{"product_id":"arris-tm502","title":"Arris TM502G DOCSIS 2.0 Telephony Cable Modem","description":"\u003cdiv class=\"mg-product\"\u003e\n\n\u003ch3\u003eArris TM502G Overview\u003c\/h3\u003e\n\u003cp\u003eThe Arris Touchstone TM502G is a DOCSIS 2.0 telephony cable modem that delivers two lines of primary Voice over IP (VoIP) phone service along with high-speed internet access. Built on the proven Touchstone TM402 platform, it is a carrier-grade device engineered for dependable phone service, not just data.\u003c\/p\u003e\n\u003cp\u003eA single internal battery slot supports two battery pack options, keeping your phone line active during extended power outages. Long-life lithium-ion battery technology and software-configurable battery management keep operating costs low.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTwo lines of primary VoIP phone service plus high-speed data through one device\u003c\/li\u003e\n\u003cli\u003eSingle battery slot with two battery pack options for phone service during extended power outages\u003c\/li\u003e\n\u003cli\u003eLong-life lithium-ion battery technology with software-configurable battery management and reporting\u003c\/li\u003e\n\u003cli\u003eBoost Current and Automatic Gain compensation for tones and signals (FSK\/CAS) for broad phone equipment compatibility\u003c\/li\u003e\n\u003cli\u003eDOCSIS 2.0 certified, backward compatible with DOCSIS 1.1 and 1.0 networks\u003c\/li\u003e\n\u003cli\u003eOne 10\/100 Ethernet port and one USB port for wired connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eBuilt-In VoIP Phone Service\u003c\/h4\u003e\n\u003cp\u003eUnlike a standard cable modem, the TM502G includes an embedded multimedia terminal adapter (eMTA) with two RJ11 telephone ports, so your provider can deliver home phone and internet through a single device. Arris uses one firmware platform across all Touchstone telephony modems, which means consistent call quality and the reliability phone service demands: an occasional reboot may be tolerable for a data connection, but never for your phone line.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable class=\"mg-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDOCSIS Standard\u003c\/th\u003e\n\u003ctd data-label=\"DOCSIS Standard\"\u003eDOCSIS 2.0, backward compatible with 1.1 and 1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMax Speeds\u003c\/th\u003e\n\u003ctd data-label=\"Max Speeds\"\u003eUp to 38 Mbps download, 30 Mbps upload\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBest For\u003c\/th\u003e\n\u003ctd data-label=\"Best For\"\u003eLegacy accounts and plans up to about 30 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePhone Lines\u003c\/th\u003e\n\u003ctd data-label=\"Phone Lines\"\u003e2 primary VoIP lines (embedded eMTA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTelephone Ports\u003c\/th\u003e\n\u003ctd data-label=\"Telephone Ports\"\u003e2 x RJ11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEthernet Port\u003c\/th\u003e\n\u003ctd data-label=\"Ethernet Port\"\u003e1 x 10\/100 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUSB Port\u003c\/th\u003e\n\u003ctd data-label=\"USB Port\"\u003e1 x USB Type B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBattery Backup\u003c\/th\u003e\n\u003ctd data-label=\"Battery Backup\"\u003eSingle slot, supports two battery pack options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWi-Fi\u003c\/th\u003e\n\u003ctd data-label=\"Wi-Fi\"\u003eNone, pair with a separate router\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cdiv class=\"mg-included\"\u003e\n\u003cul\u003e\n\u003cli\u003eArris TM502G Telephony Cable Modem\u003c\/li\u003e\n\u003cli\u003eEthernet Cable\u003c\/li\u003e\n\u003cli\u003ePower Supply\u003c\/li\u003e\n\u003cli\u003eOnline Installation Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWill this work with my internet company?\u003c\/h3\u003e\n\u003cp\u003eThe Arris TM502G is primarily used with \u003ca href=\"https:\/\/www.modemguides.com\/collections\/mediacom\"\u003eMediacom\u003c\/a\u003e internet and phone service, most often on longstanding accounts that still include cable phone service. Because this is a DOCSIS 2.0 device, it is best suited to legacy plans and lower speed tiers, and some current plan speeds are not supported.\u003c\/p\u003e\n\u003cp\u003eAlways contact your service provider's customer service before placing your order to confirm this model will work with your account and plan. If you are on a newer or faster Mediacom plan, see our guide to \u003ca href=\"https:\/\/www.modemguides.com\/blogs\/modemguides-blog\/mediacom-approved-modems-by-speed-tier\"\u003eMediacom approved modems by speed tier\u003c\/a\u003e for current options.