{"product_id":"hwic-1dsu-56k4-cisco-1-port-4-wire-5664kbps-csudsu-wan-interface-card","title":"HWIC-1DSU-56K4 | Cisco 1-Port 4-Wire 56\/64kbps CSU\/DSU WAN Interface Card","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003eThe Cisco HWIC-1DSU-56K4 is a 1-port 4-wire CSU\/DSU WAN interface card that provides synchronous serial connectivity at 56 or 64 kbps. It performs both Channel Service Unit (CSU) and Data Service Unit (DSU) functions and supports dedicated point-to-point and switched digital data services over serial networks.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable width=\"100%\" style=\"height: 359.344px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 19.5938px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 19.5938px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 19.5938px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 19.5938px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\u003cspan data-sheets-root=\"1\"\u003eCisco\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 19.5938px;\"\u003eCategory\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 19.5938px;\"\u003e\n\u003cdiv class=\"mt-1 md:mt-0 column-left basis-2\/4 divide-y divide-rad-gray-10 border-b-[0.0625rem] border-rad-gray-10 md:border-0\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem] md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"max-w-[8rem] break-words\"\u003e\u003cspan\u003eNetwork Interface Modules\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 19.5938px;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 19.5938px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003eHWIC-1DSU-56K4\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 19.5938px;\"\u003e\u003cspan\u003eSubcategory\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 19.5938px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eSerial WAN Interface Cards\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 26.0066%; text-align: left; height: 39.1875px;\"\u003eInterface Type\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 73.6724%; height: 39.1875px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e4-Wire CSU\/DSU\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 22.5469px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 26.0066%; text-align: left; height: 22.5469px;\"\u003ePort Count\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 73.6724%; height: 22.5469px;\"\u003e1 Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.1875px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 26.0066%; text-align: left; height: 26.1875px;\"\u003eConnector Type\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 73.6724%; height: 26.1875px;\"\u003eRJ-48S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.1875px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 26.0066%; text-align: left; height: 20.1875px;\"\u003eData Rate\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 73.6724%; height: 20.1875px;\"\u003e56 or 64 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.1719px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 26.0066%; text-align: left; height: 24.1719px;\"\u003eNetwork Technology\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 73.6724%; height: 24.1719px;\"\u003eSynchronous Serial\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 30.1719px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 30.1719px;\"\u003eSupported Protocols\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 30.1719px;\"\u003eAT\u0026amp;T Accunet 56, Sprint VPN-56, DDS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 39.1875px;\"\u003eCompatible Platforms\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 39.1875px;\"\u003eCisco 1900 and 2900 Series ISRs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.5469px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 20.5469px;\"\u003eApplications\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 20.5469px;\"\u003eDedicated or switched WAN access via DDS or 4-wire networks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 19.5938px;\"\u003eForm Factor\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 19.5938px;\"\u003eHigh-Speed WAN Interface Card (HWIC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 26.0066%; text-align: left; height: 19.5938px;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"width: 73.6724%; height: 19.5938px;\"\u003e\u003cspan\u003e204 g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eHWIC-1DSU-56K4\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe HWIC-1DSU-56K4 interface card is designed for Cisco Integrated Services Routers (ISRs), such as the 1900 and 2900 series. This module provides a single RJ-48S synchronous serial port and integrates CSU\/DSU functionality into a single WAN interface card. It supports 4-wire 56K and 64Kbps digital lines compatible with a range of carrier services, including AT\u0026amp;T’s Accunet 56, Sprint’s VPN-56, and other DDS offerings conforming to AT\u0026amp;T Publication 62310. The card is ideal for enterprises or branch offices that require reliable, low-speed WAN connectivity to support legacy systems, private networks, or secure dial-in access. With seamless integration into Cisco’s IOS-based platforms, this HWIC offers stable and consistent WAN performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated CSU\/DSU: Combines both CSU and DSU functions for simplified WAN connectivity.\u003c\/li\u003e\n\u003cli\u003eSupports 56K and 64K Services: Compatible with switched and dedicated 4-wire digital networks.\u003c\/li\u003e\n\u003cli\u003eStandards-Based: Works with services following AT\u0026amp;T Publication 62310 for point-to-point or multipoint topologies.\u003c\/li\u003e\n\u003cli\u003eSingle RJ-48S Port: Uses a standard RJ-48S connector for straightforward cabling with telco circuits.\u003c\/li\u003e\n\u003cli\u003eSynchronous Serial Support: Provides a synchronous interface for reliable timing and stable connections.\u003c\/li\u003e\n\u003cli\u003eCompatibility with Cisco ISRs: Designed to work seamlessly with Cisco 1900 and 2900 Series routers.\u003c\/li\u003e\n\u003cli\u003eLow-Speed WAN Option: Ideal for locations with basic WAN needs or legacy infrastructure.\u003c\/li\u003e\n\u003cli\u003eFlexible Application Use: Supports both dedicated DDS and switched data service configurations.\u003c\/li\u003e\n\u003cli\u003eCarrier-Grade Interoperability: Compatible with AT\u0026amp;T Accunet 56, Sprint VPN-56, and other telecom data services.\u003c\/li\u003e\n\u003cli\u003eCompact HWIC Form Factor: Easy to install in high-density router configurations without additional rack space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe HWIC-1DSU-56K4 offers a compact and reliable solution for organizations seeking cost-effective serial WAN connectivity through legacy DDS and 4-wire digital networks.\u003c\/p\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":49105330962688,"sku":"HWIC-1DSU-56K4","price":833.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/shopping_75_0968a287-707e-4494-9f02-f8ef8fb5511e.webp?v=1785545044","url":"https:\/\/alotechparts.com\/products\/hwic-1dsu-56k4-cisco-1-port-4-wire-5664kbps-csudsu-wan-interface-card","provider":"Alo Tech Solutions","version":"1.0","type":"link"}