{"product_id":"bachmann-rs204-serial-communication-module","title":"Bachmann RS204 Serial Communication Module","description":"\u003ch2\u003e\n\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0834\/0789\/6885\/files\/Bachmann_70f48a98-d9af-43aa-8a7a-47e1c1cd4343_480x480.png?v=1697551010\" width=\"50\" height=\"21\"\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eConfigured for four-channel serial data exchange, the \u003cstrong\u003eBachmann RS204\u003c\/strong\u003e (\u003cstrong\u003eRS204\u003c\/strong\u003e Serial Communication Module) provides physical interfaces for RS232, RS422, and RS485 communication within an industrial control system. The module supports data rates up to 115.2 kbaud and receives 5 V DC system power.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003eRS204\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBachmann\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSerial Communication Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Channels\u003c\/td\u003e\n\u003ctd\u003e4 independent serial ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Interfaces\u003c\/td\u003e\n\u003ctd\u003eRS232, RS422, RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Data Rate\u003c\/td\u003e\n\u003ctd\u003e115.2 kbaud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e5 V DC, supplied through the system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eSub-D 9-pin per port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indication\u003c\/td\u003e\n\u003ctd\u003eLEDs for transmission, reception, and fault\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e49.5 x 103.5 x 72 mm (W x H x D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003eIEC 61131-2 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Serial Communication Interface\u003c\/h3\u003e\n\u003cp\u003eThe RS204 provides four independent serial ports for controller-to-device communication. Each port supports RS232, RS422, or RS485 electrical interfaces. Therefore, the selected interface should match the connected field device and cable arrangement.\u003c\/p\u003e\n\u003cp\u003eThe module supports communication rates up to 115.2 kbaud. RS422 and RS485 configurations support differential signaling, while RS232 provides single-ended serial communication. Each channel uses a Sub-D 9-pin connector for physical termination.\u003c\/p\u003e\n\u003ch3\u003ePLC Backplane and Interface Considerations\u003c\/h3\u003e\n\u003cp\u003eThe RS204 receives 5 V DC through the host system rather than through an independently specified field power input. Its stated power consumption remains below 3 W.\u003c\/p\u003e\n\u003cp\u003eThe four-channel architecture allows multiple serial devices to connect through one communication module. However, each connected device should use the corresponding electrical interface and compatible communication settings.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many serial communication channels does the RS204 provide?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The RS204 provides four independent serial communication ports.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which serial interfaces does the RS204 support?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The module supports RS232, RS422, and RS485 interfaces.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What power supply does the RS204 require?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The RS204 receives 5 V DC through the system and consumes less than 3 W.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the RS204 in the designated system mounting position and secure the module according to the host system's mechanical requirements.\u003c\/p\u003e\n\u003cp\u003eSelect RS232, RS422, or RS485 wiring according to the connected equipment. Keep communication cables separated from high-voltage and high-current power wiring where practical to reduce electrical interference.\u003c\/p\u003e\n\u003cp\u003eTerminate each serial connection using the appropriate Sub-D 9-pin connector. Verify signal assignment before energizing the system.\u003c\/p\u003e\n\u003cp\u003eFor shielded communication cables, connect the shield according to the control-system grounding design. Avoid creating unintended ground loops through multiple shield termination points.\u003c\/p\u003e\n\u003cp\u003eBefore commissioning, verify the communication interface, baud rate, cable polarity where applicable, and connected-device configuration. Also confirm that the system supplies the specified 5 V DC module power.