\u003c\/p\u003e\n\n\u003ch3\u003eSkip the Monthly Rental Fee\u003c\/h3\u003e\n\u003cp\u003eMediacom charges up to $14 per month to rent equipment, which adds up to about $168 per year. Owning your own modem means a professionally refurbished TM502G can pay for itself within a few months.\u003c\/p\u003e\n\n\u003ch3\u003eSetup and Activation\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConnect the coaxial cable from your wall outlet to the Cable port on the modem.\u003c\/li\u003e\n\u003cli\u003ePlug in the power supply and wait a few minutes for the status lights to stabilize.\u003c\/li\u003e\n\u003cli\u003eConnect your telephone to the Tel 1 port (use Tel 2 for a second line).\u003c\/li\u003e\n\u003cli\u003eConnect your computer or router to the Ethernet port.\u003c\/li\u003e\n\u003cli\u003eCall your provider to activate the modem. Have the MAC address and serial number from the label ready.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"mg-faq\"\u003e\n\u003ch4\u003eIs the Arris TM502G compatible with Mediacom?\u003c\/h4\u003e\n\u003cp\u003eYes, the TM502G has historically been used with Mediacom internet and phone service in most areas, mainly on legacy accounts. Confirm with Mediacom customer service before ordering, since some current plans and speeds are not supported.\u003c\/p\u003e\n\n\u003ch4\u003eWhat internet speeds does the TM502G support?\u003c\/h4\u003e\n\u003cp\u003eAs a DOCSIS 2.0 modem, the TM502G supports download speeds up to about 38 Mbps and uploads up to about 30 Mbps. It is a good match for legacy plans of 30 Mbps or less, not for modern high-speed tiers.\u003c\/p\u003e\n\n\u003ch4\u003eHow many phone lines does the TM502G support?\u003c\/h4\u003e\n\u003cp\u003eTwo. The built-in eMTA provides two primary VoIP phone lines through two RJ11 telephone ports.\u003c\/p\u003e\n\n\u003ch4\u003eDoes the TM502G have built-in Wi-Fi?\u003c\/h4\u003e\n\u003cp\u003eNo. The TM502G is a modem only. To create a wireless network, connect a separate router to its Ethernet port.\u003c\/p\u003e\n\n\u003ch4\u003eDoes the TM502G come with a backup battery?\u003c\/h4\u003e\n\u003cp\u003eThe TM502G has a single internal battery slot that supports two battery pack options. Refurbished units ship with the accessories listed in the What's Included section above. Without a battery installed, the modem runs normally on AC power, but phone service will not continue during a power outage.\u003c\/p\u003e\n\n\u003ch4\u003eShould I buy a DOCSIS 2.0 modem in 2026?\u003c\/h4\u003e\n\u003cp\u003eOnly for a specific legacy setup, usually an older account with cable phone service that still supports this model. For current internet plans, a DOCSIS 3.1 modem is the better choice. Browse our \u003ca href=\"https:\/\/www.modemguides.com\/collections\/mediacom\"\u003eMediacom compatible modems\u003c\/a\u003e for newer options.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n.mg-product { line-height: 1.6; color: inherit; }\n.mg-product h3 { margin: 28px 0 12px; color: inherit; }\n.mg-product h4 { margin: 22px 0 10px; color: inherit; }\n.mg-product p, .mg-product li { color: inherit; }\n.mg-product ul, .mg-product ol { margin: 0 0 16px; padding-left: 22px; }\n.mg-spec-table { width: 100%; border-collapse: collapse; margin: 16px 0 24px; border: 1px solid rgba(128,128,128,0.25); border-radius: 8px; overflow: hidden; }\n.mg-spec-table th, .mg-spec-table td { padding: 10px 14px; border-bottom: 1px solid rgba(128,128,128,0.2); text-align: left; vertical-align: top; color: inherit; }\n.mg-spec-table th { width: 42%; background: rgba(128,128,128,0.08); font-weight: 600; }\n.mg-spec-table tr:last-child th, .mg-spec-table tr:last-child td { border-bottom: none; }\n.mg-included { background: rgba(255,171,0,0.07); border: 1px solid rgba(128,128,128,0.25); border-radius: 8px; padding: 16px 20px; margin: 16px 0 24px; }\n.mg-included ul { margin: 0; padding-left: 20px; }\n.mg-faq h4 { margin: 20px 0 6px; }\n@media (max-width: 768px) {\n  .mg-spec-table, .mg-spec-table tbody, .mg-spec-table tr, .mg-spec-table td { display: block; width: 100%; }\n  .mg-spec-table th { display: none; }\n  .mg-spec-table tr { border-bottom: 1px solid rgba(128,128,128,0.2); padding: 10px 0; }\n  .mg-spec-table tr:last-child { border-bottom: none; }\n  .mg-spec-table td { border: none; padding: 2px 14px 8px; }\n  .mg-spec-table td::before { content: attr(data-label); display: block; font-weight: 600; opacity: 0.7; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.3px; padding-top: 8px; }\n}\n\u003c\/style\u003e","brand":"Arris","offers":[{"title":"Default Title","offer_id":40938143580246,"sku":"CMR326A","price":58.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/9463\/2534\/files\/Arris-TM502G.jpg?v=1712173098","url":"https:\/\/www.modemguides.com\/products\/arris-tm502","provider":"ModemGuides","version":"1.0","type":"link"}