{"product_id":"cisco-12v-dc-40w-power-supply-psu-12vdc-40w2","title":"Cisco 12V DC 40W Power Supply - PSU-12VDC-40W2=","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003ePSU-12VDC-40W2= is Cisco's 12V DC 40W external power supply. It is the local power option for the \u003ca href=\"https:\/\/creationnetworks.net\/products\/cisco-webex-ptz-4k-camera\"\u003eCisco Webex PTZ 4K Camera\u003c\/a\u003e, which draws 12V\/3A, in installations where a PoE+ (IEEE 802.3at) port is not available at the camera position. The same part number also served the older Cisco TelePresence E20 IP video phone, so it appears in reseller catalogues under both descriptions. It is ordered as a separate line, either as the primary power method or as a spare.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThis part gets specified for one of two reasons, and it is worth knowing which one applies before it goes on the order. The first is that the network position serving the camera cannot deliver PoE+. That happens more often than switch datasheets suggest, usually because the port budget on an existing access switch is already committed, or because the camera is landing on a small unmanaged switch that was never in the AV scope. The second reason is spares: on a site where the camera is powered locally, a failed adapter takes the room out of service, and a shelf spare is cheaper than an emergency order.\u003c\/p\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/webex-ptz-4k-camera-ds_0_103d892f-8ffa-4e94-b137-9976d4a1b0ba.png?v=1788639448\" alt=\"Cisco Webex PTZ 4K Camera, the device this PSU-12VDC-40W2= 12V 40W supply powers when PoE+ is unavailable\"\u003e\u003cp\u003eThe practical consequence of choosing local power is a mains outlet at the camera position, which is a different trade and often a different drawing. At a wall position on the \u003ca href=\"https:\/\/creationnetworks.net\/products\/cisco-bracket-for-mounting-of-ptz-4k-camera\"\u003eCS-PTZ4K-BRKT wall bracket\u003c\/a\u003e, or at a ceiling position, that outlet has to be co-ordinated with the electrical contractor before the wall closes, and the adapter itself needs somewhere to sit that is neither visible from the room nor buried where it cannot be reached for service. Where the choice is still open, PoE+ over the existing Cat 6 run is usually the cheaper path, because it removes the outlet and the adapter from the estimate together. At 40W the supply has headroom over the camera's 36W draw at 12V\/3A, so it is sized for the load rather than sitting at its limit. Note that this is not a universal Cisco 12V part: the \u003ca href=\"https:\/\/creationnetworks.net\/products\/cisco-room-vision-ptz-camera\"\u003eRoom Vision PTZ camera\u003c\/a\u003e is PoE+ only, and where its switch port cannot supply PoE+ the correct accessory is the CS-PWR-INJ-30W injector rather than a DC adapter. Both cameras, and the codecs they run behind, sit in our \u003ca href=\"https:\/\/creationnetworks.net\/collections\/cisco\"\u003eCisco video conferencing\u003c\/a\u003e range.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V DC, 40W Output\u003c\/strong\u003e — The supply delivers 12V DC at up to 40W, with headroom over the PTZ 4K camera's 12V\/3A draw.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal Power for the PTZ 4K Camera\u003c\/strong\u003e — It powers the Cisco Webex PTZ 4K Camera at positions where no PoE+ (IEEE 802.3at) port is available.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Adapter Form\u003c\/strong\u003e — It is a standalone external power adapter, so it needs a mains outlet and a serviceable location at the camera position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso Serves the TelePresence E20\u003c\/strong\u003e — The same part number was supplied with the legacy Cisco TelePresence E20 IP video phone, which is why it appears under two descriptions in reseller catalogues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUseful as a Shelf Spare\u003c\/strong\u003e — On sites where cameras are locally powered, a spare adapter keeps a failed supply from taking a room out of service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot the Room Vision PTZ Part\u003c\/strong\u003e — The Room Vision PTZ is PoE+ only, and the correct accessory for a port that cannot supply PoE+ there is the CS-PWR-INJ-30W injector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:420px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:2px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:2px solid #ddd;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eManufacturer part number\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePSU-12VDC-40W2=\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eOutput\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e12V DC, 40W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eForm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eExternal power adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePrimary application\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCisco Webex PTZ 4K Camera (12V\/3A); legacy TelePresence E20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAlternative to\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePoE+ (IEEE 802.3at) over the camera's network run\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eNot compatible with\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCisco Room Vision PTZ (PoE+ only; use CS-PWR-INJ-30W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":48315187298540,"sku":"PSU-12VDC-40W2=","price":150.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/webex-ptz-4k-camera-ds_0_103d892f-8ffa-4e94-b137-9976d4a1b0ba.png?v=1788639448","url":"https:\/\/creationnetworks.net\/products\/cisco-12v-dc-40w-power-supply-psu-12vdc-40w2","provider":"Creation Networks","version":"1.0","type":"link"}