{"product_id":"allen-bradley-1788-mchkr-media-checker","title":"Allen-Bradley 1788-MCHKR Media Checker","description":"\u003ch2\u003eAllen-Bradley 1788-MCHKR Media Checker\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1788-MCHKR\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1788-MCHKR\u003c\/strong\u003e Media Checker, operates as a dedicated handheld hardware component for cable diagnostics and length measurement within industrial communication networks. The device executes physical cable testing functions for ControlNet, DeviceNet, DH+, RIO, and Ethernet media.\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\u003e1788-MCHKR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Type\u003c\/td\u003e\n\u003ctd\u003eMedia Checker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.38 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +45 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eTwo AA 1.5 V alkaline batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003e1788 Linking Devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Tests\u003c\/td\u003e\n\u003ctd\u003eCable failure detection, cable length measurement, wire map testing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Networks\u003c\/td\u003e\n\u003ctd\u003eControlNet, DeviceNet, DH+, RIO, Ethernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Interface\u003c\/td\u003e\n\u003ctd\u003e2 line, 16 character LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Input Interface\u003c\/td\u003e\n\u003ctd\u003eEnter, Up, Down, Setup keys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Modes\u003c\/td\u003e\n\u003ctd\u003eOff, Test, Length, Wire Map\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Connectors\u003c\/td\u003e\n\u003ctd\u003eRJ45, DB-9, BNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Connections\u003c\/td\u003e\n\u003ctd\u003eSTP, RJ45, Coax\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Cable Range\u003c\/td\u003e\n\u003ctd\u003e1 m to 350 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Cable Resolution\u003c\/td\u003e\n\u003ctd\u003e0.5 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControlNet Cable Range\u003c\/td\u003e\n\u003ctd\u003e1 m to 650 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Battery Life\u003c\/td\u003e\n\u003ctd\u003eApprox. 50 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Network Cable Diagnostic Functions\u003c\/h3\u003e\n\u003cp\u003eThe 1788-MCHKR provides direct electrical verification of industrial network media by applying cable test routines across multiple communication standards. The unit supports Ethernet UTP\/FTP cables, ControlNet coaxial cables, DeviceNet trunk and drop cables, DH+ communication cables, and Remote I\/O cable types.\u003c\/p\u003e\n\u003cp\u003eThe diagnostic operation includes cable failure identification, wire mapping, and cable length measurement. The handheld interface displays test results through a two-line LCD, allowing field verification without connection to a controller or programming workstation.\u003c\/p\u003e\n\u003cp\u003eFor Allen-Bradley industrial control networks, the media checker supports physical layer inspection associated with EtherNet\/IP deterministic networks, ControlNet coaxial links, and legacy DH+\/RIO communication infrastructure. The device is used to verify network media integrity before controller-level communication troubleshooting.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1788-MCHKR require external power during cable testing?\u003cbr\u003eA: No. The device operates from two AA 1.5 V alkaline batteries and provides portable cable diagnostic operation.\u003c\/p\u003e\n\u003cp\u003eQ: Which physical interfaces are available for cable connection?\u003cbr\u003eA: The device provides RJ45, DB-9, and BNC input connectors for Ethernet, DH+\/RIO, ControlNet, and related network media testing.\u003c\/p\u003e\n\u003cp\u003eQ: Can the device measure Ethernet cable length?\u003cbr\u003eA: Yes. The 1788-MCHKR supports Ethernet cable length measurement from 1 m to 350 m with 0.5 m resolution.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect communication cables from active network equipment before performing cable diagnostics.\u003c\/li\u003e\n\u003cli\u003eConfirm the selected test mode matches the connected cable type before initiating measurement.\u003c\/li\u003e\n\u003cli\u003eMaintain proper shielding practices when testing shielded twisted pair (STP) and coaxial communication cables.\u003c\/li\u003e\n\u003cli\u003eAvoid connecting the unit to energized communication circuits unless the network design permits passive diagnostic connection.\u003c\/li\u003e\n\u003cli\u003eStore the device with batteries removed if extended storage conditions are expected.\u003c\/li\u003e\n\u003cli\u003eVerify connector condition on RJ45, DB-9, and BNC interfaces before field testing.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43762860392538,"sku":"1788-MCHKR","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1788-MCHKR2.jpg?v=1785394620","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1788-mchkr-media-checker","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}