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cimg height=\"21\" width=\"50\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0834\/0789\/6885\/files\/Bachmann_70f48a98-d9af-43aa-8a7a-47e1c1cd4343_480x480.png?v=1697551010\" alt=\"\"\u003eOther Attributes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCountry of Origin: \u003cspan\u003e Austria\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLead Time: In Stock, 2 Working Days\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cimg height=\"21\" width=\"50\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0834\/0789\/6885\/files\/Bachmann_70f48a98-d9af-43aa-8a7a-47e1c1cd4343_480x480.png?v=1697551010\" alt=\"\"\u003e\u003cspan\u003eIn Stock \u003c\/span\u003e\u003cspan\u003eHot Items \u003c\/span\u003eof Bachmann\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 362.27pt;\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"483\" height=\"126\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 166.50pt;\" width=\"222\"\u003e \u003ccol style=\"width: 103.50pt;\" width=\"138\"\u003e \u003ccol style=\"width: 92.25pt;\" width=\"123\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 13.50pt;\" height=\"18\"\u003e\n\u003ctd style=\"height: 13.50pt; width: 166.50pt;\" class=\"et2\" height=\"18\" width=\"222\"\u003eWT205V\u003c\/td\u003e\n\u003ctd style=\"width: 103.50pt;\" class=\"et2\" width=\"138\"\u003eAIO288\u003c\/td\u003e\n\u003ctd style=\"width: 92.25pt;\" class=\"et2\" width=\"123\"\u003eFM211\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 13.50pt;\" height=\"18\"\u003e\n\u003ctd style=\"height: 13.50pt;\" class=\"et2\" height=\"18\"\u003eBS208\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003ePCC200\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003eDIO248\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 13.50pt;\" height=\"18\"\u003e\n\u003ctd style=\"height: 13.50pt;\" class=\"et2\" height=\"18\"\u003eGIO212\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003eCM202\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003eBS206\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 13.50pt;\" height=\"18\"\u003e\n\u003ctd style=\"height: 13.50pt;\" class=\"et2\" height=\"18\"\u003eMX220\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003eACR222\/2\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003eDIO216\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 13.50pt;\" height=\"18\"\u003e\n\u003ctd style=\"height: 13.50pt;\" class=\"et2\" height=\"18\"\u003eMPC240\/W\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003eISI222\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003ePTAI216\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 13.50pt;\" height=\"18\"\u003e\n\u003ctd style=\"height: 13.50pt;\" class=\"et2\" height=\"18\"\u003eNT250\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003eMPC270\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003eMPC240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 13.50pt;\" height=\"18\"\u003e\n\u003ctd style=\"height: 13.50pt;\" class=\"et2\" height=\"18\"\u003eSWI205\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003eAI204\/2\u003c\/td\u003e\n\u003ctd class=\"et2\"\u003e00016586-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eOur Competitive Brands\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e- ABB Advant-800xA，Advant OCS，Bailey Infi 90 and Net 90，H\u0026amp;B Freelance 2000，DSQC Robots，IGCT \/ IGBT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- GE General Electric Field Control, Genius I\/O, QuickPanel, RX3i PacSystem, Series 90, Series 90, Series VersaMax\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Allen Bradley Allen-Bradley SLC500, MicroLogix, CompactLogix, ControlLogix, PLC-5, Panel View,\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Bently Nevada 3300 System, 3500 System\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Honeywell 7800 Series, FSC, IPC, Mxopen, TDC 2000, TDC 3000, Experion PKS(C200,C300)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Yokogawa Centum CS - Centum VP, Centum XL - micro XL, FA-M3, ProSafe-PLC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Ovation, Foxboro, EPRO, Emerson DeltaV, Fuji, Siemens, HIMA, Prosoft, Invensys Triconex, ICS TRIPLEX, Woodward, Bachmann, Schneider\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"tel:+8618030205725\"\u003e\u003cspan\u003e\u003cstrong\u003eTEL: +86 18030205725 \u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e    \u003ca href=\"maito:manskiwong@cambia.cn\"\u003e\u003cspan\u003e\u003cstrong\u003eE-MAIL: manskiwong@cambia.cn\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Bachmann","offers":[{"title":"Default Title","offer_id":50298823672117,"sku":"RS204","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0834\/0789\/6885\/files\/RS204.jpg?v=1732522456","url":"https:\/\/www.newgenplc.com\/products\/bachmann-rs204-serial-communication-module","provider":"New-Gen Automation Limited","version":"1.0","type":"link"}