\u003c\/p\u003e\n\u003cp\u003eA: Depending on the terminal block configuration, field wiring disconnects cleanly at the module boundary, facilitating straightforward module replacement without unwiring field sensors or actuators.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the module securely on a standard DIN rail inside an IP54 or higher rated industrial panel to prevent exposure to dust and moisture. Maintain clear separation between high-voltage power lines and low-voltage signal cables to prevent electromagnetic interference.\u003c\/p\u003e\n\u003cp\u003eEnsure all field instrument cables—including input lines from sensors and transmitters and output lines to actuators—are properly stripped and clamped into their respective terminal blocks. Fasten the ground wire directly to the central panel cabinet functional earth bar using a low-impedance conductor. Verify 24 VDC power supply polarity before applying power to the rack assembly.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43772424192099,"sku":"CMA137","price":676.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/198.3.jpg?v=1760165419","url":"https:\/\/www.autocontrolglobal.com\/products\/cma137-abb-system-800xa-connection-modules","provider":"AutoControl Global","version":"1.0","type":"link"}